EE 4BD4 Lecture 6 Amplifiers and Other Analog Circuits 1
Jan 26, 2016
EE 4BD4 Lecture 6
Amplifiers and Other Analog Circuits
1
Need for Amplifiers
2
Operational Amplifiers(Important Specifications)
• Input Impedance• Gainbandwidth Product (GBWP)• Unit Gain Frequency Response• Slew Rate• Noise (Referred to Input)• Power Consumption• Offset Voltage• Power Supply Range
3
Rules for Circuit Design
• In the linear operating range voltages at each input terminal are equal
• Input impedance at each terminal = ∞
4
Typical Circuits
• Inverting Amplifier• Voltage Follower• Non Inverting Amplifier• Summing Amplifier• Active Filters• Differential Amplifier• Comparator
5
Active Filters
6
Comparator with Hysteresis
7
8
9
Monolithic Instrumentation Amplifier
10
11
12
13