This document describes the features and characteristics of the AD7665 model from Analog Devices, including 16-bit, 570 kSPS CMOS ADC, built-in control logic and calibration circuitry, multiple analog input voltage ranges, parallel and serial interfaces, etc.
The AD7665 is a 16‑bit, 570 kSPS charge‑redistribution SAR analog‑to‑digital converter that operates from a single 5 V supply. It offers high‑speed throughput, low power dissipation, and a variety of input voltage ranges for both bipolar and unipolar configurations.
The document includes detailed electrical specifications, timing diagrams, pin‑function tables, absolute maximum ratings, and an ordering guide. It also describes the serial and parallel interfaces, power‑down mode, and provides definitions of key performance metrics such as INL, SNR, and THD.
| Resolution | 16 Bits |
|---|---|
| Power Dissipation (Typical) | 64 mW |
| Analog Input Voltage Range (Bipolar) | +10 V, +5 V, +2.5 V |
| Integral Nonlinearity (INL) | +2.5 LSB Max |
| Signal‑to‑Noise Ratio (Typical) | 90 dB @ 180 kHz |
The AD7665 typically dissipates 64 mW.
Bipolar ranges of +10 V, +5 V, +2.5 V and unipolar ranges of 0‑10 V, 0‑5 V, 0‑25 V are supported.