February 2012 Doc ID 9922 Rev 8 1/17
17
LM2902W
Low-power quad operational amplifier
Features
■Wide gain bandwidth: 1.3 MHz
■Input common-mode voltage range includes
negative rail
■Large voltage gain: 100 dB
■Very low supply current per amplifier: 375 µA
■Low input bias current: 20 nA
■Low input offset current: 2 nA
■ESD internal protection: 800 V
■Wide power supply range
■Single supply: +3 V to +30 V
■Dual supplies: ±1.5 V to ±15 V
Description
This circuit consists of four independent, high-
gain, internally frequency-compensated
operational amplifiers designed especially for
automotive and industrial control systems.
The device 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.
All the pins are protected against electrostatic
discharges up to 800 V.
N
DIP14
(Plastic package)
D
SO-14
(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
Pin connections (top view)
www.st.com
Absolute maximum ratings and operating conditions LM2902W
2/17 Doc ID 9922 Rev 8
1 Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol Parameter Value Unit
VCC Supply voltage ±16 to 32 V
Vid Differential input voltage +32 V
ViInput voltage -0.3 to VCC+ + 0.3 V
Output short-circuit to ground (1)
1. Short-circuits from the output to VCC+ can cause excessive heating and potential destruction. The
maximum output current is approximately 20 mA, independent of the magnitude of VCC+
Infinite
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 PNP transistor becoming forward biased and thereby acting as input
diode 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 VCC 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 higher than -0.3 V.
50 mA
Tstg Storage temperature range -65 to +150 °C
Rthja
Thermal resistance junction to ambient(3)
SO-14
TSSOP14
DIP14
3. Rthja/c are typical values.
105
100
80
°C/W
Rthjc
Thermal resistance junction to case(3)
SO-14
TSSOP14
DIP14
31
32
33
°C/W
ESD
HBM: human body model(4)
4. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a
1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations
while the other pins are floating.
800 V
MM: machine model(5)
5. 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 < 5Ω). This is done for all couples of
connected pin combinations while the other pins are floating.
100 V
CDM: charged device model(6)
6. 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.
1500 V
Table 2. Operating conditions
Symbol Parameter Value Unit
VCC Supply voltage 3 to 30 V
Vicm
Common mode input voltage range
Tmin ≤ Tamb ≤ Tmax
VCC- to VCC+ - 1.5
VCC- to VCC+- 2 V
Toper Operating free-air temperature range -40 to +125 °C
LM2902W Circuit schematics
Doc ID 9922 Rev 8 3/17
2 Circuit schematics
Figure 1. Schematic diagram (1/4 LM2902)
Electrical characteristics LM2902W
4/17 Doc ID 9922 Rev 8
3 Electrical characteristics
Table 3. VCC+=5V, V
CC-= ground, VO= 1.4 V, Tamb= 25° C
(unless otherwise stated)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Vi o Input offset voltage (1)
LM2902W
LM2902AW
27
2mV
Tmin ≤ Tamb ≤ Tmax LM2902W
Tmin ≤ Tamb ≤ Tmax LM2902AW
9
4
DVio Input offset voltage drift 7 30 µV/°C
Iio Input offset current Tamb = +25°C 2 30 nA
Tmin ≤ Tamb ≤ Tmax 40
DIio Input offset current drift 10 200 pA/°C
Iib Input bias current(2) Tamb = +25°C 20 150 nA
Tmin ≤ Tamb ≤ Tmax 300
Avd Large signal voltage gain
