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Sensym - Low cost compensated pressure sensors

Numéro de référence SDX05G2
Description Low cost compensated pressure sensors
Fabricant Sensym 
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SDX05G2 fiche technique
SDX Series
Low cost compensated pressure sensors in DIP package
FEATURES
· 0...1 psi to 0...100 psi
· Low cost DIP package
· Temperature
compensation
· 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 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 accu-
rate and stable output over a 0 to 50°C
temperature range. This series is in-
tended 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
Scale:
1 cm
½ inch
package stresses. The DIP package
also provides convenient mounting
and pressure ports for ease of use
with standard plastic tubing for
pressure connection.
All SDX devices are calibrated for span
to within 3.5 % and provide an offset
(zero pressure output) of ±1 mV max.
These parts were designed for low
cost applications where the user can
typically provide fine-adjustment of
zero and span in external circuitry. For
higher accuracies, refer to the SDX-A
series datasheet.
EQUIVALENT CIRCUIT
ELECTRICAL CONNECTION
Vs
P2 1 out + out - 1 P1
out + 1
+Vs
GND GND
+Vs GND P1
+Vs
4 out - out + 4 out - P2 4
vent hole
+ - SDXxxxG2
SDXxxxA2
Top View
SDXxxxD4
Note:
The polarity identicated is for pressure applied to
SDXxxxG2:
P2 (backward gage)
SDXxxxA2:
P1 (forward gage)
SDXxxxD4:
P2 (backward gage)
March 2004 / 062
1/4
http://www.sensortechnics.com

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