Motorola MPX2300D Datasheet
1
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
patented, piezoresistive implant technology, along with the added feature of on–chip,
thin–film temperature compensation and calibration.
Features:
• Low Cost
• Patented piezoresistive strain gauge implant, temperature compensation
and calibration all integrated on a single, monolithic sensor die.
• Pressure Range Available: 0–300 mmHg
• Polysulfone (Mindell S–1000) Case Material (Medical, Class VI Approved)
Motorola is offering the Chip Pak option package. Application–specific parts will have an “SPX” prefix, followed by a
four digit number, unique to the specific customer. Devices
will be shipped in a tape and reel packaging.
NOTE: The die and wire bonds are exposed on the front
side of the Chip Pak (pressure is applied to the backside of
the d evice). Front s ide die a nd wire p rotection must be
provided i n the customer’s h ousing. Use caution w hen
handling the devices during all processes.
Pin Number, Style 1
1 2 3 4
V
S
S+ S– Ground
MAXIMUM RATINGS
Rating Symbol Value Unit
Overpressure (Backside) P
max
125 PSI
Burst Pressure P
burst
1000 kPa
Supply Voltage V
Smax
10 Vdc
Storage Temperature T
stg
85 °C
Operating Temperature T
A
+15 to +40 °C
Motorola’s MPX2300D Pressure Sensors. Motorola’s
MPX2300D pressure sensor has 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 t esting
including: tissue culture test, rabbit implant, hemolysis,
intracutaneous test in rabbits, and system toxicity, USP.
A silicone dielectric gel that has been used extensively in
implants covers the silicon piezoresistive sensing element.
The gel is a nontoxic, nonallergenic polymer system which
passes pyrogen testing, as well as meeting all USP XX Biological Testing Class VI 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 specified 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 performance of the sensor.
Order this document
by MPX2300D/D
SEMICONDUCTOR TECHNICAL DATA
Motorola, Inc. 1995
PRESSURE SENSORS
CHIP PAK ELEMENT
CASE 423–03
Style 1
REV 1
MPX2300D
2
Motorola Sensor Device Data
OPERATING CHARACTERISTICS
(VS = 6 Vdc, TA = 25°C unless otherwise noted)
Characteristics
Symbol Min Typ Max Unit
Pressure Range P
OP
0 — 300 mmHg
Supply Voltage
(8)
V
S
— 6.0 10 Vdc
Supply Current I
o
— 1.0 — mAdc
Zero Pressure Offset V
off
–0.75 — 0.75 mV
Sensitivity — 4.95 5.0 5.05 µV/V/mmHg
Full Scale Span
(1)
V
FSS
2.976 3.006 3.036 mV
Linearity + Hysteresis — – 2.0 — 2.0
Temperature Effect on Sensitivity TCS –0.1 — +0.1 %/°C
Temperature Effect on Full Scale Span TCV
FSS
–0.1 — +0.1 %/°C
Temperature Effect on Offset
(4)
TCV
off
–9.0 — +9.0 µV/°C
Input Impedance Z
in
1800 — 4500 Ω
Output Impedance Z
out
270 — 330 Ω
R
CAL
(150 kΩ)
(9)
R
CAL
97 100 103 mmHg
Response Time
(5)
(10% to 90%)
t
R
— 1.0 — ms
Temperature Error Band — 0 — 85 °C
Stability
(6)
— — ±0.5 — %V
FSS
MECHANICAL CHARACTERISTICS
Characteristics Symbol Min Typ Max Unit
Weight (Case 423) — — 170 — mg
Warm–Up — — 15 — Sec
NOTES:
1. Measured at 6.0 Vdc excitation for 100 mmHg pressure differential. V
FSS
and FSS are like terms representing the algebraic difference be-
tween full scale output and zero pressure offset.
2. Maximum deviation from end–point straight line fit at 0 and 300 mmHg.
3. Slope of end–point straight line fit to full scale span at 0°C and +85°C relative to +25°C.
4. Slope of end–point straight line fit to zero pressure offset at 0°C and +85°C relative to +25°C.
5. For a 0 to 300 mmHg pressure step change.
6. Stability is defined as the maximum difference in output at any pressure within POP and temperature within +10°C to +85°C after:
a. 1000 temperature cycles, –40°C to +125°C.
b. 1.5 million pressure cycles, 0 to 300 mmHg.
7. Operating characteristics based on positive pressure differential relative to the vacuum side (gauge/differential).
8. Recommended voltage supply: 6 V ± 0.2 V , regulated. Sensor output is ratiometric to the voltage supply . Supply voltages above +10 V may
induce additional error due to device self–heating.
9. Offset measurement with respect to the measured sensitivity when a 150k ohm resistor is connected to VS and S+ output.
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