1/10 n wide gain bandwidth: 1.3mhz n input common-mode voltage range includes ground n large voltage gain: 100db n very low supply current/ampli: 375a n low input bias current: 20na n low input offset current:2na n wide power supply range: single supply: +3v to +30v dual supplies: 1.5v to 15v n esd internal protection : 2kv description this circuit consists of four independent, high gain, internally frequency compensated operation- al amplifiers which were designed specially for au- tomotive and industrial control systems. it oper- ates from a single power supply over a wide range of voltages. operation from split power supplies is also possible. all the pins are protected against electrostatic discharges up to 2000v. order code n = dual in line package (dip) d = small outline package (so) - also available in tape & reel (dt) p = thin shrink small outline package (tssop) - only available in tape & reel (pt) pin connections (top view) part number temperature range package ndp lm2902w -40c, +125c n dip14 (plastic package) d so14 (plastic micropackage) p tssop14 (thin shrink small outline package) inverting input 2 non-inverting input 2 non-inverting input 1 cc v - cc v 1 2 3 4 8 5 6 7 9 10 11 12 13 14 + output 3 output 4 non-inverting input 4 inverting input 4 non-inverting input 3 inverting input 3 - + - + - + - + output 1 inverting input 1 output 2 lm2902w low power quad operational amplifier sept 2003
lm2902w 2/10 schematic diagram (1/4 lm2902) absolute maximum ratings symbol parameter value unit v cc supply voltage 16 to 32 v v id differential input voltage -0.3 to vcc + 0.3 v v i input voltage -0.3 to vcc + 0.3 v output short-circuit to ground 1) 1. short-circuit from the output to v cc can cause excessive heating if v cc > 15v. the maximum output current is approximately 40ma independent of the magnitude of v cc . destructive dissipation can result from simultaneous short-circuit on all amplifiers. infinite p tot power dissipation n suffix d suffix 500 400 mw i in input current 2) 2. 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 diodes clamps. in addition to this diode action, there is also n pn 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 duration than an input is driven negative. this is not destructive and normal output will set up again for input v oltage higher than -0.3v. 50 ma t oper operating free-air temperature range -40 to +125 c t stg storage temperature range -65 to +150 c
lm2902w 3/10 electrical characteristics v cc + = 5v, v cc - = ground, v o = 1.4v, t amb = 25c (unless otherwise specified) symbol parameter min. typ. max. unit v io input offset voltage 1) t amb = +25c t min t amb t max . 27 9 mv i io input offset current t amb = +25c t min t amb t max. 230 40 na i ib input bias current 2) t amb = +25c t min t amb t max. 20 150 300 na a vd large signal voltage gain v cc + = +15v,r l =2k w , v o = 1.4v to 11.4v t amb = +25c t min t amb t max. 50 25 100 v/mv svr supply voltage rejection ratio (r s 10k w ) t amb = +25c t min t amb t max. 65 65 110 db i cc supply current, all amp, no load t amb = +25c v cc = +5v v cc = +30v t min t amb t max. v cc = +5v v cc = +30v 0.7 1.5 0.8 1.5 1.2 3 1.2 3 ma v icm input common mode voltage range (v cc = +30v) 3) t amb = +25c t min t amb t max. 0 0 v cc -1.5 v cc -2 v cmr common-mode rejection ratio (r s 10k w ) t amb = +25c t min t amb t max. 70 60 80 db i o output short-circuit current (v id = +1v) v cc = +15v, v o = +2v 20 40 70 ma i sink output sink current (v id = -1v) v cc = +15v, v o = +2v v cc = +15v, v o = +0.2v 10 12 20 50 ma a v oh high level output voltage (v cc + 30v) t amb = +25c r l = 2k w t min t amb t max. t amb = +25c r l = 10k w t min t amb t max. (v cc + 5v), r l = 2k w t min t amb t max. t amb = +25c 26 26 27 27 3.5 3 27 28 v v ol low level output voltage (r l = 10k w ) t amb = +25c t min t amb t max 520 20 mv sr slew rate v cc = 15v, vi = 0.5 to 3v, r l = 2k w , c l = 100pf, unity gain 0.4 v/s
