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Motorola Sensor Device Data
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Motorola has developed a low cost, high volume, miniature pressure sensor package
which is ideal as a sub–module component or a disposable unit. The unique concept of
the Chip Pak allows great flexibility in system design while allowing an economic solution
for the designer. This new chip carrier package uses Motorola’s unique sensor die with
its piezoresistive technology, along with the added feature of on–chip, thin–film
temperature compensation and calibration.
NOTE:
Motorola is also offering the Chip Pak package in application–specific
configurations, which will have an “SPX” prefix, followed by a four–digit number, unique
to the specific customer.
Features
Low Cost
Integrated Temperature Compensation and Calibration
Ratiometric to Supply Voltage
Polysulfone Case Material (Medical, Class V Approved)
Provided in Easy–to–Use Tape and Reel
Application Examples
Medical Diagnostics
Infusion Pumps
Blood Pressure Monitors
Pressure Catheter Applications
Patient Monitoring
NOTE:
The die and wire bonds are exposed on the front side of the Chip Pak
(pressure is applied to the backside of the device). Front side die and wire protection
must be provided in the customer’s housing. Use caution when handling the devices
during all processes.
Motorola’s MPX2300DT1/MPX2301DT1 Pressure Sen-
sors
have been designed for medical usage by combining
the performance of Motorola’s shear stress pressure sensor
design and the use of biomedically approved materials.
Materials with a proven history in medical situations have
been chosen to provide a sensor that can be used with
confidence in applications, such as invasive blood pressure
monitoring. It can be sterilized using ethylene oxide. The
portions of the pressure sensor that are required to be
biomedically approved are the rigid housing and the gel
coating.
The rigid housing is molded from a white, medical grade
polysulfone that has passed extensive biological testing
including: tissue culture test, rabbit implant, hemolysis,
intracutaneous test in rabbits, and system toxicity, USP.
A silicone dielectric gel covers the silicon piezoresistive
sensing element. The gel is a nontoxic, nonallergenic elasto-
mer system which meets all USP XX Biological Testing Class
V requirements. The properties of the gel allow it to transmit
pressure uniformly to the diaphragm surface, while isolating
the internal electrical connections from the corrosive effects
of fluids, such as saline solution. The gel provides electrical
isolation sufficient to withstand defibrillation testing, as speci-
fied in the proposed Association for the Advancement of
Medical Instrumentation (AAMI) Standard for blood pressure
transducers. A biomedically approved opaque filler in the gel
prevents bright operating room lights from affecting the per-
formance of the sensor. The
MPX2301DT1
is a reduced gel
option.
Preferred
devices are Motorola recommended choices for future use and best overall value.
SEMICONDUCTOR TECHNICAL DATA
PRESSURE SENSORS
0 to 300 mmHg (0 to 40 kPa)
PIN NUMBER
MPX2300/1DT1
CASE 423A
1
2
VS
S+
3
4
S–
Gnd
Motorola Preferred Device
CHIP PAK PACKAGE
REV 5
F
Freescale Semiconductor, Inc.
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