This is information on a product in full production.
January 2013 Doc ID 2469 Rev 7 1/21
21
LM2902
Low-power quad operational amplifier
Datasheet − production data
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
■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
operational amplifiers which employ internal
frequency compensation and are specifically
designed 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 from
the power supply voltage magnitude.
N
DIP14
(Plastic package)
D
SO-14
(Plastic micropackage)
P
TSSOP14
(Thin shrink small outline package)
Q4
QFN16 3x3
(Plastic micropackage)
www.st.com
Contents LM2902
2/21 Doc ID 2469 Rev 7
Contents
1 Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
2 Absolute maximum ratings . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4
3 Operating conditions . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5
4 Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
5 Typical single-supply applications . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
6 ECOPACK® . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
6.1 DIP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
6.2 SO-14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
6.3 TSSOP14 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
6.4 QFN16 3 x 3 package mechanical data . . . . . . . . . . . . . . . . . . . . . . . . . . 17
7 Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
8 Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
LM2902 Schematic diagram
Doc ID 2469 Rev 7 3/21
1 Schematic diagram
Figure 1. Schematic diagram (1/4 LM2902)
Figure 2. Pin connections (top view)
1. The exposed pads of the QFN16 3x3 can be connected to VCC- or left floating.
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-invertin g Input 4
Inverting Input 4
Non-invertin g Input 3
Inverting Input 3
-
+
-
+
-
+
-
+
Output 1
Inverting Input 1
Output 2







1& 1&







,1,1
9&&9&&
,1
,1
,1,1
9&&9&&
,1
,1
287
287
,1 ,1,1
287287
287287
,1,1
1&
Absolute maximum ratings LM2902
4/21 Doc ID 2469 Rev 7
2 Absolute maximum ratings
Table 1. Absolute maximum ratings (AMR)
Symbol Parameter Value Unit
VCC Supply voltage(1) ±16 to 33
VVid Differential input voltage(2) +32
Vin Input voltage -0.3 to +32
Output short-circuit duration(3) Infinite s
TjMaximum junction temperature 150 °C
Iin
Input current(4): Vin driven negative 5 in DC or 50 in AC
(duty cycle = 10 %, T = 1 s)
mA
Input current(5): Vin driven positive above AMR
value 0.4
Tstg Storage temperature range -65 to +150 °C
Rthja
Thermal resistance junction to ambient(6)
DIP14
SO-14
TSSOP14
QFN16 3x3
80
105
100
45
°C/W
Rthjc
Thermal resistance junction to case(6)
DIP14
SO-14
TSSOP14
QFN16 3x3
33
31
32
14
ESD
HBM: human body model(7) 370 V
MM: machine model(8) 150 V
CDM: charged device model(9) 1500 V
1. All voltage values, except differential voltage are with respect to network ground terminal.
2. Differential voltages are the non-inverting input terminal with respect to the inverting input terminal.
3. Short-circuit from the output to VCC+ can cause excessive heating and eventual destruction. The maximum output current
is approximately 20 mA, independent of the magnitude of VCC+.
4. 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 clamp. In addition to this
diode action, there is 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 above -0.3 V.
5. The junction base/substrate of the input PNP transistor polarized in reverse must be protected by a resistor in series with
the inputs to limit the input current to 400 µA max (R = (Vin - 36 V)/400 µA).
6. Rthja/c are typical values.
7. Human body model: a 100 pF capacitor is charged to the specified voltage, then discharged through a 1.5 kΩ resistor
between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating.
8. 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 < 5 Ω). This is done for all couples of connected pin combinations
while the other pins are floating.
9. 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.
