AD8556ACPZ-REEL7

Overview

The AD8556ACPZ-REEL7 is a zero-drift sensor signal amplifier manufactured by Analog Devices Inc. It features digitally programmable gain ranging from 70 to 1280 and an output offset voltage adjustable via a single-wire serial interface. The device incorporates internal EMI filters on the VNEG, VPOS, FILT, and VCLAMP pins. It operates within a supply voltage range of 4.5 V to 5.5 V and is specified for temperatures between −40°C and +140°C. Key electrical characteristics include a maximum input offset voltage of 12 µV at high temperatures and a maximum drift of 65 nV/°C. The component utilizes auto-zero and DigiTrim technologies to ensure accuracy.

Feature Summary

• Digitally programmable gain and output offset voltage via a single-wire serial interface
• Internal EMI filters integrated on power and control pins
• Open and short wire fault detection capabilities with automatic output clamping
• Stable operation with any capacitive load

Applications

• Pressure and position sensors
• Precision current sensing
• Strain gages

Procurement Notes

Verify the specific suffix ACPZ corresponds to the 16-lead LFCSP_WQ package configuration as indicated in the ordering guide. Confirm that the REEL7 designation matches the required tape and reel packaging format for automated assembly processes. Ensure compatibility with the specified operating temperature range and supply voltage requirements before finalizing procurement.

Selection Notes

Select this component when high precision is required for differential or single-ended sensor signals. The digitally programmable gain eliminates the need for external resistors, simplifying the design. Consider the built-in fault detection features for safety-critical applications. Verify that the available gain steps and offset resolution meet the system's linearity and accuracy specifications.

Part Context

This part belongs to the AD8556 series of sensor signal amplifiers. It is designed to convert variable sensor outputs into well-defined voltage ranges suitable for analog-to-digital conversion. The device integrates low noise, auto-zero, and DigiTrim technologies to minimize offset errors and drift over temperature variations.

Replacement Considerations

Public confirmed substitute part numbers are not provided in the source material.