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bidirectional, zero drift, current sense amplifier data sheet ad8418a rev. c document feedback information furnished by analog devices is believed to be accurate and reliable. however, no responsibility is assumed by analog devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. specifications subject to change without notice. no license is granted by implication or otherwise under any patent or patent rights of analog devices. trademarks and registered trademarks are the property of their respective owners. one technology way, p.o. box 9106, norwood, ma 02062-9106, u.s.a. tel: 781.329.4700 ?2013C2018 analog devices, inc. all rights reserved. technical support www.analog.com features typical 0.1 v/c offset drift maximum 200 v voltage offset over full temperature range 2.7 v to 5.5 v power supply operating range electromagnetic interference (emi) filters included high common-mode input voltage range ?2 v to +70 v continuous ?4 v to +85 v survival minimum dc common-mode reje ction ratio (cmrr): 90 db initial gain = 20 v/v wide operating temperature range ad8418awb : ?40c to +125c ad8418awh : ?40c to +150c bidirectional operation available in 8-lead soic and 8-lead msop qualified for automotive applications applications high-side current sensing in motor controls solenoid controls power management low-side current sensing diagnostic protection general description the ad8418a is a high voltage, high resolution current shunt amplifier. it features an initial gain of 20 v/v, with a maximum 0.15% gain error over the entire temperature range. the buffered output voltage directly interfaces with any typical converter. the ad8418a offers excellent input common-mode rejection from ?2 v to +70 v. the ad8418a performs bidirectional current measurements across a shunt resistor in a variety of automotive and industrial applications, including motor control, power management, and solenoid control. the ad8418a offers breakthrough performance throughout the ?40c to +150c temperature range. it features a zero drift core, which leads to a typical offset drift of 0.1 v/c throughout the operating temperature range and the common-mode voltage range. the ad8418a is qualified for automotive applications. the device includes emi filters and patented circuitry to enable output accuracy with pulse-width modulation (pwm) type input common-mode voltages. the typical input offset voltage is 100 v. the ad8418a is offered in 8-lead msop and soic packages. table 1. related devices part no. description ad8205 current sense amplifier, gain = 50 ad8206 current sense amplifier, gain = 20 ad8207 high accuracy current sense amplifier, gain = 20 ad8210 high speed current sense amplifier, gain = 20 ad8417 high accuracy current sense amplifier, gain = 60 functional block diagram + i shunt g = 20 v cm = ?2v to +70v v s = 2.7v to 5.5v v ref 1 v ref 2 out 0v v s v s /2 v out i shunt emi filter emi filter v cm 0v 70v ad8418a v s +in ?in ? gnd ?50a 50a r shunt 11883-001 figure 1.
ad8418a data sheet rev. c | page 2 of 17 table of contents features .............................................................................................. 1 applications ....................................................................................... 1 general description ......................................................................... 1 functional block diagram .............................................................. 1 revision history ............................................................................... 2 specifications ..................................................................................... 3 absolute maximum ratings ............................................................ 4 esd caution .................................................................................. 4 pin configuration and function descriptions ............................. 5 typical performance characteristics ............................................. 6 theory of operation ...................................................................... 11 output offset adjustment ............................................................. 12 unidirectional operation .......................................................... 12 bidirectional operation ............................................................. 12 external referenced output ..................................................... 13 splitting the supply .................................................................... 13 splitting an external reference ................................................ 13 applications information .............................................................. 