AD7715 is a 16-Bit, Sigma-Delta ADC with 450μA low power consumption, and it can operate on either 3V or 5V power supplies.
The AD7715 is a 16‑bit sigma‑delta analog‑to‑digital converter with programmable gain, differential inputs, and a three‑wire serial interface. It operates from a single 3 V or 5 V supply and offers low supply current and standby power consumption.
The document provides a functional block diagram, detailed specifications, timing characteristics, pin descriptions, calibration procedures, and example applications such as pressure and temperature measurement.
| Resolution | 16‑bit |
|---|---|
| Supply Current (3 V) | ≤ 450 pA |
| Unipolar Input Range | 0 mV‑20 mV, 0 mV‑80 mV, 0 V‑1.25 V, 0 V‑2.5 V |
| Integral Nonlinearity | +0.0015 % of FSR |
The device draws no more than 450 pA from a 3 V supply.
It supports unipolar ranges of 0‑20 mV, 0‑80 mV, 0‑1.25 V and 0‑2.5 V, as well as bipolar ranges of ±20 mV, ±80 mV, ±1.25 V and ±2.5 V.
The integral nonlinearity is specified as +0.0015 % of full‑scale range.