ADA4940-1ARZ

产品概述

The ADA4940-1ARZ is a low noise low distortion fully Differential Amplifier with very low power consumption. It is an ideal choice for driving low power, high resolution, high performance SAR and sigma-delta (Σ-Δ) analog-to-digital converters (ADCs) with resolutions up to 16 bits from DC to 1MHz on only 1.25mA of quiescent current. The adjustable level of the output common-mode voltage allows the ADA4940-1 to match the input common-mode voltage of multiple ADCs. The internal common-mode feedback loop provides exceptional output balance, as well as suppression of even-order harmonic distortion products. With the ADA4940-1, differential gain configurations are easily realized with a simple external feedback network of four resistors determining the closed-loop gain of the amplifier.

• Extremely low harmonic distortion (HD)
• Balanced outputs
• Adjustable output common-mode voltage
• Disable pin to reduce power consumption
• 1.25mA Ultralow power supply
• 3.9nV/√Hz Low input voltage noise
• 0.35mV Maximum offset voltage
• 34ns Settling time to 0.1%

应用

信号处理, 医用, 工业, 便携式器材