14 motor control ............................................................................. 14 solenoid control ........................................................................ 15 outline dimensions ....................................................................... 16 ordering guide .......................................................................... 17 a utomotive products ................................................................. 17 revision history 5 /2018 rev. b to rev. c c hanges to input bias current parameter, table 2 ...................... 3 changes to figure 20 ........................................................................ 8 4 /2017 rev. a to rev. b changes to features section and general description section ....... 1 changes to table 2 ............................................................................ 3 changes to table 3 ............................................................................ 4 change to figure 18 ......................................................................... 8 added figure 19 and figure 20; r enumbered sequentially ....... 8 1 2 / 20 14 rev. 0 to rev. a added ad8418awh ......................................................... universal changes to features section and general description section ........ 1 changes to specifications section and table 2 ............................. 3 changes to table 3 ............................................................................ 4 changes to ordering guide .......................................................... 16 1 1 / 20 13 revision 0 : initial version
data sheet ad8418a rev. c | page 3 of 17 specifications t a = ? 40c to +125c (operating temperature range) for the ad8418awb , t a = ? 40c to +150c for the ad8418awh , v s = 5 v, unless otherwis e noted. table 2 . parameter test conditions/comments min typ max unit gain initial 20 v/v error over temperature specified temperature range 0. 15 % gain vs. temperature ? 5 + 5 ppm/c voltage offset offset volt age, referred to the input , rti 25c 1 00 v over temperature , rti specified temperature range 2 00 v offset drift ? 0.4 +0.1 + 0.4 v/c input input bias current 130 a +in = ? in = 12 v, v ref 1 = v ref 2 = 2.5 v , ad8418awb 260 a input voltage range common mode, continuous ?2 +70 v common - mode rejection ratio (cmrr) specified temperature range, f = dc 90 100 db f = dc to 10 khz 86 db output output voltage range r l = 25 k? 0.0 32 v s ? 0.0 32 v output resistance 2 ? maximum capacitive load no continuous oscillation 0 500 pf dynamic response small signal ?3 db bandwidth 250 khz slew rate 1 v/s noise 0.1 hz to 10 hz (rti) 2.3 v p -p sp ectral density, 1 khz , rti 110 nv/ hz offset adjustment ratiometric accuracy 1 divider to supplies 0.49 8 5 0.50 1 5 v/v accuracy, referred to the output (rto) voltage applied to v ref 1 and v ref 2 in parallel 1 mv/v output offset adjustment range v s = 5 v 0.0 32 v s ? 0.0 32 v power supply operating range 2.7 5.5 v quiescent current over temper a ture v out = 0.1 v dc ad8418awb 4.1 ma ad8418awh 4.2 ma power supply rejection ratio 80 db t emperature range for specified performance operating temperature range ad8418awb ?40 +125 c ad8418awh ?40 +150 c 1 the offset adjustment is ratiometric to the power supply when v ref 1 and v ref 2 are used as a divider between the supplies.
ad8418a data sheet rev. c | page 4 of 17 absolute maximum ratings table 3. parameter rating supply voltage 6 v input voltage range continuous ?2 v to +70 v survival ?4 v to +85 v differential input survival 5.5 v reverse supply voltage 0.3 v esd human body model (hbm) 2000 v operating temperature range ad8418awb ?40c to +125c ad8418awh ?40c to +150c storage temperature range ?65c to +150c output short-circuit duration indefinite soic package ja thermal resistance 127.4c/w msop package ja thermal resistance 134.5c/w stresses at or above those listed under absolute maximum ratings may cause permanent damage to the product. this is a stress rating only; functional operation of the product at these or any other conditions above those indicated in the operational section of this specification is not implied. operation beyond the maximum operating conditions for extended periods may affect product reliability. esd caution
data sheet ad8418a rev. c | page 5 of 17 pin configuration and fu nction descriptions nc = no connect. do not connect to this pin. ?in 1 gnd 2 v ref 2 3 nc 4 +in 8 v ref 1 7 v s 6 out 5 ad8418a top view (not to scale) 11883-002 figure 2. pin configuration table 4. pin function descriptions pin no. mnemonic description 1 ?in negative input. 2 gnd ground. 3 v ref 2 reference input 2. 4 nc no connect. do not connect to this pin. 5 out output. 6 v s supply. 7 v ref 1 reference input 1. 8 +in positive input.
