INDUSTRY COMPONENT

Operational Amplifier (Op-amp)

High-gain voltage amplifier with differential inputs and single-ended output for signal conditioning in industrial circuits.

View Specifications

Component Specifications

Definition
An operational amplifier (op-amp) is an integrated circuit that amplifies voltage differences between its two input terminals, providing high input impedance, low output impedance, and high gain. In industrial signal conditioning circuitry, it processes weak sensor signals (from temperature, pressure, strain gauges, etc.) by amplifying, filtering, or converting them into robust, standardized signals for control systems, data acquisition, or monitoring.
Working Principle
Operates using negative feedback to control gain and linearity: differential input voltage is amplified by a high open-loop gain (typically 100,000+), and feedback networks (resistors, capacitors) set closed-loop characteristics (gain, bandwidth, impedance). Key principles include virtual short (inputs at same potential in negative feedback) and high common-mode rejection ratio (CMRR) to reject noise.
Materials
Silicon semiconductor with doped regions for transistors; package materials: plastic (DIP, SOIC) or ceramic (for high-temp); gold or copper bonding wires; tin/lead or lead-free solder.
Technical Parameters
  • Slew Rate 0.5 V/μs to 1000 V/μs
  • Package Types DIP-8, SOIC-8, SOT-23
  • Supply Voltage ±5V to ±18V
  • Input Offset Voltage 0.1 mV to 5 mV
  • Operating Temperature -40°C to 125°C
  • Gain Bandwidth Product 1 MHz to 100 MHz
  • Common-Mode Rejection Ratio 70 dB to 120 dB
Standards
ISO 9001, IEC 60747, JEDEC JESD22

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Operational Amplifier (Op-amp).

operational amplifier op-amp signal conditioning industrial amplifier sensor interface voltage amplifier instrumentation amplifier feedback circuit Operational Amplifier (Op-amp) Operational Amplifier (Op-amp) in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Signal Conditioning Circuitry

Electronic circuitry that processes raw signals from optical sensors to prepare them for further analysis or conversion.

View Product Details

Signal Conditioning Circuit

Electronic circuit that prepares raw sensor signals for processing by industrial control systems

View Product Details

Analog Output Stage

The final stage in a Digital-to-Analog Converter (DAC) that converts processed electrical signals into continuous analog output signals suitable for driving external loads.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Thermal drift affecting gain stability
  • Oscillation due to improper feedback
  • Electrostatic discharge (ESD) damage
  • Saturation from input overvoltage
FMEA Triads
Trigger: Excessive thermal stress or aging
Failure: Gain drift or offset voltage shift
Mitigation: Use op-amps with low temperature coefficients; implement thermal management (heat sinks); regular calibration.
Trigger: Inadequate power supply decoupling
Failure: Oscillation or noise amplification
Mitigation: Place bypass capacitors (0.1 μF) near supply pins; follow PCB layout best practices.

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
Gain tolerance ±1% to ±10%; input offset voltage < 1 mV for precision apps
Test Method
Per IEC 60747: measure gain, bandwidth, CMRR with network analyzers; environmental testing per JEDEC standards.

Buyer Feedback

★★★★☆ 4.6 / 5.0 (36 reviews)

"Impressive build quality. Especially the technical reliability is very stable during long-term operation."

"As a professional in the Computer, Electronic and Optical Product Manufacturing sector, I confirm this Operational Amplifier (Op-amp) meets all ISO standards."

"Standard OEM quality for Computer, Electronic and Optical Product Manufacturing applications. The Operational Amplifier (Op-amp) arrived with full certification."

Related Components

Memory Module
Memory module for Industrial IoT Gateway data storage and processing
Storage Module
Industrial-grade storage module for data logging and firmware in IoT gateways
Ethernet Controller
Industrial Ethernet controller for real-time data transmission in Industrial IoT Gateways.
Serial Interface
Serial interface for industrial data transmission between IoT gateways and legacy equipment using RS-232/422/485 protocols.

Frequently Asked Questions

What is the role of an op-amp in industrial signal conditioning?

It amplifies weak sensor signals (e.g., from thermocouples or pressure transducers) to usable levels, filters noise, and provides impedance matching for accurate data acquisition and control in industrial machinery.

How do I choose an op-amp for high-noise environments?

Select op-amps with high Common-Mode Rejection Ratio (CMRR > 90 dB), low input offset voltage, and adequate bandwidth. Use shielding and proper PCB layout to minimize electromagnetic interference.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

Get Quote for Operational Amplifier (Op-amp)

On-Chip Memory Cache Operational Amplifier IC