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3V/5V, 12-Bit, Serial Voltage-Output Dual DACs with Internal Reference

Product Details

Key Features

Parametric specs for Precision DACs (< 1MHz)
Resolution (bits) 12
# Channels 2
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Int.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 3.6
ICC (mA) (max) 0.475
Settling Time (µs) (typ) 10
Package/Pins QSOP/16
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
7.09
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Simplified Block Diagram

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Parameters

Parametric specs for Precision DACs (&lt; 1MHz)
Resolution (bits) 12
# Channels 2
Interface Serial - SPI
Output Type Voltage- Buffered
Reference Int.
INL (±LSB) (max) 1
Supply Range (V) (min) 2.7
Supply Range (V) (max) 3.6
ICC (mA) (max) 0.475
Settling Time (µs) (typ) 10
Package/Pins QSOP/16
Oper. Temp. (°C) -40 to +85
Budgetary
Price (See Notes)
7.09

Key Features

  • Internal 10ppm/°C Precision Bandgap Reference
    • 2.465V (MAX5231)
    • 1.234V (MAX5230)
  • Single-Supply Operation
    • 5V (MAX5231)
    • 3V (MAX5230)
  • Low Supply Current
    • 470µA (MAX5231)
    • 420µA (MAX5230)
  • 13.5MHz SPI/QSPI/MICROWIRE-Compatible, 3-Wire Serial Interface
  • Pin-Programmable Power-Up Reset State to Zero or Midscale Output Voltage
  • Programmable Shutdown Modes with 1kΩ or 200kΩ Internal Output Loads
  • Recalls Output State Prior to Shutdown or Reset
  • Buffered Output Drives 5kΩ || 100pF Loads
  • Space-Saving 16-Pin QSOP Package

Applications/Uses

  • µP-Controlled Systems
  • Automated Test Equipment (ATE)
  • Digital Offset and Gain Adjustments
  • Industrial Process Controls
  • Motion Control

Description

The MAX5230/MAX5231 low-power, dual 12-bit voltage-output digital-to-analog converters (DACs) feature an internal 10ppm/°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 hardware-enabled 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 double-buffered 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.

Simplified Block Diagram

MAX5230, MAX5231: Functional Diagram MAX5230, MAX5231: Functional Diagram Zoom icon

Technical Docs

Support & Training

Search our knowledge base for answers to your technical questions.

Filtered Search

Our dedicated team of Applications Engineers are also available to answer your technical questions. Visit our support portal .

Sampling:
Selecting the Sample button above will redirect to the third-party ADI Sample Site. The part selected will carry over to your cart on this site once logged in. Please create a new account there if you have never used the site before. Contact SampleSupport@analog.com with any questions regarding this Sample Site.