NE5521D
Układy do pomiaru przemieszczeń

The Philips Semiconductors NE/SA/SE5521 packs all the interface circuitry on one chip and provides a complete monolithic solution to all the signal conditioning required for position transducers.
Position transducers are widely used in industrial and commercial applications for measuring very small displacement or rotation. In fact, such transducers can be used for any application where a given parameter can be converted to linear or angular motion.
Weight, force, pressure, torque, and acceleration are often
converted to linear displacement or linear rotation using position transducers. The displacement or rotation information is next conditioned to provide an accurate measurement of the parameter.
SE5521 can interface with all of the popular position transducers such as the LVDT, RVDT, and LPDT. In addition, by varying the arrangement of external components, you can also configure a phase detector, an AC bridge circuit, and an AC voltmeter. For a brief description of the IC, see the section entitled “ A Look at the Signal Conditioning IC.

Dokumentacja pod adresem: http://www.wolumen53.com/pdf/ne5521.pdf