- on Education & Information
- Published in issue 7/2004 on page 0
Zero Gain Mod for Non- Inverting Opamp
Electronics textbooks will tell you that a non-inverting opamp normally cannot be regulated down to 0 dB gain. If zero output is needed then it is usual to employ an inverting amplifier and a buffer amp in front of it, the buffer acting as an impedance step-up device.