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Freescale Semiconductor, Inc.
Order this document
by MPX2100/D
SEMICONDUCTOR TECHNICAL DATA
ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005
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0 to 100 kPa (0 to 14.5 psi)
40 mV FULL SCALE SPAN
(TYPICAL)
The MPX2100 series device is a silicon piezoresistive pressure sensor 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.
UNIBODY PACKAGE
Features
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Temperature Compensated Over 0°C to +85°C
Easy–to–Use Chip Carrier Package Options
Available in Absolute, Differential and Gauge Configurations
Ratiometric to Supply Voltage
±0.25% Linearity (MPX2100D)
MPX2100A/D
CASE 344
Application Examples
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Pump/Motor Controllers
Robotics
Level Indicators
Medical Diagnostics
Pressure Switching
Barometers
Altimeters
Figure 1 illustrates a block diagram of the internal circuitry on the stand–alone
pressure sensor chip.
MPX2100AP/GP
CASE 344B
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T HIN FI L M
T EM PERATU R E
CO M PEN SATI O N
AN D
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EL E ME NT
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CI RCU IT RY
MPX2100DP
CASE 344C
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Figure 1. Temperature Compensated Pressure Sensor Schematic
VOLTAGE OUTPUT versus APPLIED DIFFERENTIAL PRESSURE
The differential voltage output of the sensor is directly proportional to the differential
pressure applied.
The absolute sensor has a built–in reference vacuum. The output voltage will decrease
as vacuum, relative to ambient, is drawn on the pressure (P1) side.
The output voltage of the differential or gauge sensor increases with increasing
pressure applied to the pressure (P1) side relative to the vacuum (P2) side. Similarly,
output voltage increases as increasing vacuum is applied to the vacuum (P2) side
relative to the pressure (P1) side.
MPX2100ASX/GSX
CASE 344F
PIN NUMBER
1
2
Gnd
+V
3
4
V
S
–V
out
out
NOTE: Pin 1 is noted by the notch in
the lead.
REV 9
Motorola Sensor Device Data
For More Information On This Product,
Motorola, Inc. 2002
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