The AD7622 is a 16-bit, 1.5 LSB INL, 2 MSPS PulSAR® ADC. It offers high throughput, low power consumption, low cost, and low EMI and is suitable for a variety of applications such as medical instruments, high-precision measurements, communications, and automotive applications.
The AD7622 is a 16‑bit, 2 MSPS charge‑redistribution SAR analog‑to‑digital converter that operates from a single 2.5 V supply. It offers wideband warp and normal modes, low INL, high dynamic range, and both parallel and serial interfaces.
This document includes full electrical specifications, timing diagrams, absolute maximum ratings, pin‑out tables, recommended PCB layout practices, ordering information, and an outline of the device packages.
| Resolution | 16 Bits |
|---|---|
| Maximum Throughput (wideband warp mode) | 2 MSPS |
| Integral Non‑Linearity (typical) | +0.5 LSB |
| Dynamic Range (typical) | 92.5 dB |
| Power Dissipation (typical, internal reference) | 70 mW @ 2 MSPS |
| Supply Voltage (AVDD/DVDD) | 2.5 V |
| Operating Temperature Range | -40 °C to +85 °C |
The AD7622 can sample at up to 2 MSPS in wideband warp mode.
AVDD and DVDD are 2.5 V, while OVDD can be between 2.3 V and 3.6 V.
Analog and digital ground planes should be joined at a single star‑ground point, preferably directly under the AD7622.