The AD5686R/AD5685R/AD5684R are four‑channel, 16/14/12‑bit buffered voltage output DACs with an internal 2.5 V reference and SPI interface.
The AD5686R, AD5685R, and AD5684R belong to the nanoDAC+® family of low‑power, four‑channel buffered voltage output DACs. They provide 16‑, 14‑, or 12‑bit resolution, an internal 2.5 V, 2 ppm/°C reference, and a 1.8 V‑compatible SPI interface that can run up to 50 MHz.
Typical applications include optical transceivers, base‑station power amplifiers, PLC I/O cards, industrial automation, and data‑acquisition systems. The devices are offered in ultra‑compact 3 mm × 3 mm 16‑pin LFCSP and 16‑pin TSSOP packages. This manual is written in Chinese.
| Resolution | 16 bits (AD5686R), 14 bits (AD5685R), 12 bits (AD5684R) |
|---|---|
| Relative accuracy (INL) | ±2 LSB (16‑bit), ±1 LSB (14‑/12‑bit) |
| Supply voltage range | 2.7 V to 5.5 V |
| Output current capability | 20 mA per channel |
| Power consumption | 3.3 mW at 3 V |
| Operating temperature range | −40 °C to +105 °C |
The SPI interface can operate up to 50 MHz.
Each device has four independent DAC channels.
It includes a 2.5 V internal reference with a typical drift of 2 ppm/°C.