Model 1220 Low Pressure
PC Board Mountable Pressure Sensor
0-10" H
2
O to 0-1 PSI
0-50 mV Output
Low Cost
Temperature Compensated
Medical Instruments
Air Flow Measurement
HVAC
Process Control
Factory Automation
Leak Detection
DESCRIPTION
The Model 1220 is a temperature compensated, piezoresistive
silicon pressure sensor packaged in a dual-in-line configuration
and intended for cost sensitive applications where excellent
performance and long-term stability are required. The 1220 is a
fixed voltage referenced, current set version, designed for 1%
interchangeability to provide a 50 mV span at 1 PSI.
Integral temperature compensation is provided over a range
of 0-50擄C using laser-trimmed resistors. An additional laser-
trimmed resistor is included to adjust the gain of an external
differential amplifier. This provides sensitivity interchangeability
of 鹵1%.
The sensing element used in the low pressure Model 1220
includes a double bossed design that produces a sensor output
of 100 mV (typical) at 1 PSI.
FEATURES
Dual-in-line Package
鹵0.1%
Non-linearity
1.0% Interchangeable Span
(provided by current set resistor)
Temperature Compensated
Solid State Reliability
Low Power
The 1220 is also available in ranges up to 0-100 PSI. For a
compensated sensor using a gain set resistor as opposed to a
current set resistor, please refer to the Model 1210.
DIMENSIONS
STANDARD RANGES
Range
0 to1
0 to10
psi
in H
2
O
鈼?/div>
鈼?/div>
鈼?/div>
鈼?/div>
1-12
HITs 鈥?Low Pressure
1
2
