AD5671RBCPZ-REEL7

Overview

The AD5671RBCPZ-REEL7 is an octal, 12-bit buffered voltage output digital-to-analog converter (DAC) from Analog Devices. It features a 2.5 V internal reference with a typical drift of 2 ppm/°C and operates on a single 2.7 V to 5.5 V supply. The device includes a user-selectable gain of 1 or 2, enabling full-scale outputs of 2.5 V or 5 V respectively. It utilizes a 400 kHz I²C-compatible serial interface and supports 1.8 V logic compatibility. Key performance metrics include a maximum INL of ±1 LSB and a settling time of 8 µs. The component is housed in a 20-lead LFCSP package.

Feature Summary

• Octal architecture with 12-bit resolution and buffered voltage outputs
• Integrated 2.5 V reference with 2 ppm/°C temperature coefficient
• User-selectable gain (×1 or ×2) for 2.5 V or 5 V full-scale ranges
• 400 kHz I²C serial interface with 1.8 V logic compatibility

Applications

• Optical transceivers
• Base station power amplifiers
• Process control PLC input/output cards
• Industrial automation systems
• Data acquisition systems

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging when sourcing. Confirm the specific grade (A or B) matches application requirements, as specifications such as INL and offset error vary between grades. Ensure the LFCSP thermal design accounts for the specified junction temperature limits during operation.

Selection Notes

Select this model for applications requiring multiple low-power DAC channels with high accuracy. The 12-bit resolution and ±1 LSB INL suit precision control tasks. Consider the 1.8 V logic compatibility if interfacing with low-voltage microcontrollers. Verify that the capacitive load stability limits (2 nF without resistive load) are respected in the circuit design.

Part Context

This part belongs to the nanoDAC+ family, which integrates precision references and amplifiers into compact packages. The AD5671R variant specifically offers 12-bit resolution, distinguishing it from the 16-bit AD5675R within the same octal I²C series. The LFCSP package provides thermal efficiency suitable for dense PCB layouts.

Replacement Considerations

The AD5675RBCPZ-REEL7 is a compatible alternative offering 16-bit resolution within the same package and interface configuration. Other octal nanoDAC+ variants may require verification of pin compatibility and software register mapping.