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for pricing, delivery, and ordering information, please contact maxim/dallas direct! at 1-888-629-4642, or visit maxim? website at www.maxim-ic.com. _________________ general description the max4214/max4215/max4217/max4219/MAX4222 are precision, closed-loop, gain of +2 (or -1) buffers featuring high slew rates, high output current drive, and low differential gain and phase error. they operate with a single 3.15v to 11v supply or with ?.575v to ?.5v dual supplies. the input common-mode voltage range extends 100mv beyond the negative power-supply rail, and the output swings rail-to-rail . these devices require only 5.5ma of quiescent supply current while achieving a 230mhz -3db bandwidth and a 600v/? slew rate. in addition, the max4215/ max4219 have a disable feature that reduces the sup- ply current to 400? per buffer. input voltage noise is only 10nv/ hz, and input current noise is only 1.3pa/ hz . this buffer family is ideal for low-power/low- voltage applications requiring wide bandwidth, such as video, communications, and instrumentation systems. for space-sensitive applications, the max4214 comes in a miniature 5-pin sot23 package. ________________________applications battery-powered instruments video line drivers analog-to-digital converter interface ccd imaging systems video routing and switching systems video multiplexing applications ____________________________features internal precision resistors for closed-loop gains of +2v/v or -1v/v high speed 230mhz -3db bandwidth 90mhz 0.1db gain flatness (max4219/MAX4222) 600v/s slew rate single 3.3v/5.0v operation outputs swing rail-to-rail input common-mode range extends beyond v ee low differential gain/phase error: 0.03%/0.04 low distortion at 5mhz -72dbc sfdr -71db total harmonic distortion high output drive: 120ma low 5.5ma supply current 400a shutdown supply current (max4215/max4219) space-saving sot23, max, or qsop packages max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable ________________________________________________________________ maxim integrated products 1 v ee in- in+ 1 5 v cc out max4214 sot23-5 top view 2 3 4 19-4754; rev 1; 8/01 part max4214 euk-t max4215 esa max4215eua -40? to +85? -40? to +85? -40? to +85? temp range pin- package 5 sot23-5 8 so 8 ?ax typical application circuit appears at end of data sheet. rail-to-rail is a registered trademark of nippon motorola, ltd. pin configurations continued at end of data sheet. no. of amps enable max4214 1 no max4215 1 yes part pin-package 5 sot23 8 so/?ax max4217 2 no max4219 3 yes 8 so/?ax 14 so, 16 qsop MAX4222 4 no 14 so, 16 qsop top mark abah __________________pin configurations _______________ordering information ______________________selector guide max4217 esa max4217eua -40? to +85? -40? to +85? 8 so 8 ?ax max4219 esd max4219eee -40? to +85? -40? to +85? 14 so 16 qsop MAX4222 esd MAX4222eee -40? to +85? -40? to +85? 14 so 16 qsop
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 2 _______________________________________________________________________________________ absolute maximum ratings dc electrical characteristics (v cc = 5v, v ee = 0, in_- = 0, en_ = 5v, r l = to 0, v out = v cc /2, noninverting configuration, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) stresses beyond those listed under ?bsolute maximum ratings?may cause permanent damage to the device. these are stress rating s only, and functional operation of the device at these or any other conditions beyond those indicated in the operational sections of the specificatio ns is not implied. exposure to absolute maximum rating conditions for extended periods may affect device reliability. supply voltage (v cc to v ee ) ..................................................12v in_-, in_+, out_, en_ ....................(v ee - 0.3v) to (v cc + 0.3v) output short-circuit duration to v cc or v ee ..............continuous continuous power dissipation (t a = +70?) 5-pin sot23 (derate 7.1mw/? above +70?).............571mw 8-pin so (derate 5.9mw/? above +70?)