STMicroelectronics LM2902B Datasheet
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SO14
TSSOP14
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LM2902B
LM2902B
Datasheet
Automotive-grade, low power, quad, 36 V operational amplifier
Features
• AEC-Q101 qualified
• Up to 36 V operating supply voltage
• Frequency compensation implemented internally
• Large DC voltage gain: 100 dB
• Wide bandwidth (unity gain): 1.2 MHz (temperature compensated)
• Very low supply current/amplifier, essentially independent of supply voltage
• Low input bias current: 20 nA (temperature compensated)
• Low input offset current: 2 nA
• Input common-mode voltage range includes negative rail
• Differential input voltage range equal to the power supply voltage
• Large output voltage swing 0 V to Vcc -1.5 V
Applications
• Telecom equipment
• Power management
• Industrial application
• Automotive
Description
The LM2902B consists of four independent, high gain operational amplifiers (Op
Amps) that have frequency compensation implemented internally. They are designed specifically for automotive and industrial control systems. This circuit operates from a single power supply over a wide range of voltages. The LM2902B is guaranteed up to 36 V supply voltage operation. The low power supply drain is independent of the magnitude of the power supply voltage. Application areas include transducer amplifiers, DC gain blocks and all the conventional Op Amp circuits which can now be more easily implemented in single power supply systems. For example, these circuits can be directly supplied from the standard 5 V which is used in logic systems and easily provides the required electronic interfaces without requiring any additional power supply. In linear mode, the input common-mode voltage range includes ground and the output voltage can also swing to ground, even though operated from a single power supply.
DS13860 - Rev 1 - November 2021
For further information contact your local STMicroelectronics sales office.
www.st.com
1 Schematic diagram
Figure 1. Schematic diagram
LM2902B
Schematic diagram
DS13860 - Rev 1
Figure 2. Pin connections ( top view)
Output 1 1
Inverting input 1 2
Non-inverting input 1 3
VCC + 4
Non-inverting Input 2 5
Inverting input 2 6
Output 2 7
+
-
-
+
+
-
+
-
14 Output 4
13 Inverting input 4
12 Non-inverting input 4
11 VCC -
10 Non-inverting input 3
9 Inverting input 3
8 Output 3
SO14 and T SSOP14 page 2/18
2
LM2902B
Absolute maximum ratings and operating conditions
Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings
Symbol
V
CC
V id
V in
Parameter
Differential input voltage
Input voltage
Value
±20 or 40
±40
Unit
V
Output short-circuit duration
-0.3 to 40
Infinite s
Input current: V
IN
driven negative
5 mA in DC or
50 mA in AC, (duty cycle = 10 %, T = 1 s) I in mA
T
R
R stg
T j thja thjc
ESD
Input current:
V in
driven positive above AMR value
Storage temperature range
Maximum junction temperature
Thermal resistance junction-to-ambient
SO14
TSSOP14
Thermal resistance junction-to-case
SO14
TSSOP14
HBM: human body model
MM: machine model
CDM: charged device model
0.4
-65 to 150
150
105
100
31
32
370
150
1500
°C
°C/W
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-circuits from the output to V
CC
can cause an excessive heating if (V
CC
+) > 15 V. The maximum output current is approximately 40 mA, independent of the magnitude of V
CC
. Destructive dissipation can result from simultaneous short-circuits on all amplifiers.
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 an input diode clamp. In addition to this diode action, there is an 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 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 = (V in
- 36 V)/400 μA).
6. Short-circuits can cause an excessive heating and destructive dissipation. Values are typical.
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.
DS13860 - Rev 1 page 3/18
LM2902B
Absolute maximum ratings and operating conditions
Symbol
V cc
V icm
T
Table 2. Operating conditions
Parameter
Supply voltage
Common mode input voltage range T amb
= 25 °C
Common mode input voltage range Tmin ≤ Tamb ≤ Tmax
Operating free-air temperature range
Value
3 to 36
Vcc- to Vcc+ - 1.5
Vcc- to Vcc+ - 2
-40 to 125
Unit
V
°C
DS13860 - Rev 1 page 4/18
LM2902B
Electrical characteristics
3 Electrical characteristics
Table 3. Electrical characteristics, V cc
+ = 5 V and 36 V, V cc
- = 0 V, V o
= 1.4 V, R
L
connected to ground, T = 25 °C (unless otherwise specified)
Symbol Parameter Conditions Min. Typ. Max.
