lm2902.pdf
TRANSCRIPT
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n WIDE GAIN BANDWIDTH: 1.3MHz n INPUT COMMON-MODE VOLTAGE RANGE
INCLUDES GROUNDn LARGE VOLTAGE GAIN: 100dBn VERY LOW SUPPLY CURRENT/AMPLI:
375An LOW INPUT BIAS CURRENT: 20nAn LOW INPUT OFFSET CURRENT:2nAn WIDE POWER SUPPLY RANGE:
SINGLE SUPPLY: +3V TO +30VDUAL SUPPLIES: 1.5V TO 15V
DESCRIPTION This circuit consists of four independent, highgain, 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 rangeof voltages. Operation from split power supplies isalso possible and the low power supply currentdrain 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
N D PLM2902 -40C, +125C
NDIP14
(Plastic Package)
DSO14
(Plastic Micropackage)
PTSSOP14
(Thin Shrink Small Outline Package)
Inverting Input 2
Non-inverting Input 2
Non-inverting Input 1
CCV -CCV
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
LM2902
LOW POWER QUAD OPERATIONAL AMPLIFIER
November 2001
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LM2902
2/11
SCHEMATIC DIAGRAM (1/4 LM2902)
ABSOLUTE MAXIMUM RATINGS Symbol Parameter Value Unit
VCC Supply Voltage 16 to 32 VVid Differential Input Voltage +32 VVI Input Voltage -0.3 to +32 V
Output Short-circuit to Ground 1)
1. Short-circuit from the output to VCCcan cause excessive heating if VCC > 15V. The maximum output current is approximately 40mA independent ofthe magnitude of VCC. Destructive dissipation can result from simultaneous short-circuit on all amplifiers.
Infinite
ptotPower Dissipation N Suffix D Suffix
500400 mW
Iin 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 PNPtransistor becoming forward biased and thereby acting as input diodes clamps. In addition to this diode action, there is also NPN parasitic action onthe IC chip. This transistor action can cause the output voltages of the Op-Amps to go to the VCC 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 mAToper Operating Free-Air Temperature Range -40 to +125 CTstg Storage Temperature Range -65 to +150 C
6A 4A 100A
Q2 Q3Q4Q1
Invertinginput
Non-invertinginput
Q8 Q9
Q10
Q11
Q12
50mA
Q13
Output
Q7
Q6Q5
R SC
VCC
C C
GND
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LM2902
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ELECTRICAL CHARACTERISTICSVCC+ = 5V, Vcc- = Ground, VO = 1.4V, Tamb = 25C (unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
VioInput Offset Voltage 1)
Tamb = +25C Tmin Tamb Tmax.
2 79
mV
IioInput Offset Current
Tamb = +25C Tmin Tamb Tmax.
2 3040
nA
IibInput Bias Current 2)
Tamb = +25C Tmin Tamb Tmax.
20 150300
nA
Avd
Large Signal Voltage GainVCC+ = +15V,RL=2k, Vo = 1.4V to 11.4VTamb = +25C Tmin Tamb Tmax.
5025
100 V/mV
SVRSupply Voltage Rejection Ratio (RS 10k)
Tamb = +25C Tmin Tamb Tmax.
6565
110 dB
Icc
Supply Current, all Amp, no loadTamb = +25C VCC = +5V
VCC = +30VTmin Tamb Tmax. VCC = +5V
VCC = +30V
0.71.50.81.5
1.23
1.23
mA
VicmInput Common Mode Voltage Range (Vcc= +30V)3)
Tamb = +25C Tmin Tamb Tmax.
00
VCC -1.5VCC -2
V
CMRCommon-mode Rejection Ratio (RS 10k)
Tamb = +25C Tmin Tamb Tmax.
7060
80 dB
IOOutput Short-circuit Current (Vid = +1V)
VCC = +15V, Vo = +2V 20 40 70mA
IsinkOutput Sink Current (Vid = -1V) VCC = +15V, Vo = +2V
VCC = +15V, Vo = +0.2V1012
2050
mAA
VOH
High Level Output Voltage (Vcc + 30V)Tamb = +25C RL = 2kTmin Tamb Tmax. Tamb = +25C RL = 10kTmin Tamb Tmax.
