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(R)
LM2902
LOW POWER QUAD OPERATIONAL AMPLIFIERS
.WI .I .LARGEVOLTAGEGAI .VERYLOWSUPPLYCURRENT/ .LOWI .LOWI .WI
DE GAIN BANDWIDTH : 1.3MHz NPUT COMMON-MODE VOLTAGE RANGE INCLUDES GROUND N : 100dB AMPLI : 375A NPUT BIAS CURRENT : 20nA NPUT OFFSET CURRENT : 2nA DE POWER SUPPLY RANGE : SINGLE SUPPLY : +3V TO +30V DUAL SUPPLIES : 1.5V TO 15V
N DIP14 (Plastic Package)
D SO14 (Plastic Micropackage)
DESCRIPTION This circuit consists of four independent, high gain, internally frequency compensated operational amplifiers which were designed specifically for automotive and industrial control systems. It operates 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 power supply voltage. PIN CONNECTIONS (top view)
P TSSOP14 (Thin Shrink Small Outline Package)
ORDER CODES
Part Number LM2902 Temperature Range -40oC, +125oC Package N * D * P *
Example : LM2902D
Output 1 1 Inve rting Input 1 2 Non-inve rting Input 1 3
VCC + 4
14
Output 4 Inverting Input 4 Non-inve rting Input 4 VCC Non-inve rting Input 3 Inverting Input 3 Output 3
+
+
13 12 11
Non-inve rting Input 2 Inve rting Input 2 Output 2
5 6 7
+
+
10 9 8
-
-
August 1998
1/14
LM2902
SCHEMATIC DIAGRAM (1/4 LM2902)
VCC
6 A
4A CC
10 0A Q5 Q6
Inve rting inpu t
Q2 Q1
Q3 Q4 Q11 Q7 R SC
Non-inve rting input
Output
Q13 Q10 Q8 Q9 Q12 50A GND
ABSOLUTE MAXIMUM RATINGS
Symbol Vcc Vi Vid Ptot Iin Toper Tstg Parameter Supply Voltage Input Voltage Differential Input Voltage Power Dissipation N Suffix D Suffix LM2902 16 or 32 -0.3 to +32 +32 500 400 Infinite 50 -40 to +125 -65 to +150 mA
o o
Unit V V V mW mW
Output Short-circuit Duration - (note 1) Input Current - (note 6) Operating Free Air Temperature Range Storage Temperature Range
C C
2/14
LM2902
ELECTRICAL CHARACTERISTICS VCC+ = +5V, VCC- = Ground, VO = 1.4V, Tamb = +25oC (unless otherwise specified)
Symbol Vio Parameter Input Offset Voltage (note 3) o Tamb = +25 C Tmin. Tamb Tmax. Input Offset Current Tamb = +25oC Tmin. Tamb Tmax. Input Bias Current (note 2) o Tamb = +25 C Tmin. Tamb Tmax. Large Signal Voltage Gain + (VCC = +15V, RL = 2k, VO = 1.4V to 11.4V) o Tamb = +25 C Tmin. Tamb Tmax. Supply Voltage Rejection Ratio (RS 10k) + (VCC = 5V to 30V) o Tamb = +25 C Tmin. Tamb Tmax. Supply Current, all Amp, no load o VCC Tamb = +25 C VCC VCC Tmin. Tamb Tmax. VCC = = = = +5V +30V +5V +30V Min. Typ. 2 Max. 7 9 nA 2 30 40 nA 20 150 300 V/mV 50 25 100 dB 65 65 110 mA 0.7 1.5 0.8 1.5 1.2 3 1.2 3 V 0 0 70 60 20 10 12 80 mA 40 20 50 70 mA A VCC -1.5 VCC -2 dB Unit mV
Iio
Iib
Avd
SVR
ICC
Vicm
Input Common Mode Voltage Range (VCC = +30V) - (note 4) Tamb = +25oC Tmin. Tamb Tmax. Common-mode Rejection Ratio (RS 10k) o Tamb = +25 C Tmin. Tamb Tmax Output Short-circuit Current (V id = +1V) VCC = +15V, V o = +2V Output Sink Current (Vid = -1V) VCC = +15V, V o = +2V VCC = +15V, V o = +0.2V
CMR
Io Isink
3/14
LM2902
ELECTRICAL CHARACTERISTICS (continued)
Symbol VOH Parameter High Level Output Voltage (VCC = +30V) o Tamb = +25 C Tmin. Tamb Tmax. o Tamb = +25 C Tmin. Tamb Tmax. (VCC = +5V, RL = 2k) o Tamb = +25 C Tmin. Tamb Tmax. R L = 2k R L = 10k Min. 26 26 27 27 3.5 3 mV 5 20 20 V/s 0.4 MHz 1.3 % 0.015 40 7 10 120 30 200 nV Hz V/ C pA/ C dB
o o
Typ. 27 28
Max.
