AD5301BRM

The AD5301BRM is an 8-bit buffered voltage-output digital-to-analog converter (DAC) from Analog Devices. It features a string DAC architecture with a voltage-buffered output and a 2-wire I²C-compatible serial interface. The device operates from a single 2.5V to 5.5V power supply and consumes only 120 µA at 3V, making it suitable for battery-powered applications.

The DAC provides a rail-to-rail output swing through its on-chip output buffer amplifier, with a typical slew rate of 0.7 V/µs and a settling time of 8 µs. It offers typical integral nonlinearity of ±0.15 LSB and differential nonlinearity of ±0.02 LSB, ensuring accurate voltage output. The reference is derived from the power supply, providing the widest dynamic output range.

The AD5301BRM is available in an 8-TSSOP/8-MSOP surface-mount package (supplier device package: 8-MSOP). It operates over a temperature range of -40°C to 105°C. The device includes power-down functionality, reducing current consumption to 50 nA at 3V, which is beneficial for power-sensitive designs.

Typical applications include portable battery-powered instruments, digital gain and offset adjustment, programmable voltage and current sources, and programmable attenuators. The I²C interface supports clock rates up to 400 kHz and allows multiple devices to share the same bus.