10-Bit Voltage-Output DAC in 8-Pin µMAX

The MAX5304 combines a low-power, voltage-output, 10-bit digital-to-analog converter (DAC) and a precision output amplifier in an 8-pin µMAX package. It operates from a single +5V supply, drawing less than 280µA of supply current.

The output amplifier's inverting input is available to the user, allowing specific gain configurations, remote sensing, and high output-current capability. This makes the MAX5304 ideal for a wide range of applications, including industrial process control. Other features include a software shutdown and power-on reset.

The serial interface is SPI™/QSPI™/MICROWIRE™ compatible. The DAC has a double-buffered input, organized as an input register followed by a DAC register. A 16-bit serial word loads data into the input register. The DAC register can be updated independently or simultaneously with the input register. All logic inputs are TTL/CMOS-logic compatible and buffered with Schmitt triggers to allow direct interfacing to optocouplers.

Applications

* Digital Gain and Offset Control * Industrial Process Controls * Microprocessor-Controlled Systems * Portable Test Instruments * Remote Industrial Controls

* 10-Bit DAC with Configurable Output Amplifier

* +5V Single-Supply Operation

* Low Supply Current

* 0.28mA Normal Operation

* 2µA Shutdown Mode

* Available in 8-Pin µMAX

* Power-On Reset Clears DAC Output to Zero

* SPI/QSPI/MICROWIRE Compatible

* Schmitt-Trigger Digital Inputs for Direct Optocoupler Interface