MPXM2102AS datasheet(165/670 Pages) MOTOROLA

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Motorola Sensor Device Data

www.motorola.com/semiconductors

10 kPa Uncompensated

Silicon Pressure Sensors

The MPX12 series device is a silicon piezoresistive pressure sensor providing a very

accurate and linear voltage output — directly proportional to the applied pressure. This

standard, low cost, uncompensated sensor permits manufacturers to design and add

their own external temperature compensating and signal conditioning networks.

Compensation techniques are simplified because of the predictability of Motorola’s single

element strain gauge design.

Features

• Low Cost

• Patented Silicon Shear Stress Strain Gauge Design

• Ratiometric to Supply Voltage

• Easy to Use Chip Carrier Package Options

• Differential and Gauge Options

• Durable Epoxy Package

Application Examples

• Air Movement Control

• Environmental Control Systems

• Level Indicators

• Leak Detection

• Medical Instrumentation

• Industrial Controls

• Pneumatic Control Systems

• Robotics

Figure 1 shows a schematic of the internal circuitry on the stand–alone pressure

sensor chip.

Figure 1. Uncompensated Pressure Sensor Schematic

PIN 3

SENSING

ELEMENT

PIN 2

PIN 4

+ Vout

– Vout

+ VS

PIN 1

VOLTAGE OUTPUT versus APPLIED DIFFERENTIAL PRESSURE

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).

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

MPX12

SERIES

0 to 10 kPa (0 – 1.45 psi)

55 mV FULL SCALE SPAN

(TYPICAL)

PIN NUMBER

MPX12D

CASE 344

MPX12DP

CASE 344C

Gnd

+Vout

–Vout

NOTE: Pin 1 is noted by the notch in

the lead.

REV 3

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

MPXM2102AS Datasheet(PDF) 165 Page - Motorola, Inc

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