Features: 500MHz UNITY-GAIN BANDWIDTH LOW INPUT BIAS CURRENT: 2pA LOW OFFSET AND DRIFT: ±0.25mV, ±2V/°C LOW DISTORTION: 74dB SFDR at 5MHz HIGH OUTPUT CURRENT: 70mA LOW INPUT VOLTAGE NOISE: 7nV/HzApplicationWIDEBAND PHOTODIODE AMPLIFIERSSAMPLE-AND-HOLD BUFFERS CCD OUTPUT BUFFERSADC INPUT BUFFERS WI...
OPA656: Features: 500MHz UNITY-GAIN BANDWIDTH LOW INPUT BIAS CURRENT: 2pA LOW OFFSET AND DRIFT: ±0.25mV, ±2V/°C LOW DISTORTION: 74dB SFDR at 5MHz HIGH OUTPUT CURRENT: 70mA LOW INPUT VOLTAGE NOISE: 7nV/HzApp...
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Operational Amplifiers - Op Amps High-Speed Precision Difet
The OPA656 combines a very wideband, unity-gain stable, voltage-feedback op amp with a FET-input stage to offer an ultra high dynamic-range amplifier for ADC (Analog-to-Digital Converter) buffering and transimpedance applications. Extremely low DC errors give good precision in optical applications.
The high unity-gain stable bandwidth and JFET input allows exceptional performance in high-speed, low-noise integrators. The high input impedance and low bias current provided by the FET input is supported by the ultra-low 7nV/Hz input voltage noise to achieve a very low integrated noise in wideband photodiode transimpedance applications.
Broad transimpedance bandwidths are achievable given the OPA656's high 230MHz gain bandwidth product. As shown below, a 3dB bandwidth of 1MHz is provided even for a high 1MW transimpedance gain from a 47pF source capacitance.