...................471mw 8-pin ?ax (derate 4.1mw/? above +70?) .............330mw 14-pin so (derate 8.3mw/? above +70?)................667mw 16-pin qsop (derate 8.3mw/? above +70?)...........667mw operating temperature range ...........................-40? to +85? storage temperature range .............................-65? to +150? lead temperature (soldering, 10s) .................................+300? v cc to v ee , guaranteed by psrr tests r l = 50 ? 3.15 11.0 ?50 0.04 0.075 in_- sot23-5, ?ax v ee - 0.1 v cc + 0.1 so, qsop v cc - v oh in_+ v v ee - 0.1 v cc - 2.25 operating supply voltage range sinking or sourcing v ol - v ee v cc - v oh v ol - v ee v cc - v oh in_+, over input voltage range m ? 3 conditions between any two channels for max4217/max4219/MAX4222 410 input resistance in_+ ? 5.4 12 i b input bias current mv 1 input offset voltage matching v in 55 58 input voltage range ?/? 45 r l 50 ? , (v ee + 0.5v) v out (v cc - 2.0v) v cc = 5v, v ee = 0, v out = 2.0v 60 66 v ol - v ee r l = 150 ? 0.04 0.075 r l = 2k ? 0.06 v cc = 3.3v, v ee = 0, v out = 0.90v v 0.06 25 power-supply rejection ratio (note 2) v/v 1.9 2 2.1 r in max4215/max4219 v v cc - 2.6 v il en_ logic low threshold a v voltage gain 8 tcv os input offset voltage drift v cc - 1.6 max4215/max4219, en_ = 0, 0 v out 5v mv 415 v os input offset voltage v cc = 5v, v ee = -5v, v out = 0 f = dc r out psrr output resistance max4215/max4219 m ? v v ih en_ logic high threshold db k ? 1 r out(off) disabled output resistance units min typ max symbol parameter 1.60 1.90 r l = 50 ? ma 0.75 1.00 i sc short-circuit output current ?0 120 v out output voltage swing v r l = 20 ? to v cc or v ee ma ?0 i out output current t a = +25? t a = t min to t max
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable _______________________________________________________________________________________ 3 dc electrical characteristics (continued) (v cc = 5v, v ee = 0, in_- = 0, en_ = 5v, r l = to 0, v out = v cc /2, noninverting configuration, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) (note 1) ac electrical characteristics (v cc = 5v, v ee = 0, in_- = 0, en_ = 5v, r l = 100 ? to v cc /2, noninverting configuration, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) conditions ma 5.5 7.0 i cc quiescent supply current (per buffer) 200 350 max4215/max4219, en_ = v ee 0.5 10 0.5 units min typ max symbol parameter ? ? max4215/max4219, en_ = v cc max4215/max4219, (v ee + 0.2v) en_ v cc i ih i il en_ logic input high current en_ logic input low current max4214/max4215/max4217 230 0.04 10 v out = 2v p-p mhz 220 f = 10mhz fpbw full-power -3db bandwidth max4214/max4215/max4217 200 ntsc, r l = 150 ? max4214/max4215/max4217 max4219/MAX4222 max4219/MAX4222 max4219/MAX4222 v out = 100mv p-p ns 1 conditions v out = 2v step 200 rise/fall time v out = 2v step ns 45 t s settling time to 0.1% v/? 600 sr slew rate v out = 100mv p-p bw -3db -72 dbc second harmonic small-signal -3db bandwidth mhz -71 f c = 5mhz, v out = 2v p-p v out = 2v p-p , f c = 5mhz -77 pf 1 max4215/max4219, en_ = 0 third harmonic 2 c in input capacitance total harmonic distortion 35 dbc -72 t r , t f sfdr spurious-free dynamic range 90 v out = 100mv p-p 50 bw 0.1db bandwidth for 0.1db gain flatness mhz f = 10mhz ip3 hd third-order intercept harmonic distortion dbm c out(off) units min typ max symbol parameter disabled output capacitance pf 0.03 f = 10khz degrees 1.3 dp differential phase error dbm 11 input 1db compression point ntsc, r l = 150 ? f = 10khz i n e n dg input noise-current density input noise-voltage density differential gain error pa/ hz nv/ hz % max4215/max4219, disabled (en_ = v ee ) ? 400 550 i sd shutdown supply current note 1: the max421_eu_ is 100% production tested at t a = 25?. specifications over temperature limits are guaranteed by design. note 2: psrr for single 5v supply tested with v ee = 0, v cc = 4.5v to 5.5v; for dual ?v supply with v ee = -4.5v to -5.5v, v cc = 4.5v to 5.5v; and for single 3v supply with v ee = 0, v cc = 3.15v to 3.45v.
