1/11 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: 375 m a 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 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 and the low power supply current drain is independent of the magnitude of the pow- er supply voltage. 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 lm2902 -40 c, +125 c ??? n dip14 (plastic package) d so14 (plastic micropackage) p tssop14 (thin shrink small outline package) inve rting input 2 non-inve rting i nput 2 non-inve rting input 1 cc v - cc v 1 2 3 4 8 5 6 7 9 10 11 12 13 14 + ou tput 3 ou tput 4 non-inve rting input 4 inve rting inpu t 4 non-inve rting input 3 inve rting inpu t 3 - + - + - + - + outp ut 1 inverting inpu t 1 outpu t 2 lm2902 low power quad operational amplifier november 2001
lm2902 2/11 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 +32 v v i input voltage -0.3 to +32 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 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 duration than an input is driven negative. this is not destructive and normal output will set up again for input voltage 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 6 m a 4 m a 100 m a q2 q3 q4 q1 inverting input non-inverting input q8 q9 q10 q11 q12 50 m a q13 output q7 q6 q5 r sc v cc c c gnd
lm2902 3/11 electrical characteristics v cc + = 5v, v cc - = ground, v o = 1.4v, t amb =25 c (unless otherwise specified) symbol parameter min. typ. max. unit v io input offset voltage 1) t amb = +25 c t min t amb t max . 27 9 mv i io input offset current t amb = +25 c t min t amb t max. 230 40 na i ib input bias current 2) t amb = +25 c 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 = +25 c t min t amb t max. 50 25 100 v/mv svr supply voltage rejection ratio (r s 10k w ) t amb = +25 c t min t amb t max. 65 65 110 db i cc supply current, all amp, no load t amb = +25 cv 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 = +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 10k w ) t amb = +25 c 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 m a v oh high level output voltage (v cc + 30v) t amb = +25 cr l = 2k w t min t amb t max. t amb = +25 cr l = 10k w t min t amb t max. (v cc + 5v), r l = 2k w t min t amb t max. t amb = +25 c 26 26 27 27 3.5 3 27 28 v v ol low level output voltage (r l = 10k w ) t amb = +25 c 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/ m s
lm2902 4/11 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 m 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 lm2902 5/11 -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 produc t 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 .5 v 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 - + -55 c t amb +12 5 c 140 120 100 80 60 40 20 0 -55 c t amb +125 c 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 time ( m s) rl 2 k w vcc = +15v 4 3 2 1 0 3 2 1 outp ut c haracte ristics outp ut s inkcurrent (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 =+25 c v cc /2 v cc + 10 1 0.1 0.01 output voltage (mv) voltage follower pulsse response (small signal) 012345678 input t amb =+25 c 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) outp ut characteristics 0,01 0,1 1 10 100 0,001 independent of v cc t amb =+25 c + - v cc v o i o v cc /2 outp ut s our ce current (ma) 8 7 6 5 4 3 2 1
lm2902 6/11 typical single - supply applications ac coupled inverting amplifier ac coupled non-inverting amplifier non-inverting dc gain 0102030 positive sup ply voltage (v) input current (na) 100 75 50 25 amb t=+25 c 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 p ower s up p ly& common mode rej e ction 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
lm2902 7/11 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 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
