0-1003800-5 Measurement Specialties Inc/Schaevitz, 0-1003800-5 Datasheet - Page 6

• Manufacturer Part Number: 0-1003800-5
• Description: SENSOR ACCELEROMETER 3-AXIS SMD
• Manufacturer: Measurement Specialties Inc/Schaevitz

Specifications of 0-1003800-5

• Rohs Status: RoHS non-compliant
• Axis: X, Y, Z
• Acceleration Range: ±250g
• Sensitivity: 1.8mV/g
• Output Type: Analog
• Interface: Parallel
• Mounting Type: Surface Mount
• Package / Case: Surface Mount
• Voltage - Supply: -
• Bandwidth: -
• Other names: ACH-04-08-05; MSP1004

Accelerometer ACH-04-08-05
114-27002
3.0 REQUIREMENTS
3.1 Detailed Description
Each of the three sensing elements is a small cantilever beam consisting of a metal substrate with a piezoelectric
polymer element affixed to one side. Each beam is supported at one end while the opposite end is allowed to flex in
response to acceleration. The beam flex strains the piezoelectric material which in turn generates a charge
proportional to the applied acceleration.
The beams are oriented to sense acceleration in the defined X, Y, and Z axes. Note that the X and Y axes are at a
o
45
angle relative to the accelerometer’s package.
3.2 Electrical Interface
The ACH-04-08-05 contains three JFET’s, one for each channel, which function as impedance converters easing
electrical interface requirements. The JFET’s are similar to the industry standard part number 2N4117. The JFET’s
MUST be biased for the accelerometer to function properly. There are many possible interface circuits. The JFET
biasing circuit, used in MSI’s final production test, is shown on page 4. Two other example circuits are shown below.
Rev A
Measurement Specialties Incorporated, Norristown, PA 19403 610-650-1500
6 of 10
Printed in U.S.A. For drawings, technical data or samples, contact call 610-650-1500.
Specifications subject to change. Consult MSI for latest specifications.