AD5755BCPZ

Overview

The AD5755BCPZ is a quad-channel, 16-bit digital-to-analog converter (DAC) from Analog Devices Inc., housed in a 64-lead LFCSP package. It supports simultaneous voltage and current outputs on the same pin, with configurable ranges including 0 V to 5 V, 0 V to 10 V, ±5 V, ±10 V, 0 mA to 20 mA, 4 mA to 20 mA, and 0 mA to 24 mA. The device features dynamic power control via an integrated DC-to-DC boost converter that regulates output driver voltage between 7.4 V and 29.5 V to minimize thermal dissipation. It operates on analog supplies of −26.4 V to +33 V and digital supplies of 2.7 V to 5.5 V, utilizing a 3-wire serial interface compatible with SPI standards.

Feature Summary

• 16-bit resolution with guaranteed monotonicity and ±0.04% TUE for voltage outputs.
• Integrated dynamic power control using four independent DC-to-DC converters to optimize thermal performance.
• Versatile 3-wire serial interface supporting clock rates up to 30 MHz with optional CRC-8 error checking.
• On-chip diagnostics including open/short circuit detection, overtemperature monitoring, and watchdog timer.

Applications

• Process control systems
• Actuator control circuits
• Programmable Logic Controllers (PLCs)

Procurement Notes

Verify the B version suffix indicates specific accuracy grades compared to the A version. Confirm the REEL7 or standard packaging format matches the required handling specifications. Ensure the LFCSP-64 footprint aligns with the PCB layout guidelines provided in the datasheet for optimal thermal management.

Selection Notes

Select the AD5755BCPZ when high precision and multi-channel output are required in industrial environments. The B version offers tighter total unadjusted error specifications than the A version. Consider the external 5 V supply requirement for the internal DC-to-DC converters if dynamic power control is enabled for current mode applications.

Part Context

The AD5755 belongs to the AD5755 family, which includes variants like the AD5755-1 and AD5757. It is designed as a companion to external references such as the ADR445 and digital isolators like the ADuM1410. The component serves as a core signal generation element in distributed control systems requiring robust fault detection and programmable output ranges.

Replacement Considerations

The AD5755-1 is listed as a companion product within the same family. Verify pin compatibility and software register mapping before substitution, as interface or feature differences may exist between revisions.