(Vcc + 5V), RL = 2kTmin Tamb Tmax. Tamb = +25C
26262727
3.53
27
28V
VOLLow Level Output Voltage (RL = 10k)
Tamb = +25C Tmin Tamb Tmax
5 2020
mV
SRSlew Rate
Vcc = 15V, Vi = 0.5 to 3V, RL = 2k, CL = 100pF,unity gain 0.4
V/s
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LM2902
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GBP Gain Bandwidth ProductVcc = 30V,Vin = 10mV, RL = 2k, CL = 100pF 1.3 MHz
THDTotal Harmonic Distortion
f = 1kHz, AV = 20dB, RL = 2k, Vo = 2Vpp,CL = 100pF, Vcc = 30V 0.015
%
enEquivalent Input Noise Voltage
f = 1kHz, RS = 100, Vcc = 30V 40
DVio Input Offset Voltage Drift 7 30 V/CDIio Input Offset Current Drift 10 200 pA/C
VO1/VO2 Channel Separation 4)
1kHz f 20kHz 120 dB
1. VO = 1.4V, RS = 0, 5V < VCC+ < 30V, 0V < Vic < VCC+ - 1.5V2. The direction of the input current is out of the IC. This current is essentially constant, independent of the state of the output, so no loading charge
change exists on the input lines3. The input common-mode voltage of either input signal voltage should not be allowed to go negative by more than 0.3V. The upper end of the
common-mode voltage range is VCC+ 1.5V, 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 external parts. This typically
can be detected as this type of capacitance increases at higher frequences.
Symbol Parameter Min. Typ. Max. Unit
nVHz
------------
-55-35-15 5 25 45 65 85 105 125AMBIENT TEMPERATURE (C)
24211815
912
630
INPUT BIAS CURRENTversus AMBIENT TEMPERATURE
IB (nA)
OUT
PUT
CURR
ENT
(mA)
CURRENT LIMITING (Note 1)
-
+
IO
TEMPERATURE (C)
90
80
70
60
50
40
30
20
10
0-55 -35 -15 5 25 45 65 85 105 125
INPU
T VO
LTAG
E (V
)
INPUT VOLTAGE RANGE
0 5 10 15
POWER SUPPLY VOLTAGE (V)
Ngative
Positive
15
10
5
SUPP
LY C
URRE
NT (m
A)
SUPPLY CURRENT
0 10 20 30
Tamb = -55C
VCC
mA ID
-
+
Tamb = 0C to +125C
POSITIVE SUPPLY VOLTAGE (V)
4
3
2
1
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LM2902
5/11
-55-35-15 5 25 45 65 85 105 125AMBIENT TEMPERATURE (C)GA
IN B
ANDW
IDTH
PRO
DUCT
(MHz
) 1.351.301.25 1.21.15
1.05 1.1
1-95
-9
GAIN BANDWIDTH PRODUCTGBP (mhz)
COMMON MODE REJECTION RATIO
FREQUENCY (Hz)
120
100
80
60
40
20
0
100 1K 10K 100K 1M
COM
MO
NM
ODE
REJ
ECTI
ON
RAT
IO(dB
)
100
100k
+7.5V
-
+eI
100k
100
+7.5V
eO
VOLT
AGE
GAI
N(dB
)
OPEN LOOP FREQUENCY RESPONSE (NOTE 3)
1.0 10 100 1k 10k 100k 1M 10M
VCC = +10 to + 15V &
FREQUENCY (Hz)
10M
VIVCC/2
VCC = 30V &
0.1FVCC
VO-
+
-55C Tamb +125C
140
120
100
80
60
40
20
0
-55C Tamb +125C
LARGE SIGNAL FREQUENCY RESPONSE
FREQUENCY (Hz)1k 10k 100k 1M
OUT
PUT
SWIN
G(V
pp)
+7V 2k
1k 100k
+15VVO
-
+
VI
20
15
10
5
0
INPU
TVO
LTAG
E(V
)O
UTPU
TVO
LTAG
E(V
)
VOLAGE FOLLOWER PULSE RESPONSE
0 10 20 30 40
TIME ( s)
RL 2 kVCC = +15V
4
3
2
1
0
3
2
1
OUTPUT CHARACTERISTICS
OUTPUT SINK CURRENT (mA)0,001 0,01 0,1 1 10 100
OUT
PUT
VOLT
AGE
(V)
VCC = +5VVCC = +15VVCC = +30V
-
IO
VO
Tamb = +25C
vcc/2vcc
+
10
1
0.1
0.01O
UTP
UT
VOLT
AGE
(mV)
VOLTAGE FOLLOWER PULSSE RESPONSE(SMALL SIGNAL)
0 1 2 3 4 5 6 7 8
Input
Tamb = +25CVCC = 30 V
Output
eOel 50pF
+
-
TIME (s)
500
450
400
350
300
250
OUT
PUT
VOLT
AGE
REFE
RENC
EDTO
VCC
+ (V
)
OUTPUT CHARACTERISTICS