Unit
V io
T = 25 °C
Tmin < T < Tmax
4
5 mV
Δ
Vio
/ ΔT Input offset voltage drift Tmin < T < Tmax 7 30 µV/°C
I io
Input offset current
T = 25 °C
Tmin < T < Tmax
Tmin < T < Tmax
30
40 nA
10 200 pA/°C Δ
Iio
/ ΔT Input offset current drift
I ib
Input bias current
T = 25 °C
Tmin < T < Tmax
150
300
I
A
SVR Supply voltage rejection ratio
I vd cc
CMR source
I sink
Large signal voltage gain
Supply current
Common-mode rejection ratio
Output source current
Output sink current
V cc
= 15 V, R
L
= 2 kΩ, V o
= 1.4 to 11.4 V, T = 25 °C
V cc
= 15 V, R
L
= 2 kΩ, V o
= 1.4 to 11.4 V, Tmin < T < Tmax
V cc
= 36 V, R
L
= 2 kΩ, V o
= 1.4 to 11.4 V, T = 25 °C
V cc
= 36 V, R
L
= 2 kΩ, V o
= 1.4 to 11.4 V, Tmin < T < Tmax
V cc
= 5 to 36 V, V icm
= 0 V, T = 25 °C
V cc
= 5 to 36 V, V icm
= 0 V, Tmin < T < Tmax
All amps, no load, V cc
= 5 V, T = 25 °C
All amps, no load, V cc
= 5 V, Tmin < T < Tmax
All amps, no load, V cc
= 36 V, T = 25 °C
All amps, no load, V cc
= 36 V, Tmin < T < Tmax
V cc
= 36 V, V icm
= 0 to 34.5 V, T = 25 °C
V cc
= 36 V, Vicm = 0 to 34 V, Tmin < T < Tmax
V cc
= 36 V, V o
= 2 V, V id
= 1 V
V cc
= 36 V, V o
= 2 V
V
V oh ol
SR
High-level output voltage
Low-level output voltage
Slew rate
50
25
50
25
65
65
70
60
25
15
100
100
100
0.7
1.4
85
32
18
V cc
= 36 V, V o
= 0.2 V
V cc
= 36 V, R
L
= 2 kΩ, T = 25 °C
V cc
= 36 V, R
L
= 2 kΩ, Tmin < T < Tmax
V cc
= 36 V, R
L
= 10 kΩ, T = 25 °C
V cc
= 36 V, R
L
= 10 kΩ, Tmin < T < Tmax
V cc
= 5 V, R
L
= 10 kΩ, T = 25 °C
V cc
= 5 V, R
L
= 10 kΩ, Tmin < T < Tmax
70
32
32
33
33
94
33
34
5
V cc
= 36 V, R
L
= 10 kΩ, T = 25 °C
V cc
= 36 V, R
L
= 10 kΩ, Tmin < T < Tmax
5
V cc
= 15 V, V in
= 0.5 to 3 V, R
L
= 2 kΩ, C
L
= 100 pF, unity gain, T = 25 °C 0.3
0.6
V cc
= 15 V, V in
= 0.5 to 3 V, R
L
= 2 kΩ, C
L
= 100 pF, unity gain,
Tmin < T < Tmax
0.2
1.2
1.2
2.4
2.4
40
20
20
20
20 nA
V/mV dB mA dB mA mA
µA
V mV
V/µs
DS13860 - Rev 1 page 5/18
LM2902B
Electrical characteristics
Symbol
SR
GBP
Slew rate
Parameter
Gain bandwidth product
Vo1 / Vo2 Channel separation
Conditions
V cc
= 36 V, V in
= 0.5 to 3 V, R
L
= 2 kΩ, C
L
= 100 pF, unity gain, T = 25 °C
V cc
= 36 V, V in
= 0.5 to 3 V, R
L
= 2 kΩ, C
L
= 100 pF, unity gain,
Tmin < T < Tmax
V cc
= 36 V, f = 100 kHz, V in
= 10 mV, R
L
= 2 kΩ, C
L
= 100 pF
V cc
= 30 V, 1 kHz ≤ f ≤ 20 kHz
1. V
O
= 1.4 V, 5 V ≤ V
CC
≤ 36 V, 0 ≤ V icm
≤ V
CC
- 1.5 V.
2. The direction of the input current is out of the IC. This current is essentially constant as long as the output is not saturated, so there is no change in the loading charge on the input lines.
3. Due to the proximity of external components, ensure that the stray capacitance does not cause coupling between these external parts. This can typically be detected at higher frequencies because this type of capacitance increases.
Min. Typ. Max.
Unit
0.5 0.75
0.4
0.8
1.2
120
V/µs
MHz dB
DS13860 - Rev 1 page 6/18
DS13860 - Rev 1
LM2902B
Electrical characteristics
Figure 3. Supply current vs. supply voltage Figure 4. Input offset voltage distribution V
CC
=36 V
Input Offset Voltage
Figure 5. Input offset voltage vs. temperature at
V
CC
= 36 V
Figure 6. Input offset voltage vs. common-mode voltage at V
CC
= 36 V
Figure 7. Input bias current vs. temperature Figure 8. Gain and phase vs. freq. at V
CC
=36 V page 7/18
DS13860 - Rev 1
Figure 9. Phase margin vs. capacitive load at
V
CC
=36 V
LM2902B
Electrical characteristics
Figure 10. Overshoot vs. capacitive load at
V
CC
=36V
Figure 11. Output voltage vs. output current
(sinking)
Figure 12. Output voltage vs. output current
(sourcing)
Figure 13. Current limiting vs. temperature
Figure 14. Maximum output voltage vs. frequency at V
CC
= 15 V page 8/18
DS13860 - Rev 1
Figure 15. Slew rate behavior at V
CC
= 36 V
LM2902B
Electrical characteristics
Figure 16. Slew rate behavior vs. temperature at
V
CC
= 36 V
Figure 17. Common-mode rejection ratio and power supply rejection ratio at V
CC
= 5 V
Figure 18. Noise vs. frequency at V
CC
= 36 V
Figure 19. THD + N vs. voltage at V
CC
= 36 V Figure 20. THD + N vs. frequency at V
CC
= 36 V page 9/18
Figure 21. Small-signal step response vs. time at V
CC
= 36 V
LM2902B
Electrical characteristics
DS13860 - Rev 1 page 10/18
4
4.1
LM2902B
Package information
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.
