High-speed amplifiers for low-power high-resolution data conversion systems

Ideal for low-power high-resolution data conversion systems, Mouser now stocks the Analog Devices ADA4805-1 / ADS4805-2 high speed voltage feedback, rail-to-rail output amplifiers which feature an exceptionally low quiescent current of 500µA. Despite their low-power performance, the ADI ADA4805 amplifiers deliver high overall performance. They offer a high bandwidth of 105MHz at a gain of +1, a high slew rate of 160V/µs, and a low input offset voltage of 125µV (maximum). A shutdown pin allows further reduction of the quiescent supply current to 2.9µA. For power sensitive applications, the shutdown mode offers a very fast turn-on time of 3µs. This allows the user to dynamically manage the power of the amplifier by turning the amplifier off between ADC samples. ADA4805-1 / ADA4805-2 operate over a wide range of supply voltages from ±1.5V to ±5V, as well as single 3V and 5V supplies, making them ideal for high speed, low power instruments. ADA4805-2ARMZ-EBZ is designed to help users quickly prototype new dual op amp circuits and reduce design time. Evaluation boards are also available, says the company.