The AD5625R/AD5645R/AD5665R, AD5625/AD5665 are low power, quad nanoDACs with 5 ppm/°C on-chip reference, I2C interface.
The AD5625R/AD5645R/AD5665R and AD5625/AD5665 are low‑power, quad nano‑DACs offering 12‑, 14‑, or 16‑bit resolution. The R‑series devices include an on‑chip reference (1.25 V or 2.5 V) while the non‑R versions require an external reference. All devices operate from a single 2.7 V to 5.5 V supply, provide rail‑to‑rail output, and feature an I²C‑compatible serial interface supporting standard (100 kHz), fast (400 kHz), and high‑speed (3.4 MHz) modes.
The document lists detailed electrical specifications, timing parameters, pin configurations, and functional block diagrams. It also includes application notes such as process control, data‑acquisition systems, and programmable voltage sources, as well as revision history and ordering information.
| Power Supply Voltage Range | 2.7 V to 5.5 V |
|---|---|
| Output Voltage Range | 0 V to Vop (internal reference disabled) or 0 V to 2×Vref (internal reference enabled) |
The AD5625R operates from 2.7 V to 5.5 V supply voltage.
The AD5665R provides 16‑bit resolution.
The internal reference is enabled via a software write after power‑up.