AD5683BCPZ-RL7

Overview

The AD5683BCPZ-RL7 is a single-channel, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It utilizes an external reference input and operates on a single supply of 2.7 V to 5.5 V. The device features a 3-wire SPI interface with clock rates up to 50 MHz. Key performance metrics include a maximum integral nonlinearity (INL) of ±2 LSB at 16 bits, a settling time of 5 µs, and a low glitch impulse of 0.1 nV-sec. It provides a high drive capability of 20 mA and selectable output spans of VREF or 2 × VREF.

Feature Summary

• 16-bit resolution with ±2 LSB maximum INL
• External reference input for flexible span selection
• 3-wire SPI serial interface supporting 50 MHz clock rates
• Low power consumption: 1.2 mW at 3.3 V

Applications

• Process control systems
• Data acquisition systems
• Programmable voltage sources
• Digital gain and offset adjustment

Procurement Notes

Verify the specific grade (A or B) and package variant against the datasheet Ordering Guide, as suffixes determine accuracy and pinout options like LDAC or RESET availability. Confirm that the external reference circuit meets the required drift specifications, as the AD5683 lacks an internal reference unlike other members of the nanoDAC+ family.

Selection Notes

Select this component when a single-channel 16-bit DAC with external reference flexibility is required. Ensure the application supports the 2.7 V to 5.5 V analog supply range and 1.62 V to 5.5 V logic supply. Consider the LFCSP-8 package constraints for thermal management and PCB layout, particularly regarding the exposed pad connection to ground.

Part Context

The AD5683 is part of the nanoDAC+ portfolio, distinguished by its requirement for an external reference voltage. This contrasts with the AD5683R, which includes an integrated 2.5 V reference. The BC in the model number indicates the B-grade accuracy level, ensuring tighter linearity specifications compared to the A-grade variant.

Replacement Considerations

The AD5683RBCPZ-RL7 serves as a direct functional replacement if an internal reference is acceptable, though it adds an on-chip 2.5 V reference. Other single-channel 16-bit DACs from Analog Devices may require interface or pinout adjustments.