Introduction to Operational Amplifiers

1

Part 1 - Background, Characteristics, and Fundamental Operations
- Key Concepts
- History
- Ideal Parameters
- Terminals
- Input Modes
- Transfer Characteristics
- Ideal Parameters Revisited
- Linearity
- Specifications
- DC Specifications Explained
- Input Voltage Range (VIN, VD, VCM)
- Output Voltage Swing (VOH, VOL)
- Feedback
- Open Loop Gain
- Closed Loop Gain
- Bandwidth
- Input Offset Voltage (VOS)
- Input Bias Offset Current
- Common Mode Rejection Ratio (CMRR)
- Power Supply Rejection (PSRR)
- Power Supply Requirements
- Input Impedance
- Output Impedance
- AC Specifications
- Bode Plot
- Gain Bandwidth Product
- Closed Loop Gain Bandwidth
- Phase and Gain Margins
- Slew Rate
- Settling Time and Overshoot
2

Part 2 - Basic Op-Amp Configurations
- Part II - Basic Op-Amp Configurations
- Closed Loop Configuration
- Inverting Amplifiers
- Non-Inverting Amplifiers
- Voltage Follower
- Open Loop Configuration
- Comparators
3

Part 3 - Op-Amp Responses
- Key Concepts
- Open Loop Gain Revisited
- Decibels (dB)
- Closed Loop Gain Revisited
- Bandwidth Revisited
- Stability
- Phase Margin and Gain Margin
- Internal and External R-C Networks
- Compensation Network
- Internal and External R-C Networks
4

Part 4 - Basic Op-Amp Circuits: Comparators and Summing Amplifiers
- Key Concepts
- Comparators
- Comparators with Hysteresis (Schmitt Trigger)
- Inverting Summing Amplifier
- Non-Inverting Summing Amplifier
5

Part 5 - Basic Op-Amp Circuits: Integrators, Differentiators, and Converters
- Key Concepts
- Integrators
- Differentiators
6

Part 6 - Active Filters: Low Pass, High Pass, and Band Pass
- Key Concepts
- Low Pass Filters
- High Pass Filters
- Band Pass Filters
- Microchip FilterLab® Software
- Butterworth Filters
- Chebyshev Filters
- Bessel Filters
- Filter Summary
- Filter Design Example
- Mindi Filter Examples
7

Part 7 - Basic Op-Amp Circuits: Oscillators and Timers
- Key Concepts
- Oscillator Basics
- Feedback Oscillators
- Phase Shift Oscillators
- Relaxation Oscillators
- Square Wave Oscillators
8

Part 8 - Special Function Amplifiers
- Key Concepts
- Instrumentation Amplifiers
- Instrumentation Amplifier Applications
- Programmable Gain Amplifiers
- How did we do?

Introduction to Operational Amplifiers

This self-paced class begins with operational amplifier (op-amp) concepts and terminology such as op-amp definition, op-amp terminals, op-amp input modes, op-amp basic ideal characteristics, specifications, feedback configurations, etc.

Course curriculum

Part 1 - Background, Characteristics, and Fundamental Operations

Part 2 - Basic Op-Amp Configurations

Part 3 - Op-Amp Responses

Part 4 - Basic Op-Amp Circuits: Comparators and Summing Amplifiers

Part 5 - Basic Op-Amp Circuits: Integrators, Differentiators, and Converters

Part 6 - Active Filters: Low Pass, High Pass, and Band Pass

Part 7 - Basic Op-Amp Circuits: Oscillators and Timers

Part 8 - Special Function Amplifiers