The AD8476ARMZ is a Fully Differential Amplifier and ADC Driver with integrated gain resistors for unity gain. It is an ideal choice for driving low power, high performance ADCs as a single-ended-to-differential or differential-to-differential amplifier. It provides a precision gain of 1, common-mode level shifting, low temperature drift and rail-to-rail outputs for maximum dynamic range. The AD8476 works well with SAR, Σ-Δ and pipeline converters. The high current output stage of the part allows it to drive the switched capacitor front-end circuits of many ADCs with minimal error. Unlike many differential drivers, the AD8476 is a high precision amplifier. With 200μV maximum output offset, 39nV/√Hz noise and -102dB THD + N at 10kHz, the AD8476 pairs well with low power, high accuracy converters. Considering its low power consumption and high precision, the slew-enhanced AD8476 has excellent speed, settling to 16-bit precision for 250kSPS acquisition times.
- Very low power
- 330μA Supply current
- Extremely low harmonic distortion
- Fully differential or single-ended inputs/outputs
- Differential output designed to drive precision ADCs
- Drives switched capacitor and Σ-Δ ADCs
- VOCM pin adjusts output common-mode
- Robust overvoltage up to 18V beyond supplies
- High performance
- Suitable for driving 16-bit converter up to 250kSPS
- 39nV/√Hz Output noise
- 1ppm/°C Gain drift maximum
- 200μV Maximum output offset
传感与仪器, 信号处理, 电源管理
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