LM2902 Operating conditions
Doc ID 2469 Rev 7 5/21
3 Operating conditions
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+ - 1.5
VCC+ -2
Toper Operating free-air temperature range -40 to +125 °C
Electrical characteristics LM2902
6/21 Doc ID 2469 Rev 7
4 Electrical characteristics
Table 3. VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25°C
(unless otherwise specified)
Symbol Parameter Min. Typ. Max. Unit
Vio
Input offset voltage(1)
Tmin ≤ Tamb ≤ Tmax
27
9
mV
ΔVio/ΔTInput offset voltage drift 730µV/°C
Iio
Input offset current
Tmin ≤ Tamb ≤ Tmax
230
40
nA
DIio Input offset current drift 10 200 pA/°C
Iib
Input bias current(2)
Tmin ≤ Tamb ≤ Tmax
20 150
300
nA
Avd
Large signal voltage gain (VCC+ = +15 V, RL = 2 kΩ,
Vo = 1.4 V to 11.4 V)
Tmin ≤ Tamb ≤ Tmax
50
25
100 V/mV
SVR
Supply voltage rejection ratio (RS ≤ 10 kΩ)
Tmin ≤ Tamb ≤ Tmax
65
65
110 dB
Icc
Supply current, all amps, no load
VCC+ = +5 V
VCC+ = +30 V
Tmin ≤ Tamb ≤ Tmax
VCC+ = +5 V
VCC+ = +30 V
0.7
1.5
0.8
1.5
1.2
3
1.2
3
mA
CMR
Common-mode rejection ratio (RS ≤ 10 kΩ)
Tmin ≤ Tamb ≤ Tmax
70
60
80 dB
IO
Output short-circuit current (Vid = +1 V, VCC+ = +15 V,
Vo = +2 V) 20 40 70 mA
Isink
Output sink current (Vid = -1 V)
VCC+ = +15 V, Vo = +2 V
VCC+ = +15 V, Vo = +0.2 V
10
12
20
50
mA
µA
VOH
High level output voltage (VCC+ = +30 V)
RL = 2 kΩ
Tmin ≤ Tamb ≤ Tmax
RL = 10 kΩ
Tmin ≤ Tamb ≤ Tmax
VCC+ = +5 V, RL = 2 kΩ
Tmin ≤ Tamb ≤ Tmax
26
26
27
27
3
3.5
27
28 V
LM2902 Electrical characteristics
Doc ID 2469 Rev 7 7/21
VOL
Low level output voltage (RL = 10 kΩ)
Tmin ≤ Tamb ≤ Tmax
520
20
mV
SR Slew rate (VCC+ = 15 V, Vin = 0.5 to 3 V, RL = 2 kΩ,
CL = 100 pF, unity gain) 0.4 V/µs
GBP Gain bandwidth product (VCC+ = 30 V, Vin = 10 mV,
RL = 2 kΩ, CL = 100 pF) 1.3 MHz
THD Total harmonic distortion (f = 1 kHz, AV = 20 dB,
RL = 2 kΩ, Vo = 2 Vpp, CL = 100 pF, VCC+ = 30 V) 0.015 %
en
Equivalent input noise voltage (f = 1 kHz, RS = 100 Ω,
VCC+ = 30 V) 40
VO1/VO2 Channel separation(3) (1 kHz ≤ f ≤ 20 kHz) 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 loading charge on the input lines.
3. Due to the proximity of external components ensure 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, VCC- = Ground, Vo = 1.4V, Tamb = 25°C
(unless otherwise specified) (continued)
Symbol Parameter Min. Typ. Max. Unit
nV
Hz
------------
Electrical characteristics LM2902
8/21 Doc ID 2469 Rev 7
Figure 3. Input bias current vs. Tamb Figure 4. Input voltage range
Figure 5. Current limiting Figure 6. Supply current
Figure 7. Gain bandwidth product Figure 8. Voltage follower pulse response
INPUT
VOLTAGE (V)
OUTPUT
VOLTAGE (V)
010203040
TIME(
μ
s)
RL 2 k Ω
VCC = +15V
4
3
2
1
0
3
2
1
LM2902 Electrical characteristics
Doc ID 2469 Rev 7 9/21
Figure 9. Common mode rejection ratio Figure 10. 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
Figure 11. Open-loop frequency response Figure 12. Voltage follower pulse response
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 13. Large signal frequency response Figure 14. 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
Electrical characteristics LM2902
10/21 Doc ID 2469 Rev 7
Figure 15. Input current Figure 16. Voltage gain
Figure 17. Power supply and common mode
rejection ratio
Figure 18. Large signal voltage gain
LM2902 Typical single-supply applications
Doc ID 2469 Rev 7 11/21
5 Typical single-supply applications
Figure 19. AC coupled inverting amplifier Figure 20. 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 21. Non-inverting DC gain Figure 22. 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
e
O
e
4
e
3
e
2
e
1
100 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 23. Active bandpass filter Figure 24. 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
eO
R1
100 k
Ω
e1
1/4
LM2902
R7
100 k
Ω
R6
100 k
Ω
R5
100 k
Ω
e2
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 LM2902
12/21 Doc ID 2469 Rev 7
Figure 25. High input Z, DC differential
amplifier
Figure 26. Low drift peak detector
Figure 27. 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
LM2902 ECOPACK®
Doc ID 2469 Rev 7 13/21
6 ECOPACK®
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.
