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MPX2100

On-Chip temperature Compensated & Calibrated Silicon pressure Sensors

Freescale Semiconductor 

MOTOROLA

Freescale Semiconductor, Inc.

SEMICONDUCTOR TECHNICAL DATA

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by MPX2100/D

ARCHIVED BY FREESCALE SEMICONDUCTOR, INC. 2005

100 kPa

On-Chip Temperature

Compensated & Calibrated

Silicon Pressure Sensors

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.

Features

• 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)

Application Examples

• Pump/Motor Controllers

• Robotics

• Level Indicators

• Medical Diagnostics

• Pressure Switching

• Barometers

• Altimeters

MPX2100

SERIES

0 to 100 kPa (0 to 14.5 psi)

40 mV FULL SCALE SPAN

(TYPICAL)

UNIBODY PACKAGE

MPX2100A/D

CASE 344

Figure 1 illustrates a block diagram of the internal circuitry on the stand–alone

pressure sensor chip.

VS

3

MPX2100AP/GP

CASE 344B

SENSING

ELEMENT

THIN FILM

TEMPERATURE

COMPENSATION

AND

CALIBRATION

CIRCUITRY

2 Vout+

4 Vout-

1

GND

Figure 1. Temperature Compensated Pressure Sensor Schematic

MPX2100DP

CASE 344C

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.

REV 9

©

Motorola Sensor

Motorola, Inc. 2002

Device

Data

For More Information On This Product,

Go to: www.freescale.com

MPX2100ASX/GSX

CASE 344F

PIN NUMBER

1

Gnd

3

VS

2

+Vout

4

–Vout

NOTE: Pin 1 is noted by the notch in

the lead.

1

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