AD5667RBRMZ-2

Overview

The AD5667RBRMZ-2 is a dual-channel, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It integrates an on-chip 2.5 V reference with a temperature coefficient of 5 ppm/°C, enabling a full-scale output range of 0 V to 5 V. The device operates on a single 2.7 V to 5.5 V supply and features an I²C-compatible serial interface supporting standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes. Key specifications include ±1 LSB differential nonlinearity, ±12 LSB integral nonlinearity, and a settling time of 4 µs. It incorporates power-on reset to zero scale and per-channel power-down capabilities.

Feature Summary

• Dual 16-bit resolution with guaranteed monotonicity by design
• Integrated 2.5 V precision reference (5 ppm/°C) for 0–5 V output range
• I²C interface with high-speed mode support up to 3.4 MHz
• Power-on reset ensures outputs start at 0 V

Applications

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

Procurement Notes

Verify the suffix '-2' indicates the specific power-on reset behavior where outputs initialize to mid-scale code rather than zero scale, as defined in the datasheet ordering guide. Confirm the 'BRMZ' designation corresponds to the 10-lead MSOP package with the internal 2.5 V reference enabled via software. Ensure compatibility with the required I²C bus capacitance for high-speed operation.

Selection Notes

Select this part when a dual-channel DAC with integrated high-precision reference is required to minimize external component count. The -2 suffix is critical for applications needing mid-scale initialization upon power-up. Compare settling time and linearity requirements against the AD5667 (external reference only) if internal reference stability is not needed. Ensure the I²C address configuration via the ADDR pin meets system addressing constraints.

Part Context

This component belongs to the AD5627R/AD5647R/AD5667R nanoDAC series, which offers pin-compatible options in 12-bit, 14-bit, and 16-bit resolutions. The BRMZ variant specifically denotes the MSOP-10 package with an internal 2.5 V reference. The -2 suffix distinguishes it from the -1 suffix, which resets to zero scale. It serves as a compact solution for space-constrained industrial designs requiring precise analog output generation.

Replacement Considerations

The AD5667RBRMZ-1 is a direct functional substitute that differs only in the power-on reset state, initializing to 0 V instead of mid-scale. For designs requiring external references, the AD5667BRMZ variants are compatible but lack the internal reference circuitry.