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LME49722 www.ti.com snas454a ? march 2008 ? revised april 2013 LME49722 low noise, high performance, high fidelity dual audio operational amplifier check for samples: LME49722 1 features description the LME49722 is part of the ultra-low distortion, low 2 ? easily drives 600 ? loads noise, high slew rate operational amplifier series ? optimized for superior audio signal fidelity optimized and fully specified for high performance, ? output short circuit protection high fidelity applications. combining advanced leading-edge process technology with state-of-the-art ? psrr and cmrr exceed 120db (typ) circuit design, the LME49722 audio operational amplifiers deliver superior audio signal amplification applications for outstanding audio performance. the LME49722 ? ultra high quality audio amplification combines extremely low voltage noise density (1.9nv/ hz) rate with vanishingly low thd+n ? high fidelity preamplifiers, phono preamps, (0.00002%) to easily satisfy the most demanding and multimedia audio applications. to ensure that the most ? high performance professional audio challenging loads are driven without compromise, the ? high fidelity equalization and crossover LME49722 has a high slew rate of 22v/ s and an networks with active filters output current capability of 28ma. further, dynamic range is maximized by an output stage that drives ? high performance line drivers and receivers 2k ? loads to within 1v of either power supply voltage. ? low noise industrial applications including the LME49722 has a wide supply range of 2.5v to test, measurement, and ultrasound 18v. over this supply range the LME49722 maintains excellent common-mode and power supply rejection, and low input bias current. this audio operational amplifier achieves outstanding ac performance while driving complex loads with values as high as 100pf with gain value greater than 2. directly interchangeable with lme49720, lm4562 and lme49860 for similar operating voltages. table 1. key specifications value unit 2.5v to wide operating voltage range v 18 nv/ hz equivalent noise (frequency = 1khz) 1.9 (typ) nv/ hz equivalent noise (frequency = 10hz) 2.8 (typ) psrr 120 db (typ) slew rate 22 v/ s (typ) r l = 2k ? 0.00002 % (typ) thd+n (a v = 1, v out = 3v rms , f in = 1khz) r l = 600 ? 0.00002 % (typ) open loop gain (r l = 600 ? ) 135 db (typ) input bias current 50 na (typ) voltage offset 0.02 mv (typ) 1 please be aware that an important notice concerning availability, standard warranty, and use in critical applications of texas instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. 2 all trademarks are the property of their respective owners. production data information is current as of publication date. copyright ? 2008 ? 2013, texas instruments incorporated products conform to specifications per the terms of the texas instruments standard warranty. production processing does not necessarily include testing of all parameters.
LME49722 snas454a ? march 2008 ? revised april 2013 www.ti.com typical application figure 1. wide bandwidth low noise low drift amplifier connection diagram figure 2. 8-lead soic see d package 2 submit documentation feedback copyright ? 2008 ? 2013, texas instruments incorporated product folder links: LME49722 b - + a - + 7 output b 8 v + 6 inverting input b 5 non-inverting input b non-inverting input a 3 v - 4 inverting input a 2 output a 1 + - c1 r1 c2 r2 LME49722 f max = > 300 khz for v p-p = 20v, r2 c2 | r1 c1 v p-p
LME49722 www.ti.com snas454a ? march 2008 ? revised april 2013 these devices have limited built-in esd protection. the leads should be shorted together or the device placed in conductive foam during storage or handling to prevent electrostatic damage to the mos gates. absolute maximum ratings (1) (2) (3) supply voltage (v s = v cc -v ee ) 38v storage temperature ? 