General Description

The MAX5105/MAX5106 nonvolatile, quad, 8-bit digital-to-analog converters (DACs) operate from a single +2.7V to +5.5V supply. An internal EEPROM stores the DAC states even after power is removed. Data from these nonvolatile registers automatically initialize the DAC outputs and operating states during power-up. Precision internal buffers swing Rail-to-Rail®, and the reference input range includes both ground and the positive rail.

Features

♦ On-Chip EEPROM Stores DAC States

♦ Power-On Reset Initialization of All Registers to Prestored States

♦ +2.7V to +5.5V Single-Supply Operation

♦ Four 8-Bit DACs with Independent High and Low Reference Inputs (MAX5105)

♦ Ground to VDD Reference Input Range

♦ Rail-to-Rail Output Buffers

♦ Low 1mA Supply Current

♦ Low Power 10µA (max) Shutdown Mode

♦ Small 20- or 16-Pin QSOP Package

♦ SPI™/QSPI™/MICROWIRE™-Compatible Serial Interface

♦ Asynchronous MUTE Input (MAX5105)

♦ RDY/BSY Pin to Indicate Memory Status (MAX5105)

♦ Wide Operating Temperature Range (-40°C to +85°C)

Applications

    Digital Gain and Offset Adjustments

    Programmable Attenuators

    Portable Instruments

    Power-Amp Bias Control