SO14 package information
Figure 22. SO14 package outline
DS13860 - Rev 1
Table 4. SO14 mechanical data
Symbol
E e
A
A1
A2
B
C
D
H h
L k ddd
Min.
1.35
0.10
1.10
0.33
0.19
8.55
3.80
5.80
0.25
0.40
Milimeters
Typ.
1.27
Max.
1.75
0.25
1.65
0.51
0.25
8.75
4.0
6.20
0.50
1.27
0.10
8° max.
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Min.
0.05
0.004
0.04
0.01
0.007
0.33
0.15
0.22
0.009
0.015
Typ.
0.05
0.24
0.02
0.05
0.004
Max.
0.068
0.009
0.06
0.02
0.009
0.34
0.15
page 11/18
4.2
TSSOP14 package information
Figure 23. TSSOP14 package outline
LM2902B
TSSOP14 package information aaa
DS13860 - Rev 1
Table 5. TSSOP14 mechanical data
Symbol c
D
E
E1 e
A
A1
A2 b
L
L1 k aaa
Min.
0.05
0.80
0.19
0.09
4.90
6.20
4.30
0.45
0°
Milimeters
Typ.
1.00
5.00
6.40
4.40
0.65
0.60
1.00
Max.
1.20
0.15
1.05
0.30
0.20
5.10
6.60
4.50
0.75
8°
0.10
1. Values in inches are converted from mm and rounded to 4 decimal digits.
Min.
0.002
0.031
0.007
0.004
0.193
0.244
0.169
0.018
0°
Typ.
0.004
0.039
0.197
0.252
0.173
0.0256
0.024
0.039
Max.
0.047
0.006
0.041
0.012
0.0089
0.201
0.260
0.176
0.030
8°
0.004
page 12/18
5
LM2902B
Ordering information
Ordering information
Table 6. Ordering information
Order code
Temperature range
-40 to +125 °C
Package
SO14
TSSOP14
Packing
Tape and reel
Marking
2902BY
1. Qualified and characterized according to AEC Q100 and Q003 or equivalent, advanced screening according to AEC Q001 and Q002 or equivalent.
DS13860 - Rev 1 page 13/18
Revision history
Date
02-Nov-2021
Version
1
Table 7. Document revision history
Changes
Initial release.
LM2902B
DS13860 - Rev 1 page 14/18
LM2902B
Contents
Contents
DS13860 - Rev 1 page 15/18
LM2902B
List of tables
List of tables
Table 3. Electrical characteristics, V cc
DS13860 - Rev 1 page 16/18
LM2902B
List of figures
List of figures
Figure 4. Input offset voltage distribution V
Figure 5. Input offset voltage vs. temperature at V
= 36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 6. Input offset voltage vs. common-mode voltage at V
= 36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 7
Figure 8. Gain and phase vs. freq. at V
Figure 9. Phase margin vs. capacitive load at V
=36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 10. Overshoot vs. capacitive load at V
Figure 14. Maximum output voltage vs. frequency at V
= 15 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
Figure 15. Slew rate behavior at V
Figure 16. Slew rate behavior vs. temperature at V
= 36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 17. Common-mode rejection ratio and power supply rejection ratio at V
= 5 V . . . . . . . . . . . . . . . . . . . . . . . . . 9
Figure 18. Noise vs. frequency at V
Figure 19. THD + N vs. voltage at V
Figure 20. THD + N vs. frequency at V
Figure 21. Small-signal step response vs. time at V
= 36 V . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 10
DS13860 - Rev 1 page 17/18
LM2902B
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STMicroelectronics NV and its subsidiaries (“ST”) reserve the right to make changes, corrections, enhancements, modifications, and improvements to ST products and/or to this document at any time without notice. Purchasers should obtain the latest relevant information on ST products before placing orders. ST products are sold pursuant to ST’s terms and conditions of sale in place at the time of order acknowledgement.
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Information in this document supersedes and replaces information previously supplied in any prior versions of this document.
© 2021 STMicroelectronics – All rights reserved
DS13860 - Rev 1 page 18/18
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