Download ADXRS150EB ±150°/s Single Chip Rate Gyro Evaluation Board

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Transcript
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