ECOPACK®LM2902
14/21 Doc ID 2469 Rev 7
6.1 DIP14 package information
Figure 28. DIP14 package mechanical drawing
Table 4. DIP14 package mechanical data
Ref.
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
LM2902 ECOPACK®
Doc ID 2469 Rev 7 15/21
6.2 SO-14 package information
Figure 29. SO-14 package mechanical drawing
Table 5. SO-14 package mechanical data
Dimensions
Ref.
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 1.35 1.75 0.05 0.068
A1 0.10 0.25 0.004 0.009
A2 1.10 1.65 0.04 0.06
B 0.33 0.51 0.01 0.02
C 0.19 0.25 0.007 0.009
D 8.55 8.75 0.33 0.34
E 3.80 4.0 0.15 0.15
e1.27 0.05
H 5.80 6.20 0.22 0.24
h 0.25 0.50 0.009 0.02
L 0.40 1.27 0.015 0.05
k 8° (max.)
ddd 0.10 0.004
ECOPACK®LM2902
16/21 Doc ID 2469 Rev 7
6.3 TSSOP14 package information
Figure 30. 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
LM2902 ECOPACK®
Doc ID 2469 Rev 7 17/21
6.4 QFN16 3 x 3 package mechanical data
Figure 31. QFN16 3 x 3 mm package mechanical drawing
*$06&%
ECOPACK®LM2902
18/21 Doc ID 2469 Rev 7
Figure 32. QFN16 3 x 3 mm footprint recommendation
Table 7. QFN16 3 x 3 mm package mechanical data (pitch 0.5 mm)
Ref.
Dimensions
Millimeters Inches
Min. Typ. Max. Min. Typ. Max.
A 0.80 0.90 1.00 0.031 0.035 0.039
A1 0 0.05 0 0.002
A3 0.20 0.008
b 0.18 0.30 0.007 0.012
D 2.90 3.00 3.10 0.114 0.118 0.122
D2 1.50 1.80 0.059 0.071
E 2.90 3.00 3.10 0.114 0.118 0.122
E2 1.50 1.80 0.059 0.071
e 0.50 0.020
L 0.30 0.50 0.012 0.020
*$06
LM2902 Ordering information
Doc ID 2469 Rev 7 19/21
7 Ordering information
Table 8. Order codes
Order code Temperature range Package Packing Marking
LM2902N
-40°C, +125°C
DIP14 Tube LM2902N
LM2902D
LM2902DT SO-14 Tube or
tape & reel 2902
LM2902PT TSSOP14
Tape & reel
LM2902Q4T QFN16 3x3 K5H
LM2902YDT(1) SO-14
(Automotive grade level)
2902Y
LM2902YPT(1) TSSOP14
(Automotive grade level)
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001
& Q 002 or equivalent.
Revision history LM2902
20/21 Doc ID 2469 Rev 7
8 Revision history
Table 9. Document revision history
Date Revision Changes
30-Nov-2001 1 Initial release.
01-Jul-2005 2 PPAP references inserted in the datasheet, see Tab le 8: Order codes.
ESD protection inserted in Table 1 on page 4.
31-Oct-2005 3
An error in the device description was corrected on page 1.
PPAP reference inserted in the datasheet see Table 8: Order codes.
Minor grammatical and formatting changes throughout.
18-Jun-2007 4
Values for thermal resistance junction to ambient and ESD HBM corrected in
Table 1: Absolute maximum ratings (AMR).
Values for thermal resistance junction to case added in Table 1: Absolute
maximum ratings (AMR).
Table 2: Operating conditions added.
Electrical characteristics figure captions updated.
Section 6: Package information updated.
Table 8: Order codes moved to end of document.
18-Dec-2007 5
Removed power dissipation parameter from AMR table and added maximum
junction temperature.
Updated footnotes for automotive grade order codes.
Updated format of package information.
16-Feb-2012 6
Added AMR values for input current in Tabl e 1 on page 4.
Added QFN16 3 x 3 mm package information in Chapter 7: Ordering
information.
Removed LM2902YD order code from Table 8 and changed status of
LM2902YPT order code.
29-Jan-2013 7
Small text/layout changes in Features and Description.
Updated Figure 2: Pin connections (top view).
Table 3: VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25°C (unless
otherwise specified): DVio replaced by ΔVio/ΔT.
Replaced SO-14 package silhouette, package mechanical drawing (Figure 29)
and package mechanical data (Table 5).
LM2902
Doc ID 2469 Rev 7 21/21
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