The MAX5742 quad, 12-bit, low-power, buffered voltage-output, digital-to-analog converter (DAC) 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 MAX5742'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 MAX5742 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 MAX5742's software-controlled power-down reduces supply current to less than 0.3µA and provides software-selectable output loads (1kΩ, 100kΩ, or high impedance) while in power-down. The MAX5742 is specified over the -40°C to +125°C automotive temperature range.
Key Features
Applications/Uses
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 12-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
Notes: **This pricing is BUDGETARY, for comparing similar parts. Prices are in
U.S. dollars and subject to change. Quantity pricing may vary
substantially and international prices may differ due to local
duties, taxes, fees, and exchange rates. For volume-specific prices
and delivery, please see the price and availability page
or contact an authorized distributor.
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