Document
MOTOROLA
SEMICONDUCTOR TECHNICAL DATA
Order this document by MPXS4100A/D
IOT&nentCme-CagplhreiabirptraeatSdtuiergPdenraeClsosCmuoprneednSitseiaontnseeoddr,,
The Motorola MPXS4100A series Barometric Absolute Pressure (BAP) sensor for engine control is designed to sense absolute air pressure.
Motorola’s BAP 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 BAP sensor a logical and economical choice for the automotive system designer.
Features • 1.8% Maximum Error Over 0° to 85°C • Surface Mount Package • Available Tape and Reeled or in Sleeves • Ideally Suited for Direct Microprocessor Interfacing • Patented Silicon Shear Stress Strain Gauge • Temperature Compensated Over – 40 to +125°C • Ideal for Non–automotive applications • Also Available in Unibody Package (see MPX4100A/D data sheet)
Application • Barometric Absolute Pressure for Engine Control
VS
2
X–ducer SENSING ELEMENT
THIN FILM TEMPERATURE COMPENSATION
AND GAIN STAGE #1
GAIN STAGE #2 AND
GROUND REFERENCE SHIFT CIRCUITRY
4 Vout
MPSXESR4I1E0S0A
INTEGRATED PRESSURE SENSOR 20 to 105 kPa (2.9 to 15.2 psi) 0.3 to 4.9 V OUTPUT
BASIC CHIP CARRIER ELEMENT
CASE 471–01, STYLE 1
PIN NUMBER 1 N/C 5 N/C 2 VS 6 N/C 3 Gnd 7 N/C 4 Vout 8 N/C NOTE: Pins 1, 5, 6, 7 and 8 are internal device connections. Do not connect to external circuitry or ground.
3 PINS 1 AND 5 THROUGH 8 ARE NO CONNECTS
GND
Figure 1. Fully Integrated Pressure Sensor Schematic
MAXIMUM RATINGS(1)
Rating Overpressure(2) Burst Pressure(2)
Symbol Pmax Pburst
Value 400 1000
Unit kPa kPa
Storage Temperature
Tstg
– 40 to +125
°C
Operating Temperature
TA
– 40 to +125
°C
1. TC = 25°C unless otherwise noted. 2. Exposure beyond the specified limits may cause permanent damage or degradation to the device.
Senseon and X–ducer are trademarks of Motorola, Inc. REV 1 ©MMoottoororolal,aInSc.e1n9s97or Device Data
1
MPXS4100A SERIES
OPERATING CHARACTERISTICS (VS = 5.1 Vdc, TA = 25°C unless otherwise noted)
Characteristic
Symbol
Min
Pressure Range Supply Voltage(1)
POP VS
20 4.85
Supply Current Minimum Pressure Offset(2) Full Scale Output(3) Full Scale Span(4) Accuracy(5)
(0 to 85°C) (0 to 85°C) (0 to 85°C) (0 to 85°C)
Io Voff VFSO VFSS —
— 0.225 4.816
— —
Sensitivity Response Time(6)
∆V/∆P tR
— —
Output Source Current at Full Scale Output Warm–up Time(7)
Io+ — ——
Offset Stability(8)
——
Typ — 5.1 7.0 0.306 4.897 4.591 — 54 1.0 0.1 20 ±ā0.65
Max 105 5.35 10 0.388 4.978 — ±1.8 — — — — —
Unit kPa Vdc mAdc Vdc Vdc Vdc %VFSS mV/kPa ms mAdc ms %VFSS
MECHANICAL CHARACTERISTICS
Characteristic
Symbol
Min
Typ
Max Unit
Weight, Basic Element (Case 432)
— — 1.5 — Grams
NOTES:
1. Device is ratiometric within this specified excitation range.
2. Offset (Voff) is defined as the output voltage at the minimum rated pressure. 3. Full Scale Output (VFSO) is defined as the output voltage at the maximum or full rated pressure. 4. Full Scale Span (VFSS) is defined as the algebraic difference between the output voltage at full rated pressure and the output voltage at the
minimum rated pressure.
5. Accuracy is the deviation in actual output from nominal output over the entire pressure range and temperature range as a percent of span
at 25°C due to all sources of error including the following:
• Linearity:
Output deviation from a straight line relationship with pressure over the specified pressure range.
• Temperature Hysteresis: Output deviation at any temperature within the operating temperature range, after the temperature is
cycled to and from the minimum or maximum operating temperature points, with minimum specified
pressure applied.
• Pressure Hysteresis: Output deviation at any pressure within the specified range, when this pressure is cycled to and from
minimum or maximum rated pressure at 25°C.
• TcSpan:
Span deviation per °C over the temperature range of 0° to 85°C, as a percent of span at 25°C.
• TcOffset:
Output deviation per °C with minimum pressure applied, over the temperature range of 0° to 85°C.
6. Response Time is defined as the time for the incremental change in the output to go from 10% to 90% of its final value when subjected to
a specified step change in pressure.
7. Warm–up Time is defined as the time required for the product to meet the specified output voltage.
8. Offset Stability is the product’s output deviation when subjected to 1000 hours of Pulsed Pressure, Temperature Cycling with Bias Test.
9. Decoupling circuit shown in Figure 2 required to meet specification.
2 Motorola Sensor Device Data
MPXS4100A SENSOR OUTPUT (PIN 4) 50 pF
A/D 51 k
µ PROCESSOR
MPXS4100A SERIES
Figure 2. Recommended Decoupling Filter for Sensor to Microprocessor Interface
The MPXS4100A series piezoresistive transducer is a state–of–the–art, monolithic, signal conditioned, silicon press.