VCC+= +15V, RL=2kΩ,
Vo= 1.4V to 11.4V, Tamb = + 25°C 50 100
V/mV
VCC+= +15V, RL=2kΩ,
Vo= 1.4V to 11.4V,
Tmin ≤ Tamb ≤ Tmax
25
SVR Supply voltage rejection ratio RS ≤ 10kΩ, Tamb =+ 25°C 65 110 dB
RS ≤ 10kΩ, Tmin ≤ Tamb ≤ Tmax 65
ICC Supply current
(all op-amps, no load)
Tamb = +25°C, VCC+ = +5V 0.7 1.2
mA
Tamb = +25°C, VCC+ = +30V 1.5 3
Tmin ≤ Tamb ≤ Tmax, VCC+ = +5V 0.9 1.2
Tmin ≤ Tamb ≤ Tmax, VCC+ = +30V 1.5 3
CMR Common-mode rejection ratio RS ≤ 10kΩ, Tamb = +25°C 70 80 dB
RS ≤ 10kΩ, Tmin ≤ Tamb ≤ Tmax 60
IoOutput short-circuit current Vid = +1V, VCC+ = +15V, Vo = +2V 20 40 70 mA
Isink Output sink current Vid = -1V, VCC+ = +15V, Vo = +2V 10 20 mA
Vid = -1V, VCC+ = +15V, Vo = +0.2V 12 50 µA
VOH High level output voltage
VCC+ = 30V, RL = 2kΩ:
Tamb = +25°C
Tmin ≤ Tamb ≤ Tmax
26
26
27
V
VCC+ = 30V, RL = 10kΩ:
Tamb = +25°C,
Tmin ≤ Tamb ≤ Tmax
27
27
28
VCC+ = 5V, RL = 2kΩ:
Tamb = +25°C
Tmin ≤ T
amb ≤ T
max
3.5
3
LM2902W Electrical characteristics
Doc ID 9922 Rev 8 5/17
VOL Low level output voltage RL = 10kΩ, Tamb = +25°C 5 20 mV
RL = 10kΩ, Tmin ≤ Tamb ≤ T
max 20
SR Slew rate
VCC+ = 15V, Vin = 0.5 to 3V,
RL=2kΩ, CL= 100pF, unity gain
Tmin < Top < Tmax
0.24
0.14
0.4 V/µs
GBP Gain bandwidth product VCC+ = 30V, Vin = 10mV, RL=2kΩ,
CL= 100pF 1.3 MHz
THD Total harmonic distortion f=1kHz, A
V = 20dB, RL=2kΩ,
Vo=2V
pp, CL= 100pF, VCC+= 30V 0.015 %
enEquivalent input noise voltage f = 1kHz, RS= 100Ω, VCC+ = 30V 40 nV/√Hz
VO1/VO2 Channel separation (3) 1kHz ≤ f ≤ 20kHz 120 dB
1. VO = 1.4 V, RS = 0 Ω, 5 V < VCC+ < 30 V, 0 V < Vic < VCC+ - 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 output,
so there is no change in the load on the input lines.
3. Due to the proximity of external components ensure that stray capacitance does not cause coupling between these
external parts. This typically can be detected as this type of capacitance increases at higher frequencies.
Table 3. VCC+=5V, V
CC-= ground, VO= 1.4 V, Tamb= 25° C
(unless otherwise stated) (continued)
Symbol Parameter Test conditions Min. Typ. Max. Unit
Electrical characteristics LM2902W
6/17 Doc ID 9922 Rev 8
Figure 2. Input bias current vs. Tamb Figure 3. Input voltage range
-55-35-15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (°C)
24
21
18
15
9
12
6
3
0
IB (nA)
INPUT VOLTAGE (V)
051015
POWER SUPPLY VOLTAGE (±V)
Négative
Positive
15
10
5
Figure 4. Current limiting Figure 5. Supply current
OUTPUT CURRENT (mA)
-
+
IO
TEMPERATURE (°C)
90
80
70
60
50
40
30
20
10
0
-55 -35 -15 5 25 45 65 85 105 125
SUPPLY CURRENT (mA)
0102030
Tamb = -55°C
VCC
mA ID
-
+
Tamb = 0°C to +125°C
POSITIVE SUPPLY VOLTAGE (V)
4
3
2
1
Figure 6. Gain bandwidth product Figure 7. Voltage follower pulse response
(VCC = 15 V)
-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
GBP (mhz)
INPUT
VOLTAGE (V)
OUTPUT
VOLTAGE (V)
010203040
TIME(
μ
s)
RL 2 kΩ
VCC = +15V
4
3
2
1
0
3
2
1
LM2902W Electrical characteristics
Doc ID 9922 Rev 8 7/17
Figure 8. Common-mode rejection ratio Figure 9. Output characteristics (sink)
FREQUENCY (Hz)
120
100
80
60
40
20
0
100 1K 10K 100K 1M
COMMON MODE REJECTION RATIO (dB)
100 Ω
100kΩ
+7.5V
-
+
eI
100kΩ
100 Ω
+7.5V
eO
OUTPUT SINK CURRENT (mA)
0,001 0,01 0,1 1 10 10
0
OUTPUT VOLTAGE (V)
VCC = +5V
VCC = +15V
VCC = +30V
-
IO
VO
Tamb = +25°C
vcc/2
vcc
+
10
1
0.1
0.01
