• AD598AD
  • AD598AD
  • AD598AD
  • AD598AD
  • AD598AD
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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. The AD598 contains a low distortion sine wave oscillator to drive the LVDT primary. The LVDT secondary output consists of two sine waves that drive the AD598 directly. The AD598 operates upon the two signals, dividing their difference by their sum, producing a scaled unipolar or bipolar dc output. The AD598 uses a unique ratiometric architecture (patent pending) to eliminate several of the disadvantages associated with traditional approaches to LVDT interfacing. The benefits of this new circuit are: no adjustments are necessary, transformer null voltage and primary to secondary phase shift does not affect system accuracy, temperature stability is improved, and transducer interchangeability is improved.

operating_voltage36.0 V (max)
reach_svhc_complianceNo SVHC
rohs_statusNon-Compliant
supply_voltage_dc13.0 V (min)
lead_free_statusContains Lead
mounting_styleThrough Hole
temperature_coefficient250 ppm/°C
packagingTube, Bulk
case_packageDIP
bandwidth20.0 kHz
lifecycle_statusActive
output_voltage24.0 V
output_current6.00 mA (min)
pin_count20
Bandwidth20kHz
Supply Voltage Min13V
Supply Voltage Max36V
Amplifier Case StyleDIP
No. of Pins20Pins
Operating Temperature Min-40°C
Operating Temperature Max85°C
PackagingEach
Product RangeAD598 Series
Automotive Qualification Standard-
RoHS Phthalates CompliantYes
MSL-
SVHCNo SVHC (07-Jul-2017)
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