LM2904W, LM2904AW
Low power dual operational amplifier
Datasheet — production data
Features
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■
■
■
■
■
■
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Frequency compensation implemented
internally
Large DC voltage gain: 100 dB
Wide bandwidth (unity gain): 1.1 MHz
(temperature compensated)
Very low supply current/op (500 µA per
channel)
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
(V
CC+
- 1.5 V)
ESD internal protection: 2 kV
Automotive qualification
Pin connections
(top view)
Output A
Inverting input A
VCC+
Output B
Inverting input B
Non-inverting input B
N
DIP8
(Plastic package)
D
SO-8
(Plastic micropackage)
P
TSSOP8
(Thin shrink small outline package)
Description
The LM2904W and LM2904AW circuits consist of
two independent, high gain operational amplifiers
which employ internal frequency compensation
and are designed specifically for automotive and
industrial control systems. They operate 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 now can be more easily
implemented in single power supply systems. For
example, these circuits can be directly supplied
from standard +5 V which is used in logic systems
and easily provides the required interface
electronics without requiring any additional power
Non-inverting input A
VCC-
supply. In linear mode, the input common mode
voltage range includes ground. The output
voltage can also swing to ground even though
operated from a single power supply.
February 2013
This is information on a product in full production.
Doc ID 9893 Rev 11
1/21
www.st.com
21
Contents
LM2904W, LM2904AW
Contents
1
2
3
Schematic diagram . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
Absolute maximum ratings and operating conditions . . . . . . . . . . . . . 4
Electrical characteristics . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6
Typical single-supply applications. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11
4
Macromodel . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
4.1
4.2
Important note concerning this macromodel . . . . . . . . . . . . . . . . . . . . . . 13
Macromodel code . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13
5
Package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15
5.1
5.2
5.3
DIP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16
SO-8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17
TSSOP8 package information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18
6
7
Ordering information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 19
Revision history . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2/21
Doc ID 9893 Rev 11
LM2904W, LM2904AW
Schematic diagram
1
Schematic diagram
Figure 1.
Schematic diagram (1/2 LM2904W, LM2904AW)
Doc ID 9893 Rev 11
3/21
Absolute maximum ratings and operating conditions
LM2904W, LM2904AW
2
Table 1.
Symbol
V
CC
V
id
V
in
I
in
T
stg
T
j
Absolute maximum ratings and operating conditions
Absolute maximum ratings (AMR)
Parameter
Supply voltage
(1)
Differential input voltage
(2)
Input voltage
Output short-circuit duration
(3)
Input current
(4)
Storage temperature range
Maximum junction temperature
Thermal resistance junction to ambient
(5)
DIP8
SO-8
TSSOP8
Thermal resistance junction to case
(5)
DIP8
SO-8
TSSOP8
Storage temperature range
HBM: human body model
(6)
MM: machine model
(7)
CDM: charged device model
(8)
Value
+32
-0.3 V to V
CC
+ 0.3
-0.3 V to V
CC
+ 0.3
Infinite
50
-65 to +150
150
85
125
120
41
40
37
-65 to +150
2000
200
1500
°C
V
s
mA
°C
V
Unit
R
thja
°C/W
R
thjc
T
stg
ESD
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 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 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 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. Short-circuits can cause excessive heating and destructive dissipation. R
th
are typical values.
6. Human body model: 100 pF discharged through a 1.5 kΩ resistor between two pins of the device, done for all couples of pin
combinations with other pins floating.
7. Machine model: a 200 pF cap is charged to the specified voltage, then discharged directly between two pins of the device
with no external series resistor (internal resistor < 5
Ω),
done for all couples of pin combinations with other pins floating.
8. Charged device model: all pins plus package are charged together to the specified voltage and then discharged directly to
the ground.
4/21
Doc ID 9893 Rev 11
LM2904W, LM2904AW
Table 2.
Symbol
V
CC
V
icm
T
oper
Supply voltage
Common mode input voltage range
T
min
≤
T
amb
≤
T
max
Operating free-air temperature range
Absolute maximum ratings and operating conditions
Operating conditions
Parameter
Value
3 to 30
V
CC+
- 1.5
V
CC+
- 2
-40 to +125
V
°C
Unit
Doc ID 9893 Rev 11
5/21
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