Quad, 16-Bit DAC+™ with IC Interface

The AD5696, a member of the nanoDAC+™ family, is a low power, quad, 16-bit buffered voltage output DAC. The device includes a gain select pin giving a full-scale output of 0V to VREF (gain = 1) or 0V to 2VREF (gain = 2) The device operates from a single 2.7 V to 5.5 V supply, is guaranteed monotonic by design, and exhibits less than 0.1% FSR gain error and 1.5 mV offset error performance. The device is available in a 3 mm × 3 mm LFCSP package and in a TSSOP package.

The AD5696 incorporates a power-on reset circuit and a RSTSEL pin; the RSTSEL pin ensures that the DAC outputs power up to zero scale or midscale and remain at that level until a valid write takes place. The part contains a per-channel power-down feature that reduces the current consumption of the device in power-down mode to 4 µA at 3 V.

The AD5696 uses a versatile 2-wire serial interface that operates at clock rates up to 400 kHz and includes a VLOGIC pin intended for 1.8 V/3 V/5 V logic.

Product Hightlights

* High Relative Accuracy (INL): ±2 LSB maximum

* Excellent DC Performance:

Total unadjusted error: ±0.1% of FSR maximum

Offset error: ±1.5 mV maximum

Gain error: ±0.1% of FSR maximum

* Two Package Options: 3 mm × 3 mm, 16-lead LFCSP and 16-lead TSSOP

Applications

* Digital gain and offset adjustment

* Programmable attenuators

* Process control (PLC I/O cards)

* Industrial automation

* Data acquisition systems

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

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

* Total unadjusted error (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

* 400 kHz I2C-compatible serial interface

* 4 I2C addresses available

* Low glitch: 0.5 nV-sec

* Low power: 1.8 mW at 3 V

* 2.7 V to 5.5 V power supply

* −40°C to +105°C temperature range