AD5665RBRUZ-2REEL7

Overview

The AD5665RBRUZ-2REEL7 is a quad, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It features an on-chip 2.5 V reference with 5 ppm/°C temperature coefficient in the TSSOP package. The device operates on a single 2.7 V to 5.5 V supply and includes an I2C-compatible serial interface supporting standard, fast, and high-speed modes. Key specifications include ±8 LSB relative accuracy, ±1 LSB differential nonlinearity, and rail-to-rail output swing. It incorporates power-on reset, per-channel power-down, and hardware LDAC/CLR functions.

Feature Summary

• Quad 16-bit resolution with ±8 LSB relative accuracy and ±1 LSB DNL
• On-chip 2.5 V reference with 5 ppm/°C drift in TSSOP package
• I2C interface supporting standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes
• Rail-to-rail buffered voltage outputs with per-channel power-down

Applications

• Process control systems
• Data acquisition systems
• Portable battery-powered instruments
• Digital gain and offset adjustment circuits
• Programmable voltage and current sources

Procurement Notes

Verify the specific suffix -2REEL7 against the manufacturer's ordering guide to confirm packaging type and high-speed mode support. Ensure the design accounts for the 14-lead TSSOP pinout and required pull-up resistors on the SDA/SCL lines. Confirm RoHS compliance status for the specific reel batch.

Selection Notes

Select this component when four independent 16-bit channels are required with integrated precision referencing. The TSSOP package offers a 5 ppm/°C reference stability compared to 10 ppm/°C in LFCSP variants. Verify that the system bus supports the desired I2C clock speed, noting that high-speed mode requires specific capacitance constraints on the bus lines.

Part Context

This part belongs to the AD5625R/AD5645R/AD5665R series of low-power nanoDACs. It shares functional compatibility with other members of the family but differs in resolution and reference configuration. The -2 suffix typically denotes support for high-speed I2C modes, while REEL7 indicates tape-and-reel packaging for automated assembly.

Replacement Considerations

Direct replacements within the same family include AD5665RBRUZ for tube packaging or AD5665RBCPZ for LFCSP packaging. Note that LFCSP versions have a 10 ppm/°C reference drift compared to the 5 ppm/°C drift in the TSSOP version. SPI-based equivalents like the AD5664R require interface redesign.