Compensated and Calibrated Pressure Sensors: SDX

By Duff and Macintosh


  • 0...1 to 0...100 psi
  • Low cost DIP package
  • Temperature compensation
  • Calibrated zero and span
  • Small size
  • Low noise
  • High impedance for low power applications


  • Medical equipment
  • Computer peripherals
  • Pneumatic controls
  • HVAC




The SDX series sensors will provide a very cost effective solution for pressure applications that require small size plus performance. These internally calibrated and temperature compensated sensors give an accurate and stable output over a wide temperature range. This series is intended for use with non-corrosive, non-ionic working fluids such as air and dry gases.

Devices are available to measure absolute, differential and gage pressures from 1 psi (SDX01) up to 100 psi (SDX100). The absolute (A) devices have an internal vacuum reference and an output voltage proportional to absolute pressure. The output of the bridge is ratiometric to the supply voltage and operation from any D.C. supply voltage up to +20 V is acceptable.

The SDX devices feature an integrated circuit sensor element and laser trimmed thick film ceramic housed in a compact solvent resistant case. This package provides excellent corrosion resistance and isolation to external package stresses. The DIP package also provides convenient mounting and pressure ports for ease of use with standard plastic tubing for pressure connection.




Pressure ranges Absolute 0...15 to 0...100 psi
(0...1 to 0...7 bar)
Differential / Gage / Vacuum 0...1 to 0...100 psi
(0...70 mbar to 0...7 bar)
Output signal (typical)
at Vs = 12 V
0...90 mV
Non-linearity and hysteresis
(typical, combined)
±0.2 %FSS ±0.1 %FSS
Pressure connection tube fitting (Ø 2 mm)
Size without nipples and pins (approx.) 12 x 14 x 8 mm