1

Motorola Sensor Device Data

Integrated Silicon Pressure Sensor

Manifold Absolute Pressure Sensor

On-Chip Signal Conditioned,

Temperature Compensated

and Calibrated

The Motorola MPX4100 series Manifold Absolute Pressure (MAP) sensor for engine

control is designed to sense absolute air pressure within the intake manifold. This

measurement can be used to compute the amount of fuel required for each cylinder. The

small form factor and high reliability of on–chip integration makes the Motorola MAP

sensor a logical and economical choice for automotive system designers.

Features

• 1.8% Maximum Error Over 0° to 85°C

• Specifically Designed for Intake Manifold Absolute Pressure Sensing in Engine

Control Systems

• Ideally Suited for Microprocessor Interfacing

• Patented Silicon Shear Stress Strain Gauge

• Temperature Compensated Over –40°C to +125°C

• Durable Epoxy Unibody Element

• Ideal for Non–Automotive Applications

Application Examples

• Manifold Sensing for Automotive Systems

Figure 1. Fully Integrated Pressure Sensor Schematic

VS

3

X–ducer

SENSING

ELEMENT

1

Vout

2

GND

THIN FILM

TEMPERATURE

COMPENSATION

AND

GAIN STAGE #1

GAIN STAGE #2

AND

GROUND

REFERENCE

SHIFT CIRCUITRY

PINS 4, 5 AND 6 ARE NO CONNECTS

The MPX4100 series piezoresistive transducer is a state–

of–the–art, monolithic, signal conditioned, silicon pressure

sensor. This sensor, with its patented transducer, combines

advanced micromachining techniques, thin film metallization,

and bipolar semiconductor processing to provide an

accurate, high level analog output signal that is proportional

to applied pressure.

Figure 1 shows a block diagram of the internal circuitry in-

tegrated on a pressure sensor chip.

Senseon and X–ducer are trademarks of Motorola, Inc.

Order this document

by MPX4100/D

MOTOROLA

SEMICONDUCTOR TECHNICAL DATA

MPX4100

SERIES

INTEGRATED

PRESSURE SENSOR

20 to 105 kPa (2.9 to 15.2 psi)

0.3 to 4.9 V Output

PIN NUMBER

NOTE: Pins 4, 5, and 6 are internal

device connections. Do not connect

to external circuitry or ground. Pin 1

is noted by the notch in the Lead.

BASIC CHIP CARRIER

ELEMENT

CASE 867–08, STYLE 1

1

2

3

Vout

Gnd

VS

4

5

6

N/C

N/C

N/C

REV 3