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this is information on a product in full production. january 2014 docid2471 rev 15 1/24 lm2904, LM2904A low-power dual operational amplifier datasheet - production data features ? internally frequency-compensated ? large dc voltage gain: 100 db ? wide bandwidth (unity gain): 1.1 mhz (temperature compensated) ? very low supply current/amplifier, essentially independent of supply voltage ? low input bias current: 20 na (temperature compensated) ? low input offset current: 2 na ? input common-mode voltage range includes negative rail ? differential input voltage range equal to the power supply voltage ? large output voltage swing 0 v to (v cc+ -1.5 v) related products: ? see lm2904w for enhanced esd performances description this circuit consists of two independent, high gain, internally frequency-compensated operational amplifiers designed specifically for automotive and industrial control systems. it operates from a single power supply over a wide range of voltages. the low power supply drain is independent of the magnitude of the power supply voltage. application areas include transducer amplifiers, dc gain blocks and all the conventional op-amp circuits which can now be more easily implemented in single power supply systems. for example, these circuits can be directly supplied from the standard +5 v which is used in logic systems and easily provides the required interface electronics without requiring any additional power supply. in the linear mode, the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from a single power supply. d p s miniso-8 q2 dfn8 2 x 2 mm (plastic micropackage) so-8 (plastic micropackage) tssop8 (thin shrink small outline package) www.st.com
contents lm2904, LM2904A 2/24 docid2471 rev 15 contents 1 schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 2 package pin connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4 3 absolute maximum ratings and operating conditions . . . . . . . . . . . . . 5 4 electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7 4.1 typical single-supply applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12 5 macromodel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14 6 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15 6.1 so-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16 6.2 dfn8 2 x 2 mm package mechanical data . . . . . . . . . . . . . . . . . . . . . . . 17 6.3 tssop8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19 6.4 miniso-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20 7 ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21 8 revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22
docid2471 rev 15 3/24 lm2904, LM2904A schematic diagram 24 1 schematic diagram figure 1. schematic diagram (1/2 lm2904) 6 m a 4 m a 100 m a q2 q3 q4 q1 inverting input non-inverting input q8 q9 q10 q11 q12 50 ma q13 output q7 q6 q5 r sc v cc c c gnd
package pin connections lm2904, LM2904A 4/24 docid2471 rev 15 2 package pin connections figure 2. dfn8 pin connections (top view) 1. the exposed pad of the dfn8 2x2 can be connected to vcc- or left floating. figure 3. miniso8, tssop8 and so8 package pin connections (top view) 9&& 9&& 287 ,1 ,1 287 ,1 ,1 1& 9&& 9&& 287 ,1 ,1 287 ,1 ,1