ad8418a data sheet rev. c | page 6 of 17 typical performance characteri s tics ? 40 ? 25 ? 10 5 20 35 50 65 80 95 1 10 125 offset vo lt age ( v) temper a ture (c) 1 1883-003 0 10 20 30 40 50 60 70 80 90 100 figure 3 . typical offset drift vs. temperature 50 60 70 80 90 100 1 10 10 100 1k 10k 100k 1m cmrr (db) frequenc y (hz) 1 1883-004 figure 4 . typical cmrr vs. frequency ?400 ?300 ?200 ?100 0 100 200 300 400 ?40 ?25 ?10 5 20 35 50 65 80 95 1 10 125 gain error (v/v) temper a ture (c) normalized a t 25c 1 1883-005 figure 5 . typical gain error vs. temperature ?60 ?50 ?40 ?30 ?20 ?10 0 10 20 30 40 1k 10k 100k 1m 10m gain (db) frequenc y (hz) 1 1883-006 figure 6 . typical small signal bandwidth (v out = 200 mv p - p) ?2 0 2 4 6 8 10 12 14 16 18 20 0 5 10 15 20 25 30 35 40 t o t a l output error (%) differentia l input vo lt age (mv) 1 1883-007 figure 7 . total output error vs. differential input voltage ?0.5 ?0.4 ?0.3 ?0.2 ?0.1 0 0.1 0.2 0.3 0.4 0.5 ?4 0 4 8 12 16 20 24 28 32 36 40 44 48 52 56 60 64 68 bias current per input pin (ma) +in ?in v cm (v) v s = 5v 1 1883-108 figure 8 . bias current per input pin vs. common - mode voltage (v cm )
data sheet ad8418a rev. c | page 7 of 17 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 ?5 0 5 10 15 20 25 30 35 40 45 50 55 60 65 70 supply current (ma) input common-mode voltage (v) v s = 5v v s = 2.7v 11883-009 figure 9. supply current vs. input common-mode voltage time (1s/div) input 25mv/div 500mv/div v s = 2.7v output 11883-010 figure 10. rise time (v s = 2.7 v) time (1s/div) input 50mv/div 1v/div v s = 5v output 11883-011 figure 11. rise time (v s = 5 v) time (1s/div) 25mv/div 500mv/div v s = 2.7v input output 11883-012 figure 12. fall time (v s = 2.7 v) time (1s/div) 50mv/div 1v/div v s = 5v output input 11883-013 figure 13. fall time (v s = 5 v) time (1s/div) output input 100mv/div 1v/div v s = 2.7v 11883-014 figure 14. differential overload recovery, rising (v s = 2.7 v)
ad8418a data sheet rev. c | page 8 of 17 time (1s/div) output input 200mv/div 2v/div v s = 5v 11883-015 figure 15. differential overload recovery, rising (v s = 5 v) time (1s/div) 100mv/div 1v/div v s = 2.7v output input 11883-016 figure 16. differential overload recovery, falling (v s = 2.7 v) time (1s/div) output input 200mv/div 2v/div v s = 5v 11883-017 figure 17. differential overload recovery, falling (v s = 5 v) time (2s/div) 11883-018 input common mode output 500mv/div 40v/div figure 18. input common-mode step response large scale (v s = 5 v, inputs shorted) time (2s/div) 11883-119 input common mode output 100mv/div 40v/div figure 19. input common-mode step response small scale (v s = 5 v, inputs shorted) time (4s/div) no load 330pf 470pf 1nf 100mv/div 100mv/div 100mv/div 100mv/div 11883-120 figure 20. small signal response for various capacitive loads
data sheet ad8418a rev. c | page 9 of 17 ?40 ?25 ?10 5 20 35 50 65 80 95 1 10 125 temper a ture (c) 0 5 10 15 20 25 30 35 40 45 maximum output sink current (ma) 2.7v 5v 1 1883-019 figure 21 . maximum output sink current vs. temperature ?40 ?25 ?10 5 20 35 50 65 80 95 1 10 125 temper a ture (c) 0 5 10 15 20 25 30 35 40 maximum output source current (ma) 5v 1 1883-020 2.7v figure 22 . maximum output source current vs. temperature ?500 ?450 ?400 ?350 ?300 ?250 ?200 ?150 ?100 ?50 0 0 1 2 3 4 5 6 7 8 9 10 output vo lt age range from positive rai l (mv) output source current (ma) 1 1883-021 figure 23 . output voltage range from positive rail vs. output source current 0 50 100 150 200 250 300 0 1 2 3 4 5 6 7 8 9 10 output sink current (ma) 1 1883-022 output vo lt age range from ground (mv) figure 24 . output voltage range from ground vs. output sink current
ad8418a data sheet rev. c | page 10 of 17 ? 400 ? 300 ? 200 ? 100 0 100 200 300 400 0 200 400 600 800 1000 1200 1400 1600 v os (v) hits ?40c +25c +125c 1 1883-325 v s = 5.0v figure 25 . offset voltage distribution ?40 ?25 ?10 5 20 35 50 65 80 95 1 10 125 temper a ture (c) ?0.5 ?0.4 ?0.3 ?0.2 ?0.1 0 0.1 0.2 0.3 0.4 0.5 cmrr (v/v) normalized a t 25c 1 1883-024 figure 26 . cmrr vs. temperature ?3 ?2 ?1 0 1 0 300 600 900 1200 1500 1800 gain error drift (ppm / c) hits 1 1883-023 figure 27 . gain error drift distribution