lm2902w 4/10 gbp gain bandwidth product v cc = 30v,v in = 10mv, r l = 2k w , c l = 100pf 1.3 mhz thd total harmonic distortion f = 1khz, a v = 20db, r l = 2k w , v o = 2vpp, c l = 100pf, v cc = 30v 0.015 % e n equivalent input noise voltage f = 1khz, r s = 100 w , v cc = 30v 40 dv io input offset voltage drift 7 30 v/c di io input offset current drift 10 200 pa/c v o1 /v o2 channel separation 4) 1khz f 20khz 120 db 1. v o = 1.4v, r s = 0 w , 5v < v cc + < 30v, 0v < v ic < v cc + - 1.5v 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 no loading charge change exists 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 0.3v. the uppe r end of the common-mode voltage range is v cc + C1.5v, but either or both inputs can go to +32v without damage. 4. due to the proximity of external components insure that coupling is not originating via stray capacitance between these exter nal parts. this typically can be detected as this type of capacitance increases at higher frequences. symbol parameter min. typ. max. unit nv hz ----------- - -55-35-15 5 25 45 65 85 105 125 ambient temperature (c) 24 21 18 15 9 12 6 3 0 input bias current versus ambient temperature ib (na) output current (ma) current limiting (note 1) - + i o temperature (c) 90 80 70 60 50 40 30 20 10 0 -55 -35 -15 5 25 45 65 85 105 125 input voltage (v) input voltage range 0 5 10 15 power supply voltage (v) ngative positive 15 10 5 supply current (ma) supply current 0102030 t amb = -55c v cc ma i d - + t amb = 0c to +125c positive supply voltage (v) 4 3 2 1
lm2902w 5/10 -55-35-15 5 25 45 65 85 105 125 ambient temperature (c) gain bandwidth product (mhz) 1.35 1.30 1.25 1.2 1.15 1.05 1.1 1 -95 -9 gain bandwidth product gbp (mhz) common mode rejection ratio frequency (hz) 120 100 80 60 40 20 0 100 1k 10k 100k 1m common mode rejection ratio (db) 100 w 100k w +7.5v - + e i 100k w 100 w +7.5v e o voltage gain (db) open loop frequency response (note 3) 1.0 10 100 1k 10k 100k 1m 10m v cc = +10 to + 15v & frequency (hz) 10m w v i v cc /2 v cc = 30v & 0.1 m f v cc v o - + -55c t amb +125c 140 120 100 80 60 40 20 0 -55c t amb +125c large signal frequency response frequency (hz) 1k 10k 100k 1m output swing (vpp) +7v 2k w 1k w 100k w +15v vo - + v i 20 15 10 5 0 input voltage (v) output voltage (v) volage follower pulse response 010203040 t i me ( m s ) rl 2 k w 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 voltage (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 output voltage (mv) voltage follower pulsse response (small signal) 012345678 input t amb =+25c v cc =30v output e o e l 50pf + - time ( m s) 500 450 400 350 300 250 output voltage referenced to v cc + (v) output characteristics 0,01 0,1 1 10 100 0,001 independent of v cc t amb = +25c + - v cc v o i o v cc /2 output source current (ma) 8 7 6 5 4 3 2 1
lm2902w 6/10 typical single - supply applications ac coupled inverting amplifier ac coupled non-inverting amplifier non-inverting dc gain 0 10 20 30 positive supply voltage (v) input current (na) 100 75 50 25 amb t = +25c 0102030 positive supply voltage (v) voltage gain (db) 160 120 80 40 l r=20k w l r=2k w -55-35-15 5 25 45 65 85 105 125 ambient temperature (c) power supply & common mode rejection ratio (db) 120 115 110 105 100 90 95 85 80 75 power supply & common mod e rejection ratio (db) 70 svr cmr -55-35-15 5 25 45 65 85 105 125 ambient temperature (c) large signal voltage gain 120 115 110 105 100 large signal voltage gain avd (db) -55 1/4 lm2902 ~ 0 2v pp r 10k w l c o e o r 6.2k w b r 100k w f r1 10k w c i e i v cc r2 100k w c1 10 m f r3 100k w a=- r r1 v f (as shown a = -10) v 1/4 lm2902 ~ 0 2v pp r 10k w l c o e o r 6.2k w b c1 0.1 m f e i v cc (as shown a = 11) v a=1+ r2 r1 v r1 100k w r2 1m w c i r3 1m w r4 100k w r5 100k w c2 10 m f r1 10k w r2 1m w 1/4 lm2902 10k w e i e o +5v e o (v) (mv) 0 a v =1+ r2 r1 (as shown = 101) a v