docid2471 rev 15 5/24 lm2904, LM2904A absolute maximum ratings and operating conditions 24 3 absolute maximum ratings and operating conditions table 1. absolute maximum ratings symbol parameter value unit v cc supply voltage (1) 1. all voltage values, except differential voltage are with respect to network ground terminal. 16 or 32 v v id differential input voltage (2) 2. differential voltages are the non-inverting input terminal with respect to the inverting input terminal. 32 v v in input voltage -0.3 to 32 v output short-circuit duration (3) 3. short-circuits from the output to v cc can cause excessive heating if v cc+ > 15 v. the maximum output current is approximately 40 ma, independent of the magnitude of v cc . destructive dissipation can result from simultaneous short-circuits on all amplifiers. infinite s i in input current (4) : v in driven negative input current (5) : v in driven positive above amr value 4. this input current only exists when the voltage at any of the input leads is driven negative. it is due to the collector-base junction of the input pnp transistor becoming forward-biased and thereby acting as input diode clamp. in addition to this diode action, there is npn parasitic action on the ic chip. this transistor action can cause the output voltages of the op- amps to go to the v cc voltage level (or to ground for a large overdrive) for the time during which an input is driven negative. this is not destructive and normal output is restored for input voltages above -0.3 v. 5. the junction base/substrate of the input pnp transistor polarized in reverse must be protected by a resistor in series with the inputs to limit the input current to 400 a max (r = (vin-32 v)/400 a). 5 ma in dc or 50 ma in ac (duty cycle = 10%, t = 1s) 0.4 ma t oper operating free-air temperature range -40 to +125 c t stg storage temperature range -65 to +150 c t j maximum junction temperature 150 c r thja thermal resistance junction to ambient (6) so-8 tssop8 miniso-8 dfn8 2x2 6. short-circuits can cause excessive heating and destructive dissipation. values are typical. 125 120 190 57 c/w r thjc thermal resistance junction to case (6) so-8 tssop8 miniso-8 40 37 39 c/w esd hbm: human body model (7) 7. human body model: a 100 pf capacitor is charged to the specified voltage, then discharged through a 1.5 kw resistor between two pins of the device. this is done for all couples of connected pin combinations while the other pins are floating. 300 v mm: machine model (8) 8. machine model: a 200 pf capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5 w). this is done for all couples of connected pin combinations while the other pins are floating. 200 v cdm: charged device model (9) 9. charged device model: all pins and the package are charged together to the specified voltage and then discharged directly to the ground through only one pin. this is done for all pins. 1.5 kv
absolute maximum ratings and operating conditions lm2904, LM2904A 6/24 docid2471 rev 15 table 2. operating conditions symbol parameter value unit v cc supply voltage 3 to 30 v v icm common mode input voltage range 0 to v cc+ - 1.5 v t oper operating free-air temperature range -40 to +125 c
docid2471 rev 15 7/24 lm2904, LM2904A electrical characteristics 24 4 electrical characteristics table 3. v cc+ = 5 v, v cc- = ground, v o = 1.4 v, t amb = 25 c (unless otherwise specified) symbol parameter min. typ. max. unit v io input offset voltage (1) t amb = 25 c lm2904 t amb = 25 c LM2904A t min ?? t amb ?? t max lm2904 t min ?? t amb ?? t max LM2904A 2 1 7 2 9 4 mv ? v io / ? t input offset voltage drift 7 30 v/c i io input offset current t amb = 25 c t min ?? t amb ?? t max 230 40 na ? i io ?? t input offset current drift 10 300 pa/c i ib input bias current (2) t amb = 25 c t min ?? t amb ?? t max 20 150 200 na a vd large signal voltage gain v cc+ = +15 v, r l = 2 k ? , v o = 1.4 v to 11.4 v t amb = 25 c t min ? t amb ? t max 50 25 100 v/mv svr supply voltage rejection ratio (r s ?? 10 k ? ) t amb = 25 c t min ? t amb ? t max 65 65 100 db i cc supply current, all amp, no load t amb = 25c, v cc+ = +5 v t min ? t amb ? t max , v cc+ = +30 v 0.7 1.2 2 ma v icm input common mode voltage range (v cc+ = +30 v) (3) t amb = 25 c t min ?? t amb ? t max 0 0 v cc+ -1.5 v cc+ -2 v cmr common-mode rejection ratio (r s ?? 10 k ? ) t amb = 25 c t min ? t amb ? t max 70 60 85 db i source output short-circuit current v cc+ = +15 v, v o = +2 v, v id = +1 v 20 40 60 ma i sink output sink current v o = 2 v, v cc+ = +5 v v o = +0.2 v, v cc+ = +15 v 10 12 20 50 ma a v oh high level output voltage (v cc+ = + 30 v) t amb = +25 c, r l ?? 2 k ? t min ? t amb ? t max t amb = +25 c, r l ?? 10 k ? t min ?? t amb ?? t max 26 26 27 27 27 28 v
