INDUSTRY COMPONENT

Switch Array

A switch array is an integrated circuit component that routes multiple analog signals through a single output channel in analog multiplexers.

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Component Specifications

Definition
A switch array is a semiconductor-based electronic component consisting of multiple analog switches arranged in a matrix configuration, designed to selectively connect multiple input signals to a common output line in analog multiplexing applications. It enables sequential or parallel switching of analog voltage or current signals with minimal signal degradation, high isolation between channels, and precise control through digital addressing.
Working Principle
The switch array operates by using field-effect transistors (FETs) or CMOS technology as switching elements. Each switch is controlled by digital address lines that activate specific paths through decoder logic. When a particular channel is selected, the corresponding switch closes, creating a low-resistance path for the analog signal to pass through to the output, while all other switches remain open to prevent crosstalk and signal interference.
Materials
Silicon substrate with CMOS or BiCMOS technology, aluminum or copper metallization layers, silicon dioxide insulation, gold bonding wires, ceramic or plastic packaging (DIP, SOIC, QFP).
Technical Parameters
  • Bandwidth DC to 500 MHz
  • Switch Type SPST (Single-Pole Single-Throw)
  • Package Type DIP-16, SOIC-16, TSSOP-24, QFN-32
  • Channel Count 4 to 64 channels
  • Off-Isolation >70 dB at 1 MHz
  • On-Resistance 5-100 ohms
  • Supply Voltage ±5V to ±15V dual supply or 3V to 5V single supply
  • Switching Speed 50 ns to 500 ns
Standards
ISO 9001, IEC 60747, JEDEC JESD22

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Switch Array.

analog switch array multiplexer component signal routing CMOS switches industrial electronics channel selector analog multiplexing Switch Array Switch Array in Computer, Electronic and Optical Product Manufacturing

Parent Products

This component is used in the following industrial products

Analog Multiplexer

An electronic component that selects one of several analog input signals and forwards the selected input to a single output line.

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Input Multiplexer

A switching component that selects and routes multiple analog input signals to a single ADC channel.

View Product Details

Engineering Analysis

Risks & Mitigation
  • Signal crosstalk between channels
  • Thermal runaway in high-frequency operation
  • Electrostatic discharge damage
  • Latch-up in CMOS devices
  • Contact degradation over switching cycles
FMEA Triads
Trigger: Exceeding maximum voltage ratings
Failure: Permanent damage to switching transistors
Mitigation: Implement overvoltage protection circuits and adhere to specified operating conditions
Trigger: High switching frequency beyond specifications
Failure: Increased on-resistance and signal distortion
Mitigation: Use derating guidelines and thermal management for high-frequency applications
Trigger: Poor PCB layout and grounding
Failure: Signal integrity issues and electromagnetic interference
Mitigation: Follow manufacturer's layout guidelines, use proper ground planes, and minimize trace lengths

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5% for on-resistance matching between channels, ±1% for signal path linearity
Test Method
Four-point probe measurement for on-resistance, network analyzer for frequency response, automated test equipment for switching characteristics

Procurement Evaluation Criteria

Not customer reviews or live demand data. These dimensions support RFQ preparation and supplier evaluation.

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 is the difference between a switch array and a digital multiplexer?

A switch array handles analog signals with continuous voltage/current values, while digital multiplexers process discrete binary signals. Switch arrays maintain signal integrity without digitization.

How does on-resistance affect switch array performance?

Higher on-resistance causes signal attenuation and distortion, particularly in high-frequency applications. Lower on-resistance (typically <50 ohms) ensures minimal signal loss and better accuracy.

Can switch arrays handle both AC and DC signals?

Yes, most switch arrays support both AC and DC signals within their specified voltage and frequency ranges, making them versatile for various analog signal routing applications.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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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