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LM2904WHYD-LM2904WHYDT
Dual general purpose operational amplifier
July 2012 Doc ID 9876 Rev 7 1/12
LM2904WHLow power dual operational amplifier
Datasheet — production data
Features Internally frequency compensated Large DC voltage gain: 100dB Wide bandwidth (unity gain: 1.1 MHz
temperature compensated) Very low supply current per operator (500 µA) Low input bias current: 20 nA
(temperaturecompensated) Low input offset current: 2 nA Input common-mode voltage range includes
ground Differential input voltage range equal to the
power supply voltage Large output voltage swing 0 V to VCC -1.5V Internal ESD protection: kV HBM
–200 V MM
DescriptionThis 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 +5 V which is used in logic systems
and will easily provide the required interface
electronics 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.
Schematic diagram LM2904WH Doc ID 9876 Rev 7
1 Schematic diagram
Figure 1. Schematic diagram (1/2 LM2904WH)
Figure 2. Pad locations
LM2904WH Absolute maximum ratings and operating conditionsDoc ID 9876 Rev 7 3/12
Absolute maximum ratings and operating conditions
Table 1. Absolute maximum ratings Short-circuits from the output to VCC can cause excessive heating if VCC+ > 15 V. The maximum output
current is approximately 40 mA, independent of the magnitude of VCC. Destructive dissipation can result
from simultaneous short-circuits on all amplifiers. Short-circuits can cause excessive heating and destructive dissipation. Values are typical. 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 5 mA as indicated, and normal output is
restored for input voltages above -0.3V. Human body model: A 100pF capacitor is charged to the specified voltage, then discharged through a 1.5kΩ resistor between two pins of the device. This is done for all couples of connected pin combinations while the other pins are floating. Machine model: A 200pF capacitor is charged to the specified voltage, then discharged directly between two pins of the device with no external series resistor (internal resistor < 5Ω). This is done for all couples of connected pin combinations while the other pins are floating. 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.
Table 2. Operating conditions The input common-mode voltage of either input signal voltage should not be allowed to go negative by
more than 0.3 V. The upper end of the common-mode voltage range is VCC+ –1.5 V, but either or both
inputs can go to +32 V without damage.
Electrical characteristics LM2904WH4/12 Doc ID 9876 Rev 7
3 Electrical characteristics Table 3. VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25°C (unless otherwise
specified)
LM2904WH Electrical characteristicsDoc ID 9876 Rev 7 5/12 VO = 1.4 V, RS = 0 Ω, 5 V < VCC+ < 30 V, 0 V < Vic < VCC+ - 1.5V. 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. Due to the proximity of external components, ensure that stray capacitance does not cause coupling
between these external parts. Typically, this can be detected because this type of capacitance increases at
higher frequencies.
Table 3. VCC+ = 5V, VCC- = Ground, Vo = 1.4V, Tamb = 25°C (unless otherwise
specified) (continued)
Electrical characteristics LM2904WH
