Download AN_118 Current sensing with wire loop

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GMW
CSA-1V Evaluation Kit with Loop Wire
AN_118KIT
Feb 2005
Applications:
Medium current sensing and where higher sensitivity is needed.
(0 to 8 amps RMS – 22Amp peak <1Sec)
Operation:
The output voltage can be measured between A-OUT1 and CO-OUT1 for a differential output or between
A-OUT1 and GND for single ended output. Current in the direction shown, will produce a negative going
output. Current in the opposite direction will produce a positive going output. AC current will produce an
AC analog output. Output sensitivity is approximately 110 mV/amp
Notes: See application note AN_102 for current sensing applications
Top View
Bottom View
Current Flow
0.5”
0.75
GND
+ 5V (VDD)
CO_OU
A_OUT
`
Spare CSA-1V-SO
Current Flow
Mating Connector
Jumper
GND
+5V (VDD)
Full scale output
2.5 V +/- 2.5Volts
6.2V
2
4
7
1
C1
U1
0.1uF
(CSA-1V)
5
6
8
6.2V
Single Ended
Output
A-OUT
CO_OUT
Differential
Output
Full scale output
0 V +/- 2.5Volts
GMW 955 Industrial Road, San Carlos, CA 94070. Tel: (650) 802-8292. Fax: (650) 802-8298. Email [email protected]
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