Maxim Integrated MAX5741AUB T

Description
The MAX5741 is a 10-bit, low-power, quad, voltage-output digital-to-analog converter (DAC) with a serial interface. It is packaged in a space-saving 10-pin μMAX package (5mm x 3mm). The wide supply voltage range of 2.7V to 5.5V and 229μA supply current accommodates low-power and low-voltage applications. DAC outputs employ on-chip precision output amplifiers that swing rail-to-rail. The MAX5741's reference input accepts a voltage range from 0 to VDD. In power-down, the reference input is high impedance, further reducing the system's total power consumption.
The 20MHz, 3-wire SPI, QSPI, MICROWIRE, and DSP-compatible serial interface saves board space and reduces the complexity of opto- and transformer-isolated applications. The MAX5741 on-chip power-on reset (POR) circuit resets the DAC outputs to zero and loads the output with a 100kΩ resistor to ground. This provides additional safety for applications that drive valves or other transducers that need to be off on power-up. The MAX5741's software-controlled power-down reduces supply current to less than 1μA and provides software-selectable output loads (1kΩ, 100kΩ, or high impedance) while in power-down. The MAX5741 is specified over the -40°C to 125°C extended temperature range and available in a 10-pin μMAX package.

Features
Ultra-low power consumption: 229μA at VDD = 3.6V, 271μA at VDD = 5.5V
Wide 2.7V to 5.5V single-supply range
10-pin μMAX package
0.3μA power-down current
Guaranteed 10-bit monotonicity ( 1LSB DNL)
Safe power-up reset to zero volts at DAC output
Three software-selectable power-down impedances (100kΩ, 1kΩ, Hi-Z)
Fast 20MHz, 3-wire SPI, QSPI, and MICROWIRE-compatible serial interface
Rail-to-rail output buffer amplifiers
Schmitt-triggered logic inputs for direct interfacing to optocouplers
Wide -40°C to 125°C operating temperature range

Applications
Automatic tuning
Gain and offset adjustment
Power amplifier control
Process control
I/O boards
Battery-powered instruments
VCO control