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Compatibility check: TE/MEAS FC23-1-1-0000-0500 (20 mV/V) load cell with ADI AD7730 front end

Thread Summary

The user inquires about interfacing a TE/MEAS FC23-1-1-0000-0500 load cell with an AD7730 bridge ADC. The support engineer recommends using newer ADCs like the AD4195-4 or AD4190-4 for better longevity and suggests a ratiometric configuration to maintain measurement accuracy. The circuit note CN0119 is provided as a reference for system design.
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Category: Datasheet/Specs
Product Number: AD7730

Hello — I’m planning to interface a TE/MEAS FC23-1-1-0000-0500 compression load cell to an ADI AD7730 bridge ADC and would like confirmation on compatibility and recommended configuration.

  • Hi  ,

    Would you be interested in using our newer ADCs? Like the AD4195-4 or AD4190-4 for your load cell application. It is a highly integrated, multichannel ADC with flexible features and is suitable also for load cell application. Our newer parts ensure longevity compared to our old parts.

    For load cell application, I would recommend to use a ratiometric configuration. In a ratiometric configuration, the ADC reference and the excitation of the load cell are derived from the same source. If the excitation source changes magnitude, the load cell output and the ADC reference scale by a similar amount, so the variation in the excitation source does not impact the accuracy of the measurement.

    You may use this circuit note, CN0119, as a reference in designing your system.

    Regards,

    JC