This document describes the AD7938-6 Rev. 0, an 8-channel, 625 kSPS, 12-bit parallel ADC with a sequencer. It features a fast throughput rate, low power consumption, multiple analog input channels, and an accurate on-chip reference voltage. The ADC is suitable for supply voltages ranging from 2.7V to 5.25V and offers various configuration options.
The AD7938-6 is a high-speed, low-power successive approximation (SAR) analog-to-digital converter featuring eight analog input channels controlled by a channel sequencer. It supports single-ended, fully differential, and pseudo-differential input configurations and operates from a single 2.7 V to 5.25 V power supply.
The device includes an accurate on-chip 2.5 V reference and offers flexible power management options with full shutdown modes consuming as little as 2 pA. It features a high-speed parallel interface supporting word/byte modes and no pipeline delays, making it suitable for interfacing directly with microprocessors and DSPs.
| Resolution | 12 Bits |
|---|---|
| Throughput Rate | 625 kSPS max |
| Signal-to-Noise + Distortion (SINAD) | 70 dB min (Differential mode) |
| Full Power Bandwidth | 50 MHz typ @3dB |
| Power Supply Voltage (Vop) | 2.7 V to 5.25 V |
The maximum throughput rate is 625 kSPS.
The device supports single-ended, fully differential, and pseudo-differential inputs.
Yes, it features an accurate on-chip 2.5 V reference.