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 4 _______________________________________________________________________________________ __________________________________________typical operating characteristics (v cc = 5v, v ee = 0, a vcl = 2v/v, r l = 100 ? to v cc /2, t a = +25?, unless otherwise noted.) 10 0 100k 1m 10m 100m 1g max4214/max4215/max4217 small-signal gain vs. frequency 2 max4214 toc01 frequency (hz) gain (db) 4 6 8 9 1 3 5 7 v out = 100mv p-p 5.5 100k 1m 10m 100m 1g max4214/max4215/max4217 gain flatness vs. frequency frequency (hz) 5.6 6.5 5.7 max4214 toc02 gain (db) 5.9 6.1 6.3 6.4 5.8 6.0 6.2 v out = 100mv p-p 10 0 100k 1m 10m 100m 1g max4214/max4215/max4217 large-signal gain vs. frequency 2 max4214 toc03 frequency (hz) gain (db) 4 6 8 9 1 3 5 7 v out = 2v p-p 10 0 100k 1m 10m 100m 1g max4219/MAX4222 small-signal gain vs. frequency 2 max4214 toc04 frequency (hz) gain (db) 4 6 8 9 1 3 5 7 v out = 100mv p-p 5.5 100k 1m 10m 100m 1g max4219/MAX4222 gain flatness vs. frequency frequency (hz) 5.6 6.5 5.7 max4214 toc05 gain (db) 5.9 6.1 6.3 6.4 5.8 6.0 6.2 v out = 100mv p-p 10 0 100k 1m 10m 100m 1g max4219/MAX4222 large-signal gain vs. frequency 2 max4214 toc06 frequency (hz) gain (db) 4 6 8 9 1 3 5 7 v out = 2v p-p r l = 100 ? ac electrical characteristics (continued) (v cc = 5v, v ee = 0, in_- = 0, en_ = 5v, r l = 100 ? to v cc /2, noninverting configuration, t a = t min to t max , unless otherwise noted. typical values are at t a = +25?.) all-hostile crosstalk x talk max4217/max4219/MAX4222, f = 10mhz, v out = 2v p-p db parameter symbol min typ max units buffer enable time t on 100 ns -95 buffer gain matching db max4217/max4219/MAX4222, f = 10mhz, v out = 100mv p-p max4215/max4219 0.1 buffer disable time t off 1 ? max4215/max4219 output impedance z out 200 m ? f = 10mhz conditions
0 -100 100k 1m 10m 100m harmonic distortion vs. frequency -80 max4214 toc07 frequency (hz) harmonic distortion (dbc) -60 -40 -20 -10 -90 -70 -50 -30 v out = 2v p-p 2nd harmonic 3rd harmonic 0 -100 0 100 200 300 400 500 600 700 800 900 1k harmonic distortion vs. resistive load -80 max4214 toc08 resistive load ( ? ) harmonic distortion (dbc) -60 -40 -20 -10 -90 -70 -50 -30 v out = 2v p-p f = 5mhz 2nd harmonic 3rd harmonic 0 -100 0.5 1.0 1.5 2.0 2.5 3.0 3.5 harmonic distortion vs. voltage swing -80 max4214 toc09 voltage swing (vp-p) harmonic distortion (dbc) -60 -40 -20 -10 -90 -70 -50 -30 f = 5mhz 2nd harmonic 3rd harmonic max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply , gain of 2, closed-loop, rail-to-rail buffers with enable _______________________________________________________________________________________ 5 100 10 1 1 10 1k 10m 1m voltage-noise density vs. frequency max4214 toc10 frequency (hz) noise (nv/ hz) 100 10k 100k 10 1 1 10 1k 10m 1m current-noise density vs. frequency frequency (hz) noise (pa/ hz) 100 10k 100k max4214 toc11 50 -150 100k 1m 10m 100m 1g max4217/max4219/MAX4222 crosstalk vs. frequency -110 max4214 toc12 frequency (hz) crosstalk (db) -70 -30 10 30 -130 -90 -50 -10 _____________________________typical operating characteristics (continued) (v cc = 5v, v ee = 0, a vcl = 2v/v, r l = 100 ? to v cc /2, t a = +25?, unless otherwise noted.) 