PRODUCT DESCRIPTION
The AD598 is a complete, monolithic Linear Variable Differential Transformer (LVDT) signal conditioning subsystem. It is used in conjunction with LVDTs to convert transducer mechanical position to a unipolar or bipolar dc voltage with a high degree of accuracy and repeatability. All circuit functions are included on the chip. With the addition of a few external passive components to set frequency and gain, the AD598 converts the raw LVDT secondary output to a scaled dc signal. The device can also be used with RVDT transducers.

FEATURES
    Single Chip Solution, Contains Internal Oscillator and Voltage Reference
    No Adjustments Required
    Insensitive to Transducer Null Voltage
    Insensitive to Primary to Secondary Phase Shifts
    DC Output Proportional to Position
    20 Hz to 20 kHz Frequency Range
    Single or Dual Supply Operation
    Unipolar or Bipolar Output
    Will Operate a Remote LVDT at Up to 300 Feet
    Position Output Can Drive Up to 1000 Feet of Cable
    Will Also Interface to an RVDT
    Outstanding Performance
        Linearity: 0.05% of FS max
        Output Voltage: 611 V min
        Gain Drift: 50 ppm/8C of FS max
        Offset Drift: 50 ppm/8C of FS max