ECET 220 Week 6 ilab Devry

Course Number: ECET220

Professor:

Laboratory Number: 6

Laboratory Title: Operational Amplifier Circuits and Applications

Submittal Date: 2/15/2015

Objectives:

1. Given the schematic of an inverting summing amplifier circuit, examine and verify its operation characteristics

2. Given the schematic of a non-inverting summing amplifier circuit, examine and verify its operation characteristics

3. Given the schematic of an instrumentation amplifier circuit, examine and verify its operation characteristics

Part A. Construct the Inverting Summing Amplifier

Part B. Construct the Noninverting Summing Amplifier

Step 9. 

• The Theoretical value closely predicts the actual circuit output. (True /  False) TRUE

• Which input has the highest voltage gain? V_B

a)   V_A

b)   V_B

c)   All have the same voltage gain

• Which input has the lowest voltage gain?  V_A

  a)   V_A

  b)   V_B

  c)   All have the same voltage gain

Step 10. 

• The Theoretical value closely predicts the actual circuit output. (True /  False) TRUE

Questions

• An amplifier noninverting input is known for HIGH INPUT IMPEDANCE.

a)   high input impedance

b)   high negative gain

c)   high input bias current

d)   high offset voltage           

• An instrumentation amplifier is known for A, B AND C.

a)   high CMRR

b)   high input resistance

c)   difference of the inputs

d)   answers A, B and C

• If R₁ = R₂ = R₃ = R₄ = R₅ = R₆ and R₇ = 2 x R₅. What is the equation for V_OUT?