OPA842

OPA842 www.ti.com SBOS267D – NOVEMBER 2002 – REVISED SEPTEMBER 2010 Wideband, Low Distortion, Unity-Gain Stable, Voltage-Feedback OPERATIONAL AMPLIFIER Check for Samples: OPA842 FEATURES 1 2 UNITY-GAIN BANDWIDTH: 400MHz GAIN-BANDWIDTH PRODUCT: 200MHz LOW INPUT VOLTAGE NOISE: 2.6nV/√Hz VERY LOW DISTORTION: –93dBc (5MHz) HIGH OPEN-LOOP GAIN: 110dB FAST 12-BIT SETTLING: 22ns (0.01%) LOW DC VOLTAGE OFFSET: 300mV Typical PROFESSIONAL LEVEL DIFF GAIN/PHASE ERROR: 0.003%/0.008° APPLICATIONS ADC/DAC BUFFER DRIVER LOW DISTORTION IF AMPLIFIER ACTIVE FILTER CONFIGURATION LOW-NOISE DIFFERENTIAL RECEIVER HIGH-RESOLUTION IMAGING TEST INSTRUMENTATION PROFESSIONAL AUDIO OPA642 UPGRADE DESCRIPTION The OPA842 provides a level of speed and dynamic range previously unattainable in a monolithic op amp. Using unity-gain stable, voltage-feedback architecture with two internal gain stages, the OPA842 achieves exceptionally low harmonic distortion over a wide frequency range. The classic differential input provides all the familiar benefits of precision op amps, such as bias current cancellation and very low inverting current noise compared with wideband current differential gain/phase performance, low-voltage noise, and high output current drive make the OPA842 ideal for most high dynamic range applications. Unity-gain stability makes the OPA842 particularly suitable for low-gain differential amplifiers, transimpedance amplifiers, gain of +2 video line drivers, wid...