AD5683RARMZ-RL7

Overview

The AD5683RARMZ-RL7 is a single-channel, 16-bit buffered voltage output digital-to-analog converter (DAC) from the nanoDAC+ family. It features an internal 2.5 V reference with a typical drift of 2 ppm/°C and operates on a single 2.7 V to 5.5 V supply. The device offers selectable output spans of 0 V to VREF or 0 V to 2 × VREF, ensuring monotonicity by design. Key performance metrics include ±2 LSB maximum INL (B Grade), ±1 LSB DNL, and a settling time of 5 µs. It utilizes a 3-wire SPI interface compatible with 1.62 V logic levels and is housed in a 10-lead MSOP package.

Feature Summary

• 16-bit resolution with ±2 LSB maximum integral nonlinearity (INL) for B Grade devices.
• Integrated 2.5 V reference source with 2 ppm/°C typical temperature coefficient.
• Programmable output span: 0 V to VREF or 0 V to 2 × VREF.
• Low power consumption: 1.2 mW at 3.3 V; 2 µA maximum in power-down mode.

Applications

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

Procurement Notes

Verify the specific grade (A or B) required for INL specifications, as the datasheet distinguishes between ±8 LSB (A Grade) and ±2 LSB (B Grade). Confirm that the 10-lead MSOP package matches the PCB footprint requirements. Ensure the design supports the 1.62 V minimum logic voltage if operating at lower digital supply levels.

Selection Notes

Select this component when high relative accuracy and low drift are critical without external calibration. The AD5683R is suitable for applications requiring a rail-to-rail buffered output with up to 20 mA drive capability. Consider the AD5683 if an external reference is preferred, or the AD5682R/AD5681R for lower resolution needs within the same pin-compatible family.

Part Context

This part belongs to the AD5683R series, which includes 16-bit, 14-bit, and 12-bit variants (AD5683R, AD5682R, AD5681R). These devices share a common architecture and interface but differ in resolution and specific INL/DNL specifications. The 'ARMZ' suffix indicates the 10-lead MSOP package, while '-RL7' denotes the reel packaging format.

Replacement Considerations

Pin-compatible alternatives within the same family include the AD5682R (14-bit) and AD5681R (12-bit). For external reference configurations, the AD5683 is available. I2C-interface versions such as the AD5693R offer similar performance with a different serial protocol.