Lecture 6

Question 1

Maximum level of signal that can be produced as an output of an amplifier. Must be less than the supply voltage.

Answer 1

Range

Question 2

Gain(A) =

Answer 2

Vout/Vin

Question 3

Gc =

Answer 3

common mode gain

Question 4

Common mode gain is gain due to:

Answer 4

identical imputs

Question 5

Gd=

Answer 5

differential gain

Question 6

Differential gain is gain due to:

Answer 6

different inputs

Question 7

CMRR is

Answer 7

Common mode rejection ratio

Question 8

CMRR =

Answer 8

Gd/Gc

Question 9

CMRR is typically:

Answer 9

10,000 biopotential amplifiers, 100 for low cost

Question 10

Gc = (Formula)

Answer 10

Kr*(R4/R3)

Question 11

Kr =

Answer 11

total fractional mismatch between R3/R4 and R3’/R4’

Question 12

Gd= (Formula)

Answer 12

V0/Vi = R4/R3

Question 13

_______ differentiates what part of frequency content that is to be removed and what part remains

Answer 13

corner frequency(Fc)

Question 14

1/2 Power point

Answer 14

V0/Vi = 0.707

Question 15

In low pass filters the capacitor is:

Answer 15

parallel with the Rf

Question 16

Low pass filter equation:

Answer 16

fc=1/2pitau f where tau f =RfCf

Question 17

In high pass filters the capacitor is:

Answer 17

in series with Ri

Question 18

High pass filter equation:

Answer 18

fc= 1/2pi*tau i where tau i =RiCi

Question 19

Band pass equation:

Answer 19

fc1= low pass equation fc2 = high pass equation

Question 20

Active filters require:

Answer 20

DC power supply

Question 21

Two signal conditioners:

Answer 21

Integrator and Differentiator

Question 22

Blood flow transducer is an example of an:

Answer 22

Differentiator