data sheet ad8418a rev. c | page 11 of 17 theory of operation the ad8418a is a single-supply, zero drift, difference amplifier that uses a unique architecture to accurately amplify small differential current shunt voltages in the presence of rapidly changing common-mode voltages. in typical applications, the ad8418a measures current by amplifying the voltage across a shunt resistor connected to its inputs by a gain of 20 v/v (see figure 28). the ad8418a design provides excellent common-mode rejection, even with pwm common-mode inputs that can change at very fast rates, for example, 1 v/ns. the ad8418a contains proprietary technology to eliminate the negative effects of such fast changing external common-mode variations. the ad8418a features an input offset drift of less than 400 nv/c. this performance is achieved through a novel zero drift architecture that does not compromise bandwidth, which is typically rated at 250 khz. the reference inputs, v ref 1 and v ref 2, are tied through 100 k resistors to the positive input of the main amplifier, which allows the output offset to be adjusted anywhere in the output operating range. the gain is 1 v/v from the reference pins to the output when the reference pins are used in parallel. when the pins are used to divide the supply, the gain is 0.5 v/v. the ad8418a offers breakthrough performance without compromising any of the robust application needs typical of solenoid or motor control. the ability to reject pwm input common-mode voltages and the zero drift architecture providing low offset and offset drift allows the ad8418a to deliver total accuracy for these demanding applications. + i shunt g = 20 v cm = ?2v to +70v v s = 2.7v to 5.5v v ref 1 v ref 2 out 0v v s v s /2 v out i shunt emi filter emi filter v cm 0v 70v ad8418a v s +in ?in ? gnd ?50a 50a r shunt 11883-225 figure 28. typical application
ad8418a data sheet rev. c | page 12 of 17 output offset adjust ment the output of the ad8418a can be adjusted for unidirectional or bidire ctional operation. unidirectional opera tion unidirectional operation allows the ad8418a to measure cu r rents through a resistive shunt in one direction. the basic modes for unidirectional operati on are ground referenced ou t put mode and v s referenced output mode. for unidirectional operation, the output can be set at the negative rail (near ground) or at the positive rail (near v s ) when the differential input is 0 v. the output moves to the opposit e rail when a correct polarity differential input voltage is applied. the r e quired polarity of the differential input depends on the output voltage setting. if the output is set at the positive rail, the input po larity needs to be negative to decrease the output. if the output is set at ground, the polarity must be positive to increase the ou t put. ground referenced output mode when using the ad8418a in ground referenced output mode, both referenc ed inputs are tied to ground, which causes the output to sit at the negative rail when there are zero differential volts at the input (see figure 29 ). ? + r1 out gnd v s v ref 1 v ref 2 ad8418a r2 r3 r4 ?in +in 1 1883-025 figure 29 . ground referenced output v s re ferenced output mode v s referenced output mode is set when both reference pins are tied to the positive supply. it is typically used when the diagnostic scheme r e quires detection of the amplifier and the wiring before power is applied to the load (see figure 30). ? + r1 out gnd v s v ref 1 v ref 2 ad8418a r2 r3 r4 ?in +in 1 1883-026 figure 30 . v s referenced output bidirectional operat ion bidirectional operation allows the ad8418a to measure currents through a resis tive shunt in two directions. in this case, the output is set anywhere within the output range. typically, it is set at half - scale for equal range in both directions. in some cases, however, it is s et at a voltage other than half - scale when the bidirection al current is nonsymmetrical. adjusting the output is accomplished by applying voltage(s) to the referenced inputs. v ref 1 and v ref 2 are tied to internal resistors that connect to an internal offset node. there is no operational difference between the pins.
