LVDT Sensor Amplifiers

Analog Devices LVDT Sensor Amplifiers, together with linear variable differential transformers (LVDTs), can be used to convert transducer mechanical position to a unipolar or bipolar dc voltage with a high degree of accuracy and repeatability. The LVDT Sensor Amplifier provides both the excitation signal for the LVDT sensor and the output voltage proportional to a linear displacement which can be further digitized by an external Analog to Digital Converter (ADC). With the addition of a few external passive components the user can customize setup to set loop bandwidth, excitation frequency and gain for improved flexibility. These products are available to interface to a wide range of LVDTs, including half bridge configuration and standard 4-wire and 5-wire sensor types.