Octal, 12-Bit DAC+ with 2 ppm/°C Reference, I Interface

The AD5671R/AD5675R are low power, octal, 12-/16-bit buffered voltage output digital-to-analog converters (DACs). They 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 and are guaranteed monotonic by design. The AD5671R/AD5675R are available in a 20-lead TSSOP and in a 20-lead LFCSP and incorporate a power-on reset circuit and a RSTSEL pin that ensures the DAC outputs power up to zero scale or midscale and remain there until a valid write. The AD5671R/AD5675R contain a power-down mode, reducing the current consumption to 1 μA typical while in power-down mode.

Product Highlights

* High Relative Accuracy (INL).

AD5671R (12-bit): ±1 LSB maximum

AD5675R (16-bit): ±3 LSB maximum

* Low Drift 2.5 V On-Chip Reference

Applications

* Optical transceivers

* Base-station power amplifiers

* Process control (PLC input/output cards)

* Industrial automation

* Data acquisition systems

* 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

* Low drift 2.5 V reference:

2 ppm/°C typical

* 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/bit)

* 1.8 V logic compatibility

* 400 kHz I2C-compatible serial interface

* 20-lead, RoHS-compliant TSSOP and LFCSP