Analog MEMS accelerometer - wide bandwidth

Thank you for your post.  Right now, our wide-bandwidth/range accelerometers, which provide an analog signal interface, are all single-ended.  The ADIS16227 provides a triaxial function, which has similar capability to the ADXL001, but does not offer an analog interface, nor does it provide real-time data streaming. It takes discrete records of data, performs FFT on that data, then makes the resulting FFT records available for review. Could that be of use?

BTW, if you end up using a single-axis solution, you might want to check out the ADXL1001 and ADXL1002, as they offer much better noise performance than the ADXL001. I hope that this helps.  

Thank you so much. I just have a question regarding the x-axis direction of ADXL001? 

Normally, I would ask you to post a new question for this, but this thread is still pretty small, so I will answer this second question here.  The ADXL001's axial definition is in the Applications section of the datasheet, on page 13

http://www.analog.com/media/en/technical-documentation/data-sheets/ADXL001.pdf#Page=13

I hope that helps!

Thank you so much!