Part 3) Basic Op Amp Amplifiers
3a) Noninverting Amplifier
Gain = 1 + R2/R1
2 = 1 + R2/1,000
1 = R2/1,000
R2 = 1,000
3a) Noninverting Amplifier
Gain = 1 + R2/R1
2 = 1 + R2/1,000
1 = R2/1,000
R2 = 1,000
Gain = 1 + R2/R1
11 = 1 + R2/1,000
10 = R2/1,000
R2 = 10,000
11 = 1 + R2/1,000
10 = R2/1,000
R2 = 10,000
3b) Inverting Amplifier
Gain = -Rf/Rin
2 = Rf/1,000
Rf = 2,000
(used 2.2 kΩ resistor)
Gain = -Rf/Rin
10 = Rf/1,000
Rf = 10,000
10 = Rf/1,000
Rf = 10,000