data sheet ad8418a rev. c | page 13 of 17 external referenced output tying v ref 1 and v ref 2 together and to a reference produces an output equal to the reference voltage when there is no differential input (see figure 31) . the output decre ases the reference vol t age when the input is negative, relat ive to the ?in pin, and increases the voltage when the input is positive, relative to the ? in pin. ? + r1 out gnd v s v ref 1 v ref 2 ad8418a r2 r3 r4 ?in +in 2.5v 1 1883-027 figure 31 . external referenced output splitting the supply by tying one reference pin t o v s and the other to the ground pin, the output is set at half of the supply when there is no di f ferential input (see figure 32 ). the benefit of this configuration is that an external reference is not required to offset the output for bidirectional curren t measurement. tying one reference pin to v s and the other to the ground pin creates a midscale offset that is rat i ometric to the supply, which means that if the supply increases or decreases , the output remains at half the supply. for exa m ple, if the supp ly is 5.0 v, the output is at half scale or 2.5 v. if the su p ply increases by 10% (to 5.5 v), the output i ncreases to 2.75 v. ? + r1 out gnd v s v ref 1 v ref 2 ad8418a r2 r3 r4 ?in +in 1 1883-028 figure 32 . split supply splitting an externa l reference use t he internal reference resistors to divide an external reference by 2 with an a c curacy of approximately 0.5%. split an external reference by connecting one v ref x pin to ground and the other v ref x pin to the reference (see figure 33). ? + r1 out gnd v s v ref 1 v ref 2 ad8418a r2 r3 r4 ?in +in 5v 1 1883-029 figure 33 . split external reference
ad8418a data sheet rev. c | page 14 of 17 applications information motor control 3-phase motor control the ad8418a is ideally suited for monitoring current in 3-phase motor applications. the 250 khz typical bandwidth of the ad8418a provides instantaneous current monitoring. additionally, the typical low offset drift of 0.1 v/c means that the measurement error between the two motor phases is at a minimum over temperature. the ad8418a rejects pwm input common-mode voltages in the ?2 v to +70 v (with a 5 v supply) range. monitoring the current on the motor phase allows sampling of the current at any point and provides diagnostic information, such as a short to gnd and battery. refer to figure 35 for the typical phase current measurement setup with the ad8418a . h-bridge motor control another typical application for the ad8418a is to form part of the control loop in h-bridge motor control. in this case, place the shunt resistor in the middle of the h-bridge to accurately measure current in both directions by using the shunt available at the motor (see figure 34). using an amplifier and shunt in this location is a better solution than a ground referenced op amp because ground is not typically a stable reference voltage in this type of application. the instability of the ground reference causes inaccuracies in the measurements that can be made with a simple ground referenced op amp. the ad8418a measures current in both directions as the h-bridge switches and the motor changes direction. the output of the ad8418a is configured in an external referenced bidirectional mode (see the bidirectional operation section). ad8418a +in shunt motor v ref 1 v s out ?in gnd 5v controller v ref 2nc 5v 2.5v 11883-030 figure 34. h-bridge motor control ad8418a bidirectional current measurement rejection of high pwm common-mode voltage (?2v to +70v) amplification high output drive ad8214 interface circuit v+ i u i v i w v? optional device for overcurrent protection and fast (direct) shutdown of power stage ad8418a controller 5v 5v m 11883-031 figure 35. 3-phase motor control
