Data Sheet

Pmod CMPS2™ Reference Manual
Copyright Digilent, Inc. All rights reserved.
Other product and company names mentioned may be trademarks of their respective owners.
Page 2 of 12
Overview
The Digilent Pmod CMPS2 is a 3 axis anisotropic magneto-resistive sensor. With Memsic's MMC34160PJ, the local
magnetic field strength in a ±16 Gauss range with a heading accuracy of 1° and up to 0.5 mG of resolution.
1 Specifications
The Pmod CMPS2.
Features include:
 Low noise 3-axis Digital Compass
 0.5 mG Field Resolution in ±16 Gauss fields
 I²C Slave, FAST (≤400 kHz) mode
 Optional pull-up resistors for SCL and SDA pins
 ±1° heading accuracy
 Small PCB size for flexible designs 0.8“ × 1.25” (2.0
cm × 3.2 cm)
 6-pin Pmod connector with I²C serial interface
 Pass-through Pmod host port for daisy chaining
 Follows Digilent Pmod Interface Specification 1.1.0
 Library and example code in the Pmod
CMPS2 Resource Center
Parameter
Min
Typical
Max
Units
Power Supply Voltage
1.62
1.8
3.6
V
Output Resolution
12
14
16
bits
Alignment Error
-3
±1
+3
Degrees
Parameter
Condition
Value
Units
Total RMS Noise
16 bits at 7.92 ms/S
1.5
mG
Total RMS Noise
16 bits at 4.08 ms/S
2.0
mG
Total RMS Noise
14 bits at 2.16 ms/S
4.0
mG
Total RMS Noise
12 bits at 1.20 ms/S
6.0
mG
Max Output Data Rate
16 bits at 7.92 ms/S
125
Hz
Max Output Data Rate
16 bits at 4.08/S
250
Hz
Max Output Data Rate
14 bits at 2.16 ms/S
450
Hz
Max Output Data Rate
12 bits at 1.20 ms/S
800
Hz
Parameter
Value
Units
Field Range for Each Axis
±16
G