AD5679 & AD5674: 16-Ch, 16-/12-Bit nanoDAC+ Devices with SPI Interface

With the AD5674/AD5674R/AD5679/AD5679R family, Analog Devices has created a 2x higher channel density than current 8-channel parts in the same 4x4 LFCSP footprint. This also eases the customer design-in experience, reducing the number of decoupling capacitors needed and general layout simplification.

The devices operate from a single, 2.7 V to 5.5 V supply range and are guaranteed monotonic by design. The AD5674/AD5674R/AD5679/AD5679R are available in a 28-lead lead frame chip scale package (LFCSP) and incorporate a power-on reset (POR) circuit that ensures that the DAC outputs power up to and remains at zero-scale or midscale until a valid write. The AD5674/AD5674R/AD5679/AD5679R contain a power-down mode that reduces the current consumption to 2 μA typical.

 

Product Highlights


  1. High channel density: 16 channels in 4 mm × 4 mm LFCSP.
  2. High relative accuracy (integral nonlinearity (INL)) ±4 LSB maximum.
  3. Low drift, 2.5 V, on-chip reference.

 

Applications


  • Communications: Optical, High Density
  • Instrumentation: Monitoring and control
  • Industrial Automation: Biasing and control

 

Features and Benefits


  • High performance High relative accuracy (INL): ±4 LSB maximum at 16 bits (AD5679/AD5679R)
    • TUE: ±0.14% of FSR maximum
    • Offset error: ±1.5 mV maximum
    • Gain error: ±0.06% of FSR maximum
    • Low drift, 2.5 V voltage reference temperature coefficient: 2 ppm/°C typical
    • 40 mA short-circuit current
  • Wide operating ranges−40°C to +125°C temperature range
    2.7 V to 5.5 V power supply range
  • Simplified implementationUser selectable gain of 1 or 2 (GAIN pin)
    1.8 V logic compatibility
  • 50 MHz serial peripheral interface (SPI) with readback or daisy chain
  • 28-lead, 4 mm × 4 mm, RoHS compliant LFCSP

Block Diagrams and Tables

AD5674-5674R-5679-5679R-fbl

AD5674-5674R-5679-5679R-pc

Related Evaluation Board

EVAL-AD5679RSDZ

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AD5679RBCPZ-1

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EVAL-AD5679RSDZ

Analog Devices Data Conversion Development Boards and Kits View

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