DAC60504

• Performance
  • INL: ±1 LSB Maximum at 16-Bit Resolution
  • TUE: ±0.1% of FSR Maximum
• Integrated 2.5 V Precision Internal Reference
  • Initial Accuracy: ±5 mV, Maximum
  • Low Drift: 2 ppm/°C Typical
• High Drive Capability: 20 mA With 0.5 V From Supply Rails
• Flexible Output Configuration
  • User Selectable Gain: 2, 1 or ½
  • Reset to Zero Scale or Midscale
• Wide Operating Range
  • Power Supply: 2.7 V to 5.5 V
  • Temperature: –40˚C to +125˚C
• 50-MHz, SPI-Compatible Serial Interface
  • 4-Wire Mode, 1.7 V to 5.5 V Operation
  • Daisy-Chain Operation
  • CRC Error Check
• Low Power: 0.7 mA/Channel at 5.5 V
• Small Package: 3-mm × 3-mm, 16-Pin WQFN

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The DAC80504, DAC70504, and DAC60504 (DACx0504) are a pin-compatible family of low-power, four-channel, buffered voltage-output, digital-to-analog converters (DACs) with 16-, 14-, and 12-bit resolution. The DACx0504 includes a low drift, 2.5-V internal reference, eliminating the need for an external precision reference in most applications. A user-selectable gain configuration provides full-scale output voltages of 1.25 V (gain = ½), 2.5 V (gain = 1), or 5 V (gain = 2). These devices operate from a single 2.7-V to 5.5-V supply, are specified monotonic, and provide high linearity of ±1 LSB INL.

Communication to the DACx0504 is performed through a 4-wire serial interface that operates at clock rates of up to 50 MHz. The VIO pin enables serial interface operation from 1.7 V to 5.5 V. The DACx0504 flexible interface enables operation with a wide range of industry-standard microprocessors and microcontrollers.

The DACx0504 incorporate a power-on-reset circuit that powers up and maintains the DAC outputs at either zero scale or midscale until a valid code is written to the device. These device consume a low current of 0.7 mA/channel at 5.5 V, making these devices an excellent choice for battery-operated equipment. A per-channel power-down feature reduces the device current consumption to 15 µA.

The DACx0504 is characterized for operation over the temperature range of –40°C to +125°C, and is available in a small, 3-mm × 3-mm QFN package.