Unit V
VOL
Low Level Output Voltage (R L = 10k) Tamb = +25oC Tmin. Tamb Tmax. Slew Rate (VCC = 15V, VI = 0.5 to 3V, R L = 2k, CL = 100pF, unity gain) Gain Bandwidth Product (VCC = 30V f = 100kHz, Vin = 10mV, RL = 2k, C L = 100pF) Total Harmonic Distortion (f = 1kHz, AV = 20dB, RL = 2k, VO = 2Vpp C L = 100pF, VCC = 30V) Equivalent Input Noise Voltage (f = 1kHz, R s = 100, VCC = 30V) Input Offset Voltage Drift Input Offset Current Drift Channel Separation (note 5) 1kHz f 20kHz
SR GBP THD
en DVio DIIO VO1/VO2
Notes :
1. Shor t -cir cui t s f rom t he out put t o VCC can cause excessi ve heat i ng if VC C > 15V. T he maxi mum out put cur rent is appr oxi mat el y 40mA i ndependent of the magni t ude of VC C. D estr ucti ve di ssipat i on can r es ult f r om simul taneous short -cir cuit on al l ampli f iers. 2. The di r ect ion of the i nput cur rent is out of t he IC . Thi s cur r ent is essenti al l y constant, i ndependent of the st ate of the out put so no l oadi ng change exists on the i nput l i nes. 3. Vo = 1. 4V , R s = 0 , 5V < V CC + < 30V , 0 < V ic < V C C + - 1.5V 4. The i nput common- mode vol t age of eit her i nput si gnal volt age shoul d not be allow ed to go negat i ve by mor e than 0.3V . T he upper end of the common- mode vol tage r ange i s VCC + - 1.5V , but eit her or bot h i nput s can go to +32V w i thout damage. 5. Due t o the proxi mit y of ex ternal component s insure t hat coupl ing i s not ori gi nat ing vi a str ay capaci t ance betw een these ext ernal par t s. T hi s t ypi call y can be detect ed as t his t ype of capaci tance i ncreases at higher f requences. 6. This input cur rent onl y exi sts w hen t he volt age at any of t he i nput leads is dr iven negat ive. It i s due t o t he coll ect or - base juncti on of t he i nput PN P transistor becomi ng forw ar d biased and ther eby act ing as input diodes clamps. I n addit i on to thi s di ode act i on, there i s al so N PN par asit i c act ion on the I C chip. t hi s t ransi st or acti on can cause t he output vol t ages of the Op- amps t o go t o the V CC volt age l evel (or to ground f or a l arge over dri ve) f or t he ti me dur at ion t han an input i s dr iven negati ve. This i s not destr uct i ve and nor mal out put wi l l set up again f or i nput vol tage higher t han - 0.3V.
4/14
LM2902
INPUT BIAS CURRENT ve rsus AMBIENT TEMPERATURE
OUTPUT CURRENT (mA) CURRENT LIMITING (Note 1)
90 80 70 60 50 40 30 20 10 0
-55 -35 -15 5 25 45 65 85 105 125
+ -
IB (nA)
24 21 18 15 12 9 6 3 0
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE ( C)
INPUT VOLTAGE RANGE
15
IO
TEMP ERATURE ( C)
S UP P LY CURRENT
4
VCC
SUPPLY CURRENT (mA)
INPUT VOLTAGE (V)
3
mA
ID
10
NOga tive
-
2
+
5
P os itive
Tam b = 0 C to +125 C 1 Tamb = -55 C
0
5
10
15
0
10
20
30
P OWER SUP PLY VOLTAGE (-V)
POS ITIVE S UPP LY VOLTAGE (V) COMMON MODE REJECTION RATIO
COMMON MODE REJECTION RATIO (dB) 120
GAIN BANDWIDTH P RODUCT
