AD5667RBCPZ-REEL7

Overview

The AD5667RBCPZ-REEL7 is a dual-channel, 16-bit buffered voltage-output digital-to-analog converter (DAC) from the nanoDAC family. It integrates an on-chip 1.25 V reference with a 5 ppm/°C temperature coefficient, enabling a full-scale output range of 2.5 V. Operating on a single 2.7 V to 5.5 V supply, the device features guaranteed monotonicity by design and 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.

Feature Summary

• Dual-channel 16-bit resolution with ±12 LSB integral nonlinearity (INL) and ±1 LSB differential nonlinearity (DNL).
• Integrated 1.25 V precision reference with 5 ppm/°C temperature coefficient for a 2.5 V full-scale output range.
• I²C-compatible serial interface supporting standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) clock rates.
• Per-channel power-down capability reducing current consumption to 480 nA at 5 V.

Applications

• Process control systems requiring precise analog signal generation.
• Data acquisition systems needing multi-channel voltage references.
• Portable battery-powered instruments due to low power consumption.
• Digital gain and offset adjustment circuits.
• Programmable voltage and current sources.

Procurement Notes

Verify the REEL7 suffix indicates tape-and-reel packaging when sourcing components. Confirm the B grade designation corresponds to the industrial temperature range of −40°C to +105°C. Ensure the internal reference configuration matches the 1.25 V specification for the BCPZ package variant. Cross-reference the manufacturer part number with authorized distributors to ensure authenticity and traceability.

Selection Notes

Select this component when a dual-channel solution with integrated precision reference is required to minimize external component count. The 16-bit resolution suits applications demanding high accuracy, while the I²C interface simplifies microcontroller connectivity. Consider the 4 µs settling time for bandwidth requirements. Verify that the 2.5 V output swing aligns with downstream input ranges, as the internal reference limits the maximum full-scale output.

Part Context

This part belongs to the AD5627R/AD5647R/AD5667R series, which offers pin-compatible options in 12-bit and 14-bit resolutions. The AD5667R variant specifically provides 16-bit performance within the same 10-lead MSOP or 3 mm x 3 mm LFCSP footprint. It shares functional similarities with the AD5667 but includes the onboard reference, distinguishing it from external-reference-only counterparts.

Replacement Considerations

The AD5667RBRMZ-2 serves as a pin-compatible alternative featuring a 2.5 V internal reference for a 5 V output range. For external reference designs, the AD5667BCPZ-REEL7 is a direct substitute without the onboard reference. Ensure replacement parts maintain the same I²C addressing and register compatibility.