The AD7679 is a 18-bit, 570 kSPS SAR ADC with ±2.5 LSB INL, no missing codes, and no pipeline delay (SAR architecture).
The AD7679 is an 18‑bit charge‑redistribution SAR analog‑to‑digital converter that operates from a single 5 V supply. It offers a maximum throughput of 570 kSPS, an INL of ±2.5 LSB, and a dynamic range of 103 dB. The device supports both parallel (8‑, 16‑, or 18‑bit) and 3‑wire serial interfaces compatible with 3 V and 5 V logic levels.
Available in 48‑lead LQFP or LFCSP packages, the AD7679 operates from –40 °C to +85 °C. It includes an on‑board reference buffer, low power dissipation (76 mW @500 kSPS), and pin‑compatible upgrades for AD7674/AD7676/AD7678.
| Resolution | 18 Bits |
|---|---|
| Maximum Throughput | 570 kSPS |
| Integral Non‑Linearity (INL) | ±2.5 LSB max |
| Dynamic Range | 103 dB typ |
| Power Dissipation @500 kSPS | 76 mW |
| Supply Voltage | Single 5 V |
The AD7679 can sample at up to 570 kSPS.
It operates from a single 5 V supply.
The converter provides 18‑bit resolution.
Typical power dissipation is 76 mW at 500 kSPS.