AD5721RBCPZ-RL7

Overview

The AD5721RBCPZ-RL7 is a single-channel, 12-bit serial input voltage output digital-to-analog converter (DAC) from Analog Devices. It features an integrated low-drift 2.5 V reference with ±2 ppm/°C typical temperature coefficient and internal reference buffers. The device supports eight software-programmable output ranges including unipolar (0 V to +5 V/+10 V/+16 V/+20 V) and bipolar (±3 V/±5 V/±10 V, −2.5 V to +7.5 V) configurations with 5% overrange capability. Key electrical specifications include a maximum total unadjusted error (TUE) of 0.1% FSR, guaranteed monotonicity within ±1 LSB, and a typical settling time of 7.5 μs. It operates on dual supplies ranging from −16.5 V to 0 V and +4.75 V to +30 V, or single supplies from +4.75 V to +30 V.

Feature Summary

• Integrated low-noise 2.5 V reference with ±2 ppm/°C drift
• Eight programmable output ranges with 5% overrange
• 12-bit resolution with ±0.5 LSB INL/DNL accuracy
• Asynchronous updating via LDAC and RESET functions

Applications

• Industrial automation systems
• Instrumentation and data acquisition
• Open/closed-loop servo control
• Programmable logic controllers

Procurement Notes

Verify the specific suffix 'RL7' corresponds to the tape and reel packaging format as indicated in distributor listings. Confirm that the 'B' grade designation aligns with the required integral nonlinearity specifications of ±0.5 LSB. Ensure the ordering part number matches the LFCSP package variant for thermal and mechanical compatibility.

Selection Notes

Select this component when a 12-bit resolution is sufficient compared to the 16-bit AD5761R variant. Verify that the required output range fits within the supported spans, noting that the 0 V to 16 V and 0 V to 20 V ranges require a 2 kΩ load while others support 1 kΩ. Ensure the system power supply allows for the necessary headroom relative to the selected output span.

Part Context

This part belongs to the AD5761R/AD5721R family of multiple range DACs. It shares the same architecture, pinout, and interface protocols as the 16-bit AD5761R but offers 12-bit resolution. The 'BCPZ' indicates the 16-lead LFCSP package, while 'RL7' denotes the reel packaging configuration.

Replacement Considerations

The AD5721BCPZ-RL7 is a related variant without the integrated reference. The AD5761R series serves as the 16-bit resolution alternative within the same package and interface standard.