AD5676 Datasheet

• High performance
  • High relative accuracy (INL): ±3 LSB maximum at 16 bits
  • Total unadjusted error (TUE): ±0.14% of FSR maximum
  • Offset error: ±1.5 mV maximum
  • Gain error: ±0.06% of FSR maximum
• Wide operating ranges
  • −40°C to +125°C temperature range
  • 2.7 V to 5.5 V power supply
• Easy implementation
  • User selectable gain of 1 or 2 (GAIN pin/gain bit)
  • Reset to zero scale or midscale (RSTSEL pin)
  • 1.8 V logic compatibility
• 50 MHz SPI with readback or daisy chain
• 20-lead, TSSOP and LFCSP RoHS-compliant packages

• Optical transceivers
• Base-station power amplifiers
• Process control (PLC input/output cards)
• Industrial automation
• Data acquisition systems

The AD5676 is a low power, octal, 16-bit buffered voltage output digital-to-analog converter (DAC). The device includes a gain select pin, giving a full-scale output of V_REF (gain = 1) or 2 × V_REF (gain = 2). The AD5676 DAC operates from a single 2.7 V to 5.5 V supply and is guaranteed monotonic by design. The AD5676 is available in 20-lead TSSOP and LFCSP packages.

The internal power-on reset circuit and the RSTSEL pin of the AD5676 ensure that the output DACs power up to zero scale or midscale and then remain there until a valid write takes place. The AD5676 contains a per channel power-down mode that typically reduces the current consumption of the device to 1 µA.

The AD5676 employs a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz, and contains a V_LOGIC pin intended for 1.62 V to 5.5 V logic.