0,01 0,1 1 10 1000,001
Independent of VCC
Tamb = +25C
+
-
VCC
VO
IO
VCC /2
OUTPUT SOURCE CURRENT (mA)
8
7
6
5
4
3
2
1
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LM2902
6/11
TYPICAL SINGLE - SUPPLY APPLICATIONSAC COUPLED INVERTING AMPLIFIER
AC COUPLED NON-INVERTING AMPLIFIER
NON-INVERTING DC GAIN
0 10 20 30POSITIVE SUPPLY VOLTAGE (V)
INPU
T CU
RREN
T (nA
)
100
75
50
25
ambT = +25C
0 10 20 30POSITIVE SUPPLY VOLTAGE (V)
VOLT
AGE
GAI
N(dB
)
160
120
80
40
LR = 20k
LR = 2k
-55-35-15 5 25 45 65 85 105 125AMBIENT TEMPERATURE (C)
POW
ER S
UPPL
Y &
COM
MO
N M
ODE
REJ
ECTI
ON
RATI
O (d
B)
120115110105100
9095
858075
POWER SUPPLY & COMMON MODEREJECTION RATIO
(dB)
70
SVR
CMR
-55-35-15 5 25 45 65 85 105 125AMBIENT TEMPERATURE (C)LA
RG
E SI
GNA
L VO
LTAG
E G
AIN 120
115
110
105
100
LARGE SIGNAL VOLTAGE GAINAvd (dB)
-55
1/4LM2902
~
0 2VPP
R10k
L
Co
eo
R6.2k
B
R100k
f
R110kCI
eI
VCCR2
100k
C110F
R3100k
A = -RR1V
f
(as shown A = -10)V
1/4LM2902
~
0 2VPP
R10k
L
Co
eo
R6.2k
B
C10.1F
eI
VCC
(as shown A = 11)VA = 1 +R2
R1V
R1100k
R21M
CI
R31M
R4100k
R5100k
C210F
R110k
R21M
1/4LM2902
10k
eI
eO +5V
eO
(V)
(mV)0
AV= 1 +R2R1
(As shown = 101)AV
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LM2902
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DC SUMMING AMPLIFIER
HIGH INPUT Z ADJUSTABLE GAIN DCINSTRUMENTATION AMPLIFIER
LOW DRIFT PEAK DETECTOR
ACTIVER BADPASS FILTER
HIGH INPUT Z, DC DIFFERENTIAL AMPLIFIER
USING SYMMETRICAL AMPLIFIERS TO REDUCE INPUT CURRENT (GENERAL CONCEPT)
1/4LM2902
eO
e 4
e 3
e 2
e 1 100k
100k
100k
100k
100k
100k
eo = e1 + e2 - e3 - e4where (e1 + e2) (e3 + e4)to keep eo 0V
R3100k
eO
R1100k
e 1
1/4LM2902
R7100k
R6100k
R5100k
e 2
R22k
Gain adjust
R4100k1/4
LM2902
1/4LM2902
If R1 = R5 and R3 = R4 = R6 = R7eo = [ 1 + ] (e2 - e1)As shown eo = 101 (e2 - e1)
2R1R2
IB
2N 929 0.001F
IB
3R3M
IBInput currentcompensation
eo
IB
e I
1/4LM2902 Zo
ZI
C1F
2IB
R1M
2IB
* Polycarbonate or polyethylene
*
1/4LM2902
1/4LM2902
R310k
1/4LM2902
e 1
eO
R8100k
R7100k
C310F
VCC
R5470k
C2330pF
R410M
R6470k
R1100k
C1330pF
1/4LM2902
1/4LM2902
Fo = 1kHzQ = 50Av = 100 (40dB)
1/4LM2902
R1100k
R2100k
R4100k
R3100k
+V2+V1 Vo
1/4LM2902
eo = [ 1 + ] (e2 - e1)As shown eo = (e2 - e1)
R4R3
1/4LM2902
IB
2N 929
0.001 F
IB
3M
IB
eoI Ie I
IB
IB
Aux. amplifier for inputcurrent compensation
1.5M
1/4LM2902
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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-15CJO=10F* INPUT STAGECIP 2 5 1.000000E-12CIN 1 5 1.000000E-12EIP 10 5 2 5 1EIN 16 5 1 5 1RIP 10 11 2.600000E+01RIN 15 16 2.600000E+01RIS 11 15 2.003862E+02DIP 11 12 MDTH 400E-12DIN 15 14 MDTH 400E-12VOFP 12 13 DC 0 VOFN 13 14 DC 0IPOL 13 5 1.000000E-05CPS 11 15 3.783376E-09DINN 17 13 MDTH 400E-12
VIN 17 5 0.000000e+00DINR 15 18 MDTH 400E-12VIP 4 18 2.000000E+00FCP 4 5 VOFP 3.400000E+01FCN 5 4 VOFN 3.400000E+01FIBP 2 5 VOFN 2.000000E-03FIBN 5 1 VOFP 2.000000E-03* AMPLIFYING STAGEFIP 5 19 VOFP 3.600000E+02FIN 5 19 VOFN 3.600000E+02RG1 19 5 3.652997E+06RG2 19 4 3.652997E+06CC 19 5 6.000000E-09DOPM 19 22 MDTH 400E-12DONM 21 19 MDTH 400E-12HOPM 22 28 VOUT 7.500000E+03VIPM 28 4 1.500000E+02HONM 21 27 VOUT 7.500000E+03VINM 5 27 1.500000E+02EOUT 26 23 19 5 1VOUT 23 5 0ROUT 26 3 20COUT 3 5 1.000000E-12DOP 19 25 MDTH 400E-12VOP 4 25 2.242230E+00DON 24 19 MDTH 400E-12VON 24 5 7.922301E-01.ENDS
