The ADXRS150EB is a simple evaluation board that allows the user to quickly evaluate the performance of the ADXRS150ABG yaw rate gyro. No additional external components are required for operation. The ADXRS150EB has a 20-lead dual-in-line (0.3 inch width by 0.1 inch pin spacing) interface that allows the user to easily prototype products without having to deal with BGA soldering. The 0.4 square inch outline of the ADXRS150EB is still among the smallest gyros available today. ST2 10 11 ST1 CP5 14 C6 CP1 19 7D CP2 20 1B 2 RATEOUT 3F 9 TEMP 1E 7 2.5V ADXRS150ABG 7B C4 PDD 13 1 AVCC 3A 7C 7E 6G 2G C7 C1 1D 4 CMID C5 8 AGND PGND 12 Figure 1. ADXRS150EB Schematic PIN 20 Note that the analog supply voltage and charge pump supply voltage (AVCC and PDD) are not connected on the ADXRS150EB and that users must connect these as appropriate to their application. Note that the ADXRS150EB is not reverse polarity protected. Reversing the power supply or applying inappropriate voltages to any pin (outside the data sheet’s Absolute Maximum Ratings) may damage the ADXRS150EB. 1C 4A CP4 18 The analog and power grounds (AGND and PGND) have separate ground planes and are joined at one point. The user may cut this trace if separate ground schemes are desired. SPECIAL NOTES ON HANDLING 5F C2 CP3 17 The parts layout of the ADXRS150EB is shown in Figure 2, and the parts list for the ADXRS150EB is shown in Table I. As delivered, the ADXRS150EB is set for 40 Hz bandwidth (COUT = 22 nF). The user may add an external capacitor to further reduce the bandwidth and improve the noise floor. 4F 5A CIRCUIT DESCRIPTION The schematic of the ADXRS150EB is shown in Figure 1. It is identical to the suggested application shown in the ADXRS150ABG data sheet. 3 SUMJ C3 PIN 1 C2 C4 C6 C1 C3 C5 C7 0.3" 0.9" 0.1" Figure 2. ADXRS150EB Parts Layout Table I. ADXRS150EB Parts List Component Value (nF) C1 C2 C3 C4 C5 C6 C7 100 22 22 22 100 47 100 REV. 0 Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. No license is granted by implication or otherwise under any patent or patent rights of Analog Devices. Trademarks and registered trademarks are the property of their respective companies. One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A. Tel: 781/329-4700 www.analog.com Fax: 781/326-8703 © 2003 Analog Devices, Inc. All rights reserved. PRINTED IN U.S.A. GENERAL DESCRIPTION C03542–0–1/03(0) ⴞ150ⴗ/s Single Chip Rate Gyro Evaluation Board ADXRS150EB