AD5629R/AD5669R are low power octal DACs with 5 ppm/°C on-chip reference. They are suitable for applications such as process control, data acquisition systems, and portable battery-powered instruments.
The AD5629R and AD5669R are octal DACs offering 12‑bit (AD5629R) or 16‑bit (AD5669R) resolution. They include an on‑chip reference (1.25 V or 2.5 V, 5 ppm/°C) and support standard (100 kHz) and fast (400 kHz) I²C communication modes. Power‑down currents are as low as 400 nA at 5 V, making them suitable for battery‑powered instruments.
The devices operate from a single supply of 2.7 V to 5.5 V, provide rail‑to‑rail output (0 V to VDD), and feature programmable power‑down modes, LDAC update control, and extensive pin functions for flexible system integration. Recommended PCB layout includes separate analog and digital grounds and close‑by decoupling capacitors.
| Resolution (AD5629R) | 12 bits |
|---|---|
| Resolution (AD5669R) | 16 bits |
| Power‑down current (5 V) | 400 nA |
| Supply voltage range | 2.7 V to 5.5 V |
| On‑chip reference voltage | 1.25 V or 2.5 V |
| Output voltage range | 0 V to VDD |
The device draws as little as 400 nA at a 5 V supply (200 nA at 3 V).
Both standard mode at 100 kHz and fast mode at 400 kHz are supported.
The DACs operate from –40 °C to +105 °C.