Analog Multiplexer Component - Industrial Directory

Product Specifications

Technical details and manufacturing context for Analog Multiplexer

Definition

An analog multiplexer is a critical component within peripheral interface systems, particularly in ADC/DAC applications, where it enables a single analog-to-digital or digital-to-analog converter to process multiple analog signals by sequentially switching between different input channels. This component is used in data acquisition systems, instrumentation, and communication equipment to route analog signals efficiently. The multiplexer typically features 4 to 16 channels, allowing a single converter to handle multiple inputs. It operates with a supply voltage ranging from 2.7 to 12 V DC, and its on-resistance varies from 4 to 120 ohms, which affects signal attenuation. Leakage current is in the range of 0.01 to 5 nA, critical for high-impedance circuits. Bandwidth spans from 20 to 500 MHz, ensuring suitability for various signal frequencies. Switching times, including turn-on and turn-off, are between 20 and 200 ns. The operating temperature range is -40 to 85°C for industrial grade, with extended ranges available. ESD rating, according to IEC 61000-4-2 (HBM model), is 2 to 8 kV. Package types include SOIC-16 to TSSOP-16, with weight ranging from 0.1 to 0.5 g. These parameters are typical reference ranges; actual values must be confirmed with the manufacturer for specific models. The component is fabricated using silicon semiconductor technology, with metal interconnects and plastic or ceramic packaging. It is essential to verify model-specific specifications and standards with the legal manufacturer or supplier before procurement.

Working Principle

The analog multiplexer operates using solid-state switches (typically MOSFETs or CMOS transistors) controlled by digital select lines. When specific digital codes are applied to the select inputs, corresponding switches close to connect one analog input channel to the common output, while all other channels remain isolated. This allows sequential routing of multiple analog signals to a single output, enabling efficient use of downstream converters. The selection is determined by the binary code on the select pins, and the switching is fast and reliable, with minimal signal distortion. The on-resistance and leakage current are key parameters that influence signal integrity. The device is designed to handle a wide range of analog voltages within its supply limits, and it provides high isolation between channels when not selected.

Common Materials

Silicon semiconductor, Metal interconnects, Plastic/ceramic packaging

Technical Parameters

Parameter	Typical range	Notes & selection driver
Number of Channels	4–16	Select based on input signals to multiplex.
Supply Voltage	2.7–12 V DC	Single or dual supply; check datasheet for range.
On-Resistance	4–120 Ω	Lower RON reduces signal attenuation.
Leakage Current	0.01–5 nA	Critical for high-impedance circuits.
Bandwidth	20–500 MHz	Ensure sufficient for signal frequency.
Switching Time	20–200 ns	Includes turn-on and turn-off times.
Operating Temperature	-40–85 °C	Industrial grade; extended ranges available.
ESD Rating	2–8 kV	HBM model; higher is better for robustness.IEC 61000-4-2
Package Type	SOIC-16–TSSOP-16	Footprint and thermal performance vary.
Weight	0.1–0.5 g	Depends on package; for PCB design.

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

Switch Array Part
Contains individual analog switches for each input channel

Material: Silicon semiconductor
Decoder/Control Logic Part
Interprets digital select signals to activate the appropriate switch

Material: Silicon semiconductor
Input/Output Pins Part
Electrical connections for analog signals and control signals

Material: Copper alloy with gold/nickel plating

Applied To / Applications

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

Peripheral Interfaces (ADC/DAC)

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Voltage Sensing Network

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Manufacturers of Analog Multiplexer

Manufacturer profiles associated with Analog Multiplexer.

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Frequently Asked Questions

What is the typical number of channels in an analog multiplexer?

Analog multiplexers typically have 4 to 16 channels, allowing a single ADC or DAC to process multiple analog signals. The exact number depends on the specific model and application requirements.

How does supply voltage affect the operation of an analog multiplexer?

The supply voltage range for analog multiplexers is typically 2.7 to 12 V DC. It determines the allowable input signal swing and must be selected based on the system's power rails. Always check the datasheet for the exact range.

What is on-resistance and why is it important?

On-resistance (RON) is the resistance between the input and output when the switch is closed. Lower RON reduces signal attenuation and distortion. Typical values range from 4 to 120 ohms, and the actual value should be confirmed for the specific model.

What standards apply to ESD rating for analog multiplexers?

The ESD rating is specified according to IEC 61000-4-2 (HBM model), with typical values from 2 to 8 kV. This rating indicates the device's robustness against electrostatic discharge. Always verify the rating with the manufacturer for the specific part.

Data Basis

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

Preliminary Technical Classification

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voltage:	±15V maximum supply voltage
temperature:	-40°C to +125°C (typical industrial range)
on resistance:	50-500 Ω (channel dependent)
switching time:	100-500 ns (typical)
signal bandwidth:	Up to 100 MHz (depending on model)

Analog Multiplexer

Product Specifications

Applied To / Applications

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