SDX...IND4 Series
Compensated pressure sensors in DIP package
1/4
June 2008 / 551
www.sensortechnics.com
FEATURES
· 0...5 and 0...10 "H
2O
· 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
EQUIVALENT CIRCUIT
Scale:
1 cm
½ inch
ELECTRICAL CONNECTION
Top view
Note:
The polarity identicated is for pressure applied to P2 (backward gage).
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 compen-
sated sensors give an accurate and
stable output over a 0 to 50°C tem-
perature range. This series is inten-
ded for use with non-corrosive, non-
ionic working fluids such as air, dry
gases and the like.
The SDX...IND4 devices are speci-
fically designed to measure low
pressures. They feature a 0 to 5 or
0 to 10 "H
2O 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" 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.
+out
V
-out
P1
GND
out -
1
out +
4
+Vs
P2
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