Figure 10. Open-loop frequency response Figure 11. Voltage follower pulse response
(VCC = 30 V)
VOLTAGE GAIN (dB)
1.0 10 100 1k 10k 100k 1M 10M
VCC = +10 to + 15V &
FREQUENCY (Hz)
10M Ω
VI
VCC/2
VCC = 30V &
0.1μF
VCC VO
-
+
-55°C Tamb +125°C
140
120
100
80
60
40
20
0
-55°C Tamb +125°C
OUTPUT VOLTAGE (mV)
012345678
Input
Tamb =+25°C
VCC =30V
Output
eO
el50pF
+
-
TIME (
μ
s)
500
450
400
350
300
250
Figure 12. Large signal frequency response Figure 13. Output characteristics (source)
FREQUENCY (Hz)
1k 10k 100k 1M
OUTPUT SWING (Vpp)
+7V 2k Ω
1k Ω
100k Ω
+15V
VO
-
+
VI
20
15
10
5
0
OUTPUT VOLTAGE REFERENCED
TO V
CC+ (V)
0,01 0,1 1 10 100
0,001
Independent of VCC
Tamb = +25°C
+
-
VCC
VO
IO
VCC /2
OUTPUT SOURCE CURRENT (mA)
8
7
6
5
4
3
2
1
Electrical characteristics LM2902W
8/17 Doc ID 9922 Rev 8
Figure 14. Input current Figure 15. Voltage gain
0 10 20 30
POSITIVE SUPPLY 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 Ω
L
R=2k
Ω
Figure 16. Power supply and common-mode
rejection ratio
Figure 17. Large signal voltage gain
-55-35-15 5 25 45 65 85 105 125
AMBIENT TEMPERATURE (°C)
LARGE SIGNAL VOLTAGE GAIN
120
115
110
105
100
-55
LM2902W Typical single-supply applications
Doc ID 9922 Rev 8 9/17
4 Typical single-supply applications
Figure 18. AC coupled inverting amplifier Figure 19. AC coupled non-inverting amplifier
1/4
LM2902
~
0
2V
PP
R
10 kΩ
L
C
o
e
o
R
6.2 kΩ
B
R
100 k
Ω
f
R1
10 kΩ
C
I
e
I
V
CC
R2
100 k
Ω
C1
10 μF
R3
100 k
Ω
A=-
R
R1
V
f
(as shown A = -10)
V
1/4
LM2902
~
0
2 V
PP
R
10 kΩ
L
C
o
e
o
R
6.2 k
Ω
B
C1
0.1 μF
e
I
V
CC
(as shown A = 11)
V
A=1+
R2
R1
V
R1
100 k
Ω
R2
1 M
Ω
C
I
R3
1 MΩR4
100 k
Ω
R5
100 k
Ω
C2
10
μF
Figure 20. Non-inverting DC gain Figure 21. DC summing amplifier
R1
10 k
Ω
R2
1 M
Ω
1/4
LM2902
10 k
Ω
e
I
e
O
+5 V
e
O
(V)
(mV)
0
A
V
=1+ R2
R1
(Asshown = 101)
A
V
1/4
LM2902
eO
e4
e3
e2
e1100 k
Ω
100 k
Ω
100 k
Ω
100 k
Ω
100 k
Ω
100 k
Ω
eo = e1 + e2 - e3 - e4
where (e1 + e2) (e3 + e4)
to keep eo 0 V
≥
≥
Figure 22. Active bandpass filter Figure 23. High input Z adjustable gain DC
instrumentation amplifier
R3
10 k
Ω
1/4
LM2902
e
1
e
O
R8
100 k
Ω
R7
100 k
Ω
C3
10 μF
V
CC
R5
470 kΩ
C2
330 pF
R4
10 M
Ω
R6
470 kΩ
R1
100 k
Ω
C1
330 pF
1/4
LM2902
1/4
LM2902
Fo = 1 kHz
Q = 50
Av = 100 (40 dB)
R3
100 k
Ω
e
O
R1
100 k
Ω
e
1
1/4
LM2902
R7
100 k
Ω
R6
100 k
Ω
R5
100 k
Ω
e
2
R2
2 k
Ω
Gain adjust
R4
100 k
Ω
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
Typical single-supply applications LM2902W
10/17 Doc ID 9922 Rev 8
Figure 24. High input Z, DC differential
amplifier
Figure 25. Low drift peak detector
Figure 26. Using symmetrical amplifiers to
reduce input current (general
concept)
1/4
LM2902
R1
100 k
Ω
R2
100 k
Ω
R4
100 k
Ω
R3
100 k
Ω
+V2
+V1
V
o
1/4
LM2902
eo = [ 1 + ] (e2 - e1)
As shown eo = (e2 - e1)
R4
R3
I
B
2N 929
0.00
1 μF
I
B
3R
3 M
Ω
I
B
Inputcurrent
compensation
e
o
I
B
e
I
1/4
LM2902
Z
o
Z
I
C
1 μF
2I
B
R
1 M
Ω
2I
B
* Polycarbonate or polyethylene
*
1/4
LM2902
1/4
LM2902
1/4
LM2902
I
B
2N 929
0.001 μF
I
B
3 M
Ω
I
B
e
o
I
I
e
I
I
B
I
B
Aux. amplifier for input
current compensation
1.5 M
Ω
1/4
LM2902
LM2902W Macromodel
Doc ID 9922 Rev 8 11/17
5 Macromodel
An accurate macromodel of the LM2902W 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 LM2902W operational amplifiers. 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.
