DAC8562T Digital-to-Analog Converters

By Texas Instruments 93

DAC8562T Digital-to-Analog Converters

Texas Instruments' DAC8562T device is a low-power, voltage-output, dual-channel, 16-bit DAC. This device include a 2.5 V, 4 ppm/°C internal reference, giving a full-scale output voltage range of 2.5 V or 5 V. The internal reference has an initial accuracy of ±5 mV and can source or sink up to 20 mA at the VREFIN/VREFOUT pin.

This device is monotonic, providing excellent linearity and minimizing undesired code-to-code transient voltages (glitches). It uses a versatile three-wire serial interface that operates at clock rates up to 50 MHz. The interface is compatible with standard SPI™, QSPI™, Microwire, and digital signal processor (DSP) interfaces. The DAC8562T device incorporates a power-on-reset circuit that ensures the DAC output powers up and remains at zero scale until a valid code is written to the device. This device contains a power-down feature that reduces current consumption to typically 550 nA at 5 V. The low power consumption, internal reference, and small footprint make this device ideal for portable, battery-operated equipment.

The DAC8562T device is available in VSSOP-10 and WSON-10 packages.

  • Relative accuracy: 4 LSB INL at 16-bits
  • Low glitch impulse: 0.1 nV-s
  • Bidirectional reference pin: input or 2.5 V output
    • 4 ppm/°C temperature drift (typ)
  • Power-on reset to zero scale or mid-scale
  • Low-power: 4 mW at 5 V AVDD
  • Wide power-supply range: 2.7 V to 5.5 V
  • 50 MHz SPI with Schmitt-triggered inputs
  • LDAC and CLR functions
  • Output buffer with rail-to-rail operation
  • Pin-to-pin compatible with DAC8562 family
  • 5 V TTL I/O enabled
  • Packages: WSON-10 (3 mm x 3 mm), VSSOP-10
  • Temperature range: -40°C to 125°C