DSDX Series
Digital pressure transducers
1/8
February 2009 / 545
www.sensortechnics.com
FEATURES
· 0...1 to 0...100 psi,
0...±1 to 0...±100 psi
· Absolute, gage or
differential pressure
· Digital readout via I2C-bus
· Precision ASIC conditioning
· Temperature compensated
· Non-ratiometric output
GENERAL DESCRIPTION
The DSDX series offers a digital
interface on a very cost-effective basis.
This family is fully calibrated and
temperature compen-sated using an
on-board ASIC. These sensors are
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 to 100 psi. The
absolute devices have an internal
vacuum reference and an output
signal proportional to absolute
pressure. Differential devices allow
application of pressure to either side
of the sensing diaphragm and can be
used
for
gage
or
differential
measurements.
All DSDX devices are accurate to with-
in ±2.0 %FSS for all gage and
absolute devices. The devices are
characterized for operation from a
single 5 V supply. The sensor is de-
signed and manufactured according
to standards laid down in ISO 9001.
ELECTRICAL CONNECTION
APPLICATIONS
· Medical instrumentation
· Barometry
· HVAC controls
· Pneumatic controls
Note:
A capacitor of 220 nF is required
between +Vs and GND.
Pin 2 is an internal device connection and
should be connected to ground with a
15 nF capacitor.
It is important to place the capacitors as
close to the pins as possible!
Pins 4, 6 and 8 are internal device
connections and should not be
connected for any reason!
+Vs
SCL
SDA
IC
GND
5
7
2
8 4
3
6
220 nF
15 nF
DSDX
N/C
N/C
1
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