op amp

1. Welcome

2. Seminar on OP-AMP as Summing Amplifier & Subtractor Presented by: Satwant Singh & Pardeep Kumar

3. What is OP-AMP ? OP-AMP is a circuit which can perform logical mathematical operations. inverting input non-inverting input V  output V + Symbol of OP-AMP  +

5. Block Diagram of OP-AMP Input Stage Inter- mediate stage Level Shifting stage Output stage Output Input Inverting Non Inverting Emitter follower With constant Current source Complementary Push Pull amplifier Dual input Balanced Output Diff.Amp Dual input Unbalanced Output Diff.Amp

7. A summing amplifier sums several (weighted) voltages: Output is Inverted Summing Amplifier

8. When and R f independent Summing Amplifier

9. When Summing Amplifier

10. Experimental Part