lm2902 8/11 macromodels ** standard linear ics macromodels, 1993. ** connections : * 1 inverting input * 2 non-inverting input * 3 output * 4 positive power supply * 5 negative power supply .subckt lm2902 1 3 2 4 5 (analog) **************** *************** ********** ********** ***** .model mdth d is=1e-8 kf=3.104131e-15 cjo=10f * input stage cip 2 5 1.000000e-12 cin 1 5 1.000000e-12 eip 10 5 2 5 1 ein 16 5 1 5 1 rip 10 11 2.600000e+01 rin 15 16 2.600000e+01 ris 11 15 2.003862e+02 dip 11 12 mdth 400e-12 din 15 14 mdth 400e-12 vofp 12 13 dc 0 vofn 13 14 dc 0 ipol 13 5 1.000000e-05 cps 11 15 3.783376e-09 dinn 17 13 mdth 400e-12 vin 17 5 0.000000e+00 dinr 15 18 mdth 400e-12 vip 4 18 2.000000e+00 fcp 4 5 vofp 3.400000e+01 fcn 5 4 vofn 3.400000e+01 fibp 2 5 vofn 2.000000e-03 fibn 5 1 vofp 2.000000e-03 * amplifying stage fip 5 19 vofp 3.600000e+02 fin 5 19 vofn 3.600000e+02 rg1 19 5 3.652997e+06 rg2 19 4 3.652997e+06 cc 19 5 6.000000e-09 dopm 19 22 mdth 400e-12 donm 21 19 mdth 400e-12 hopm 22 28 vout 7.500000e+03 vipm 28 4 1.500000e+02 honm 21 27 vout 7.500000e+03 vinm 5 27 1.500000e+02 eout 26 23 19 5 1 vout 23 5 0 rout 26 3 20 cout 3 5 1.000000e-12 dop 19 25 mdth 400e-12 vop 4 25 2.242230e+00 don 24 19 mdth 400e-12 von 24 5 7.922301e-01 .ends electrical characteristics v cc + =5v,v cc -=0v,t amb =25 c (unless otherwise specified) symbol conditions value unit v io 0mv a vd r l =2k w 100 v/mv i cc no load, per operator 350 m a v icm -15 to +13.5 v v oh r l =2k w ( v cc + = 15v) +13.5 v v ol r l =2k w 5mv i os v o = +2v, v cc = +15v +40 ma gbp r l =2k w ,c l = 100pf 1.3 mhz sr r l =2k w ,c l = 100pf 0.4 v/ m s
lm2902 9/11 package mechanical data 14 pins - plastic dip dimensions millimeters inches 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
lm2902 10/11 package mechanical data 14 pins - plastic micropackage (so) dimensions millimeters inches min. typ. max. min. typ. max. a 1.75 0.069 a1 0.1 0.2 0.004 0.008 a2 1.6 0.063 b 0.35 0.46 0.014 0.018 b1 0.19 0.25 0.007 0.010 c 0.5 0.020 c1 45 (typ.) d (1) 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 (1) 3.8 4.0 0.150 0.157 g 4.6 5.3 0.181 0.208 l 0.5 1.27 0.020 0.050 m 0.68 0.027 s8 (max.) note : (1) d and f do not include mold flash or protrusions - mold flash or protrusions shall not exceed 0.15mm (.066 inc) only for data book. d m f 14 1 7 8 b e3 e e lg c c1 a a2 a1 b1 s
lm2902 11/11 package mechanical data 14 pins -thin shrink small outline package (tssop) dimensions millimeters inches min. typ. max. min. typ. max. a 1.20 0.05 a1 0.05 0.15 0.01 0.006 a2 0.80 1.00 1.05 0.031 0.039 0.041 b 0.19 0.30 0.007 0.15 c 0.09 0.20 0.003 0.012 d 4.90 5.00 5.10 0.192 0.196 0.20 e 6.40 0.252 e1 4.30 4.40 4.50 0.169 0.173 0.177 e 0.65 0.025 k0 8 0 8 l 0.450 0.600 0.750 0.018 0.024 0.030 l1 1.00 0.039 aaa 0.100 0.004 c e1 k l e e b d pin 1 identification 1 7 8 14 seating plane c aaa c 0,25 mm .010 inch gage plane l1 a a2 a1 information furnished is believed to be accurate and reliable. however, stmicroelectronics assumes no responsibil ity for the consequences of use of such information nor for any infring ement of patents or other righ ts of third parties which may result from its use. no license is granted by implication or otherwise under any patent or patent rights of stmicroelectronics. specifications mentioned in this publication are subject to change witho ut notice. this publ ication supersedes and replaces all information previously supplied. stmicroelectronics products are not authorized for use as critical components in life suppo rt devices or systems withou t 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 - swit zerland - united kingdom - united states ? http://www. st.com
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