GENERAL DESCRIPTION

The AD5337/AD5338/AD5339 are dual 8-, 10-, and 12-bit buffered voltage output DACs, respectively. Each part is housed in an 8-lead MSOP package and operates from a single 2.5 V to 5.5 V supply, consuming 250 μA at 3 V. On-chip output amplifiers allow rail-to-rail output swing with a slew rate of 0.7 V/μs. A 2-wire serial interface operates at clock rates up to 400 kHz. This interface is SMBus compatible at VDD

FEATURES

AD5337

2 buffered 8-bit DACs in 8-lead MSOP

AD5338, AD5338-1

2 buffered 10-bit DACs in 8-lead MSOP

AD5339

2 buffered 12-bit DACs in 8-lead MSOP

Low power operation: 250 μA @ 3 V, 300 μA @ 5 V

2-wire (I2C-compatible) serial interface

2.5 V to 5.5 V power supply

Guaranteed monotonic by design over all codes

Power-down to 80 nA @ 3 V, 200 nA @ 5 V

3 power-down modes

Double-buffered input logic

Output range: 0 V to VREF

Power-on reset to 0 V

Simultaneous update of outputs (LDAC function)

Software clear facility

Data readback facility

On-chip rail-to-rail output buffer amplifiers

Temperature range: −40°C to +105°C

APPLICATIONS

Portable battery-powered instruments

Digital gain and offset adjustment

Programmable voltage and current sources

Programmable attenuators

Industrial process control