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STMicroelectronics
STMicroelectronics

LM2904A Datasheet

Low-power dual operational amplifier


LM2904A Datasheet Preview


LM2904, LM2904A
Low-power dual operational amplifier
Datasheet - production data
Features
Frequency compensation implemented
internally
Large DC voltage gain: 100 dB
Wide bandwidth (unity gain): 1.1 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)
Related products
See LM2904W for enhanced ESD
performances
Description
This circuit consists of two independent, high
gain operational amplifiers (op amps) that have
frequency compensation implemented internally.
They are designed specifically for automotive and
industrial control systems. The circuit operates
from a single power supply over a wide range of
voltages. 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.
February 2016
DocID2471 Rev 17
This is information on a product in full production.
1/24
www.st.com
Page 1

Contents
LM2904, LM2904A
Contents
1 Schematic diagram.......................................................................... 3
2 Package pin connections................................................................ 4
3 Absolute maximum ratings and operating conditions ................. 5
4 Electrical characteristics ................................................................ 7
5 Electrical characteristic curves ...................................................... 9
6 Typical single-supply applications .............................................. 12
7 Macromodel ................................................................................... 14
8 Package information ..................................................................... 15
8.1 DFN8 2x2 package information....................................................... 16
8.2 MiniSO8 package information ......................................................... 18
8.3 TSSOP8 package information......................................................... 19
8.4 SO8 package information................................................................ 20
9 Ordering information..................................................................... 21
10 Revision history ............................................................................ 22
2/24 DocID2471 Rev 17
Page 2

LM2904, LM2904A
Schematic diagram
1 Schematic diagram
Figure 1: Schematic diagram (1/2 LM2904, LM2904A)
VCC
Inverting
input
Non-inverting
input
Q2
Q1
Q8
6µA 4µA
Q3
Q4
CC
100µA
Q5
Q6
Q7
R SC
Q11
Output
Q13
Q10 Q12
Q9
50µA
GND
DocID2471 Rev 17
3/24
Page 3
Part Number LM2904A
Manufactur STMicroelectronics
Description Low-power dual operational amplifier
Total Page 24 Pages
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