OPA656NB – TEXAS INSTRUMENTS

The Texas Instruments OPA656NB is a single, precision, low-noise, high-speed operational amplifier packaged in a small, surface-mount SOIC-8. Operating from a ±15V to ±5V supply, it boasts a typical input offset voltage of only 25µV and an input bias current of 1nA, crucial for high-precision applications. Its high gain-bandwidth product of 1000MHz and fast slew rate of 2000V/µs make it ideal for high-speed signal processing. The OPA656NB exhibits low distortion, with a typical THD+N of 0.0008% at 1kHz, making it suitable for audio and instrumentation applications demanding high fidelity._x000D_
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Common use cases include high-speed data acquisition systems, precision instrumentation amplifiers, and high-fidelity audio circuits requiring minimal noise and distortion. Its low input bias current is advantageous in high-impedance applications where leakage currents can significantly impact accuracy. The device’s wide bandwidth and fast slew rate are particularly beneficial in applications involving rapidly changing signals, minimizing signal distortion and maintaining signal integrity. However, designers should note its relatively high power consumption compared to ultra-low-power op-amps. The OPA656NB offers a compelling balance of speed, precision, and low noise, making it a strong choice for demanding high-performance applications.