Overview

Features and Benefits

  • LIN 2.1 compliant interface (bridge sensor signal, temperature)
  • Digitally programmable gain and offset voltage adjustment
  • Gain range from 2.94 V/V to 971.10 V/V
  • Sensor temperature compensation (first- or second-order)
  • Sensor nonlinearity correction (first- or second-order)
  • Internal or external temperature sensor compensation
  • EEPROM nonvolatile memory for calibration data
  • High system accuracy: 0.1% FSR over temperature
  • EMC and EMI protection
  • Fault protection for open circuits and short circuits
  • 4 mm × 4 mm, 20-lead LFCSP
  • 6 V to 18 V supply operation
  • −40°C to +150°C operating temperature range
  • AEC-Q100 qualified for automotive applications

Product Details

The ADA4558 is a fully integrated, sensor signal conditioner IC for bridge sensors. The device provides digital nonlinearity correction and temperature compensation via internal or external sensed temperatures using on-chip correction and calibration hardware that can be optimized for a specific bridge sensor. 

The ADA4558 utilizes a fourth-order digital correction algorithm and delivers a system accuracy of 0.1% full scale range (FSR) for bridge sensors with second-order nonlinearity sensitivity. The ADA4558 includes a local interconnect network (LIN) physical interface for single-wire, high voltage communications in automotive environments. LIN 2.1 and earlier versions are supported. The LIN interface allows access to measurements, end of line (EOL) calibration, and a wide range of diagnostic functions. 

The analog subsystem consists of an analog-to-digital converter (ADC) and a programmable gain amplifier (PGA) with a wide gain range from 2.94 V/V to 971.10 V/V. To minimize power supply noise, the bridge sensor is biased with an internal 4 V voltage regulator. The ADA4558 is fully specified from −40°C to +150°C. The device operates from battery supply voltages of 6 V to 18 V. The ADA4558 is available in a 4 mm × 4 mm, 20-lead lead frame chip scale package (LFCSP). 

Applications

  • Strain gage
    • Pressure signal conditioner for automotive vehicles 

Product Lifecycle icon-recommended Recommended for New Designs

This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.

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The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.


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Evaluation Boards Pricing displayed is based on 1-piece.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.