Package information LM2902W
12/17 Doc ID 9922 Rev 8
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.
6.1 DIP14 package information
Figure 27. DIP14 package mechanical drawing
Table 4. DIP14 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
a1 0.51 0.020
B 1.39 1.65 0.055 0.065
b0.5 0.020
b1 0.25 0.010
D200.787
E8.5 0.335
e 2.54 0.100
e3 15.24 0.600
F 7.1 0.280
I 5.1 0.201
L3.3 0.130
Z 1.27 2.54 0.050 0.100
LM2902W Package information
Doc ID 9922 Rev 8 13/17
6.2 SO-14 package information
Figure 28. SO-14 package mechanical drawing
Table 5. SO-14 package mechanical data
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A1.750.068
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
C0.5 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
M0.680.026
S 8° (max.)
Package information LM2902W
14/17 Doc ID 9922 Rev 8
6.3 TSSOP14 package information
Figure 29. TSSOP14 package mechanical drawing
Table 6. TSSOP14 package mechanical data
Ref.
Dimensions
Millimeters Inches
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°
L1 0.45 0.60 0.75 0.018 0.024 0.030
cE
b
A2
A
E1
D
1
PIN 1 IDENTIFICATION
A1 L
K
e
LM2902W Ordering information
Doc ID 9922 Rev 8 15/17
7 Ordering information
Table 7. Order codes
Order code Temperature
range Package Packing Marking
LM2902WN
-40°C to +125°C
DIP14 Tube 2902W
LM2902WD/DT SO-14
Tape & reel
2902W
LM2902WDT(1)
1. Qualification and characterization according to AEC Q100 and Q003 or equivalent, advanced screening
according to AEC Q001 & Q 002 or equivalent.
SO-14
(Automotive grade level) 2902WY
LM2902AWDT(1) SO-14
(Automotive grade level) 2902AWY
LM2902WPT TSSOP14
Tape & reel
2902W
LM2902WYPT(1) TSSOP14
(Automotive grade level) 2902WY
LM2902AWYPT(1) TSSOP14
(Automotive grade level) 2902AWY
Revision history LM2902W
16/17 Doc ID 9922 Rev 8
8 Revision history
Table 8. Document revision history
Date Revision Changes
01-Sep-2003 1 Initial release.
01-Nov-2005 2
Table data reformatted for easier use in Electrical characteristics on
page 4.
Minor grammatical and formatting changes throughout.
01-Jan-2006 3 LM2902WYPT PPAP reference inserted in order codes table, see
Section 7 on page 15.
01-May-2006 4 Minimum value of slew rate at 25°C and on full temperature range
added in Table 3 on page 4.
20-Jul-2007 5
Corrected document title to “quad operational amplifier”.
Corrected ESD value for HBM to 800V.
Corrected thermal resistance junction to ambient values in Tabl e 1:
Absolute maximum ratings.
Updated electrical characteristics curves.
Added Section 5: Macromodel.
Added automotive grade order codes in Section 7 on page 15.
15-Jan-2008 6 Corrected footnotes for automotive grade order codes.
17-Oct-2008 7 Added enhanced Vio version: LM2902AW.
Corrected VOH min parameter at Vcc=5V in Table 3 on page 4.
16-Feb-2012 8
Modified Chapter 5: Macromodel.
Deleted LM2902WYD and LM2902AWYD order codes from Ta bl e 7
and modified status of LM2902WYPT and LM2902AWYPT order
codes.
LM2902W
Doc ID 9922 Rev 8 17/17
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