AD5737ACPZ-RL7

Overview

The AD5737ACPZ-RL7 is a quad-channel, 12-bit current output digital-to-analog converter (DAC) featuring dynamic power control and HART connectivity. It operates with an analog supply range of 9 V to 33 V and a digital supply of 2.7 V to 5.5 V. The device provides current output ranges of 0 mA to 24 mA, 0 mA to 20 mA, or 4 mA to 20 mA. Key specifications include a maximum total unadjusted error (TUE) of ±0.1% with external RSET, a settling time of 15 µs, and on-chip diagnostics. It utilizes a versatile 3-wire serial interface compatible with SPI, QSPI, and Microwire standards.

Feature Summary

• Quad-channel 12-bit resolution with guaranteed monotonicity
• Integrated DC-to-DC boost converter for dynamic power control
• On-chip HART connectivity via dedicated CHART pins
• ±0.1% maximum total unadjusted error (TUE) with external resistor

Applications

• Process control systems
• Actuator control loops
• Programmable Logic Controllers (PLCs)
• HART network connectivity applications

Procurement Notes

Verify the specific suffix -RL7 indicates reel packaging when sourcing. Confirm the operating temperature range matches industrial requirements (-40°C to +105°C). Ensure the design supports the required analog supply voltage up to 33 V and digital logic levels between 2.7 V and 5.5 V. Check for compatibility with the 64-lead LFCSP package thermal constraints.

Selection Notes

Select this component for applications requiring simultaneous multi-channel current generation with HART protocol support. Consider the internal reference drift of ±10 ppm/°C if external precision references are not used. Evaluate the need for external RSET resistors to achieve optimal temperature stability and minimize TUE compared to internal settings.

Part Context

The AD5737 belongs to the Analog Devices DAC family designed for industrial automation. It complements companion products such as the AD5700 HART modem and ADuM1410 digital isolators. The device is part of a series that includes variants like the AD5755 and AD5735, offering different channel counts or performance characteristics for similar process control environments.

Replacement Considerations

Public confirmed substitute part numbers: AD5755, AD5755-1, AD5757, AD5735.