20 -80 100k 1m 10m 100m power-supply rejection vs. frequency -60 max4214 toc13 frequency (hz) power-supply rejection (db) -40 -20 0 10 -70 -50 -30 -10 10 -90 100k 10m 100m 1m max4215/max4219 off-isolation vs. frequency -80 max4214 toc14 frequency (hz) off-isolation (db) -70 -60 -50 -40 -30 -20 -10 0 100 0.01 100k 1m 10m 100m 1g closed-loop output impedance vs. frequency max4214 toc15 frequency (hz) impedance ( ? ) 10 0.1 1
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 6 _______________________________________________________________________________________ in out 25mv/div small-signal pulse response max4214 toc19 20ns/div v cm = 1.25v, r l = 100 ? to ground in out 500mv/div large-signal pulse response max4214 toc20 20ns/div v cm = 0.9v, r l = 100 ? to ground en_ 5.0v (enable) 0 (disable) 1v 0 out enable response time max4214 toc21 1 s/div v in = 0.5v in out 25mv/div small-signal pulse response (c l = 5pf) 20ns/div v cm = 1.25v, r l = 100 ? to 0 max4214 toc22 in out 500mv/div large-signal pulse response (c l = 5pf) max4214 toc23 20ns/div v cm = 1.75v, r l = 100 ? to 0 5.0 4.8 4.6 4.2 4.4 4.0 max4214 toc24 temperature ( c) -25 -50 0 75 50 25 100 voltage swing vs. temperature voltage swing (vp-p) r l = 150 ? to 0 -0.06 0 100 0 100 differential gain and phase -0.01 -0.04 0.00 -0.02 0.01 0.00 0.02 0.02 0.04 0.03 ire ire diff. phase (deg) diff. gain (%) max4214 toc16 r l = 150 ? v cm = 1.35v r l = 150 ? v cm = 1.35v 350 300 250 150 50 100 200 0 max4214 toc17 load resistance ( ? ) 100 0 200 500 400 300 closed-loop bandwidth vs. load resistance closed-loop bandwidth (mhz) v out = 100mv p-p 4.5 5.0 4.0 3.5 2.5 2.0 1.5 3.0 1.0 max4214 toc18 load resistance ( ? ) 25 50 75 100 125 150 175 200 225 250 output swing vs. load resistance output swing (vp-p) _____________________________typical operating characteristics (continued) (v cc = 5v, v ee = 0, a vcl = 2v/v, r l = 100 ? to v cc /2, t a = +25?, unless otherwise noted.)
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply , gain of 2, closed-loop, rail-to-rail buffers with enable _______________________________________________________________________________________ 7 5 4 3 1 2 0 max4214 toc25 temperature ( c) -25 -50 0 75 50 25 100 input offset voltage vs. temperature input offset voltage (mv) 6.0 5.5 4.5 5.0 4.0 max4214 toc26 temperature ( c) -25 -50 0 75 50 25 100 input bias current vs. temperature input bias current ( a ) 0.20 0.16 0.12 0.04 0.08 0 max4214 toc27 temperature ( c) -25 -50 0 75 50 25 100 input offset current vs. temperature input offset current ( a) 10 8 6 4 2 0 max4214 toc28 power-supply voltage (v) 4 3 5 6 7 8 9 10 11 power-supply current (ma) power-supply current (per amplifier) vs. power-supply voltage 7 6 4 5 3 max4214 toc29 temperature ( c) -25 -50 0 75 50 25 100 power-supply current (per amplifier) vs. temperature power-supply current (ma) _____________________________typical operating characteristics (continued) (v cc = 5v, v ee = 0, a vcl = 2v/v, r l = 100 ? to v cc /2, t a = +25?, unless otherwise noted.)