lm2902w 7/10 dc summing amplifier high input z adjustable gain dc instrumentation amplifier low drift peak detector activer badpass filter high input z, dc differential amplifier using symmetrical amplifiers to reduce input current (general concept) 1/4 lm2902 e o e 4 e 3 e 2 e 1 100k w 100k w 100k w 100k w 100k w 100k w eo = e1 + e2 - e3 - e4 where (e1 + e2) (e3 + e4) to keep eo 0v 3 3 r3 100k w e o r1 100k w e 1 1/4 lm2902 r7 100k w r6 100k w r5 100k w e 2 r2 2k w gain adjust r4 100k w 1/4 lm2902 1/4 lm2902 if r1 = r5 and r3 = r4 = r6 = r7 eo = [ 1 + ] (e2 - e1) as shown eo = 101 (e2 - e1) 2r1 r2 i b 2n 929 0.001 m f i b 3r 3m w i b input current compensation e o i b e i 1/4 lm2902 z o z i c 1 m f 2i b r 1m w 2i b * polycarbonate or polyethylene * 1/4 lm2902 1/4 lm2902 r3 10k w 1/4 lm2902 e 1 e o r8 100k w r7 100k w c3 10 m f v cc r5 470k w c2 330pf r4 10m w r6 470k w r1 100k w c1 330pf 1/4 lm2902 1/4 lm2902 fo = 1khz q = 50 av = 100 (40db) 1/4 lm2902 r1 100k w r2 100k w r4 100k w r3 100k w +v2 +v1 v o 1/4 lm2902 eo = [ 1 + ] (e2 - e1) as shown eo = (e2 - e1) r4 r3 1/4 lm2902 i b 2n 929 0.001 m f i b 3m w i b e o i i e i i b i b aux. amplifier for input current compensation 1.5m w 1/4 lm2902
lm2902w 8/10 dim. mm. inch min. typ max. min. typ. max. a1 0.51 0.020 b 1.39 1.65 0.055 0.065 b 0.5 0.020 b1 0.25 0.010 d 20 0.787 e 8.5 0.335 e 2.54 0.100 e3 15.24 0.600 f 7.1 0.280 i 5.1 0.201 l 3.3 0.130 z 1.27 2.54 0.050 0.100 plastic dip-14 mechanical data p001a package mechanical data
lm2902w 9/10 package mechanical data dim. mm. inch min. typ max. min. typ. max. a 1.75 0.068 a1 0.1 0.2 0.003 0.007 a2 1.65 0.064 b 0.35 0.46 0.013 0.018 b1 0.19 0.25 0.007 0.010 c 0.5 0.019 c1 45? (typ.) d 8.55 8.75 0.336 0.344 e 5.8 6.2 0.228 0.244 e 1.27 0.050 e3 7.62 0.300 f 3.8 4.0 0.149 0.157 g 4.6 5.3 0.181 0.208 l 0.5 1.27 0.019 0.050 m 0.68 0.026 s ? (max.) so-14 mechanical data po13g 8
lm2902w 10/10 package mechanical data dim. mm. inch min. typ max. min. typ. max. a 1.2 0.047 a1 0.05 0.15 0.002 0.004 0.006 a2 0.8 1 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.012 c 0.09 0.20 0.004 0.0089 d 4.9 5 5.1 0.193 0.197 0.201 e 6.2 6.4 6.6 0.244 0.252 0.260 e1 4.3 4.4 4.48 0.169 0.173 0.176 e 0.65 bsc 0.0256 bsc k0? 8?0? 8? l 0.45 0.60 0.75 0.018 0.024 0.030 tssop14 mechanical data c e b a2 a e1 d 1 pin 1 identification a1 l k e 0080337d information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibility for the consequences of use of such information nor for any infringement of patents or other rights of third parties which may result f rom its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specificati ons mentioned in this publication are subject to change without notice. this publication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life support devices or systems without express written approval of stmicroelectronics. ? the st logo is a registered trademark of stmicroelectronics ? 2001 stmicroelectronics - printed in italy - all rights reserved stmicroelectronics group of companies australia - brazil - canada - china - finland - france - germany - hong kong - india - israel - italy - japan - malaysia malta - morocco - singapore - spain - sweden - switzerland - united kingdom - united states ? http://www.st.com
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