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MAX5231

Maxim
Part Number MAX5231
Manufacturer Maxim
Description 3V/5V / 12-Bit / Serial Voltage-Output Dual DACs
Published Apr 29, 2005
Detailed Description 19-2332; Rev 1; 9/03 3V/5V, 12-Bit, Serial Voltage-Output Dual DACs with Internal Reference General Description The MAX...
Datasheet PDF File MAX5231 PDF File

MAX5231
MAX5231

Overview
19-2332; Rev 1; 9/03 3V/5V, 12-Bit, Serial Voltage-Output Dual DACs with Internal Reference General Description The MAX5230/MAX5231 low-power, dual 12-bit voltageoutput digital-to-analog converters (DACs) feature an internal 3ppm/°C precision bandgap voltage reference and precision output amplifiers.
The MAX5231 operates on a single 5V supply with an internal 2.
5V reference and features a 4.
095V full-scale output range.
The MAX5230 operates on a single 3V supply with an internal 1.
25V reference and features a 2.
0475V full-scale output range.
The MAX5231 consumes only 470µA while the MAX5230 consumes only 420µA of supply current.
Both devices feature low-power (2µA) software- and hardwareenabled shutdown modes.
The MAX5230/MAX5231 feature a 13.
5MHz SPI™-, QSPI™-, and MICROWIRE™-compatible 3-wire serial interface.
An additional data output (DOUT) allows for daisy-chaining and read back.
Each DAC has a doublebuffered digital input.
The MAX5230/MAX5231 feature two software-selectable shutdown output impedances: 1kΩ or 200kΩ.
A power-up reset feature sets DAC outputs at ground or at the midscale DAC code.
The MAX5230/MAX5231 are specified over the extended temperature range (-40°C to +85°C) and are available in 16-pin QSOP packages.
Features o Internal 3ppm/°C Precision Bandgap Reference 2.
465V (MAX5231) 1.
234V (MAX5230) o 10ppm/°C (max) Full-Scale Output Range 4.
095V (MAX5231) 2.
0475V (MAX5230) o Single-Supply Operation 5V (MAX5231) 3V (MAX5230) o Low Supply Current 470µA (MAX5231) 420µA (MAX5230) o 13.
5MHz SPI/QSPI/MICROWIRE-Compatible, 3-Wire Serial Interface o Pin-Programmable Power-Up Reset State to Zero or Midscale Output Voltage o Programmable Shutdown Modes with 1kΩ or 200kΩ Internal Output Loads o Recalls Output State Prior to Shutdown or Reset o Buffered Output Drives 5kΩ || 100pF Loads o Space-Saving 16-Pin QSOP Package MAX5230/MAX5231 Applications Industrial Process Controls Automatic Test Equipment Digital Offset and Gain Adjustment Motion Control µP-Con...


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