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SIM985
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Operation and Service Manual
Analog Multiplier
SIM985
Stanford Research Systems
Revision 0.75 •March 31, 2023
ii
Certication
Stanford Research Systems certies that this product met its published specications at the time of
shipment.
Warranty
This Stanford Research Systems product is warranted against defects in materials and workmanship
for a period of one (1) year from the date of shipment.
Service
For warranty service or repair, this product must be returned to a Stanford Research Systems autho‑
rized service facility. Contact Stanford Research Systems or an authorized representative before re‑
turning this product for repair.
Information in this document is subject to change without notice.
Copyright © Stanford Research Systems, Inc., 2023. All rights reserved.
Stanford Research Systems, Inc.
1290–D Reamwood Avenue
Sunnyvale, CA 94089 USA
Phone: (408) 744‑9040 •Fax: (408) 744‑9049
www.thinkSRS.com •e‑mail: info@thinkSRS.com
Printed in the U.S.A. Document Number 9‑01768‑903
SIM985 Analog Multiplier
iii
Contents
General Information 1
Safety and Preparation for Use . . . . . . . . . . . . . . . . . . . 2
Service . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 2
Specications . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3
1 Operation 5
1.1 Introduction . . . . . . . . . . . . . . . . . . . . . . . . . . 6
1.1.1 Inputs . . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1.2 Outputs . . . . . . . . . . . . . . . . . . . . . . . . . 7
1.1.3 Bandwidth . . . . . . . . . . . . . . . . . . . . . . . 7
1.2 Distortion . . . . . . . . . . . . . . . . . . . . . . . . . . . . 8
1.3 DC accuracy . . . . . . . . . . . . . . . . . . . . . . . . . . 9
1.4 SIM Interface . . . . . . . . . . . . . . . . . . . . . . . . . . 10
1.4.1 SIM interface connector . . . . . . . . . . . . . . . . 10
1.4.2 Direct interfacing . . . . . . . . . . . . . . . . . . . 11
2 Trimming 13
2.1 Overview . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2 Oset trims . . . . . . . . . . . . . . . . . . . . . . . . . . . 14
2.2.1 Equipment needed . . . . . . . . . . . . . . . . . . . 14
2.2.2 Testing the oset voltages . . . . . . . . . . . . . . . 15
2.2.3 Trimming the X and Y input osets . . . . . . . . . 15
2.2.4 Trimming the Output Oset . . . . . . . . . . . . . 18
2.3 Bandwidth adjustment . . . . . . . . . . . . . . . . . . . . 18
2.4 Gain trim . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20
2.4.1 Equipment needed . . . . . . . . . . . . . . . . . . . 20
2.4.2 Procedure . . . . . . . . . . . . . . . . . . . . . . . . 21
3 Circuit Description 23
3.1 Block Diagram . . . . . . . . . . . . . . . . . . . . . . . . . 24
3.2 Detailed description . . . . . . . . . . . . . . . . . . . . . . 24
3.2.1 Input stage . . . . . . . . . . . . . . . . . . . . . . . 24
3.2.2 Multiplier . . . . . . . . . . . . . . . . . . . . . . . . 25
3.2.3 Output stage . . . . . . . . . . . . . . . . . . . . . . 25
3.2.4 Overload detection . . . . . . . . . . . . . . . . . . 25
3.2.5 Power . . . . . . . . . . . . . . . . . . . . . . . . . . 25
3.3 Schematics . . . . . . . . . . . . . . . . . . . . . . . . . . . 26
SIM985 Analog Multiplier
Produktspecifikationer
| Varumärke: | SRS |
| Kategori: | Inte kategoriserad |
| Modell: | SIM985 |
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