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3–79
Motorola Sensor Device Data
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Motorola’s MPX4115A/MPXA4115A series sensor integrates on–chip, bipolar op amp
circuitry and thin film resistor networks to provide a high output signal and temperature
compensation. The small form factor and high reliability of on–chip integration make the
Motorola pressure sensor a logical and economical choice for the system designer.
The MPX4115A/MPXA4115A series piezoresistive transducer is a state–of–the–art,
monolithic, signal conditioned, silicon pressure sensor. This sensor 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 integrated on a pressure
sensor chip.
Features
1.5% Maximum Error over 0
°
to 85
°
C
Ideally suited for Microprocessor or Microcontroller–
Based Systems
Temperature Compensated from –40
°
to +125
°
C
Durable Epoxy Unibody Element or Thermoplastic
(PPS) Surface Mount Package
Application Examples
Aviation Altimeters
Industrial Controls
Engine Control
Weather Stations and Weather Reporting Devices
Figure 1. Fully Integrated Pressure Sensor
Schematic
VS
SENSING
ELEMENT
Vout
GND
THIN FILM
TEMPERATURE
COMPENSATION
AND
GAIN STAGE #1
GAIN STAGE #2
AND
GROUND
REFERENCE
SHIFT CIRCUITRY
PINS 1, 5, 6, 7 AND 8 ARE NO CONNECTS
FOR SMALL OUTLINE PACKAGE DEVICE
PINS 4, 5 AND 6 ARE NO CONNECTS FOR
UNIBODY DEVICE
SEMICONDUCTOR TECHNICAL DATA
INTEGRATED
PRESSURE SENSOR
15 to 115 kPa (2.2 to 16.7 psi)
0.2 to 4.8 Volts 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.
MPX4115A
CASE 867
MPX4115AP
CASE 867B
1
2
3
Vout
Gnd
VS
4
5
6
N/C
N/C
N/C
UNIBODY PACKAGE
PIN NUMBER
NOTE: Pins 1, 5, 6, 7, and 8 are
internal device connections. Do not
connect to external circuitry or
ground. Pin 1 is noted by the notch in
the lead.
1
2
3
N/C
VS
Gnd
5
6
7
N/C
N/C
N/C
MPXA4115A6U
CASE 482
MPXA4115AC6U
CASE 482A
4
Vout
8
N/C
SMALL OUTLINE PACKAGE
MPX4115AS
CASE 867E
REV 4
F
Freescale Semiconductor, Inc.
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