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 8 _______________________________________________________________________________________ 1 6 out amplifier output 3 3 in+ noninverting input 2 4 4 11 13 11 13 v ee negative power supply or ground (in single-supply operation) 5 7 8 4 4 4 4 v cc positive power supply 1 1 ena enable amplifier a 1, 5 max4215 max4217 max4214 8 en enable amplifier 4 2 in- inverting input 2 2 enc enable amplifier c 2 6 6 2 2 ina- amplifier a inverting input 1 7 7 1 1 outa amplifier a output pin 8, 9 qsop so so 7 8 10 7 7 outb amplifier b output 5 10 12 5 8, 9 qsop 5 inb+ amplifier b noninverting input 6 9 11 6 6 inb- amplifier b inverting input n.c. 3 5 5 3 3 ina+ amplifier a noninverting input 3 3 enb enable amplifier b no connection. not internally connect- ed. tie to ground or leave open. 13 15 9 11 inc- amplifier c inverting input 14 16 8 10 outc amplifier c output 14 16 outd amplifier d output 12 14 ind+ amplifier d noninverting input 13 15 ind- amplifier d inverting input 12 14 10 12 inc+ amplifier c noninverting input name function max4219 MAX4222 _______________________________________________________________pin description sot23-5 so/max so/max
______________ _ _ detailed description the max4214/max4215/max4217/max4219/MAX4222 are single-supply, rail-to-rail output, voltage-feedback, closed-loop buffers that employ current-feedback tech- niques to achieve 600v/? slew rates and 230mhz bandwidths. these buffers use internal 500 ? resistors to provide a preset closed-loop gain of 2v/v in the non- inverting configuration or -1v/v in the inverting configu- ration. excellent harmonic distortion and differential gain/phase performance make them an ideal choice for a wide variety of video and rf signal-processing appli- cations. local feedback around the buffer? output stage ensures low output impedance, which reduces gain sensitivity to load variations. this feedback also pro- duces demand-driven current bias to the output tran- sistors for ?20ma drive capability, while constraining total supply current to less than 7ma. ___________ applications information power supplies these devices operate from a single 3.15v to 11v power supply or from dual supplies of ?.575v to ?.5v. for single-supply operation, bypass the v cc pin to ground with a 0.1? capacitor as close to the pin as possible. if operating with dual supplies, bypass each supply with a 0.1? capacitor. selecting gain configuration each buffer in the max4214 family can be configured for a voltage gain of 2v/v or -1v/v. for a gain of 2v/v, ground the inverting terminal. use the noninverting ter- minal as the signal input of the buffer (figure 1a). grounding the noninverting terminal and using the inverting terminal as the signal input configures the buffer for a gain of -1v/v (figure 1b). since the inverting input exhibits a 500 ? input imped- ance, terminate the input with a 56 ? resistor when con- figured for an inverting gain in 50 ? applications (terminate with 88 ? in 75 ? applications). terminate the input with a 49.9 ? resistor in the noninverting case. output terminating resistors should directly match cable impedances in either configuration. layout techniques maxim recommends using microstrip and stripline tech- niques to obtain full bandwidth. to ensure the pc board does not degrade the buffer? performance, design it for a frequency greater than 1ghz. pay care- ful attention to inputs and outputs to avoid large para- sitic capacitance. whether or not you use a constant- impedance board, observe the following guidelines when designing the board: ? don? use wire-wrapped boards. they are too induc- tive. ? don? use ic sockets. they increase parasitic capac- itance and inductance. ? use surface-mount instead of through-hole compo- nents for better high-frequency performance. ? use a pc board with at least two layers; it should be as free from voids as possible. ? keep signal lines as short and as straight as possi- ble. do not make 90 turns; round all corners. input voltage range and output swing the max4214 family? input range extends from (v ee - 100mv) to (v cc - 2.25v). input ground sensing increases the dynamic range for single-supply applica- tions. the outputs drive a 2k ? load to within 60mv of the power-supply rails. with smaller resistive loads, the output swing is reduced as shown in the electrical characteristics and typical operating characteristics . max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable _______________________________________________________________________________________ 9 max42_ _ 500 ? 