The AD7707 is a high performance 3-channel 16-bit Sigma-Delta ADC with an input range of -10 V to +10 V, operating voltage of 3 V to 5 V, and output power dissipation of 1 mW.
The AD7707 is a three‑channel, 16‑bit sigma‑delta analog‑to‑digital converter designed for low‑frequency measurement applications. It features charge‑balancing architecture, programmable gain front‑end, and a three‑wire serial interface compatible with SPI, QSPI, and Microwire.
The device operates from a single 2.7 V–3.3 V or 4.75 V–5.25 V supply, offers both low‑level and high‑level input channels, and provides ultra‑low standby current. It is supplied in 20‑lead SOIC and TSSOP packages.
| Resolution | 16 bits |
|---|---|
| Power Dissipation | < 1 mW at 3 V |
| Standby Current | 8 pA max |
| Supply Voltage | 2.7 V–3.3 V or 4.75 V–5.25 V |
| High‑Level Input Range | +10 V, +5 V, 0 V to +10 V, 0 V to +5 V |
The AD7707 dissipates less than 1 mW when powered at 3 V.
The device’s standby (power‑down) current is specified as 8 pA maximum.
It operates from either 2.7 V–3.3 V or 4.75 V–5.25 V analog supply voltages.
The converter provides a 16‑bit resolution with no missing codes.