The CPC and CPX Series sensors integrate silicon micromachined sensing
technology, temperature compensation, and calibration in a complete family
of low cost packages. This series offers the most cost-effective solution
for design requirements. These piezoresistive pressure sensors use
micromachined silicon chips mounted on a ceramic and protected with a
plastic cap. Several tube arrangements with nylon housings are available
for various pressure applications. On devices of 5 psi and above, the
topside of the chip is protected against humidity by a Silgel coating.
While the sensors are designed for use with noncorrosive, nonionic pressure
media, they accommodate many gases that are used in medical applications.
The CPC Series is designed for the lowest cost and smallest profile. The
standard packages have only a plastic cap for OEM applications. The
CPC...F accommodates pressure measurements in tube applications.
Low Cost, Small Size
Zero and Span Calibrated
Differential, Gage and Absolute Pressure
Constant Voltage Excitation
High Impedance - Low Current
Applications Requiring Small Size
Applications Requiring Vacuum Reference
2 psi to 15 psi
45 psi max.
3 Vdc min., 12 Vdc typ., 16 Vdc max.
6 mV/psi typ.
Full Scale Span
90 mV typ.
0 mV typ.
Null Shift over Temperature
± 1.0 mV typ.
Span Shift Over Temperature
± 2.0% span
Linearity and Hysteresis Error
± 0.25 % typ. ± 1 % max. Span
5.0 kOhm min.
3.0 kOhm typ.
-25 °C to 85 °C [-13 °F to 185 °F]
Compensated Temperature Range
0 °C to 70 °C [32 °F to 158 °F]
-40 °C to 125 °C [-40 °F to 257 °F]
Port 1: Dry gases only. Media must be compatible with epoxy-based adhesive. Port 2: Wetted materials. Media must be compatible with nylon housing, epoxy adhesive and silicon.