GBP (mhz)
GAIN BANDWIDTH PRODUCT (MHz)
1.35
1.30 1.25 1.2 1.15 1.1 1.05 1 -95 -9
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE ( C)
100 80
100 eI 100 100k +7.5V eO + +7.5V 100k
60 40
20 0 100 1K
10K
100K
1M
FREQUENCY (Hz)
5/14
LM2902
OP EN LOOP FREQUENCY RES P ONSE (NOTE 3)
140
0.1 F VI VCC/2 + 10M
LARGE S IGNAL FREQUENCY RES P ONSE
20
100k 1k +15V VO +7V + 2k
VCC
OUTPUT SWING (Vpp)
120
VOLTAGE GAIN (dB)
100 80 60 40 20 0
1.0 10 100
VO
15
VI
VCC = 30V & -55 C Ta mb +125 C
10
5
VCC = +10 to + 15V & -55 C Ta mb +125 C
0
1k 10k 100k 1M 10M 1k 10k 100k 1M
FREQUENCY (Hz)
VOLAGE FOLLOWER PULSE RES PONS E
4 10
FREQUENCY (Hz)
OUTPUT CHARACTERISTICS
VCC = +5V VCC = +15V VCC = +30V 1
vcc v cc /2 IO + VO
OUTPUT VOLTAGE (V)
2 1 0
INPUT VOLTAGE (V)
3 2 1
OUTPUT VOLTAGE (V)
3
RL 2 k VCC = +15V
0.1
0.01
0 10 20 30 40 0,00 1 0,01 0,1
Ta mb = +25 C 1 10 100
TIME (s )
VOLTAGE FOLLOWER P ULSS E RES P ONS E (S MALL S IGNAL)
500
OUTPUT S INK CURRENT (mA)
OUTPUT CHARACTERISTICS OUTPUT VOLTAGE REFERENCED
8
V CC
OUTPUT VOLTAGE (mV)
7 6
VCC /2 + VO IO
450
el
+ eO 50pF
TO VCC + (V)
400 Input 350 Output 300 Ta mb = +25 C VCC = 30 V
0 1 2 3 4 5 6 7 8
5 4 3 2 1
0,001 0,01
-
Indepe ndent of VC C T a mb = +25 C
250
0,1
1
10
100
TIME (s)
OUTPUT S OURCE CURRENT (mA)
6/14
LM2902
100 INPUT CURRENT (nA) VOLTAGE GAIN (dB) 160
R L = 20k
75
120 R L = 2k
50
80
25
Tam b= +25 C
40
0 10 20 30 POSITIVE SUPPLY VOLTAGE (V)
P OWER SUP P LY & COMMON MODE RE JE CTION RATIO (dB) 120
0 10 20 30 POSITIVE SUPPLY VOLTAGE (V)
Avd (dB)
POWER SUPPLY & COMMON MODE REJECTION RATIO (dB)
115 110 105 100 95 90 85 80 75 70
S VR
LARGE SIGNAL VOLTAGE GAIN
LARGE S IGNAL VOLTAGE GAIN 120
115 110 105 100
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE ( C) -55
R1 100k R2 1M
C MR
-55-35-15 5 25 45 65 85 105 125 AMBIENT TEMPERATURE ( C)
TYPICAL SINGLE - SUPPLY APPLICATIONS AC COUPLED INVERTING AMPLIFIER AC COUPLED NON-INVERTING AMPLIFIER
Rf 100k
CI
R1 10k
1/4 LM290 2
Rf R1 (as shown AV = -10) A V= Co
e o0
RL 10k
C1 0.1 F
A V= 1 + R2 R1 (as s hown A = 11) V Co
e o0
RL 10k
2V P P
CI
1/4 LM290 2
2V P P
eI ~
V CC
R2 100k
RB 6.2k R3 100k
RB 6.2k
eI ~
R3 1M
R4 100k
C1 10 F
V CC
C2 10 F R5 100k
7/14
LM2902
TYPICAL SINGLE - SUPPLY APPLICATIONS NON-INVERTING DC GAIN DC SUMMING AMPLIFIER
e1
100k
AV= 1 +
R2 R1
10k 1/4 LM2902
eO +5V
(As s hown AV = 101)
100k e2 100k 100k
1/4 LM2902
eO
R2 1M R1 10k
e O (V)
e3
100k
0 e I (mV)
e4
100k
eo = e1 + e2 - e3 - e4 where (e 1 + e2) (e3 + e4) to keep eo 0V
HIGH INPUT Z ADJUSTABLE GAIN DC INSTRUMENTATION AMPLIFIER
LOW DRIFT PEAK DETECTOR
R1 100k
IB R3 100k R4 100k eI 1/4 LM2902
eO
1/4 1/4 LM2902
e1
1/4 LM2902
IB LM2902 1 F
eo
C
*
2IB
Zo
0.001 F
ZI
2IB
R 1M
R2 2k
G ain adjus t
2N 929
R5 100k
IB
3R 3M
1/4 LM2902
1/4 LM2902
e
2
R6 100k
R7 100k
IB
Input curre nt compe ns a tion
* P olyca rbona te or polyethylene
if R1 = R5 and R3 = R4 = R6 = R7 2R1 eo = [ 1+ ] (e2 - e1) R2 As shown eo = 101 (e2 - e1).
