Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
MAX4517EUK

MAX4517EUK

Analog Devices, Inc.

DUAL-SUPPLY SPST ANALOG SWITCH

2133

MAX4628EUT

MAX4628EUT

Analog Devices, Inc.

SINGLE-SUPPLY SPST ANALOG SWITCH

1167

MAX6501UKP125

MAX6501UKP125

Analog Devices, Inc.

MICROPOWER TEMPERATURE SWITCH

2572

MAX312LEPE

MAX312LEPE

Analog Devices, Inc.

QUAD, R-R, SPST ANALOG SWITCH

773

MAX6508UT0A32-T

MAX6508UT0A32-T

Analog Devices, Inc.

DUAL TRIP SOT TEMPERATURE SWITCH

20000

MAX398CEE

MAX398CEE

Analog Devices, Inc.

8-CH LOW-VOLTAGE ANALOG MUX

775

ADG3257BRQZ-REEL

ADG3257BRQZ-REEL

Analog Devices, Inc.

IC MUX/DEMUX 4 X 2:1 16QSOP

9336

ADG3246BCPZ-REEL7

ADG3246BCPZ-REEL7

Analog Devices, Inc.

IC BUS SWITCH 10 X 1:1 24LFCSP

0

MAX4749EUD

MAX4749EUD

Analog Devices, Inc.

MAX4749 QUAD SPST ANALOG SWITCH

1071

MAX4583CPE

MAX4583CPE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG SWITCH

624

MAX4550CWI

MAX4550CWI

Analog Devices, Inc.

DUAL 4X2 AUDIO/VIDEO XPOINT S/W

513

MAX6502UKP045

MAX6502UKP045

Analog Devices, Inc.

MICROPOWER TEMPERATURE SWITCH

4975

MAX4723EBL

MAX4723EBL

Analog Devices, Inc.

4.5 OHMS DUAL SPST ANALOG SWITCH

2157

MAX4762EBC

MAX4762EBC

Analog Devices, Inc.

AUDIO CLICKLESS SWITCH

0

MAX4572CWI

MAX4572CWI

Analog Devices, Inc.

CLICKLESS AUDIO/VIDEO SWITCH

79

MAX4511CSE

MAX4511CSE

Analog Devices, Inc.

QUAD, R-R SPST ANALOG SWITCH

36

AD8159ASVZ

AD8159ASVZ

Analog Devices, Inc.

IC MUX/DEMUX 4 X 2:1 100TQFP

51

MAX391ESE-T

MAX391ESE-T

Analog Devices, Inc.

QUAD, SPST ANALOG SWITCH

4000

MAX6503UKP015

MAX6503UKP015

Analog Devices, Inc.

MICROPOWER TEMPERATURE SWITCH

2339

MAX459CQH+D

MAX459CQH+D

Analog Devices, Inc.

8 X 4 VIDEO XPOINT SWITCH

22493

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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