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SparkFun will be closing early at 3:30 Friday 5/27 and remain closed Monday for Memorial Day (5/30). Orders placed after 2pm MT on Friday (5/27) will process and ship out on Tuesday (5/31).

Member #473751

Member Since: September 29, 2013

Country: United States

  • I’m very interested in this circuit, don’t like supply voltage with two batteries (9 V) because I will use USB port in my app. Is it possible to use just +5 V and -5 V for supply, or op amps will not work correctly? Thanks!

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