The AD7707 is a complete 3 V/5 V, ±10 V input range, 1 mW 3-channel 16-bit, Sigma-Delta ADC.
The AD7707 is a three‑channel, 16‑bit sigma‑delta ADC designed for low‑frequency measurement applications. It offers charge‑balancing conversion, programmable gain front‑end, and a three‑wire serial interface compatible with SPI, QSPI, and Microwire. The device can accept both low‑level and high‑level input signals and provides on‑chip calibration to eliminate gain and offset errors.
The datasheet includes detailed specifications such as supply voltage ranges (2.7‑3.3 V or 4.75‑5.25 V), power dissipation (1 mW max at 3 V), standby current (8 pA max), and pin configurations. Ordering information for SOIC and TSSOP packages and an evaluation board are also provided.
| Resolution | 16 bits |
|---|---|
| Low level input range | True Bipolar ±100 mV |
| Power dissipation | 1 mW max @ 3 V |
| Standby current | 8 pA max |
| Supply voltage | 2.7‑3.3 V or 4.75‑5.25 V |
The AD7707 provides 16‑bit resolution with no missing codes.
The device dissipates up to 1 mW at a 3 V supply.
It operates from 2.7‑3.3 V or 4.75‑5.25 V.
Standby current is as low as 8 pA (maximum).