electrical characteristics lm2904, LM2904A 8/24 docid2471 rev 15 v ol low level output voltage (r l ?? 10 k ? ) t amb = +25 c t min ? t amb ? t max 520 20 sr slew rate v cc+ = 15 v, v in = 0.5 to 3 v, r l ?? 2 k ? , c l =100 pf, unity gain t min ? t amb ? t max 0.3 0.2 0.6 gbp gain bandwidth product f = 100 khz v cc+ = 30 v, v in = 10 mv, r l ?? 2 k ? , c l = 100 pf 0.7 1.1 mhz thd total harmonic distortion f = 1 khz, a v = 20 db, r l = 2 k ? , v o = 2 v pp , c l = 100 pf, v cc+ = 30 v 0.02 % e n equivalent input noise voltage f = 1 khz, r s = 100 ? , v cc+ = 30 v 55 nv/ ?? hz v o1 /v o2 channel separation (4) 1 khz ? f ? 20 khz 120 db 1. v o = 1.4 v, r s = 0 w, 5 v < v cc+ < 30 v, 0 v < v ic < v cc+ - 1.5 v. 2. the direction of the input current is out of the ic. this current is essentially constant, independent of the state of the ou tput, so there is no change in the loading charge on the input lines. 3. the input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3 v. the upper end of the common-mode voltage range is v cc+ ?1.5 v, but either or both inputs can go to +32 v without damage. 4. due to the proximity of external components, ensure that the stray capacitance does not cause coupling between these external parts. this can typically be detected at higher frequencies because this type of capacitance increases. table 3. v cc+ = 5 v, v cc- = ground, v o = 1.4 v, t amb = 25 c (unless otherwise specified) (continued) symbol parameter min. typ. max. unit
docid2471 rev 15 9/24 lm2904, LM2904A electrical characteristics 24 figure 4. open-loop frequency response figure 5. large signal frequency response voltage gain (db) 1.0 10 100 1k 10k 100k 1m 10m v cc = +10 to + 15v & frequency (hz) 10m v i v cc /2 v cc = 30v & 0.1 f v cc v o - + -55c t amb +125c 140 120 100 80 60 40 20 0 -55c t amb +125c frequency (hz) 1k 10k 100k 1m output swing (vpp) +7v 2k 1k 100k +15v vo - + v i 20 15 10 5 0 figure 6. voltage follower large signal response figure 7. current sinking output characteristics input voltage (v) output voltage (v) volage follower pulse response 010203040 t i m e ( s ) rl 2 k vcc = +15v 4 3 2 1 0 3 2 1 output characteristics output sink current (ma) 0,001 0,01 0,1 1 10 100 output voltag e(v) vcc = +5v vcc = +15v vcc = +30v - i o v o t amb =+25c v cc /2 v cc + 10 1 0.1 0.01 figure 8. voltage follower small signal response figure 9. current sourcing output characteristics
electrical characteristics lm2904, LM2904A 10/24 docid2471 rev 15 figure 10. input current versus temperature figure 11. current limiting figure 12. input voltage range figure 13. supply current figure 14. voltage gain figure 15. input current versus supply voltage 010203040 positive supply voltage (v) voltage gain (db) 160 120 80 40 l r = 20k l r=2k
docid2471 rev 15 11/24 lm2904, LM2904A electrical characteristics 24 figure 16. gain bandwidth product figure 17. power supply rejection ratio figure 18. common-mode rejection ratio figure 19. phase margin vs capacitive load phase margin at vcc=15v and vicm=7.5v vs. iout and capacitive load value
