AD5694RARUZ-RL7

Overview

The AD5694RARUZ-RL7 is a quad, 12-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It integrates a 2.5 V internal reference with a typical temperature coefficient of 2 ppm/°C and supports a user-selectable gain of 1 or 2 via the GAIN pin. The device operates on a single 2.7 V to 5.5 V supply and features a 400 kHz I2C-compatible serial interface with 1.8 V logic compatibility. Key electrical parameters include a maximum settling time of 7 µs, a total unadjusted error (TUE) of ±0.1% FSR, and a low glitch impulse of 0.5 nV-sec. It is housed in a 16-lead TSSOP package.

Feature Summary

• Quad 12-bit resolution with high relative accuracy (INL: ±1 LSB max).
• Integrated 2.5 V reference with 2 ppm/°C typical drift.
• User-selectable gain (×1 or ×2) for full-scale outputs of 2.5 V or 5 V.
• Power-on reset circuit with RSTSEL pin for zero-scale or midscale initialization.

Applications

• Optical transceivers
• Base-station power amplifiers
• Process control (PLC I/O cards)
• Industrial automation
• Data acquisition systems

Procurement Notes

Verify the specific ordering suffix RL7 corresponds to the reel packaging configuration required for your assembly line. Confirm that the A-grade or B-grade performance specifications meet your design tolerances. Ensure the 16-TSSOP footprint matches your PCB layout guidelines before finalizing procurement.

Selection Notes

Select this component when a quad-channel DAC with integrated precision reference is required. The I2C interface minimizes pin count compared to SPI alternatives. Consider the GAIN pin configuration to determine if the 2.5 V or 5 V output span fits your signal requirements. Verify that the 7 µs settling time satisfies your system's update rate constraints.

Part Context

This part belongs to the AD5696R/AD5695R/AD5694R family, differentiated by resolution (16-bit, 14-bit, and 12-bit respectively). All share the same pinout, interface, and internal reference architecture. The AD5694R specifically targets applications where 12-bit accuracy is sufficient, offering lower power consumption and cost compared to higher-resolution variants.

Replacement Considerations

The AD5694ARUZ is a compatible alternative within the same family but utilizes an external reference configuration rather than the internal reference found in the AD5694R series. Verify reference requirements when substituting.