data sheet ad8418a rev. c | page 15 of 17 solenoid control high-side current sense with a low-side switch in the case of a high-side current sense with a low-side switch, the pwm control switch is ground referenced. tie an inductive load (solenoid) to a power supply and place a resistive shunt between the switch and the load (see figure 36). an advantage of placing the shunt on the high side is that the entire current, including the recirculation current, is measurable because the shunt remains in the loop when the switch is off. in addition, diagnostics are enhanced because shorts to ground are detected with the shunt on the high side. in this circuit configuration, when the switch is closed, the common-mode voltage decreases to near the negative rail. when the switch is open, the voltage reversal across the inductive load causes the common-mode voltage to be held one diode drop above the battery by the clamp diode. ?in 1 gnd 2 v ref 2 3 nc 4 +in 8 v ref 1 7 v s 6 out output 5 v inductive load clamp diode battery switch shunt nc = no connect. + ? 5 ad8418a 11883-032 figure 36. low-side switch high-side current sense with a high-side switch the high-side current sense with a high-side switch configuration minimizes the possibility of unexpected solenoid activation and excessive corrosion (see figure 37). in this case, both the switch and the shunt are on the high side. when the switch is off, the battery is removed from the load, which prevents damage from potential shorts to ground while still allowing the recirculating current to be measured and to provide diagnostics. removing the power supply from the load for the majority of the time that the switch is open minimizes the corrosive effects that can be caused by the differential voltage between the load and ground. when using a high-side switch, the battery voltage is connected to the load when the switch is closed, causing the common-mode voltage to increase to the battery voltage. in this case, when the switch is open, the voltage reversal across the inductive load causes the common-mode voltage to be held one diode drop below ground by the clamp diode. ?in 1 gnd 2 v ref 2 3 nc 4 +in 8 v ref 1 7 v s 6 out output 5 v inductive load shunt clamp diode battery switch nc = no connect. + ? 5 ad8418a 11883-033 figure 37. high-side switch high rail current sensing in the high rail, current sensing configuration, the shunt resistor is referenced to the battery. high voltage is present at the inputs of the current sense amplifier. when the shunt is battery referenced, the ad8418a produces a linear ground referenced analog output. additionally, the ad8214 provides an overcurrent detection signal in as little as 100 ns (see figure 38). this feature is useful in high current systems where fast shutdown in overcurrent conditions is essential. v s 1 +in 2 v reg 3 nc 4 ?in 8 nc 7 gnd 6 out output overcurrent detection (<100ns) 5v shunt inductive load switch clamp diode battery + ? 5 ad8214 nc = no connect. ?in 1 gnd 2 v ref 2 3 nc 4 +in 8 v ref 1 7 v s 6 out 5 ad8418a top view (not to scale) 11883-034 figure 38. high rail current sensing
