Structured Manufacturing Data (2026)

Operational Amplifier (Op-Amp)

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Operational Amplifier (Op-Amp) used in the Computer, Electronic and Optical Product Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Operational Amplifier (Op-Amp) is characterized by the integration of Differential Input Stage and Gain Stage. In industrial production environments, manufacturers listed on CNFX commonly emphasize Silicon (Semiconductor) construction to support stable, high-cycle operation across diverse manufacturing scenarios.

A high-gain electronic voltage amplifier with differential inputs and single-ended output, used for signal conditioning and amplification in analog circuits.

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Product Specifications

Technical details and manufacturing context for Operational Amplifier (Op-Amp)

Definition
An operational amplifier is a fundamental component within the Analog Output Stage, serving as the primary active element for amplifying, filtering, and conditioning low-level analog signals before they are delivered to the final output. It provides the necessary gain, impedance matching, and signal integrity required to drive subsequent stages or loads.
Working Principle
The op-amp amplifies the voltage difference between its two input terminals (inverting and non-inverting) by a very high factor (open-loop gain). In practical circuits, negative feedback is applied using external resistors to set a precise, stable closed-loop gain, bandwidth, and other characteristics. Its internal architecture typically includes differential input stages, gain stages, and output buffer stages.
Common Materials
Silicon (Semiconductor), Gold or Aluminum (Bonding Wires), Ceramic or Plastic (Package)
Technical Parameters
  • Slew Rate - The maximum rate of change of the output voltage, critical for high-frequency signal fidelity in the output stage. (V/µs) Standard Spec
Components / BOM
  • Differential Input Stage Part
    Amplifies the voltage difference between the two input signals while rejecting common-mode signals.
    Material: Silicon transistors
  • Gain Stage
    Provides high voltage amplification of the signal from the input stage.
    Material: Silicon transistors
  • Output Buffer Stage Part
    Provides low output impedance to drive the load (e.g., speakers, actuators) in the analog output stage.
    Material: Silicon transistors

Industry Taxonomies & Aliases

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

high-gain operational amplifier for analog circuits op-amp for signal conditioning in electronics differential input single-ended output amplifier silicon semiconductor operational amplifier ceramic package op-amp for industrial applications

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Analog Output Stage
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Signal Processing Circuit
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Analog Front End (AFE)
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Signal Conditioning Circuit Board
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Measurement Circuit
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Feedback Interface Circuitry
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Transimpedance Amplifier (TIA)
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Subtractor (Difference Amplifier)
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Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
voltage: Supply voltage range (e.g., ±5V to ±18V)
other spec: Gain-bandwidth product, slew rate, input offset voltage
temperature: -40°C to +125°C (typical industrial range)
Media Compatibility
✓ Analog signal conditioning circuits ✓ Active filter designs ✓ Precision measurement systems
Unsuitable: High-frequency RF applications (>100MHz)
Sizing Data Required
  • Required gain (V/V)
  • Bandwidth requirement (Hz)
  • Supply voltage constraints (V)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Thermal runaway
Cause: Excessive power dissipation due to high load currents or inadequate heat sinking, leading to internal temperature rise beyond safe operating limits and permanent damage to semiconductor junctions.
Latch-up
Cause: Parasitic thyristor structures within the CMOS or BiCMOS op-amp being triggered by voltage transients or electrostatic discharge (ESD), causing a low-impedance path between power rails and resulting in catastrophic failure if current is not limited.
Maintenance Indicators
  • Audible high-frequency oscillation or 'squealing' from the circuit, indicating instability due to improper compensation or feedback loop issues.
  • Visual signs of overheating such as discoloration, bubbling, or charring of the op-amp package or nearby components on the PCB.
Engineering Tips
  • Implement proper decoupling: Place low-inductance capacitors (e.g., 0.1 µF ceramic) as close as possible to the power supply pins to minimize noise and prevent oscillations, and use bulk capacitors (e.g., 10 µF electrolytic) for stability under transient loads.
  • Adhere to absolute maximum ratings: Ensure input voltages stay within the supply rails (use clamping diodes if necessary), avoid output short-circuits with current limiting, and maintain junction temperature below specified limits through adequate heat sinking or derating in high-temperature environments.

Compliance & Manufacturing Standards

Reference Standards
IEC 60747-5-2:1997 (Semiconductor devices - Discrete devices - Part 5-2: Optoelectronic devices - Essential ratings and characteristics) ANSI/ESD S20.20-2021 (Protection of Electrical and Electronic Parts, Assemblies and Equipment) DIN EN 60747-5-2:2003-12 (Halbleiterbauelemente - Einzelbauelemente - Teil 5-2: Optoelektronische Bauelemente - Grundlegende Kenngrößen und Eigenschaften)
Manufacturing Precision
  • Gain Bandwidth Product: +/-10%
  • Input Offset Voltage: +/-5 mV
Quality Inspection
  • Electrical Parameter Testing (DC/AC characteristics)
  • Environmental Stress Screening (Temperature cycling, vibration)

Factories Producing Operational Amplifier (Op-Amp)

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the primary applications of this operational amplifier in electronic manufacturing?

This op-amp is designed for signal conditioning, amplification, filtering, and impedance matching in analog circuits, commonly used in audio equipment, sensor interfaces, control systems, and measurement devices within computer and optical product manufacturing.

How does the differential input stage benefit circuit performance?

The differential input stage provides high common-mode rejection, reducing noise and interference while amplifying only the voltage difference between inputs, resulting in cleaner signal processing and improved accuracy in electronic systems.

What advantages do ceramic packages offer over plastic for industrial applications?

Ceramic packages provide superior thermal conductivity, better hermetic sealing against moisture and contaminants, higher reliability in harsh environments, and improved performance stability for demanding industrial and optical manufacturing applications.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Computer, Electronic and Optical Product Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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