ST's product portfolio includes operational amplifiers and comparators dedicated to the challenging industrial, automotive and consumer markets.
The main features of our growing portfolio are low power, high precision and tiny packages.
The range of products allows easy and fast integration of analog products inside signal conditioning, monitoring and control solutions.
Explore our most commonly used amplifiers. Download our quick reference guide.
Operational amplifiers
High performance, low power, precision, automotive-grade qualified op amps and tiny packages.
Comparators
High-speed, low-power, automotive-grade qualified comparators, outstanding robustness and tiny packages.
Current sense amplifiers
Integrated solution, robust devices and automotive-grade qualified current sense amplifiers.
Video amplifiers
Single and triple video buffers/filters, with or without power-down function, for HD or SD applications.
Power op amp
High output current, low drop and high gain. Power op amp available in insertion and surface-mount packages.
Featured Videos
Are you wondering how to deal with small analog signal to transfer it to the digital domain without adding any error that could compromise the information? This video helps you to understand what an operational amplifier is, and how to choose and use precision op amp effectively.
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eDesignSuite
eDesignSuite is a comprehensive set of easy-to-use design-aid utilities ready to help you streamline the system development process with a wide range of ST products.
Power Management Design Center
Thermal-electrical Simulators for Components
Signal Conditioning Design Tool
NFC/RFID Calculators
Power Supply Design Tool
SMPS design, by topology, by type and by product PFC design with analog and digitial control Supports various PCB configurations 
LED Lighting Design Tool
Handles AC-DC and DC-DC design in common topologies Displays interactive and annotated schematic Provides current/voltage graphs, Bode plots, efficiency curves and power-loss data 
Digital Power Workbench
Provides a step-by-step optimized design of power section and control loop Generates the STM32Cube embedded software package for custom applications and allows firmware project generation, compatible with multiple STM32 IDEs 
Power Tree Designer
Specify input/output power for each node in the tree Check for consistency Design each individual node 
AC Switches Simulator
Select ratings and application waveforms Get junction temperature and blocking voltage graphs Search and sort suitable devices 
Rectifier Diodes Simulator
Select ratings and application waveforms Estimate power losses Search and sort suitable devices 
STPOWER Studio
Supports long mission profiles Provides power loss and temperature graphs Helps define heatsink thermal properties 
Twister Sim
Help select the right ViPOWER Automotive power device Supports load-compatibility, wiring harness optimization, fault condition impact and diagnostic analysis Supports various PCB configurations 
TVS Simulator
Specify system ratings and surge waveform Search and sort suitable devices 
Active Filters
Handles multi-stage-designs and common topologies Returns circuit component values Provides gain, phase and group delay graphs Low Pass, High Pass and Band Pass 
Comparators
Handles most common configurations Returns circuit components values Provides I/O signal waveforms Inverting, Non Inverting, Window 
Low side Current Sensing
Returns circuit component values Provides current error graphs 
High side Current Sensing
Provides current error graphs. Help to select the right High side current sensing and shunt devices. 
NFC Inductance
Input geometry and substrate properties Get antenna impedance 
UHF Link Budget
Enter forward and reverse link characteristics The tool returns link budget estimate 
NFC Tuning Circuit
Enter antenna parameter and matching target Select the topology of the matching network The tool returns component values for the desired design targets