500 ? in- out r o r to out in r tin in+ figure 1a. noninverting gain configuration (a v = +2v/v) max42_ _ 500 ? 500 ? out r o r to out r s r tin in+ in- in figure 1b. inverting gain configuration (a v = -1v/v)
max4214/max4215/max4217/max4219/MAX4222 as the load resistance decreases, the useful input range is effectively limited by the output drive capability, since the buffers have a fixed voltage gain of 2v/v or -1v/v. for example, a 50 ? load can typically be driven from 40mv above v ee to 1.6v below v cc , or 40mv to 3.4v when operating from a single 5v supply. if the buffer is operated in the noninverting, gain of 2v/v configuration with the inverting input grounded, the useful input volt- age range becomes 20mv to 1.7v instead of the -100mv to 2.75v indicated by the electrical character- istics . beyond the useful input range, the buffer output is a nonlinear function of the input, but it will not under- go phase reversal or latchup. enable the max4215/max4219 have an enable feature (en_) that allows the buffer to be placed in a low-power state. when the buffers are disabled, the supply current is reduced to 400? per buffer. as the voltage at the en_ pin approaches the negative supply rail, the en_ input current rises. figure 2 shows a graph of en_ input current versus en_ pin voltage. figure 3 shows the addition of an optional resistor in series with the en pin, to limit the magnitude of the cur- rent increase. figure 4 displays the resulting en pin input current to voltage relationship. disabled output resistance the max4214/max4215/max4217/max4219/MAX4222 include internal protection circuitry that prevents dam- age to the precision input stage from large differential input voltages (figure 5). this protection circuitry con- sists of five back-to-back schottky diodes between in_+ and in_-. these diodes reduce the disabled out- put resistance from 1k ? to 500 ? when the output volt- age is 3v greater or less than the voltage at in_+. under these conditions, the input protection diodes will be forward biased, lowering the disabled output resis- tance to 500 ? . output capacitive loading and stability the max4214 family provides maximum ac perfor- mance with no load capacitance. this is the case when the load is a properly terminated transmission line. these devices are designed to drive up to 20pf of load capacitance without oscillating, but ac performance will be reduced under these conditions. high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 10 ______________________________________________________________________________________ 20 -160 0 100 300 500 -100 -120 0 v il (mv above v ee ) input current ( a) 200 400 -60 -140 -20 -40 -80 figure 2. enable logic-low input current vs. enable logic- low threshold out in- en_ in+ 10k ? enable 500 ? 500 ? max42_ _ figure 3. circuit to reduce enable logic-low input current 0 -10 0 100 300 500 -7 -8 -1 v il (mv above v ee ) input current ( a) 200 400 -3 -5 -9 -2 -4 -6 figure 4. enable logic-low input current vs. enable logic- low threshold with 10k ? series resistor
driving large capacitive loads increases the chance of oscillations occurring in most amplifier circuits. this is especially true for circuits with high loop gains, such as voltage followers. the buffer? output resistance and the load capacitor combine to add a pole and excess phase to the loop response. if the frequency of this pole is low enough to interfere with the loop response and degrade phase margin sufficiently, oscillations can occur. a second problem when driving capacitive loads results from the amplifier? output impedance, which looks inductive at high frequencies. this inductance forms an l-c resonant circuit with the capacitive load, which causes peaking in the frequency response and degrades the amplifier? gain margin. figure 6 shows the devices?frequency response under different capacitive loads. to drive loads with greater than 20pf of capacitance or to settle out some of the peaking, the output requires an isolation resistor like the one shown in figure 7. figure 8 is a graph of the optimal isolation resistor vs. load capacitance. figure 9 shows the frequency response of the max4214/max4215/max4217/max4219/MAX4222 when driving capacitive loads with a 27 ? isolation resistor. coaxial cables and other transmission lines are easily driven when properly terminated at both ends with their characteristic impedance. driving back-terminated transmission lines essentially eliminates the lines capacitance. max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable ______________________________________________________________________________________ 11 max4214 max4215 max4217 max4219 MAX4222 500 ? 