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Home Knowledge Base

What is an LM2904 IC : Pin Configuration & Its Applications

Bhushan Chaudhary by Bhushan Chaudhary
August 20, 2022
in Knowledge Base
0
  • The LM2904 is an amplifier integrated circuit that consists of two internally frequency Op-amps with high gain and independence. Furthermore, its design allows it to operate at multiple voltages from a single power supply system. As a result, it is widely used in digital systems and any electronic device.
  • Despite their slew rate limitations, LM2904 integrated circuits have improved performance. Its inverting and non-inverting amplifier circuit combination contributes to an adjustable reference voltage circuit. The adjustment changes the input voltage from a negative to the input voltage itself.
Practical LM2904 IC
  • Split power supply operation is also possible, and the low power supply current drain is independent of power supply voltage magnitude.
  • Operational amplifiers are linear devices with all of the properties required for nearly ideal DC amplification and are thus widely used in signal conditioning, filtering, and mathematical operations such as add, subtract, integration, and differentiation.
  • A differential-input stage with a high input impedance, an intermediate-gain stage, and a push-pull output stage with a low output impedance comprise an operational amplifier or op-amp.

Pin Configuration

The pin diagram of LM2904 IC is given below.

Pin Configuration : LM2904 IC
Pin Name Pin No. Description
OUT1 1 The output of first Op-amp
IN1– 2 First Op-amp Negative input
IN1+ 3 First Op-amp Positive input
V– 4 Negative (lowest) supply or ground (for single-supply operation)
IN2+ 5 Second Op-amp Positive input
IN2– 6 Second Op-amp Negative input
OUT2 7 The output of second Op-amp
V+ 8 A positive (highest) supply

Features of LM2904 IC

  • Dual Operational Amplifier with Low Power.
  • Maximum Input Offset Voltage: 7mV.
  • Maximum Input Offset Current: 50nA.
  • Maximum Input Bias Current: 250nA.
  • Maximum operating temperature: 850°C.
  • Maximum output current: 3mA.
  • CMRR (minimum): 50dB.

Applications of LM2904 IC

  • Amplifiers for Transducers.
  • Typical op-amp circuits.
  • Differentiator, Integrator, Summer, adder, Voltage follower, and so on.
  • Oscilloscopes, digital multimeters, and DC gain blocks.
  • Comparators (Loop control & regulation).
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Bhushan Chaudhary

Bhushan Chaudhary

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