MAX5712

PRODUCTION

Low-Power, 12-Bit, Rail-to-Rail Voltage-Output Serial DAC in SOT23

Data Sheet (Rev. 4) Product Selection Table
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Overview

  • Wide -40°C to +125°C Operating Temperature Range
  • Low 85µA Supply Current
  • Ultra Low 0.3µA Power-Down Supply Current
  • Single +2.7V to +5.5V Supply Voltage
  • Fast 20MHz 3-Wire SPI/QSPI/MICROWIRE and DSP-Compatible Serial Interface
  • Schmitt-Triggered Inputs for Direct Interfacing to Optocouplers
  • Rail-to-Rail Output Buffer
  • Tiny 6-Pin SOT23 Package
  • Power-On Reset to 0V
  • Three Software-Selectable Power-Down Output Impedances (100kΩ, 1kΩ, Hi-Z)

The MAX5712 is a small footprint, low-power, 12-bit digital-to-analog converter (DAC) that operates from a single +2.7V to +5.5V supply. The MAX5712 on-chip precision output amplifier provides rail-to-rail output swing. Drawing only 85µA supply current at +3V, the MAX5712 is ideally suited for portable battery-operated equipment.
The MAX5712 utilizes a 3-wire serial-interface that is compatible with SPI/QSPI™/MICROWIRE® and DSP-interface standards. All logic inputs are CMOS-logic compatible and buffered with Schmitt triggers to allow direct interfacing to optocouplers. The MAX5712 incorporates a power-on reset (POR) circuit that ensures the DAC begins in a zero-volt-state upon power-up. A power-down mode that reduces current consumption to 0.3µA may be initiated through a software command.
The MAX5712 is available in a small 6-pin SOT23 package. For dual and quad 12-bit versions, see the MAX5722 and MAX5742 data sheets. For single, dual, and quad 10-bit versions, see the MAX5711, MAX5721 and MAX5741 data sheets. The MAX5712 is specified over the automotive temperature range of -40°C to +125°C.

Applications

  • Automatic Tuning (VCO)
  • Battery-Powered Applications
  • Gain and Offset Adjustment
  • Power Amplifier Control
  • Process-Control I/O Boards
  • VCO Control
MAX5712
Low-Power, 12-Bit, Rail-to-Rail Voltage-Output Serial DAC in SOT23
MAX5712: Functional Diagram
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Data Sheet 1

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