Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
MAX4751EGE

MAX4751EGE

Analog Devices, Inc.

MAX4751 QUAD SPST ANALOG SWITCH

0

MAX314ESE

MAX314ESE

Analog Devices, Inc.

QUAD, R-R, SPST ANALOG SWITCH

900

MAX4573CWI

MAX4573CWI

Analog Devices, Inc.

CLICKLESS AUDIO/VIDEO SWITCH

884

MAX320CPA

MAX320CPA

Analog Devices, Inc.

DUAL-SUPPLY, SPST ANALOG SWITCH

0

MAX4721EBL

MAX4721EBL

Analog Devices, Inc.

4.5 OHMS DUAL SPST ANALOG SWITCH

3429

ADG3241BKS-REEL7

ADG3241BKS-REEL7

Analog Devices, Inc.

IC BUS SWITCH 1 X 1:1 SC70-6

51853

MAX394MJP

MAX394MJP

Analog Devices, Inc.

QUAD, SPDT ANALOG SWITCH

720

MAX4638EGP

MAX4638EGP

Analog Devices, Inc.

SINGLE 8:1 ANALOG MUX

754

AD8152JBPZ

AD8152JBPZ

Analog Devices, Inc.

IC CROSSPOINT SW 1X34:34 256SBGA

3

MAX358EJE

MAX358EJE

Analog Devices, Inc.

FAULT PROTECTED ANALOG MUX

557

MAX4748EBE

MAX4748EBE

Analog Devices, Inc.

MAX4748 QUAD SPST ANALOG SWITCH

1390

MAX764CPA

MAX764CPA

Analog Devices, Inc.

MAX764 8-CHANNEL LATCHABLE MUX

900

DS2408S

DS2408S

Analog Devices, Inc.

8-CHANNEL ADDRESSABLE SWITCH

43

DG308ACK

DG308ACK

Analog Devices, Inc.

DG308 QUAD, SPST ANALOG SWITCH

2522

DG409CUE

DG409CUE

Analog Devices, Inc.

DUAL 4-CHANNEL ANALOG MUX

938

MAX369MJN

MAX369MJN

Analog Devices, Inc.

FAULT-PROTECTED ANALOG MUX

0

MAX398EEE

MAX398EEE

Analog Devices, Inc.

8-CH LOW-VOLTAGE ANALOG MUX

494

MAX1605ETT

MAX1605ETT

Analog Devices, Inc.

30V LCD BIAS SUPPLY

3350

MAX4800CQI

MAX4800CQI

Analog Devices, Inc.

8-CHAN, ANALOG SWITCH

44

MAX312LESE

MAX312LESE

Analog Devices, Inc.

QUAD, R-R, SPST ANALOG SWITCH

693

Logic - Signal Switches, Multiplexers, Decoders

1. Overview

Signal switches, multiplexers, and decoders are fundamental logic ICs used to manage signal routing and data selection in electronic systems. Signal switches control the flow of electrical signals, multiplexers select between multiple input signals, and decoders convert encoded signals into specific outputs. These components are critical in modern technologies such as telecommunications, computing, and industrial automation, enabling efficient data handling and system design simplification.

2. Main Types and Functional Classification

TypeFunctional FeaturesApplication Examples
Signal SwitchesDigital/analog switches with on/off controlAudio routing, power management
Multiplexers (MUX)2:1 to 16:1 channel selection, data bus sharingNetwork switches, sensor data aggregation
DecodersBinary-to-decimal, BCD-to-7-segment conversionMemory address decoding, display drivers

3. Structure and Composition

These ICs typically use CMOS or TTL technology with standard packages like DIP, SOP, and QFN. Internal components include transistor arrays, logic gates, and channel control circuits. For example, a 4-channel analog switch integrates four independent switching elements in a single package with common control lines.

4. Key Technical Specifications

ParameterDescriptionImportance
On-resistance (RON)Resistance in conducting stateImpacts signal integrity
BandwidthMaximum signal frequency supportedDetermines high-speed capability
Channel countNumber of independent pathsSystem scalability
Power consumptionQuiescent current and switching lossBattery life consideration
Propagation delaySignal transmission timeCritical for timing-sensitive systems

5. Application Areas

  • Telecommunications: Signal routing in base stations
  • Automotive: Sensor signal selection in ECUs
  • Consumer Electronics: HDMI switch boxes
  • Industrial: PLC signal conditioning
  • Computing: Memory address decoding in CPUs

6. Leading Manufacturers and Products

ManufacturerRepresentative ProductKey Features
TISN74CB3Q324510- RON, 2.3V-3.6V supply
Analog DevicesADG14124-channel switch, 165MHz bandwidth
NXP74HC1518:1 multiplexer, 70MHz operation
STMicroelectronicsCD4028BEBCD-to-decimal decoder, 18V rating

7. Selection Guidelines

  • Channel requirements: Match input/output count needs
  • Signal type: Choose analog/digital switches accordingly
  • Voltage compatibility: Ensure supply voltage matches system rails
  • Speed vs. power trade-off: High bandwidth increases consumption
  • Package constraints: Consider PCB space and thermal requirements

8. Industry Trends

Current developments focus on miniaturization (0.4mm pitch packages), lower on-resistance (<1 ), and integration with level-shifting functions. The rise of IoT and 5G drives demand for high-frequency switches (up to 10GHz) with sub-mW standby power. Advanced CMOS processes enable higher channel density while maintaining signal integrity in automotive-grade temperature ranges.

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