GENERAL DESCRIPTION

The AD5301/AD5311/AD53211 are single 8-/10-/12-bit, buffered, voltage-output DACs that operate from a single 2.5 V to 5.5 V supply, consuming 120 μA at 3 V. The on-chip output amplifier allows rail-to-rail output swing with a slew rate of 0.7 V/μs. It uses a 2-wire (I2C-compatible) serial interface that operates at clock rates up to 400 kHz. Multiple devices can share the same bus.

FEATURES

AD5301: buffered voltage output 8-bit DAC

AD5311: buffered voltage output 10-bit DAC

AD5321: buffered voltage output 12-bit DAC

6-lead SOT-23 and 8-lead MSOP packages

Micropower operation: 120 μA at 3 V

2-wire (I2C-compatible) serial interface

Data readback capability

2.5 V to 5.5 V power supply

Guaranteed monotonic by design over all codes

Power-down to 50 nA at 3 V

Reference derived from power supply

Power-on reset to 0 V

On-chip rail-to-rail output buffer amplifier

3 power-down functions

APPLICATIONS

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

Programmable attenuators