8/14
LM2902
TYPICAL SINGLE - SUPPLY APPLICATIONS ACTIVER BANDPASS FILTER HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER
R1 100k
C1 330pF
R1 R 4 = R2 R3 (CMRR depends on this resistor ratio match) For
1/4 LM2902
e1 R4 10M C2 330pF
R5 470k
1/4 LM2902
R2 100k R1 100k
1/4 LM29 02
eO
R4 100k R3 100k
1/4 LM29 0 2
R3 10k 1/4 LM2902
R6 470k
R7 100k V CC R8 100k C3 10 F
+V1 +V2
Vo
R4 ) (e2- e1) R3 As shown eo = (e2 - e 1) eo (1+
FO = 1kHz Q = 50 AV = 100 (40dB)
USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT (GENERAL CONCEPT)
II eI IB
IB LM2902
1/4
eo
2N 929
0.001 F
IB
IB
3M
1/4 LM2902
1.5M
IB
Aux. a mplifier for input current compe ns a tion
9/14
LM2902
.LARGEVOLTAGEGAI .VERY .LOWI .LOWI
Applies to : LM2902
N : 100dB LOW SUPPLY CURRENT/AMPLI :
375A NPUT BIAS CURRENT : 20nA NPUT OFFSET VOLTAGE : 2mV
.LOWI .WI
NPUT OFFSET CURRENT : 2nA DE POWER SUPPLY RANGE : SINGLE SUPPLY : +3V to +30V DUAL SUPPLIES : 1.5V to 15V
** 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
10/14
LM2902
ELECTRICAL CHARACTERISTICS VCC+ = +5V, VCC- = 0V, Tamb = 25oC (unless otherwise specified)
Symbol Vio Avd ICC Vicm VOH VOL IOS GBP SR RL = 2k (VCC = 15V) RL = 10k VO = +2V, VCC = +15V RL = 2k, CL = 100pF RL = 2k, CL = 100pF
+
Conditions RL = 2k No load, per operator
Value 0 100 350 -15 to +13.5 +13.5 5 +40 1.3 0.4
Unit mV V/mV A V V mV mA MHz V/s
11/14
LM2902
PACKAGE MECHANICAL DATA 14 PINS - PLASTIC DIP
Dimensions a1 B b b1 D E e e3 F i L Z
Min. 0.51 1.39
Millimeters Typ.
Max. 1.65
Min. 0.020 0.055
Inches Typ.
Max. 0.065
0.5 0.25 20 8.5 2.54 15.24 7.1 5.1 3.3 1.27 2.54 0.050
0.020 0.010 0.787 0.335 0.100 0.600 0.280 0.201 0.130 0.100
DIP14.TBL
12/14
PM-DIP14.EPS
LM2902
PACKAGE MECHANICAL DATA 14 PINS - PLASTIC MICROPACKAGE (SO)
Dimensions A a1 a2 b b1 C c1 D E e e3 F G L M S
Min. 0.1 0.35 0.19
Millimeters Typ.
Max. 1.75 0.2 1.6 0.46 0.25 45 (typ.)
o
Min. 0.004 0.014 0.007
Inches Typ.
Max. 0.069 0.008 0.063 0.018 0.010
0.5 8.55 5.8 1.27 7.62 3.8 4.6 0.5 4.0 5.3 1.27 0.68 8 (max.)
o
0.020 8.75 6.2 0.336 0.228 0.050 0.300 0.150 0.181 0.020 0.157 0.208 0.050 0.027 0.334 0.244
13/14
SO14.TBL
PM-SO14.EPS
LM2902
PACKAGE MECHANICAL DATA 14 PINS - THIN SHRINK SMALL OUTLINE PACKAGE
Dim. A A1 A2 b c D E E1 e k l
Millimeters Min. 0.05 0.80 0.19 0.09 4.90 4.30 0o 0.50 0.60 5.00 6.40 4.40 0.65 8o 0.75 0o 0.09 4.50 0.169 1.00 Typ. Max. 1.20 0.15 1.05 0.30 0.20 5.10 Min. 0.01 0.031 0.007 0.003 0.192
Inches Typ. Max. 0.05 0.006 0.039 0.041 0.15 0.012 0.196 0.252 0.173 0.025 8o 0.0236 0.030 0.177 0.20
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 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 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. (c) The ST logo is a trademark of STMicroelectronics (c) 1998 STMicroelectronics - Printed in Italy - All Rights Reserved STMicroelectronics GROUP OF COMPANIES Australia - Brazil - Canada - China - France - Germany - Italy - Japan - Korea - Malaysia - Malta - Mexico - Morocco The Netherlands - Singapore - Spain - Sweden - Switzerland - Taiwan - Thailand - United Kingdom - U.S.A.
ORDER CODE :
14/14

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