Operational Amplifiers (Op Amps)
The operational amplifier (op amp) is an important part of any analog signal chain, often working as a crucial part of the interface between sensors and our world-leading ADCs. Common analog op amp functions include gain, buffering, filtering, and level-shifting. Analog Devices’ portfolio provides the broadest choice of op amps in the industry, delivering unmatched quality, robustness, and performance to enable optimized solutions in automotive, industrial, consumer, and healthcare markets.
Explore op amps by parameters and find expert system-level advice on design problems with our reference designs (Circuits from the Lab®), design tools, selection guides, filter design, calculators, and LTSpice®/SPICE models for operational amplifiers.
Explore op amps by parameters and find expert system-level advice on design problems with our reference designs (Circuits from the Lab®), design tools, selection guides, filter design, calculators, and LTSpice®/SPICE models for operational amplifiers.
Subcategories
Product Selection Table
- Current Feedback Op Amps
- General Purpose Op Amps
- High Output Current Op Amps ≥ 100mA
- High Speed Op Amps (Bandwidth ≥ 50MHz)
- High Voltage Op Amps ≥12V
- JFET Input Op Amps
- Low Input Bias Current Op Amps (≤100 pA)
- Low Noise Op Amps (≤ 10nV/√Hz)
- Low Power Op Amps (≤ 1mA/amp)
- Precision Op Amps (Vos ≤1mV & TCVos ≤2uV/C)
- Rail-to-Rail Op Amps
- Zero-Drift Op Amps
Analog Filter Wizard Design Tool
Use the Analog Filter Wizard to design low-pass, high-pass, or band-pass filters with actual op amps in minutes. As you progress through the design process, you can observe the characteristics of your filter design from ideal specifications to real world circuit behavior. Quickly evaluate the tradeoffs in op amp specifications - including gain-bandwidth, noise, and supply current – to determine the best filter design for your requirements.
Latest Resources
Application Notes
- AN-417: Fast Rail-to-Rail Operational Amplifiers Ease Design Constraints in Low Voltage High Speed Systems
- AN-107: ADM1068/ADM1069/ADM1168/ADM1169 Configuration Registers PDF
- AN-1375: Output Current Monitoring of High Voltage Class D Amplifiers (Rev. 0) PDF
- AN-357: Operational Integrators PDF
- AN-359: Settling Time of Operational Amplifiers PDF
Press Release
Design Notes Page
Technical Articles
- Series Connection of Op Amps: How to Achieve Precision with Simultaneously Higher Output Power
- Isolated pH Monitor with Temperature Compensation
- A Simple Way of Measuring Soil Moisture and pH with Temperature Compensation
- Design, Development, and Evaluation of a System to Obtain Electrodermal Activity
- Challenges for Electronic Circuits in Space Applications
Product Selection Guide
Technical Books
Design Tools
Webcast
- Noise Optimization in Sensor Signal Conditioning Circuits (Part II)
- Counting Electrons: Making Ultra-high Sensitivity Femtoamp Measurements
- Precision basics: How not to be surprised by unexpected error sources
- Noise Analysis in Precision Analog Designs
- Fundamentals of Operational Amplifiers
Videos
- LT8365 High-Voltage Micropower Boost/SEPIC/Inverting Converter
- Precision DAC Lesson 9: Waveform Generation Applications
- Precision DAC Lesson 6: Bias Generation Applications
- Precision DAC Lesson 8: Positioning and Control Applications
- Precision DAC Lesson 7: Offset and Gain Control Applications
Tutorials
- MT-041: Op Amp Input and Output Common-Mode and Differential Voltage Range PDF
- MT-045: Op Amp Bandwidth and Bandwidth Flatness PDF
- MT-055: Chopper Stabilized (Auto-Zero) Precision Op Amps PDF
- MT-053: Op Amp Distortion: HD, THD, THD + N, IMD, SFDR, MTPR PDF
- MT-052: Op Amp Noise Figure: Don't Be Misled PDF
Analog Dialogue
- A Direct Method of Measuring Op Amp Input Differential Capacitance
- Composite Amplifiers: High Output Drive Capability with Precision
- Can You Really Get ppm Accuracies from Op Amps?
- Analysis of Input Current Noise with Even Harmonics Folding Effect in a Chopper Op Amp
- High Precision Voltage Source
Frequently Asked Questions
- Why would I want to drive a capacitive load, and how does it affect op amp performance?
- What do I need to know about OpAmp Noise?
- I’m not sure I understand how current-feedback amplifiers work, I’ve heard that their bandwidth is constant regardless of gain. How does that work?
- What are some of the issues with using an amplifier as a comparator?
- I’m not sure I understand how current-feedback amplifiers work, I’ve heard that their bandwidth is constant regardless of gain. How does that work?