High-speed low-power 2-channel successive approximation ADCs

Available now from RS Components, Analog Devices AD7911 (10-bit) and AD79211 (12-bit) are high-speed low-power, 2-channel successive-approximation analog-to-digital converters (ADCs). The devices operate from a single 2.35V to 5.25V power supply and feature throughput rates of up to 250kSPS. They integrate a low-noise wide-bandwidth track-and-hold amplifier, which can handle input frequencies in excess of 6MHz. The conversion process and data acquisition are controlled using CS and the serial clock, allowing the devices to interface with microprocessors or DSPs. The input signal is sampled on the falling edge of CS, and the conversion is also initiated at this point.