ELECTRICAL CHARACTERISTICSVCC+ = 5V, VCC- = 0V, Tamb = 25C (unless otherwise specified)
Symbol Conditions Value UnitVio 0 mVAvd RL = 2k 100 V/mVICC No load, per operator 350 AVicm -15 to +13.5 VVOH RL = 2k (VCC+ = 15V) +13.5 VVOL RL = 2k 5 mVIos VO = +2V, VCC = +15V +40 mA
GBP RL = 2k, CL = 100pF 1.3 MHzSR RL = 2k, CL = 100pF 0.4 V/s
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LM2902
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PACKAGE MECHANICAL DATA14 PINS - PLASTIC DIP
DimensionsMillimeters Inches
Min. Typ. Max. Min. Typ. Max.a1 0.51 0.020B 1.39 1.65 0.055 0.065b 0.5 0.020b1 0.25 0.010D 20 0.787E 8.5 0.335e 2.54 0.100e3 15.24 0.600F 7.1 0.280i 5.1 0.201L 3.3 0.130Z 1.27 2.54 0.050 0.100
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LM2902
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PACKAGE MECHANICAL DATA14 PINS - PLASTIC MICROPACKAGE (SO)
DimensionsMillimeters Inches
Min. Typ. Max. Min. Typ. Max.A 1.75 0.069a1 0.1 0.2 0.004 0.008a2 1.6 0.063b 0.35 0.46 0.014 0.018b1 0.19 0.25 0.007 0.010C 0.5 0.020c1 45 (typ.)
D (1) 8.55 8.75 0.336 0.344E 5.8 6.2 0.228 0.244e 1.27 0.050e3 7.62 0.300
F (1) 3.8 4.0 0.150 0.157G 4.6 5.3 0.181 0.208L 0.5 1.27 0.020 0.050M 0.68 0.027S 8 (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
be3
e
E
L G
C c1
Aa2
a1 b1s
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LM2902
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PACKAGE MECHANICAL DATA14 PINS -THIN SHRINK SMALL OUTLINE PACKAGE (TSSOP)
DimensionsMillimeters Inches
Min. Typ. Max. Min. Typ. Max.A 1.20 0.05A1 0.05 0.15 0.01 0.006A2 0.80 1.00 1.05 0.031 0.039 0.041b 0.19 0.30 0.007 0.15c 0.09 0.20 0.003 0.012D 4.90 5.00 5.10 0.192 0.196 0.20E 6.40 0.252E1 4.30 4.40 4.50 0.169 0.173 0.177e 0.65 0.025k 0 8 0 8L 0.450 0.600 0.750 0.018 0.024 0.030L1 1.00 0.039aaa 0.100 0.004
c
E1
k
L
E
eb
D
PIN 1 IDENTIFICATION
1
78
14SE
ATING
PLAN
E
C
aaa
C
0,25 mm.010 inch
GAGE PLANE
L1
AA2
A1
Information furnished is believed to be accurate and reliable. However, STMicroelectronics assumes no responsibility for theconsequences of use of such information nor for any infringement of patents or other rights of third parties which may result fromits use. No license is granted by implication or otherwise under any patent or patent rights of STMicroelectronics. Specificationsmentioned in this publication are subject to change without notice. This publication supersedes and replaces all informationpreviously supplied. STMicroelectronics products are not authorized for use as critical components in life support devices orsystems without express written approval of STMicroelectronics.
The ST logo is a registered trademark of STMicroelectronics
2001 STMicroelectronics - Printed in Italy - All Rights ReservedSTMicroelectronics GROUP OF COMPANIES
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-
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