MPXM2102AS datasheet(153/670 Pages) MOTOROLA

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Motorola Sensor Device Data

www.motorola.com/semiconductors

General Product Information

Performance, competitive price and application versatility

are just a few of the Motorola pressure sensor advantages.

PRESSURE SENSOR

APPLICATIONS VERSATILITY

For Motorola’s pressure sensors, new applications

emerge every day as engineers and designers realize that

they can convert their expensive mechanical pressure

sensors to Motorola’s lower–cost, semiconductor–based

devices. Applications include automotive and aviation,

industrial, healthcare and medical products and systems.

PERFORMANCE

The performance of Motorola pressure sensors is based

on its patented strain gauge design. Unlike the more

conventional pressure sensors which utilize four closely

matched resistors in a distributed Wheatstone bridge config-

uration, the device uses only a single piezoresistive element

ion implanted on an etched silicon diaphragm to sense the

stress induced on the diaphragm by an external pressure.

The extremely linear output is an analog voltage that is

proportional to pressure input and ratiometric with supply

voltage. High sensitivity and excellent long-term repeatability

make these sensors suitable for the most demanding

applications.

ACCURACY

Computer controlled laser trimming of on-chip calibration

and compensation resistors provide the most accurate

pressure measurement over a wide temperature range.

Temperature effect on span is typically

±0.5% of full scale

over a temperature range from 0 to 85

°C, while the effect on

offset voltage over a similar temperature range is a maximum

of only

±1 mV.

UNLIMITED VERSATILITY

Choice of Specifications:

Motorola’s pressure sensors are available in pressure

ranges to fit a wide variety of automotive, healthcare,

consumer and industrial applications.

Choice of Measurement:

Devices are available for differential, absolute, or gauge

pressure measurements.

Choice of Chip Complexity:

Motorola’s pressure sensors are available as the basic

sensing element, with temperature compensation and cali-

bration, or with full signal conditioning circuitry included on

the chip. Uncompensated devices permit external compen-

sation to any degree desired.

Choice of Packaging:

Available as a basic element for custom mounting, or in

conjunction with Motorola’s designed ports, printed circuit

board mounting is easy. Our Small Outline and Super Small

Outline packaging options provide surface mount, low

profile, and top piston fit package selections. Alternate

packaging material, which has been designed to meet

biocompatibility requirements, is also available.

Curves of span and offset errors indicate the accuracy resulting from

on-chip compensation and laser trimming.

1.5

0.5

– 0.5

–1

– 1.5

–2

–50

TEMPERATURE (

°C)

– 25

100

125

150

ERROR BAND LIMIT

SPAN ERROR

OFFSET ERROR

ERROR BAND LIMIT

Figure 1. Typical Output versus Pressure

Differential

PRESSURE DIFFERENTIAL

90 100

2.0

4.0

6.0

8.0

–40

°C

+25

°C

+125

°C

VS = 3.0 Vdc

P1 > P2

PSI

kPa

Figure 2. Temperature Error Band Limit and

Typical Span and Offset Errors

Freescale Semiconductor, Inc.

For More Information On This Product,

Go to: www.freescale.com

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