ad8418a data sheet rev. c | page 16 of 17 outline dimensions c o n t r o l l i n g d i m e n s i o n s a r e i n m i l l i m e t e r s ; i n c h d i m e n s i o n s ( i n p a r e n t h e s e s ) a r e r o u n d e d - o f f m i l l i m e t e r e q u i v a l e n t s f o r r e f e r e n c e o n l y a n d a r e n o t a p p r o p r i a t e f o r u s e i n d e s i g n . c o m p l i a n t t o j e d e c s t a n d a r d s m s - 0 1 2 - a a 0 1 2 4 0 7 - a 0 . 2 5 ( 0 . 0 0 9 8 ) 0 . 1 7 ( 0 . 0 0 6 7 ) 1 . 2 7 ( 0 . 0 5 0 0 ) 0 . 4 0 ( 0 . 0 1 5 7 ) 0 . 5 0 ( 0 . 0 1 9 6 ) 0 . 2 5 ( 0 . 0 0 9 9 ) 4 5 8 0 1 . 7 5 ( 0 . 0 6 8 8 ) 1 . 3 5 ( 0 . 0 5 3 2 ) s e a t i n g p l a n e 0 . 2 5 ( 0 . 0 0 9 8 ) 0 . 1 0 ( 0 . 0 0 4 0 ) 4 1 8 5 5 . 0 0 ( 0 . 1 9 6 8 ) 4 . 8 0 ( 0 . 1 8 9 0 ) 4 . 0 0 ( 0 . 1 5 7 4 ) 3 . 8 0 ( 0 . 1 4 9 7 ) 1 . 2 7 ( 0 . 0 5 0 0 ) b s c 6 . 2 0 ( 0 . 2 4 4 1 ) 5 . 8 0 ( 0 . 2 2 8 4 ) 0 . 5 1 ( 0 . 0 2 0 1 ) 0 . 3 1 ( 0 . 0 1 2 2 ) c o p l a n a r i t y 0 . 1 0 figure 39 . 8 - lead standard small outline package [soic_n] narrow body (r - 8) dimensions shown in millimeters and (inches) compliant to jedec standards mo-187-aa 6 0 0.80 0.55 0.40 4 8 1 5 0.65 bsc 0.40 0.25 1.10 max 3.20 3.00 2.80 coplanarity 0.10 0.23 0.09 3.20 3.00 2.80 5.15 4.90 4.65 pin 1 identifier 15 max 0.95 0.85 0.75 0.15 0.05 10-07-2009-b figure 40 . 8 - lead mini small outline package [msop] (rm - 8) dimensions shown in millimeters
data sheet ad8418a rev. c | page 17 of 17 ordering guide model 1 , 2 temperature range package description package option marking code AD8418ABRMZ ? 40c to +125c 8 - lead msop rm - 8 y5j AD8418ABRMZ - rl ? 40c to +125c 8 - lead msop, 13 tape and reel rm - 8 y5 j ad8418awbrmz ? 40c to +125c 8 - lead msop rm - 8 y5g ad8418awbrmz -rl ? 40c to +125c 8 - lead msop, 13 tape and reel rm - 8 y5g ad8418awbrz ? 40c to +125c 8 - lead soic_n r -8 ad8418awbrz -rl ? 40c to +125c 8 - lead soic_n, 13 tape and reel r -8 ad8418awhrz ? 40c to +150c 8 - lead soic_n r -8 ad8418awhrz -rl ? 40c to +150c 8 - lead soic_n, 13 tape and reel r -8 ad8418awhrmz ? 40c to +150c 8 - lead msop rm - 8 y5h ad8418awhrmz - rl ? 40c to +150c 8 - lead msop, 13 tape and reel rm - 8 y5h ad8418ar - evalz 8 - lead so ic_n evaluation board ad8418arm - evalz 8 - lead msop evaluation board 1 z = rohs compliant part . 2 w = qualified for automotive applications. automotive products the ad8418aw models are available with controlled manufacturing to support the quality and reliab ility requirements of automotive applications. note that these automotive models may have specifications that differ from the commercial models; therefore, de signers should review the specifications section of this data sheet care fully. only the automotive grade products shown are available for use in automotive applications. contact your local analog devices account representative for specific product ordering information a nd to obtain the specific automotive reliability reports f or these models. ? 2013 C 2018 analog devices, inc. all rights reserved. trademarks and registered trademarks are the property of their respective owners. d11883 - 0 - 5/18(c)

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