Wiring three-axis accelerometer

Question

I need to wire the following three-axis axis accelerometer:

http://docs-europe.electrocomponents.com/webdocs/127c/0900766b8127c68c.pdf

Here when I click on ADXL335, the below link comes with some more information: http://www.analog.com/en/mems-sensors/mems-inertial-sensors/adxl335/products/product.html

Here it says: Single-supply operation 1.8 V to 3.6 V

I have 3 problems here:

1) Is COM the common ground for Vs and X,Y,Z outputs?

2) What is ST pin for? I couldn't figure out what it is used for?

3) Should the power supply be constant? Can I use a battery? The reason I am asking these if I have 9V constant power supply and I use 3 resistors to make a voltage divider, would it be ok?

4) How can I extend that 6-pin, 0.1 inch spaced header? Is there generic plug name?

Answer 1

Is COM the common ground for Vs and X,Y,Z outputs?

Yes, the evaluation board schematic shows the output filter capacitors from X, Y, and Z to COM.

What is ST pin for? I couldn't figure out what it is used for?

Self test, check the datasheet, you probably don't need it.

Should the power supply be constant? Can I use a battery? The reason I am asking these if I have 9V constant power supply and I use 3 resistors to make a voltage divider, would it be ok?

No, use a proper regulator. See this question.

How can I extend that 6-pin, 0.1 inch spaced header? Is there generic plug name?

That is about as generic a termination as you can get. Find yourself something through hole with .1" pitch on your favorite distributor's website. Look at Molex and Amphenol for a locking header and connector.