65 c to 150 c input voltage (v-) - 0.7v to (v+) + 0.7v output short circuit (4) continuous esd susceptibility (5) 2000v esd susceptibility (6) 200v junction temperature (t jmax ) 150 c thermal resistance ja 154 c/w jc 27 c/w (1) ? absolute maximum ratings ? indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. functional operation of the device and/or non-degradation at the absolute maximum ratings or other conditions beyond those indicated in the recommended operating conditions is not implied. the recommended operating conditions indicate conditions at which the device is functional and the device should not be operated beyond such conditions. all voltages are measured with respect to the ground pin, unless otherwise specified. (2) the electrical characteristics tables list specifications under the listed recommended operating conditions except as otherwise modified or specified by the electrical characteristics conditions and/or notes. typical specifications are estimations only and are not ensured. (3) if military/aerospace specified devices are required, please contact the texas instruments sales office/ distributors for availability and specifications. (4) the maximum power dissipation must be derated at elevated temperatures and is dictated by t jmax , ja , and the ambient temperature, t a . the maximum allowable power dissipation is p dmax = (t jmax - t a ) / ja or the number given in absolute maximum ratings , whichever is lower. for the LME49722, t jmax = 150 c and the typical jc is 27 c/w. (5) human body model, applicable std. jesd22-a114c. (6) machine model, applicable std. jesd22-a115-a. operating ratings temperature range t min t a t max ? 40 c t a 85 c supply voltage range 2.5v v s 18v copyright ? 2008 ? 2013, texas instruments incorporated submit documentation feedback 3 product folder links: LME49722
LME49722 snas454a ? march 2008 ? revised april 2013 www.ti.com electrical characteristics for the LME49722 (1) (2) the following specifications apply for v s = 15v and 18v, r l = 2k ? , f in = 1khz unless otherwise specified. limits apply for t a = 25 c, LME49722 units symbol parameter conditions (limits) typical (3) limit (4) a v = 1, v out = 3v rms thd+n total harmonic distortion + noise r l = 2k ? 0.00002 % r l = 600 ? 0.00002 0.00009 % (max) a v = 1, v out = 3v rms imd intermodulation distortion 0.00002 % two-tone, 60hz & 7khz 4:1 gbwp gain bandwidth product f in = 100khz 55 45 mhz (min) sr slew rate a v = 1, v out = 10v p-p 22 15 v/ s (min) v out = 1v p-p , ? 3db fpbw full power bandwidth referenced to output magnitude 12 mhz at f = 1khz a v = ? 1, 10v step, c l = 100pf t s settling time 1.2 s 0.1% error range e inv equivalent input voltage noise f bw = 20hz to 20khz 0.25 0.35 v rms (max) f= 1khz v s = 15v 1.9 nv hz v s = 18v 1.9 2.5 nv hz (max) e n equivalent input voltage density f = 10hz v s = 15v 2.8 nv hz v s = 18v 3.2 nv hz f = 1khz 2.6 pa / hz i n current noise density f = 10hz 6 pa / hz v os offset voltage v cm = 0v 0.02 0.7 mv (max) psrr power supply rejection ratio v s = 20v (5) 120 110 db (min) f in = 1khz 136 db iso ch-ch channel-to-channel isolation f in = 20khz 135 db v cm = 0v i b input bias current v s = 15v 50 na v s = 18v 53 200 na (max) i os / te input bias current drift vs ? 40 c t a 85 c 0.1 na/ c mp temperature v cm = 0v i os input offset current v s = 15v 25 na v s = 18v 32 100 na (max) +14.0 (v cc) ? 2.0 v (min) v s = 15v ? 13.9 (v ee ) + 2.0 v (min) v in-cm common-mode input voltage range +17.0 (v cc ) ? 2.0 v (min) v s = 18v ? 16.9 (v ee ) + 2.0 v (min) cmrr common-mode rejection ? 10v v cm 10v 128 110 db (min) z in differential input impedance 30 k ? z cm common mode input impedance ? 10v v cm 10v 1000 m ? ? 12v v out 12v, r l = 600 ? 135 120 db a vol open loop voltage gain ? 12v v out 12v, r l = 2k ? 140 db ? 12v v out 12v, r l = 10k ? 140 db (1) ? absolute maximum ratings ? indicate limits beyond which damage to the device may occur, including inoperability and degradation of device reliability and/or performance. functional operation of the device and/or non-degradation at the absolute maximum ratings or other conditions beyond those indicated in the recommended operating conditions is not implied. the recommended operating conditions indicate conditions at which the device is functional and the device should not be operated beyond such conditions. all voltages are measured with respect to the ground pin, unless otherwise specified. (2) the electrical characteristics tables list specifications under the listed recommended operating conditions except as otherwise modified or specified by the electrical characteristics conditions and/or notes. typical specifications are estimations only and are not ensured. (3) typical values represent most likely parametric norms at t a = +25 c, and at the recommended operation conditions at the time of product characterization and are not ensured. (4) datasheet min/max specification limits are specified by test or statistical analysis. (5) psrr is measured as follow: v os is measured at two supply voltages, 5v and 15v. psrr = | 20log( v os / v s ) |. 4 submit documentation feedback copyright ? 2008 ? 2013, texas instruments incorporated product folder links: LME49722
