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Operational Amplifiers (Op Amps)

Technical Documentation

These Operational Amplifiers (Op Amps) include a variety of high-gain differential amplifiers that provide rail-to-rail input and/or output available in single, dual, and quad-channel configurations. The portfolio’s ideal performance is enabled by wide power supply range, high precision performance, wide bandwidth, low noise, and low power consumption. The portfolio’s variety operational abilities make them ideal for automotive, industrial, consumer, and medical applications. The portfolio also includes AEC-Q101 Qualified and PPAP Capable options specifically engineered and qualified for automotive industry applications.

Product Family

Precision Op Amps

Amplifiers with offset voltage accuracy of less than 1 mV.

Low Power Op Amps

Amplifiers with quiescent current ≤ 250 µA.

Zero Drift Op Amps

Amplifiers with offset voltage drift of less than 0.1 µV/℃.

Automotive Op Amps

Automtoive qualified amplifiers.

Featured New Products

NCS20282: Dual Operational Amplifier, 7 MHz, with Enable and CSP packaging
  • World’s Smallest Dual Operational Amplifier
  • Offset Voltage 1.5 mV max
  • Low Iq of 1300 µA max over full temperature
  • Small Packaging, dual channels in 1 mm x 1 mm CSP
NCS20166: Precision Operational Amplifier, 10 MHz
  • Bandwidth: 10 MHz
  • Voltage Noise Density: 10 nV/√Hz
  • Low Input Bias Current: 600 pA max over temperature
  • Automotive qualified options are available under NCV prefix
NCS21911: Precision Operational Amplifier, 2 MHz
  • Low Offset Drift: 0.085 µV/°C max
  • High CMRR of 140 dB max
  • High PSRR of 130 dB max
  • Automotive qualified options are available under NCV prefix

Product Resources

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Application Note

Zero-Drift Precision Op Amps: Advantages and Limitations of the Chopper-Stabilized Architecture

specialized op amps designed for applications that require high output accuracy due to small differential voltages. Not only do they feature low input offset voltage, but they also have high CMRR, high PSRR, high open loop gain, and low drift over temperature and time. These features make them ideal for applications such as low−side current sensing and sensor interface, particularly with very small differential signals.

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Operational Amplifiers - Application Needs for Precision in Industrial Control

The evolution of electronic control of industrial functions requires the ability to measure and precisely control equipment position, angles and rotation. These applications, such as assembly robots, surface and valve actuators, have the potential to not only provide higher quality finished products but to also improve human safety by removing workers from harsh environments.

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Capacitive Loads and Phase Margin

Driving a capacitive load with an op amp can be tricky. If the load capacitance is too high, this can cause instability, making the op amp output oscillate. Having adequate phase margin is essential for stability. As load capacitance increases, phase margin decreases. If you are seeing an op amp output oscillate, the first thing to look at is the load.

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