ADA4558WHCPZ-R7

Overview

The ADA4558WHCPZ-R7 is a fully integrated bridge sensor signal conditioner IC featuring a LIN 2.1 compliant interface, nonlinearity correction, and temperature compensation. It operates from a supply voltage of 6 V to 18 V with a typical normal operation current of 7 mA at 25°C and 8.2 mA across the full temperature range. The device includes a programmable gain amplifier (PGA) with a gain range from 2.94 V/V to 971.10 V/V and a 14-bit ADC. System accuracy reaches 0.1% FSR over temperature. It functions within an operating temperature range of −40°C to +150°C and is housed in a 4 mm × 4 mm, 20-lead LFCSP package.

Feature Summary

• Digitally programmable gain and offset voltage adjustment for precise sensor calibration.
• Internal or external temperature sensor compensation using first- or second-order algorithms.
• Sensor nonlinearity correction via internal hardware optimized for specific bridge sensors.
• EEPROM nonvolatile memory storage for calibration data and diagnostic information.

Applications

• Strain gage signal conditioning
• Pressure signal conditioner for automotive vehicles

Procurement Notes

Verify the component against official Analog Devices documentation to confirm specifications and authenticity. Ensure the ordering suffix matches the required packaging format. Check for any specific automotive qualification requirements if deploying in vehicle systems. Confirm availability through authorized distribution channels as stock levels may vary.

Selection Notes

Select this model when high system accuracy and automotive-grade reliability are required for bridge sensors. The wide gain range accommodates various sensor sensitivities. Verify that the application environment falls within the specified temperature limits. Consider the LIN interface compatibility with existing vehicle networks during system design.

Part Context

This component belongs to the ADA4558 family of sensor signal conditioners designed for automotive applications. It integrates analog front-end processing with digital correction capabilities. The WHCPZ-R7 designation indicates the automotive qualified version in a reel packaging format. It supports LIN 2.1 protocols for communication and diagnostics.

Replacement Considerations

Consult official Analog Devices documentation for confirmed substitute part numbers. Verify pinout compatibility and electrical specifications before substitution. Ensure any replacement meets the same automotive qualification standards and package dimensions.