AD5627R/AD5647R/AD5667R is a low power dual nanoDAC with 12-bit/14-bit/16-bit resolution, built-in 1.25V/2.5V, 5ppm/°C reference voltage, external reference voltage is also supported, operating voltage is 2.7V to 5.5V, ensures the design monotonicity, power-on reset to zero scale, each channel can be independently shut down, with hardware LDAC and CLR functions, I2C-compatible serial interface supports standard (100kHz), fast (400kHz) and high speed (3.4MHz) modes, can be applied to process control, data acquisition systems, portable battery powered instruments and other occasions.
The AD5627R/AD5647R/AD5667R and AD5627/AD5667 are low‑power, dual‑channel nano DACs available in 12‑, 14‑ and 16‑bit resolutions. They operate from a single 2.7 V to 5.5 V supply and include an on‑chip reference (1.25 V or 2.5 V, 5 ppm/°C) or can use an external reference.
The devices feature an I²C‑compatible serial interface supporting standard (100 kHz), fast (400 kHz) and high‑speed (up to 3.4 MHz) modes, per‑channel power‑down, hardware LDAC and CLR functions, and rail‑to‑rail output swing. The datasheet provides detailed electrical characteristics, timing diagrams, pin configurations, and ordering information.
| Supply Voltage (VDD) | 2.7 V to 5.5 V |
|---|---|
| Power‑down Current | 480 nA per channel at 5 V |
| Output Voltage Range | 0 V to VDD |
| I²C Maximum Speed | 3.4 MHz (high‑speed mode) |
The device operates from –40 °C to +105 °C.
The short‑circuit current is 30 mA at VDD = 5 V.