AD5667RBRMZ-1

Overview

The AD5667RBRMZ-1 is a dual, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It features an on-chip 2.5 V reference with a temperature coefficient of 5 ppm/°C, enabling a full-scale output range of 5 V. The device operates on a single 2.7 V to 5.5 V supply and includes a power-on reset circuit that ensures outputs initialize to 0 V. It utilizes an I2C-compatible serial interface supporting standard, fast, and high-speed modes. Key specifications include ±1 LSB differential nonlinearity, guaranteed monotonicity by design, and per-channel power-down capability reducing current consumption to 480 nA at 5 V.

Feature Summary

• Dual 16-bit resolution with rail-to-rail buffered voltage outputs
• Integrated 2.5 V precision reference (5 ppm/°C) for 5 V full-scale range
• Power-on reset ensures DAC outputs start at 0 V scale
• I2C-compatible serial interface with up to 3.4 MHz high-speed mode

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Programmable voltage and current sources

Procurement Notes

Verify the ordering suffix '-1' against the manufacturer's official documentation to confirm the specific power-on reset behavior. Ensure the required package type (MSOP-10) matches the design constraints. Confirm availability through authorized distributors as stock levels vary.

Selection Notes

Select this part when a dual-channel, 16-bit DAC with an integrated reference is required. The '-1' suffix indicates a power-on reset to zero scale, which is critical for safety in motor or laser applications. Compare with the '-2' variant if mid-scale initialization is preferred. Ensure the I2C address configuration via the ADDR pin meets system requirements.

Part Context

This component belongs to the AD5627R/AD5647R/AD5667R series of low-power nanoDACs. It shares pin compatibility with the 12-bit (AD5627R) and 14-bit (AD5647R) variants, allowing for easy upgrades in resolution without PCB redesign. The 'R' suffix denotes the inclusion of an internal reference, while 'BRMZ' specifies the industrial temperature grade and MSOP-10 package.

Replacement Considerations

The AD5667RBRMZ-2 is a direct functional substitute within the same package but differs in power-on reset behavior, initializing to midscale instead of zero. For external reference designs, the AD5667BRMZ is available but lacks the internal reference.