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Germantown, Maryland
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Fri Jun 22 2018
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Compensated and Calibrated Pressure Sensors: SDX...IND4

By Duff and Macintosh

FEATURES

  • 0...5 to 0...10 inch H2O
  • Low cost DIP
  • Temperature compensated
  • Calibrated zero and span
  • Small size
  • Low noise
  • High impedance for low power applications

APPLICATIONS

  • Medical equipment
  • Computer peripherals
  • Pneumatic controls
  • HVAC
 

 

GENERAL DESCRIPTION

 

The SDX...IND4 sensors will provide a very cost effective solution for pressure applications that require small size plus performance. These calibrated and temperature compensated sensors give an accurate and stable output over a 0 to 50 °C temperature range. This series is intended for use with non-corrosive, non-ionic working fluids such as air, dry gases and the like.

The SDX...IND4 devices are specifically designed to measure low pressures. They feature a 0...5 or 0...10 inch H2O full scale range. 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...IND4 devices feature an integrated circuit sensor element and laser trimmed thick film ceramic housed in a compact solvent resistant case. The package is a double wide (i.e., 0.600 inch lead spacing) dual-inline-package. This is the same familiar package used by IC manufacturers except that is has a pressure port(s). The PC board area used by each DIP is approximately 0.26 square inches. This extremely small size enables the use of multiple sensors in limited available space. The DIP provides excellent corrosion resistance and isolation to external package stress.

The DIP mounts on a PC board like a standard IC with through-hole pins. The pins anchor the pressure sensor to the PC board and provide a more secure and stable unit than other types of packages.

 

TECHNICAL SPECIFICATIONS

 

Pressure ranges Differential / Gage / Vacuum 0...5 to 0...10 inch H2O
(0...12.5 to 0...25 mbar)
Output signal (typical)
at Vs = 12 V
0...20 mV
Non-linearity and hysteresis
(typical, combined)
±0.2 %FSS
Pressure connection tube fitting (Ø 2 mm)
Size without nipples and pins (approx.) 12 x 14 x 8 mm