The AD5689R/AD5687R members of the nanoDAC+™ family are low power, dual, 16-/12-bit buffered voltage output digital-to-analog converters (DACs). The devices include a 2.5 V, 2 ppm/°C internal reference (enabled by default) and a gain select pin giving a full-scale output of 2.5 V (gain = 1) or 5 V (gain = 2). The devices operate from a single 2.7 V to 5.5 V supply, are guaranteed monotonic by design, and exhibit less than 0.1% FSR gain error and 1.5 mV offset error performance. Both devices are available in a 3 mm × 3 mm LFCSP and a TSSOP package.

The AD5689R/AD5687R also incorporate a power-on reset circuit and a RSTSEL pin that ensure that the DAC outputs power up to zero scale or midscale and remain there until a valid write takes place. Each part contains a per channel power-down feature that reduces the current consumption of the device to 4 μA at 3 V while in power-down mode.

The AD5689R/AD5687R use a versatile serial peripheral interface (SPI) that operates at clock rates up to 50 MHz. Both devices contain a VLOGIC pin that is intended for 1.8 V/3 V/5 V logic.

Product Highlights

• High Relative Accuracy (INL).AD5689RBRUZ-RL7 (16-bit): ±2 LSB maximumAD5687R (12-bit): ±1 LSB maximum

• Low Drift 2.5 V On-Chip Reference. 2 ppm/°C typical temperature coefficient 5 ppm/°C maximum temperature coefficient 

• Two Package Options. 3 mm × 3 mm, 16-lead LFCSP16-lead TSSOP

Feature

• High relative accuracy (INL): ±2 LSB maximum at 16 bits 

• Low drift 2.5 V reference: 2 ppm/°C typical

• Tiny package: 3 mm × 3 mm, 16-lead LFCSP

• TUE: ±0.1% of FSR maximum 

• Offset error: ±1.5 mV maximum

• Gain error: ±0.1% of FSR maximum

• High drive capability: 20 mA, 0.5 V from supply rails 

• User-selectable gain of 1 or 2 (GAIN pin) 

• Reset to zero scale or midscale (RSTSEL pin)

• 1.8 V logic compatibility

• 50 MHz SPI with readback or daisy chain

• Low glitch: 0.5 nV-sec

• Low power: 3.3 mW at 3 V 

• 2.7 V to 5.5 V power supply

• −40°C to +105°C temperature range

• AEC-Q100 qualified for automotive applications

AD5689R-EP supports defense and aerospace applications (AQEC standard)

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• Temperature range: −55°C to +125°C

• Controlled manufacturing baseline

• 1 assembly/test site

• 1 fabrication site

• Enhanced product change notification

• Qualification data available on request

• V62/14634 DSCC Drawing Number

Applications

• Optical transceivers

• Base station power amplifiers

• Process control (PLC I/O cards)

• Industrial automation

• Data acquisition systems