AD5665RBCPZ-REEL7

Overview

The AD5665RBCPZ-REEL7 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 a temperature coefficient of 10 ppm/°C in the LFCSP package, enabling a full-scale output range of 5 V. The device operates from a single 2.7 V to 5.5 V supply and includes a power-on reset circuit for defined startup states. It utilizes a 2-wire I2C-compatible serial interface supporting standard (100 kHz), fast (400 kHz), and high-speed (3.4 MHz) modes. Key specifications include a settling time of 4 µs, guaranteed monotonicity by design, and per-channel power-down capability.

Feature Summary

• Quad 16-bit resolution with rail-to-rail buffered voltage outputs
• Integrated 2.5 V on-chip reference (10 ppm/°C TC in LFCSP)
• I2C-compatible serial interface with up to 3.4 MHz high-speed mode
• Power-on reset to zero scale or midscale via hardware pin

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 'BCPZ' against the manufacturer's ordering guide to confirm the exact reference configuration and grade. The '-REEL7' designation indicates tape-and-reel packaging; ensure the reel quantity matches system requirements. Confirm that the LFCSP package thermal characteristics meet the application's heat dissipation needs.

Selection Notes

Select this component when a quad-channel DAC with integrated precision reference is required. The LFCSP package provides a compact footprint but requires careful PCB layout for thermal management. Ensure the host microcontroller supports the desired I2C clock speed, as high-speed mode imposes strict timing constraints on bus capacitance and rise/fall times.

Part Context

This part belongs to the AD56x5R series, which are low-power, quad nanoDACs. It is functionally similar to the AD5665RBRUZ but differs in package type (LFCSP vs. TSSOP) and potentially internal reference temperature coefficients. The AD5665RBCPZ-REEL7 is specifically packaged for automated surface-mount assembly.

Replacement Considerations

The AD5665RBRUZ-2 is a pin-compatible alternative in a 14-lead TSSOP package. Note that the TSSOP version may have different thermal impedance and reference temperature coefficient specifications compared to the LFCSP variant.