electrical characteristics lm2904, LM2904A 12/24 docid2471 rev 15 4.1 typical single-supply applications figure 20. ac coupled inverting amplifier figure 21. ac coupled non-inverting amplifier 1/2 lm2 9 04 ~ 0 2v pp r 10 k l c o e o r 6.2 k b r 100 k f r1 10 k c i e i v cc r2 100 k c1 10 f r3 100 k a=- r r1 v f (as shown a = -10) v 1/2 lm2 9 04 ~ 0 2v pp r 10 k l c o e o r 6.2 k b c1 0.1 f e i v cc (as shown a = 11) v a=1+ r2 r1 v r1 100 k r2 1 m c i r3 1 m r4 100 k r5 100 k c2 10 f figure 22. non-inverting dc gain figure 23. dc summing amplifier r1 10 k r2 1 m 1/2 lm2 9 04 10 k e i e o +5v e o (v ) (mv) 0 a v =1+ r2 r1 (as shown = 101) a v 1/2 lm2 9 04 e o e 4 e 3 e 2 e 1 100 k 100 k 100 k 100 k 100 k 100 k eo = e1 + e2 - e3 - e4 where (e1 + e2) (e3 + e4) to keep eo 0v figure 24. high input z, dc differential amplifier figure 25. using symmetrical amplifiers to reduce input current + 1/2 lm2 9 04 r1 100 k r2 100 k r4 100 k r3 100 k +v2 v1 v o 1/2 lm2 9 04 if r1 = r5 and r3 = r4 = r6 = r7 eo = [ 1 + ] (e2 - e1) as shown eo = 101 (e2 - e1) 2r1 r2 i b 2n 9 2 9 0.001 f i b 3 m i b e o i i e i i b i b input current compensation 1.5 m 1/2 lm2 9 04 1/2 lm2 9 04
docid2471 rev 15 13/24 lm2904, LM2904A electrical characteristics 24 table 4. low drift peak detector table 5. active bandpass filter 1/2 lm2 9 04 i b 2n 9 2 9 0.001 f i b 3r 3 m i b input current compensation e o i b e i z o z i c 1 f 2i b r 1 m 2i b 1/2 lm2 9 04 1/2 lm2 9 04 1/2 lm2 9 04 r8 100 k c3 10 f r7 100 k r5 470 k c1 330 pf v o v c c r6 470 k c2 330 pf r4 10 m r1 100 k r2 100 k + v1 r3 100 k 1/2 lm2 9 04 1/2 lm2 9 04 fo = 1 khz q = 50 av = 100 (40 db)
macromodel lm2904, LM2904A 14/24 docid2471 rev 15 5 macromodel an accurate macromodel of the lm2904 is available on stmicroelectronics? web site at www.st.com . this model is a trade-off between accuracy and complexity (that is, time simulation) of the lm2904 operational amplifier. it emulates the nominal performances of a typical device within the specified operating conditions mentioned in the datasheet. it also helps to validate a design approach and to select the right operational amplifier, but it does not replace on-board measurements .
docid2471 rev 15 15/24 lm2904, LM2904A package information 24 6 package information in order to meet environmental requirements, st offers these devices in different grades of ecopack ? packages, depending on their level of environmental compliance. ecopack ? specifications, grade definitions and product status are available at: www.st.com . ecopack ? is an st trademark.
package information lm2904, LM2904A 16/24 docid2471 rev 15 6.1 so-8 package information figure 26. so-8 package mechanical drawing table 6. so-8 package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a 1.75 0.069 a1 0.10 0.25 0.004 0.010 a2 1.25 0.049 b 0.28 0.48 0.011 0.019 c 0.17 0.23 0.007 0.010 d 4.80 4.90 5.00 0.189 0.193 0.197 e 5.80 6.00 6.20 0.228 0.236 0.244 e1 3.80 3.90 4.00 0.150 0.154 0.157 e 1.27 0.050 h 0.25 0.50 0.010 0.020 l 0.40 1.27 0.016 0.050 l1 1.04 0.040 k1818 ccc 0.10 0.004
docid2471 rev 15 17/24 lm2904, LM2904A package information 24 6.2 dfn8 2 x 2 mm package mechanical data figure 27. dfn8 2 x 2 mm package mechanical drawing table 7. dfn8 2 x 2 mm package mechanical data (pitch 0.5 mm) ref. dimensions millimeters inches min. typ. max. min. typ. max. a 0.51 0.55 0.60 0.020 0.022 0.024 a1 0.05 0.002 a3 0.15 0.006 b 0.18 0.25 0.30 0.007 0.010 0.012 d 1.85 2.00 2.15 0.073 0.079 0.085 d2 1.45 1.60 1.70 0.057 0.063 0.067 e 1.85 2.00 2.15 0.073 0.079 0.085 e2 0.75 0.90 1.00 0.030 0.035 0.039 e 0.50 0.020 l 0.50 0.020 ddd 0.08 0.003
package information lm2904, LM2904A 18/24 docid2471 rev 15 figure 28. dfn8 2 x 2 mm footprint recommendation 2.80 mm 0.30 mm 0.50 mm 0.45 mm 1.60 mm 0.75 mm
