The AD5398 is a single 10-bit DAC with 120 mA output current sink capability. It features an internal reference and operates from a single 2.7 V to 5.5 V supply. The DAC is controlled via a 2-wire (I2C-compatible) serial interface that operates at clock rates up to 400 kHz. The AD5398 incorporates a power-on reset circuit, which ensures that the DAC output powers up to 0 V and remains there until a valid write takes place.
The AD5398 is a single‑channel 10‑bit DAC that can sink up to 120 mA of current. It operates from a 2.7 V to 5.5 V supply and includes an internal reference, power‑on reset, and a power‑down mode that reduces consumption to nanamps.
It is targeted at consumer camera systems such as lens autofocus, image stabilization and optical zoom, as well as industrial uses like heater, fan, valve and linear actuator control. The device communicates via a 2‑wire I²C‑compatible serial interface and is specified for operation from –40 °C to +85 °C.
| Supply voltage range | 2.7 V to 5.5 V |
|---|---|
| Resolution | 10 bits |
| Maximum sink current | 120 mA |
| Power‑down current | 80 nA |
| Slew rate | 0.3 mA/µs |
| Maximum SCL clock frequency | 400 kHz |
| Operating temperature range | -40 °C to +85 °C |
The device operates from 2.7 V to 5.5 V.
It can sink up to 120 mA of current.
It uses a 2‑wire I²C‑compatible serial interface.
The DAC provides 10‑bit resolution.