AD5686R/AD5685R/AD5684R is a 16/14/12-bit nanoDAC+ with 2 ppm/°C reference, SPI interface
The AD5684R is a 12‑bit nanoDAC+ device with a low‑power, quad‑channel architecture. It includes an internal 2.5 V reference with 2 ppm/°C temperature coefficient, selectable gain of 1 or 2, and a high‑speed 50 MHz SPI interface. The device operates from a 2.7 V to 5.5 V supply and offers up to 45 mA output current per channel.
The datasheet details electrical specifications, timing diagrams, AC characteristics, and ordering options. It also describes power‑down mode (4 µA per channel), Daisy‑chain operation, and recommended layout guidelines for optimal performance.
| Resolution | 12 bits |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V |
| Output Current | 45 mA per channel |
| Reference Temperature Coefficient | 2 ppm/°C typical |
| Package Size | 3 mm × 3 mm, 16‑lead LFCSP |
| Maximum SPI Clock Rate | 50 MHz |
Each channel draws about 4 µA at 3 V when in power‑down mode.
The device is rated for –40 °C to +105 °C operation.
The AD5684R can source or sink up to 45 mA per channel.