docid2471 rev 15 19/24 lm2904, LM2904A package information 24 6.3 tssop8 package information figure 29. tssop8 package mechanical drawing figure 30. tssop8 package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a 1.20 0.047 a1 0.05 0.15 0.002 0.006 a2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.008 d 2.90 3.00 3.10 0.114 0.118 0.122 e 6.20 6.40 6.60 0.244 0.252 0.260 e1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 0.0256 k0808 l 0.45 0.60 0.75 0.018 0.024 0.030 l1 1 0.039 aaa 0.10 0.004
package information lm2904, LM2904A 20/24 docid2471 rev 15 6.4 miniso-8 package information figure 31. miniso-8 package mechanical drawing table 8. miniso-8 package mechanical data ref. dimensions millimeters inches min. typ. max. min. typ. max. a 1.1 0.043 a1 0 0.15 0 0.006 a2 0.75 0.85 0.95 0.030 0.033 0.037 b 0.22 0.40 0.009 0.016 c 0.08 0.23 0.003 0.009 d 2.80 3.00 3.20 0.11 0.118 0.126 e 4.65 4.90 5.15 0.183 0.193 0.203 e1 2.80 3.00 3.10 0.11 0.118 0.122 e 0.65 0.026 l 0.40 0.60 0.80 0.016 0.024 0.031 l1 0.95 0.037 l2 0.25 0.010 k0808 ccc 0.10 0.004
docid2471 rev 15 21/24 lm2904, LM2904A ordering information 24 7 ordering information table 9. order codes order code temperature range package packing marking lm2904d/dt -40 c to +125 c so-8 tube or tape & reel 2904 lm2904pt tssop8 (thin shrink outline package) tape & reel lm2904st miniso-8 tape & reel k403 lm2904q2t dfn8 2 x 2 tape & reel k1y lm2904ydt (1) so-8 (automotive grade level) tape & reel 2904y LM2904Aydt (1) 2904ay lm2904ypt (2) tssop8 (automotive grade level) tape & reel 2904y LM2904Aypt (2) 904ay lm2904yst (1) miniso-8 (automotive grade level) tape & reel k409 1. qualified and characterized according to aec q100 and q003 or equivalent, advanced screening according to aec q001 & q 002 or equivalent. 2. qualification and characterization according to aec q100 and q003 or equivalent, advanced screening according to aec q001 & q 002 or equivalent are on-going.
revision history lm2904, LM2904A 22/24 docid2471 rev 15 8 revision history table 10. document revision history date revision changes 02-jan-2002 1 initial release. 20-jun-2005 2 ppap references inserted in the datasheet, see table 9 on page 21 . esd protection inserted in table 1 on page 5 . 10-oct-2005 3 ppap part numbers added in table table 9 on page 21 . 12-dec-2005 4 pin connections identification added on cover page figure. thermal resistance junction to case information added see table 1 on page 5 . 01-feb-2006 5 maximum junction temperature parameter added in table 1 on page 5 . 02-may-2006 6 minimum slew rate parameter in temperature table 3 on page 7 . 13-jul-2006 7 modified esd values and added explanation on v cc , v id in table 1 on page 5 . added macromodel information. 28-feb-2007 8 modified esd/hbm values in table 1 on page 5 . updated miniso-8 package information. added note relative to automotive grade level part numbers in table 9 on page 21 . 18-jun-2007 9 power dissipation value corrected in table 1: absolute maximum ratings . table 2: operating conditions added. equivalent input noise voltage parameter added in table 3 . electrical characteristics curves updated. figure 19: phase margin vs capacitive load added. section 6: package information updated. 18-dec-2007 10 removed power dissipation parameter from table 1: absolute maximum ratings . removed v opp from electrical characteristics in table 3 . corrected miniso-8 package mechanical data in section 6.4: miniso-8 package information . 08-apr-2008 11 added table of contents. corrected the scale of figure 7 (ma not a). corrected so-8 package information. 02-jun-2009 12 added input current information in table 1: absolute maximum ratings . added l1 parameters in table 6: so-8 package mechanical data . added new order codes, LM2904Ayd/dt, LM2904Aypt and LM2904Ayst in table 9: order codes . 13-apr-2010 13 added LM2904A on cover page. corrected footnote (5) in table 1: absolute maximum ratings . removed order code LM2904Ayst from table 9: order codes .
