The MAX5109 is a dual 8-bit D/A converter from TI. It uses the I2C interface and is powered by a single supply ranging from +2.7V to +5.25V. The maximum operating temperature is -40 to +85 degrees Celsius. The product has non-volatile registers, independent high and low reference voltage inputs, software controlled power down mode and software controlled mute mode.
The MAX5109 provides two independent 8‑bit digital‑to‑analog converters with non‑volatile registers that retain output settings after power‑down. It operates from a single +2.7 V to +5.25 V supply and features rail‑to‑rail output buffers, a 2‑wire serial interface compatible with I²C, and an asynchronous mute input.
The device is offered in a 16‑pin QSOP package and is rated for -40 °C to +85 °C operation. Key electrical characteristics include 200 µA supply current per DAC, less than 25 µA power‑down current, 8 µs settling time, and a maximum serial clock frequency of 400 kHz.
| Supply Current per DAC | 200 µA |
|---|---|
| Output Voltage Range | Rail‑to‑Rail (REFLO to REFH) |
| Resolution | 8 bits |
| Settling Time | 8 µs |
| Package | 16‑pin QSOP |
| Operating Temperature Range | -40 °C to +85 °C |
Each DAC consumes about 200 µA of supply current.