Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
MAX6503UKN005

MAX6503UKN005

Analog Devices, Inc.

MICROPOWER TEMPERATURE SWITCH

1377

DG381AAK

DG381AAK

Analog Devices, Inc.

GENERAL PURPOSE ANALOG SWITCH

1420

MAX6512UT045

MAX6512UT045

Analog Devices, Inc.

REMOTE TEMPERATURE SWITCH

1985

MAX5922AEUI

MAX5922AEUI

Analog Devices, Inc.

MAX5922 NETWORK POWER SWITCH

2070

MAX395EAG.TG071

MAX395EAG.TG071

Analog Devices, Inc.

LOW-VOLTAGE, 8-CH SPST SWITCH

22000

IH5140MJE

IH5140MJE

Analog Devices, Inc.

LOW POWER FAST ANALOG SWITCH

484

MAX313LETP

MAX313LETP

Analog Devices, Inc.

QUAD, R-R, SPST ANALOG SWITCH

225

MAX4581EGE

MAX4581EGE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG MUX/SWITCH

6845

MAX766ESA

MAX766ESA

Analog Devices, Inc.

MAX766 8-CHANNEL LATCHABLE MUX

0

ADG3245BRU-REEL7

ADG3245BRU-REEL7

Analog Devices, Inc.

IC BUS SWITCH 8 X 1:1 20TSSOP

20521

MAX4947ETG

MAX4947ETG

Analog Devices, Inc.

MAX4947 HEX SPDT DATA SWITCH

434

MAX4572EWI

MAX4572EWI

Analog Devices, Inc.

CLICKLESS AUDIO/VIDEO SWITCH

41

MAX4721EBL-T

MAX4721EBL-T

Analog Devices, Inc.

4.5 OHMS DUAL SPST ANALOG SWITCH

2500

MAX4735EUE

MAX4735EUE

Analog Devices, Inc.

MAX4735 QUAD-SPDT ANALOG SWITCH

1667

MAX4719EBC-T

MAX4719EBC-T

Analog Devices, Inc.

MAX4719 DUAL SPDT ANALOG SWITCH

5000

ADN4604ASVZ-RL

ADN4604ASVZ-RL

Analog Devices, Inc.

IC CROSSPOINT SW 1X16:16 100TQFP

519

MAX4737EUD

MAX4737EUD

Analog Devices, Inc.

MAX4737 QUAD SPST ANALOG SWITCH

0

MAX1940EEE

MAX1940EEE

Analog Devices, Inc.

TRIPLE USB SWITCH WITH AUTORESET

1064

MAX4674EGP

MAX4674EGP

Analog Devices, Inc.

WIDEBAND QUAD 2:1 ANALOG MUX

2062

DG507AMWI/PR

DG507AMWI/PR

Analog Devices, Inc.

DG507 MONOLITHIC ANALOG MUX

650

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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