docid2471 rev 15 23/24 lm2904, LM2904A revision history 24 24-jan-2012 14 removed macromodel from chapter 5 (now available on www.st.com ). added dfn8 2 x 2 mm package information in chapter 6 and related order codes in chapter 7 . removed lm2904yd and LM2904Ayd order codes from table 9 . changed note for lm2904yst order code in table 9 . 24-jan-2014 15 updated: marking info for LM2904Aypt, package silhouette drawings in the cover page, ? v io / ? t and ? i io ?? t symbols in table 3 on page 7 added: esd info in features section and section 2: package pin connections removed: lm2904n from table 9: order codes . table 10. document revision history (continued) date revision changes
lm2904, LM2904A 24/24 docid2471 rev 15 please read carefully: information in this document is provided solely in connection with st products. stmicroelectronics nv and its subsidiaries (?st ?) reserve the right to make changes, corrections, modifications or improvements, to this document, and the products and services described he rein at any time, without notice. a ll st products are sold pursuant to st?s terms and conditions of sale. purchasers are solely responsible for the choice, selection and use of the st products and services described herein, and st as sumes no liability whatsoever relating to the choice, selection or use of the st products and services described herein. no license, express or implied, by estoppel or otherwise, to any intellectual property rights is granted under this document. i f any part of this document refers to any third party products or services it shall not be deemed a license grant by st for the use of such third party products or services, or any intellectual property contained therein or considered as a warranty covering the use in any manner whatsoev er of such third party products or services or any intellectual property contained therein. unless otherwise set forth in st?s terms and conditions of sale st disclaims any express or implied warranty with respect to the use and/or sale of st products including without limitation implied warranties of merchantability, fitness for a particular purpose (and their equivalents under the laws of any jurisdiction), or infringement of any patent, copyright or other intellectual property right. st products are not designed or authorized for use in: (a) safety critical applications such as life supporting, active implanted devices or systems with product functional safety requirements; (b) aeronautic applications; (c) automotive applications or environments, and/or (d) aerospace applications or environments. where st products are not designed for such use, the purchaser shall use products at purchaser?s sole risk, even if st has been informed in writing of such usage, unless a product is expressly designated by st as being intended for ?automotive, automotive safety or medical? industr y domains according to st product design specifications. products formally escc, qml or jan qualified are deemed suitable for use in aerospace by the corresponding governmental agency. resale of st products with provisions different from the statements and/or technical features set forth in this document shall immediately void any warranty granted by st for the st product or service described herein and shall not create or extend in any manner whatsoev er, any liability of st. st and the st logo are trademarks or registered trademarks of st in various countries. information in this document supersedes and replaces all information previously supplied. the st logo is a registered trademark of stmicroelectronics. all other names are the property of their respective owners. ? 2014 stmicroelectronics - all rights reserved stmicroelectronics group of companies australia - belgium - brazil - canada - china - czech republic - finland - france - germany - hong kong - india - israel - ital y - japan - malaysia - malta - morocco - philippines - singapore - spain - sweden - switzerland - united kingdom - united states of america www.st.com

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