500 ? out in- in+ figure 5. input protection circuit 6 -4 100k 10m 100m 1m 1g -2 frequency (hz) normalized gain (db) 0 2 4 5 -3 -1 1 3 c l = 10pf c l = 5pf c l = 15pf figure 6. small-signal gain vs. frequency with load capacitance and no isolation resistor 500 ? 500 ? r iso c l v out v in r tin 50 ? max42_ _ figure 7. driving a capacitive load through an isolation resistor 14 16 12 10 6 4 2 8 0 c load (pf) 0 50 100 150 200 250 r iso ( ? ) figure 8. isolation resistance vs. capacitive load
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 12 ______________________________________________________________________________________ max4214 75 ? 500 ? gain of +2 video/rf cable driver 500 ? v out in- in+ 75 ? _________typical application circuit 3 -7 100k 10m 100m 1m 1g -5 frequency (hz) normalized gain (db) -3 -1 1 2 -6 -4 -2 0 c l = 68pf r iso = 27 ? c l = 120pf c l = 47pf figure 9. small-signal gain vs. frequency with load capacitance and 27 ? isolation resistor chip information max4214 transistor count: 95 max4215 transistor count: 95 max4217 transistor count: 190 max4219 transistor count: 299 MAX4222 transistor count: 362 substrate connected to v ee
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable ______________________________________________________________________________________ 13 out n.c. v ee 1 2 8 7 en v cc in- in+ n.c. so/ max top view 3 4 6 5 max4215 inb- inb+ v ee 1 2 8 7 v cc outb ina- ina+ outa so/ max 3 4 6 5 max4217 14 13 12 11 10 9 8 1 2 3 4 5 6 7 outc inc- inc+ v ee v cc enb enc ena max4219 inb+ inb- outb outa ina- ina+ so 14 13 12 11 10 9 8 1 2 3 4 5 6 7 outd ind- ind+ v ee v cc ina+ ina- outa MAX4222 inc+ inc- outc outb inb- inb+ so 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 ena outc inc- inc+ v ee inb+ inb- outb n.c. max4219 qsop enc enb ina- v cc ina+ outa n.c. 16 15 14 13 12 11 10 9 1 2 3 4 5 6 7 8 outa outd ind- ind+ v ee inc+ inc- outc n.c. MAX4222 qsop ina- ina+ inb- v cc inb+ outb n.c. _______________________________________________ pin configurations (continued)
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable 14 ______________________________________________________________________________________ __________________________________________________tape-and-reel information sot5l.eps p d e f w p 2 p 0 d 1 a 0 b 0 k 0 t 0.102 0.102 a 0 b 0 d d 1 3.200 3.099 1.499 0.991 0.102 0.051 0.102 0.102 1.753 3.505 1.397 3.988 e f k 0 p +0.102 +0.000 note: dimensions are in mm. and follow eia481-1 standard. +0.305 -0.102 +0.254 +0.000 p 0 3.988 0.102 p 0 10 40.005 0.203 p 2 2.007 0.051 t 0.254 0.127 w 8.001 5 sot23-5 package information (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable ______________________________________________________________________________________ 15 8lumaxd.eps package outline, 8l umax/usop 1 1 21-0036 j rev. document control no. approval proprietary information title: max 0.043 0.006 0.014 0.120 0.120 0.198 0.026 0.007 0.037 0.0207 bsc 0.0256 bsc a2 a1 c e b a l front view side view e h 0.60.1 0.60.1 ? 0.500.1 1 top view d 8 a2 0.030 bottom view 1 6 s b l h e d e c 0 0.010 0.116 0.116 0.188 0.016 0.005 8 4x s inches - a1 a min 0.002 0.95 0.75 0.5250 bsc 0.25 0.36 2.95 3.05 2.95 3.05 4.78 0.41 0.65 bsc 5.03 0.66 6 0 0.13 0.18 max min millimeters - 1.10 0.05 0.15 dim soicn.eps package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)
max4214/max4215/max4217/max4219/MAX4222 high-speed, single-supply, gain of 2, closed-loop, rail-to-rail buffers with enable maxim cannot assume responsibility for use of any circuitry other than circuitry entirely embodied in a maxim product. no circu it patent licenses are implied. maxim reserves the right to change the circuitry and specifications without notice at any time. 16 ____________________maxim integrated products, 120 san gabriel drive, sunnyvale, ca 94086 408-737-7600 ? 2001 maxim integrated products printed usa is a registered trademark of maxim integrated products. qsop.eps package information (continued) (the package drawing(s) in this data sheet may not reflect the most current specifications. for the latest package outline info rmation, go to www.maxim-ic.com/packages .)

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