EVAL-ADXL1002Z

Evaluation Board User Guide UG-1121 One Technology Way • P.O. Box 9106 • Norwood, MA 02062-9106, U.S.A. • Tel: 781.329.4700 • Fax: 781.461.3113 • www.analog.com Evaluating the Low Noise, High Frequency MEMS ADXL1001/ADXL1002 Accelerometers FEATURES EVALUATION BOARD PHOTGRAPHS 2 sets of spaced vias for populating 6-pin headers Easily attaches to prototyping board or PCB Small size and board stiffness minimizes impact on the user system and acceleration measurements EQUIPMENT NEEDED External digitizer and host processor DOCUMENTS NEEDED ADXL1001/ADXL1002 data sheet Full details on the microelectromechanical systems (MEMS) ADXL1001/ADXL1002 accelerometers are provided in the ADXL1001/ADXL1002 data sheet, available from Analog Devices, Inc., which must be consulted in conjunction with this evaluation board user guide. PLEASE SEE THE LAST PAGE FOR AN IMPORTANT WARNING AND LEGAL TERMS AND CONDITIONS. Rev. 0 | Page 1 of 7 Figure 1. EVAL-ADXL1001Z 15710-010 The EVAL-ADXL1001Z and EVAL-ADXL1002Z are simple evaluation boards that allow users to quickly evaluate the performance of the ADXL1001 and ADXL1002 vibration sensors. The EVAL-ADXL1001Z and EVAL-ADXL1002Z are specifically designed to mount onto a mechanical shaker and are constructed of an extra thick printed circuit board (PCB), measuring 0.8 inches square. Screw holes are supplied for rigid mounting to the shaker block. This design allows users to evaluate the full performance range of the ADXL1001 or ADXL1002 vibration sensor without having to solder the device to a separate test board. A simple RC low-pass filter is provided at the output with a −3 dB bandwidth of about 20 kHz. Components can be replaced to allow users to implement their own application specific low-pass filter on the output of the device. 15710-009 GENERAL DESCRIPTION Figure 2. EVAL-ADXL1002Z UG-1121 Evaluation Board User Guide TABLE OF CONTENTS Features .............................................................................................. 1 Evaluation Board Hardware .............................................................3 Equipment Needed ........................................................................... 1 Circuit Description .......................................................................3 Documents Needed .......................................................................... 1 Special Notes on Handling ...........................................................3 General Description ......................................................................... 1 Evaluation Board Schematics and Artwork ...................................4 Evaluation Board Photgraphs ......................................................... 1 Ordering Information .......................................................................7 Revision History ............................................................................... 2 Bill of Materials ..............................................................................7 REVISION HISTORY 3/2017—Revision 0: Initial Version Rev. 0 | Page 2 of 7 Evaluation Board User Guide UG-1121 EVALUATION BOARD HARDWARE CIRCUIT DESCRIPTION The schematics for the EVAL-ADXL1001Z and EVALADXL1002Z are shown in Figure 3 and Figure 4. This circuit was designed to allow a user configurable low-pass filter on the device output. When no low-pass filter is needed, users must short the R1 solder pads together, and it is recommended that a bypass capacitor (22 nF) be placed on C2 for improved electromagnetic interference (EMI) rejection. The board layouts of the EVAL-ADXL1001Z and EVALADXL1002Z are shown in Figure 1 and Figure 2, and the bill of materials list for the EVAL-ADXL1001Z and EVAL-ADXL1002Z is shown in Table 1. As delivered, the bandwidth limit of the evaluation boards is set by the external RC filter at about 20 kHz. It is recommended that additional filtering, such as a