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STMicroelectronics
STMicroelectronics

LM2904WH Datasheet

Low power dual operational amplifier


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LM2904WH
Low power dual operational amplifier
Features
Internally frequency-compensated
Large DC voltage gain: 100dB
Wide bandwidth (unity gain: 1.1MHz
temperature-compensated)
Very low supply current per operator (500µA)
Low input bias current: 20nA (temperature-
compensated)
Low input offset current: 2nA
Input common-mode voltage range includes
ground
Differential input voltage range equal to the
power supply voltage
Large output voltage swing 0V to VCC - 1.5V
Internal ESD protection:
– 2kV HBM
– 200V MM
Description
This circuit consists of two independent, high-
gain, internally frequency-compensated operational
amplifiers, designed specifically for automotive
and industrial control systems. It 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 now can be more easily
implemented in single power supply systems. For
example, these circuits can be directly supplied
from standard +5V which is used in logic systems
and will easily provide the required interface
electronics without requiring any additional power
supply.
D
SO-8
(Plastic micropackage)
Wafer form
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.
July 2007
Rev 5
1/11
www.st.com
11
Page 1

Schematic diagram
1 Schematic diagram
Figure 1. Schematic diagram (1/2 LM2904WH)
LM2904WH
Figure 2. Pad locations
E+ (2)
GND
E- (2)
y
OUT 2
x
Vcc +
E+ (1)
E- (1)
OUT 1
Name Pad placement Pad dimensions
GND
E+1
E-1
OUT1
Vcc +
OUT2
E-2
E+2
X
480
940
1010
910
480
55
-30
-30
Y
1040
1030
620
55
70
55
620
1030
X
102
102
102
102
102
102
102
102
Y
102
102
102
102
102
102
102
102
The origin coordinate is at the bottom left part of the
OUT2 pin. All dimensions are specified in micrometers (µm).
2/11
Page 2

LM2904WH
2 Absolute maximum ratings
Absolute maximum ratings
Table 1. Absolute maximum ratings
Symbol
Parameter
Value
Unit
VCC+
VID
VI
Pd
Iin
Tstg
ESD
Supply voltage
Differential input voltage
Input voltage
Output short-circuit to ground(1)
Power dissipation at Tamb=+25°C (2)
Input current (3)
Storage temperature range
HBM: human body model(4)
MM: machine model(5)
CDM: charged device model(6)
+32
-0.3 to VCC+0.3
-0.3 to VCC+0.3
40
1
5
-65 to +150
2
200
1.5
V
V
V
mA
W
mA
°C
kV
V
kV
1. Short-circuits from the output to VCC can cause excessive heating if VCC+ > 15V. The maximum output
current is approximately 40mA, independent of the magnitude of VCC. Destructive dissipation can result
from simultaneous short-circuits on all amplifiers.
2. Pd is calculated with Tamb = +25°C, TJunction = +150°C and Rthja = 125°C/W for the SO-8 package.
3. This input current only exists when the voltage values applied on the inputs is beyond the supply voltage
line limits. This is not destructive if the current does not exceed 5mA as indicated, and normal output will be
restored for input voltages above -0.3V.
4. Human body model: 100pF discharged through a 1.5kΩ resistor between two pins of the device, done for
all couples of pin combinations with other pins floating.
5. Machine model: a 200pF cap is charged to the specified voltage, then discharged directly between two pins
of the device with no external series resistor (internal resistor < 5Ω), done for all couples of pin
combinations with other pins floating.
6. Charged device model: all pins plus package are charged together to the specified voltage and then
discharged directly to the ground.
Table 2. Operating conditions
Symbol
Parameter
Value
Unit
VCC+
Toper
Supply voltage
Operating free-air temperature range
3 to 30
-40 to +150
V
°C
3/11
Page 3
Part Number LM2904WH
Manufactur STMicroelectronics
Description Low power dual operational amplifier
Total Page 11 Pages
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