MMA2301EGR2 Freescale Semiconductor, MMA2301EGR2 Datasheet - Page 5

• Manufacturer Part Number: MMA2301EGR2
• Description: IC SENSOR ACCEL +/-200G 16-SOIC
• Manufacturer: Freescale Semiconductor
• Series: MMAr

Specifications of MMA2301EGR2

• Axis: X or Y
• Acceleration Range: ±225g
• Sensitivity: 10mV/g
• Voltage - Supply: 4.75 V ~ 5.25 V
• Output Type: Analog
• Bandwidth: 400Hz
• Mounting Type: Surface Mount
• Package / Case: 16-SOIC (0.300", 7.50mm Width)
• Sensing Axis: X
• Acceleration: 200 g
• Maximum Operating Temperature: + 125 C
• Minimum Operating Temperature: - 40 C
• Mounting Style: SMD/SMT
• No. Of Axes: 1
• Sensor Case Style: SOIC
• No. Of Pins: 16
• Supply Voltage Range: 4.75V To 5.25V
• Operating Temperature Range: -40°C To +125°C
• Acceleration Range ±: 200gf
• Rohs Compliant: Yes
• Package Type: SOIC
• Operating Supply Voltage (min): 4.75V
• Operating Supply Voltage (typ): 5V
• Operating Supply Voltage (max): 5.25V
• Operating Temperature (min): -40C
• Operating Temperature (max): 125C
• Operating Temperature Classification: Automotive
• Product Height (mm): 3.3mm
• Mounting: Surface Mount
• Pin Count: 16
• Lead Free Status / RoHS Status: Lead free by exemption / RoHS Compliant
• Interface: -
• Lead Free Status / Rohs Status: Lead free / RoHS Compliant

Sensors
Freescale Semiconductor
PINOUT DESCRIPTION
Table 3. Pin Descriptions
V
14 thru 16
DD
9 thru 13
Pin No.
1 thru 3
Figure 4. SOIC Accelerometer with Recommended
0.1 μF
C1
4
5
6
7
8
Logic
Input
STATUS
V
V
N/C
N/C
N/C
OUT
V
ST
DD
SS
Pin Name
Trim pins
STATUS
4
8
7
V
V
N/C
V
ST
OUT
—
DD
SS
Connection Diagram
ST
V
V
DD
SS
MMA2301KEG
1
2
3
4
5
6
7
8
Leave unconnected.
Logic input pin used to initiate self-
test.
Output voltage of the accelerometer.
Logic output pin to indicate fault.
The power supply ground.
The power supply input.
Used for factory trim. Leave
unconnected.
No internal connection. Leave
unconnected.
V
OUT
16
15
13
12
10
14
11
6
5
9
0.01 μF
Description
C2
1 kΩ
R1
N/C
N/C
N/C
N/C
N/C
N/C
N/C
N/C
Status
BASIC CONNECTIONS
Signal
Output
NOTES:
•
•
•
•
•
•
switching frequency should be selected such that they do not
interfere with the internal accelerometer sampling frequency.
This will prevent aliasing errors.
PCB Layout
A/D sampling rate and any external power supply
STATUS
Use a 0.1 μF capacitor on V
source.
Physical coupling distance of the accelerometer to the
microcontroller should be minimal.
Place a ground plane beneath the accelerometer to
reduce noise, the ground plane should be attached to all
of the open ended terminals shown in
Use an RC filter of 1 kΩ and 0.01 μF on the output of the
accelerometer to minimize clock noise (from the switched
capacitor filter circuit).
PCB layout of power and ground should not couple power
supply noise.
Accelerometer and microcontroller should not be a high
current path.
Figure 5. Recommend PCB Layout for Interfacing
V
V
OUT
V
ST
DD
SS
C
Accelerometer to Microcontroller
Power Supply
0.1 μF
1 kΩ
R
C
C
0.01 μF
0.1 μF
DD
P1
P0
A/D In
V
RH
to decouple the power
Figure 5
MMA2301KEG
V
V
DD
SS
C
0.1 μF
5