Line Driver/Amplifier

Product Specifications

Technical details and manufacturing context for Line Driver/Amplifier

Definition

A line driver/amplifier is a critical component within the Communication PHY (Physical Layer) that boosts signal strength, improves signal integrity, and enables reliable data transmission over various communication media including copper wires, fiber optics, or wireless channels. It serves as an interface between the digital processing circuitry and the physical transmission medium. This component is used in computer, electronic, and optical product manufacturing, where it is integrated into devices such as network interface cards, industrial controllers, and communication modules. The line driver receives low-power electrical signals from the transmitter circuitry, amplifies them to appropriate voltage/current levels for transmission, and may perform signal conditioning such as impedance matching, noise filtering, and waveform shaping. It ensures signals maintain sufficient strength and quality to overcome attenuation and interference during transmission over the physical medium. Typical parameters include supply voltage of 3.3–5.5 V, supply current of 5–20 mA, data rate of 1–50 Mbps, output voltage swing of ±2.5–±5 V, output current of 10–50 mA, input impedance of 10–100 kΩ, operating temperature of -40–85 °C, propagation delay of 5–20 ns, rise/fall time of 2–10 ns, package type SOIC-8, ESD protection of ±8 kV (IEC 61000-4-2), and common-mode voltage range of -7–12 V for RS-485 transceivers. Materials on file include semiconductor silicon, copper conductors, and ceramic substrate. These values are reference ranges and must be verified for the specific model and application. Standards listed are procurement references, not proof of certification. Always confirm model-specific values and standards with the legal manufacturer or supplier.

Working Principle

The line driver receives low-power electrical signals from the transmitter circuitry, amplifies them to appropriate voltage/current levels for transmission, and may perform signal conditioning such as impedance matching, noise filtering, and waveform shaping. It ensures signals maintain sufficient strength and quality to overcome attenuation and interference during transmission over the physical medium.

Common Materials

Semiconductor silicon, Copper conductors, Ceramic substrate

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	3.3–5.5 V	Operating range for typical logic levels
Supply Current	5–20 mA	Depends on output load and data rate
Data Rate	1–50 Mbps	Maximum guaranteed by design
Output Voltage Swing	±2.5–±5 V	Differential output swing
Output Current	10–50 mA	Maximum drive capability
Input Impedance	10–100 kΩ	High impedance to minimize loading
Operating Temperature	-40–85 °C	Industrial grade
Propagation Delay	5–20 ns	Typical for high-speed operation
Rise/Fall Time	2–10 ns	Ensures signal integrity
Package Type	SOIC-8	Common surface-mount package
ESD Protection	±8 kV	HBM ratingIEC 61000-4-2
Common-Mode Voltage Range	-7–12 V	For RS-485 transceivers

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Components / BOM

Output Stage Transistors Part
Provide current amplification and drive capability for the transmission line

Material: Silicon semiconductor
Input Buffer
Receive and condition input signals from preceding circuitry

Material: Semiconductor
Bias Circuitry Part
Establish proper operating points for amplification stages

Material: Resistors and capacitors
Protection Diodes Part
Protect against voltage spikes and electrostatic discharge

Material: Semiconductor

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Line Driver/Amplifier.

Applied To / Applications

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

Communication PHY (Physical Layer)

View system integration details

Manufacturers of Line Driver/Amplifier

Manufacturer profiles associated with Line Driver/Amplifier.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review · Page last updated 16 September 2026

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

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Manufacturing capability

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Frequently Asked Questions

What is the primary function of a line driver/amplifier?

It amplifies low-power signals from transmitter circuitry to suitable levels for transmission over communication media, while conditioning the signal to maintain integrity.

What are typical supply voltage and current ranges?

Typical supply voltage is 3.3–5.5 V and supply current is 5–20 mA, but these are reference ranges that must be confirmed for the specific model.

What standards apply to ESD protection?

The ESD protection rating is ±8 kV per IEC 61000-4-2, but this is a reference value; verify compliance with the manufacturer.

How do I select the right line driver for my application?

Consider data rate, output voltage swing, output current, input impedance, operating temperature, and package type. Always verify with the manufacturer for your specific requirements.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records.

Preliminary Technical Classification

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voltage:	±15V DC supply range
bandwidth:	DC to 100 MHz typical
impedance:	50Ω or 75Ω matched
temperature:	-40°C to +85°C
output current:	±20 mA max

Product Specifications

Industry Taxonomies & Aliases

Applied To / Applications

Industrial Ecosystem & Supply Chain Structure

Application Fit & Sizing Matrix

Reliability & Engineering Risk Analysis

Compliance & Manufacturing Standards