AD5697R Datasheet

• Low drift 2.5 V reference: 2 ppm/°C typical
• Tiny package: 3 mm × 3 mm, 16-lead LFCSP
• Total unadjusted error (TUE): ±0.1% of full-scale range (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
• Low glitch: 0.5 nV-sec
• 400 kHz I²C-compatible serial interface
• Low power: 3.3 mW at 3 V
• 2.7 V to 5.5 V power supply
• −40°C to +105°C temperature range

• Base station power amplifiers
• Process controls (programmable logic controller [PLC] I/O cards)
• Industrial automation
• Data acquisition systems

The AD5697R, a member of the nanoDAC+™ family, is a low power, dual, 12-bit buffered voltage output digital-to-analog converter (DAC). The device includes 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 AD5697R 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 and a TSSOP package.

The AD5697R also incorporates 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. It 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 AD5697R uses a versatile 2-wire serial interface that operates at clock rates up to 400 kHz and includes a V_LOGIC pin intended for 1.8 V/3 V/5 V logic.

PRODUCT HIGHLIGHTS

1. Precision DC Performance.
   • TUE: ±0.1% of FSR maximum
   • Offset error: ±1.5 mV maximum
   • Gain error: ±0.1% of FSR maximum
2. Low Drift 2.5 V On-Chip Reference.
   • 2 ppm/°C typical temperature coefficient
   • 5 ppm/°C maximum temperature coefficient
3. Two Package Options.
   • 3 mm × 3 mm, 16-lead LFCSP
   • 16-lead TSSOP