AD7939

Data Sheet 8-Channel, 1.5 MSPS, 12-Bit and 10-Bit Parallel ADCs with a Sequencer AD7938/AD7939 FEATURES Throughput rate: 1.5 MSPS Specified for VDD of 2.7 V to 5.25 V Power consumption 6 mW maximum at 1.5 MSPS with 3 V supplies 13.5 mW maximum at 1.5 MSPS with 5 V supplies 8 analog input channels with a sequencer Software-configurable analog inputs 8-channel single-ended inputs 4-channel fully differential inputs 4-channel pseudo differential inputs 7-channel pseudo differential inputs Accurate on-chip 2.5 V reference ±0.2% maximum @ 25°C, 25 ppm/°C maximum 69 dB SINAD at 50 kHz input frequency No pipeline delays High speed parallel interface—word/byte modes Full shutdown mode: 2 µA maximum 32-lead LFCSP and TQFP packages GENERAL DESCRIPTION The AD7938/AD7939 are 12-bit and 10-bit, high speed, low power, successive approximation (SAR) analog-to-digital converters (ADCs). The parts operate from a single 2.7 V to 5.25 V power supply and feature throughput rates up to 1.5 MSPS. Th...