LME49722 www.ti.com snas454a ? march 2008 ? revised april 2013 electrical characteristics for the LME49722 (1) (2) (continued) the following specifications apply for v s = 15v and 18v, r l = 2k ? , f in = 1khz unless otherwise specified. limits apply for t a = 25 c, LME49722 units symbol parameter conditions (limits) typical (3) limit (4) v s = 15v r l = 600 ? +13.7/ ? 14 v peak r l = 2k ? 14.0 v peak r l = 10k ? 14.1 v peak v om output voltage swing v s = 18v r l = 600 ? +16.6/ ? 16.8 v peak (min) 15.5 r l = 2k ? 17.0 v peak r l = 10k ? 17.1 v peak r l = 600 ? i out output current v s = 15v 23 ma v s = 18v 27.6/ ? 28 23 ma (min) +43 ma i out-cc short circuit current sink to source ? 40 ma f in = 10khz z out output impedance closed-loop 0.01 ? open-loop 13 ? i out = 0ma total quiescent power supply i s v s = 15v 12.1 ma current v s = 18v 12.3 16 ma (max) copyright ? 2008 ? 2013, texas instruments incorporated submit documentation feedback 5 product folder links: LME49722
LME49722 snas454a ? march 2008 ? revised april 2013 www.ti.com typical performance characteristics thd+n thd+n vs vs output voltage output voltage +v cc = ? v ee = 15v, f in = 1khz, r l = 2k ? +v cc = ? v ee = 15v, f in = 1khz, r l = 600 ? figure 3. figure 4. thd+n thd+n vs vs output voltage output voltage +v cc = ? v ee = 18v, f in = 1khz, r l = 2k ? +v cc = ? v ee = 18v, f in = 1khz, r l = 600 ? figure 5. figure 6. thd+n thd+n vs vs frequency frequency +v cc = ? v ee = 15v, v o = 3v rms , r l = 2k ? +v cc = ? v ee = 15v, v o = 3v rms , r l = 600 ? figure 7. figure 8. 6 submit documentation feedback copyright ? 2008 ? 2013, texas instruments incorporated product folder links: LME49722 20 200 2k 20k thd + n (%) 100 50 500 1k 5k 10k frequency (hz) 0.00002 0.00005 0.0002 0.0005 0.00001 0.0001 0.001 20 200 2k 20k thd + n (%) 100 50 500 1k 5k 10k frequency (hz) 0.00002 0.00005 0.0002 0.0005 0.00001 0.0001 0.001 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms thd + n (%) 10m 100m 1 10 20 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms thd + n (%) 10m 100m 1 10 20 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms thd + n (%) 10m 100m 1 10 20 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms thd + n (%) 10m 100m 1 10 20
LME49722 www.ti.com snas454a ? march 2008 ? revised april 2013 typical performance characteristics (continued) thd+n thd+n vs vs frequency frequency +v cc = ? v ee = 18v, v o = 3v rms , r l = 2k ? +v cc = ? v ee = 18v, v o = 3v rms , r l = 600 ? figure 9. figure 10. imd imd vs vs frequency frequency +v cc = ? v ee = 15v, r l = 2k ? +v cc = ? v ee = 15v, r l = 600 ? figure 11. figure 12. imd imd vs vs frequency frequency +v cc = ? v ee = 18v, r l = 2k ? +v cc = ? v ee = 18v, r l = 600 ? figure 13. figure 14. copyright ? 2008 ? 2013, texas instruments incorporated submit documentation feedback 7 product folder links: LME49722 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rm s imd (%) 100m 500m 1 10 20 5 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms imd (%) 100m 500m 1 10 20 5 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms imd (%) 100m 500m 1 10 20 5 20 200 2k 20k thd + n (%) 100 50 500 1k 5k 10k frequency (hz) 0.00002 0.00005 0.0002 0.0005 0.00001 0.0001 0.001 20 200 2k 20k thd + n (%) 100 50 500 1k 5k 10k frequency (hz) 0.00002 0.00005 0.0002 0.0005 0.00001 0.0001 0.001 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms imd (%) 100m 500m 1 10 20 5
