IC topic 1: Op amp/555

Question 1

IC definition

Answer 1

Compact devices that combine many electronic components, such as transistors and resistors, onto a single chip

Question 2

Pinout of 741

Answer 2

1. Offset null
2. inverting
3. non-inverting
4. -V
5. offset null
6. output
7. +V
8. not connected

Question 3

Operating voltages of 741

Answer 3

(+/-) 5V-15V

Question 4

5 Char of 741

Answer 4

1. Very high open-loop gain
2. Extremely high input resistance (Input current = Out
3. Extremely low output resistance
4. High Bandwidth (0-10MHz)
5. Common mode rejection ratio (Rejects when inverting and non inverting terminals are the same)

Question 5

Ideal Op-Amp- 3 Rules

Answer 5

1. Input terminals draw no current
2. Input terminals always have the same voltage
3. Open loop gain is infinite