M OT O RO LA
SEMICONDUCTOR TECHNICAL DATA
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MP XM 2102
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The MPXM2102 device is a silicon piezoresistive pressure sensors providing a highly
accurate and linear voltage output — directly proportional to the applied pressure. The
sensor is a single, monolithic silicon diaphragm with the strain gauge and a thin–film
resistor network integrated on–chip. The chip is laser trimmed for precise span and offset
calibration and temperature compensation.
Motorola Preferred Device
0 to 100 kPa (0 to 14.5 psi)
40 mV FULL SCALE SPAN
(TYPICAL)
Features
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Temperature Compensated Over 0°C to +85°C
Unique Silicon Shear Stress Strain Gauge
Easy to Use Tape & Reel
Ratiometric to Supply Voltage
SCALE 2:1
Gauge Ported & Non Ported Options
Application Examples
CASE 1320A–02
MPAK, STYLE 1
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Pump/Motor Controllers
Robotics
Level Indicators
Medical Diagnostics
Pressure Switching
Barometers
SCALE 2:1
Altimeters
CASE 1320A–02
MPAK, STYLE 2
Figure 1 shows a block diagram of the internal circuitry on the stand–alone pressure
sensor chip.
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Figure 1. Temperature Compensated Pressure Sensor Schematic
VOLTAGE OUTPUT versus APPLIED DIFFERENTIAL PRESSURE
The differential voltage output of the X–ducer is directly proportional to the differential
pressure applied.
The output voltage of the differential or gauge sensor increases with increasing
pressure applied to the pressure side (P1) relative to the vacuum side (P2). Similarly,
output voltage increases as increasing vacuum is applied to the vacuum side (P2)
relative to the pressure side (P1).
Preferred devices are Motorola recommended choices for future use and best overall value.
X–ducer is a trademark of Motorola, Inc.
REV 0
Motorola, Inc. 2000