Analog Devices ADXRS 150EB Service Manual
ⴞ150ⴗ/s Single Chip Rate Gyro
Evaluation Board
ADXRS150EB
GENERAL DESCRIPTION
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.
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.
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.
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.
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
(C
= 22 nF). The user may add an external capacitor to
OUT
further reduce the bandwidth and improve the noise floor.
ST2
CP5
CP1
CP2
CP4
CP3
PDD
PGND
PIN 1
10
14
19
20
18
17
13
12
C6
C2
C4
7D
4F 5F 1C
5A
4A
ADXRS150ABG
7B
7C
6G 2G 1D
7E
C7
C3
1B
3F
1E
3A
C5
Figure 1. ADXRS150EB Schematic
PIN 20
C2 C4
C1 C3
0.1"
0.9"
C1
C6 C7
C5
11
3
2
9
7
1
4
8
ST1
SUMJ
RATEOUT
TEMP
2.5V
AV CC
CMID
AGND
0.3"
C03542–0–1/03(0)
SPECIAL NOTES ON HANDLING
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.
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.
Figure 2. ADXRS150EB Parts Layout
Table I. ADXRS150EB Parts List
Component Value (nF)
C1 100
C2 22
C3 22
C4 22
C5 100
C6 47
C7 100
PRINTED IN U.S.A.
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.
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