GENERAL DESCRIPTION

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.

FEATURES

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

APPLICATIONS

Optical transceivers

Base station power amplifiers

Process control (PLC I/O cards)

Industrial automation

Data acquisition systems