Output Driver/Buffer Component | Industrial Line Receiver Interface

Product Specifications

Technical details and manufacturing context for Output Driver/Buffer

Definition

An output driver/buffer is an electronic component within a line receiver system that receives processed signals and prepares them for transmission to downstream devices. It provides impedance matching, signal amplification, and noise isolation to ensure clean, reliable signal output while protecting the receiver's internal circuitry from external load variations. This component is typically used in industrial communication interfaces, data acquisition systems, and control networks where signal integrity over longer distances or into lower-impedance loads is critical. The output driver/buffer operates by taking low-level signals from the line receiver's processing stage and boosting them to appropriate voltage and current levels. It presents a low output impedance to the connected load, which helps maintain signal fidelity and reduces reflections. The device includes protection circuits against short circuits, overvoltage, and electrostatic discharge, and it uses impedance matching and noise filtering to preserve signal quality. Typical parameters include a supply voltage range of 3.3–5 V, output current of 20–50 mA per channel, propagation delay of 5–15 ns, and output impedance matched to 50–120 Ω. The operating temperature range is -40 to 85 °C, with humidity tolerance of 5–95% RH (non-condensing). ESD tolerance is ±2 to ±8 kV (HBM, contact discharge) per IEC 61000-4-2. The device is available in SOIC-8 to SOIC-16 packages (JEDEC MS-012). Power dissipation is 0.1–0.5 W at full load and high frequency. Input voltage range is 0–5.5 V, and output voltage swing is rail-to-rail (0–3.3 V). Rise/fall time is 2–10 ns at 20%–80% of output swing. Materials include semiconductor silicon, copper, and epoxy resin. These values are reference ranges; actual specifications must be confirmed with the manufacturer for the specific model and application. Standards listed are for verification purposes and do not imply certification.

Working Principle

The output driver/buffer receives low-level signals from the line receiver's processing stage. It amplifies these signals to the required voltage and current levels, and provides a low output impedance to drive connected loads effectively. The circuit includes protection against short circuits, overvoltage, and electrostatic discharge. It maintains signal integrity through impedance matching and noise filtering, ensuring clean transmission to downstream devices.

Common Materials

Semiconductor silicon, Copper, Epoxy resin

Technical Parameters

Parameter	Typical range	Notes & selection driver
Supply Voltage	3.3–5 V	Operating range for logic and output stages
Output Current	20–50 mA	Maximum continuous output current per channel
Propagation Delay	5–15 ns	Input to output delay at specified load
Output Impedance	50–120 Ω	Matched to transmission line impedance
Operating Temperature	-40–85 °C	Extended temperature range for industrial useIEC 60068-2-1/2
ESD Tolerance	±2–±8 kV	HBM model, contact dischargeIEC 61000-4-2
Input Voltage Range	0–5.5 V	Acceptable input levels for logic signals
Rise/Fall Time	2–10 ns	At 20%-80% of output swing
Package Type	SOIC-8–SOIC-16	Surface mount, small outlineJEDEC MS-012
Power Dissipation	0.1–0.5 W	Maximum at full load and high frequency
Humidity Range	5–95 % RH	Non-condensingIEC 60068-2-78
Output Voltage Swing	0–3.3 V	Rail-to-rail output for full logic levels

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 Transistor Stage Part
Provides current amplification and voltage swing capability

Material: Semiconductor silicon
Bias Circuit Part
Sets operating point and provides temperature compensation

Material: Semiconductor silicon, resistors
Protection Circuit
Prevents damage from overcurrent, overvoltage, and ESD events

Material: Semiconductor silicon, diodes
Output Pads Part
Electrical connection points for external wiring

Material: Copper, gold plating
Impedance Matching Circuit
Matches the driver to the line so the launched edge is not reflected back.
Noise Filter
Keeps switching noise off the outgoing signal.

Applied To / Applications

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

Line Receiver

View system integration details

Output Register

View system integration details

Manufacturers of Output Driver/Buffer

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Frequently Asked Questions

What is the primary function of an output driver/buffer?

It amplifies and conditions signals from a line receiver for reliable transmission to downstream devices, providing impedance matching and noise isolation.

What are typical supply voltage and output current ranges?

Supply voltage is typically 3.3–5 V, and output current is 20–50 mA per channel, but these are reference ranges; confirm with the manufacturer.

What protection features does it include?

It includes protection against short circuits, overvoltage, and electrostatic discharge (ESD tolerance ±2 to ±8 kV per IEC 61000-4-2).

How should I verify specifications for my application?

Always check the datasheet and confirm model-specific values and standards with the legal manufacturer or supplier, as listed parameters are reference ranges.

Data Basis

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Preliminary Technical Classification

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current:	Up to 500mA continuous
voltage:	3V to 36V
frequency:	DC to 100MHz
temperature:	-40°C to +125°C

Output Driver/Buffer

Product Specifications

Applied To / Applications

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Application Fit & Sizing Matrix

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