Op-amp LM741

Discussion in 'General Electronics Chat' started by syee10, Feb 25, 2011.

  1. syee10

    Thread Starter Member

    Mar 26, 2010
    Hi all,

    I have an opamp LM741 which require a Vcc and Vss to operate. I plan to give it +15V Vcc and -15V Vss. The problem is when i only connect +15V to the Vcc pin (pin7) on the opamp, the Vss pin (pin4) shows +13V plus plus when i measure it with voltmeter. I wonder why this happen? Is this normal? The Vss pin should shows 0V because i not yet connect a -15V to pin4,right?
  2. Ron H

    AAC Fanatic!

    Apr 14, 2005
    Think of a simpler example. Suppose I gave you a resistor and told you to connect +15V to one end and -15V to the other. If you only connected +15V to one end, would you expect to see 0V on the other end?
    ICs generally will have some connectivity between any two terminals.