Data Converters
Digital-to-Analog Converters
MAX5322

MAX5322

±10V, Dual, 12-Bit, Serial, Voltage-Output DAC


Description

The MAX5322 dual, 12-bit, serial-interface, digital-to-analog converter (DAC) provides bipolar ±5V to ±10V outputs from ±12V to ±15V analog power-supply voltages, or unipolar 5V to 10V outputs from a single 12V to 15V analog power-supply voltage.

The MAX5322 features excellent linearity with both integral nonlinearity (INL) and differential nonlinearity (DNL) guaranteed to ±1 LSB (max). The device also features a fast 10µs to 0.5 LSB settling time, and a hardware-shutdown feature that reduces current consumption to 2.8µA. The output goes to midscale at power-up in bipolar mode (0V), and to zero scale at power-up in unipolar mode (0V). A clear input (active-low CLR) asynchronously clears the DAC register and sets the outputs to 0V. The outputs can be asynchronously updated with the load DAC (active-low LDAC) input.

The device features a fast 10MHz SPI™-/QSPI™-/MICROWIRE™-compatible serial interface that operates with 3V or 5V logic. Additional features include a serial-data output (DOUT) for daisy chaining and read-back functions. The MAX5322 requires external reference voltages of 2V to 5.25V and is available in a 28-pin SSOP package that operates over the extended (-40°C to +85°C) temperature range.
MAX5322: Functional Block Diagram MAX5322: Functional Block Diagram Enlarge++

Key Features

  • Unipolar or Bipolar Output-Voltage Ranges
    • Unipolar: 0 to +2 x VREF (Single or Dual Supply)
    • Bipolar: -2 x VREF to +2 x VREF (Dual Supply)
  • Guaranteed INL ≤ ±1 LSB (max)
  • Guaranteed Monotonic: DNL ≤ ±1 LSB (max)
  • 10µs Settling Time to 0.5 LSB
  • Low 2.8µA Shutdown Current
  • Fast 10MHz SPI-/QSPI-/MICROWIRE-Compatible Serial Interface
  • Power-On Reset Sets DAC Output to 0V
  • Schmitt Trigger Inputs for Direct Optocoupler Interface
  • Serial-Data Output Allows Daisy-Chaining of Devices
  • 28-Pin SSOP (8mm x 10mm)

Applications/Uses

  • Analog I/O Boards
  • Automatic Test Equipment (ATE)
  • Data Acquisition Systems
  • Industrial Automation
  • Industrial Process Controls
  • Motor Control
Part Number Resolution
(bits)
Channels Output Type Reference INL
(±LSB)
Interface Supply Range
(V)
ICC
(mA)
Settling Time
(µs)
Oper. Temp.
(°C)
Budgetary
Price
max max max typ See Notes
MAX5322  12 2 Voltage- Buffered Ext. 1 Serial - SPI 15.75 16.2 10 -40 to +85 $10.22 @1k
See All Precision DACs (287)

Pricing 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 and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.


 

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