General 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 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.

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

   Motor Control

   Industrial Process Controls

   Industrial Automation

   Automatic Test Equipment (ATE)

   Analog I/O Boards

   Data-Acquisition Systems