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Triple Axis Accelerometer Breakout - MMA7361

Description: This is a breakout board for Freescale's MMA7361L three-axis analog accelerometer. The sensor requires a very low amount of power and has a g-select input which switches the accelerometer between ±1.5g and ±6g measurement ranges. Other features include a sleep mode, signal conditioning, a 1-pole low pass filter, temperature compensation, self test, and 0g-detect which detects linear freefall. Zero-g offset and sensitivity are factory set and require no external devices.

This breadboard friendly board breaks out every pin of the MMA7361L to a 9-pin, 0.1" pitch header. The sensor works on power between 2.2 and 3.6VDC (3.3V optimal), and typically consumes just 400µA of current. All three axes have their own analog output.

Not sure which accelerometer is right for you? Our Accelerometer and Gyro Buying Guide might help!

Features:

Two selectable measuring ranges (±1.5g, ±6g)
Breadboard friendly - 0.1" pitch header
Low current consumption: 400 µA
Sleep mode: 3 µA
Low voltage operation: 2.2 V - 3.6 V
High sensitivity (800 mV/g at 1.5g)
Fast turn on time (0.5 ms enable response time)
Self test for freefall detect diagnosis
0g-Detect for freefall protection
Signal conditioning with low pass filter
Robust design, high shocks survivability

Dimensions: 0.90 x 0.50"

Documents:

Pricing

images are CC BY-NC-SA 3.0

ASCII version

Comments 19 comments

ericjforman | last year 3

better version of this here – cheaper, also works with 5V – http://shop.moderndevice.com/products/mma7260qt-3-axis-accelerometer
keywon | about 2 years ago 1

I’ve been looking for replacement for MMA7260 — analog 3-axis with adjustable g settings. This looks pretty close, except that I can’t use 4g.
Is this the closest we’ll get to replace MMA7260 in a while? Or is there another Freescale sensor on the way?
- chansuke | about a year ago 1
  
  They state in the buying guide that the MMA7260 has reached end of life, so well have to make do with this one.
Rando | about a year ago 1

Link to schematic appears to be broken…
Rohit Nair | about a year ago 1

Could you also provide the eagle Library part for this product ?
bird | about a year ago 1

Anyone know where I can find validation measurement of this sensor? ( graph of digital readings vs. acceleration )
I thought the datasheet would contain info like this to show its accuracy/linearity, but it does not seem to be true.
Member #203520 | about a year ago 1

I just got a few of these, and connected as stated vdd=3.3 v, gnd=ground, and xyz are the outputs to a meter, common ground. I’m not getting anything but like .0002 on the meter, and I tried 2 of them and the same results, my power is from prt-00114 power supply, any advice?
thanks
- Pearce | last year 1
  
  What do you have the sleep pin doing? You’ll need it pulled high for normal operation.
  - Member #196947 | about 4 months ago 1
    
    I am still learning about pins. I am using this board without an arduino or other microcontroller and want to just read the voltages coming out of the x/y/z pins with a meter. How can I pull the sleep pin to high without a board? My current understanding is to use a resistor and a ground connection, but want to confirm.
    - BenjB | about 4 months ago 1
      
      High means that you’ll want a resistor and a power connection. I haven’t looked into the specifics of this board, but from the sounds of it, you’ll want sleep pin — 10k resistor — 3.3 volt power.
Member #212257 | last year 1

Does this board have a built in voltage regulator cause i’m afraid I might fry the board when I use HIGH to turn off the sleep
- Teslaling | about 11 months ago 2
  
  You have to drop the voltage to 3.3v. You won’t fry it (you will eventually) you will just put a lot of electrical stress on it.
  Sensor Interfacing
Member #212257 | last year 1

Does this board have a built in voltage regulator cause i’m afraid I might fry the board when I use HIGH to turn off the sleep
- Member #229494 | about 9 months ago 1
  
  No, it does not. I would recommend getting a voltage regulator like this one: http://www.sparkfun.com/products/526 . Its what I’m using with the ADXL335, another accelerometer.
Elisabeth | about 11 months ago 1

I can’t download Datasheet because of damage.
plz replace it.
- RobertC. | about 11 months ago 1
  
  We have verified it a few times, it works. Check it on your end. Maybe your PDF reader or anti-virus is corrupting the file.
Tr6coug | about 9 months ago 1

Why do you use 2.2nF caps instead of the 3.3nF recommended in the datasheet? I have found 3.3nF to provide much less noise in the output than 2.2nF.
JacopoMTK | about 3 months ago * 1

I know it could be a stupid question,but it’s my first time on buying such components. This product include both the accelerometer and the board or only the board? Also,the board is necessary or can i use the “Triple-Axis Accelerometer – MMA7361L” directly?

Thanks.
LineKernel | about 3 months ago 1

hi i have all the rest of my system that is under 5V is it possible to put a resistor or a diode between my 5V and my vcc-and high pins?