LME49722 snas454a ? march 2008 ? revised april 2013 www.ti.com typical performance characteristics (continued) imd imd vs vs frequency frequency +v cc = ? v ee = 2.5v, r l = 2k ? +v cc = ? v ee = 2.5v, r l = 600 ? figure 15. figure 16. voltage noise density voltage noise density vs vs frequency frequency +v cc = ? v ee = 15v +v cc = ? v ee = 18v figure 17. figure 18. current noise density current noise density vs vs frequency frequency +v cc = ? v ee = 15v +v cc = ? v ee = 18v figure 19. figure 20. 8 submit documentation feedback copyright ? 2008 ? 2013, texas instruments incorporated product folder links: LME49722 10 1 100 frequency (hz) current noise ( pa / ? hz ) 1 10 100 100k 1k 10k v s = 30v v cm = 15v 2.4 pa/ ? hz 10 1 100 frequency (hz) current noise ( pa / ? hz ) 1 10 100 100k 1k 10k v s = 36v v cm = 18v 2.4 pa/ ? hz 10 1 100 frequency (hz) voltage noise ( nv / ? hz ) 1 10 100 100k 1k 10k 1.80 nv/ ? hz v s = 30v v cm = 15v 10 1 100 frequency (hz) voltage noise ( nv / ? hz ) 1 10 100 100k 1k 10k v s = 36v v cm = 18v 1.84 nv/ ? hz 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms imd (%) 100m 500m 2 1 0.00002 0.00005 0.0002 0.0005 0.002 0.005 0.00001 0.0001 0.001 0.01 v rms imd (%) 100m 500m 2 1
LME49722 www.ti.com snas454a ? march 2008 ? revised april 2013 typical performance characteristics (continued) psrr+ psrr- vs vs frequency frequency +v cc = ? v ee = 15v, v ripple = 200mv pp , r l = 2k ? +v cc = ? v ee = 15v, v ripple = 200mv pp , r l = 2k ? figure 21. figure 22. crosstalk cmrr vs vs frequency frequency +v cc = ? v ee = 15v, r l = 2k ? , v out = 3v rms +v cc = ? v ee = 15v, r l = 2k ? figure 23. figure 24. output voltage output voltage vs vs supply voltage supply voltage thd+n = 1%, r l = 2k ? thd+n = 1%, r l = 600 ? figure 25. figure 26. copyright ? 2008 ? 2013, texas instruments incorporated submit documentation feedback 9 product folder links: LME49722 supply voltage (v) output voltage ( v rms ) 0 2 4 6 8 10 12 14 0 2 4 6 8 10 12 14 16 18 20 supply voltage (v) output voltage ( v rms ) 0 2 4 6 8 10 12 14 16 18 20 0 2 4 6 8 10 12 frequency (hz) -50 -150 -100 0 crosstalk ( db ) 20 100 10k 100k 1k frequency (hz) -50 -150 -100 0 cmrr ( db ) 20 100 10k 100k 1k 20 100 1k 10k 20k -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 psrr (db) frequency (hz) 20 100 1k 10k 20k -140 -130 -120 -110 -100 -90 -80 -70 -60 -50 -40 psrr ( db ) frequency (hz)
LME49722 snas454a ? march 2008 ? revised april 2013 www.ti.com typical performance characteristics (continued) supply current full power bandwidth vs vs supply voltage frequency r l = 2k ? +v cc = ? v ee = 15v, r l = 2k ? figure 27. figure 28. gain phase vs frequency +v cc = ? v ee = 15v figure 29. 10 submit documentation feedback copyright ? 2008 ? 2013, texas instruments incorporated product folder links: LME49722 frequency (hz) 10 100 10k 100m 1k 100k 1m 10m 40 120 180 -20 60 gain ( db ) 80 160 140 100 20 0 40 120 180 -20 60 phase lag ( q ) 80 160 140 20 0 100 supply voltage (v) supply current ( ma ) 0 2 4 6 8 10 12 14 16 18 20 10.0 10.5 11.0 11.5 12.0 12.5 13.0 frequency (hz) magnitude ( db ) 100 10k 100m 1k 10 100k 1m 10m 1 -50 -40 -30 -20 -10 0 0 db = 1v pp
LME49722 www.ti.com snas454a ? march 2008 ? revised april 2013 application information application hints the LME49722 is a high speed operational amplifier which can operate stably in most of the applications. for the application with gain greater than 2, capacitive loads up to 100pf will cause little change in the phase characteristics of the amplifiers and are therefore allowable. capacitive loads greater than 10pf must be isolated from the output, if the gain value is less than 2. the most straightforward way to do this is to put a resistor (its value 20 ? ) in series with the output. the resistor will also prevent unnecessary power dissipation if the output is accidentally shorted. figure 30. low impedance microphone pre-amplifier figure 31. three-band active tone control copyright ? 2008 ? 2013, texas instruments incorporated submit documentation feedback 11 product folder links: LME49722 output + - ? LME49722 10 k : + - ? LME49722 11 k : 11 k : 11 k : 100 k : 100 k : 500 k : 3.6 k : 3.6 k : 1.8 k : 1.8 k : 0.05 p f 0.005 p f 0.022 p f 0.005 p f 10 p f input + - output c1 4.7 p f r3 150 k : ? LME49722 r6 10 k : r7 100 : x total voltage noise density: e n_total 2 | e n 2 + e n_r1 2 + e n_r2 2 = 1.9 2 + 2 (2.7 2 ), then e n_total = 4.3 nv/ ? hz. for e n_r1 = e n_r2 | 2.7 nv/ ? hz, if r1 = r2 | 470 : x or total voltage noise = 0.13 p v input referred in a 1 khz noise bandwidth. low impedance microphone r1 470 : r2 470 : r4 150 k :
LME49722 snas454a ? march 2008 ? revised april 2013 www.ti.com revision history rev date description 1.0 03/27/08 initial release. a 04/04/13 changed layout of national data sheet to ti format. 12 submit documentation feedback copyright ? 2008 ? 2013, texas instruments incorporated product folder links: LME49722
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