Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
MAX4544EUT

MAX4544EUT

Analog Devices, Inc.

DUAL SPDT ANALOG SWITCH

23977

IH5140CJE

IH5140CJE

Analog Devices, Inc.

LOW POWER FAST ANALOG SWITCH

0

DG202CSE

DG202CSE

Analog Devices, Inc.

DG202 QUAD SPST ANALOG SWITCH

0

MAX314FEPE

MAX314FEPE

Analog Devices, Inc.

QUAD, R-R, SPST ANALOG SWITCH

77

IH5145CJE

IH5145CJE

Analog Devices, Inc.

LOW POWER FAST ANALOG SWITCH

472

ADG3245BRUZ

ADG3245BRUZ

Analog Devices, Inc.

IC BUS SWITCH 8 X 1:1 20TSSOP

536

AD7592DITE/883B

AD7592DITE/883B

Analog Devices, Inc.

DUAL SPST LATCH UP PROOF SWITCH

573

MAX4581CEE

MAX4581CEE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG MUX/SWITCH

16811

MAX4751EUD-T

MAX4751EUD-T

Analog Devices, Inc.

MAX4751 QUAD SPST ANALOG SWITCH

2500

MAX6504UKN015

MAX6504UKN015

Analog Devices, Inc.

MICROPOWER TEMPERATURE SWITCH

5972

MAX303EJE

MAX303EJE

Analog Devices, Inc.

DUAL, HIGH-SPEED ANALOG SWITCH

331

MAX4641EUA-T

MAX4641EUA-T

Analog Devices, Inc.

DUAL SPST ANALOG SWITCH

300

MAX6501UKP075

MAX6501UKP075

Analog Devices, Inc.

MICROPOWER TEMPERATURE SWITCH

2551

MAX4525LEUB-T

MAX4525LEUB-T

Analog Devices, Inc.

SINGLE-SUPPLY SWITCH

0

MAX463CNG

MAX463CNG

Analog Devices, Inc.

2-CH TRIPLE RGB SWITCH + BUFFER

240

MAX4624EZT-T

MAX4624EZT-T

Analog Devices, Inc.

SPDT ANALOG SWITCH

11800

MAX4026EUP

MAX4026EUP

Analog Devices, Inc.

QUAD, 2:1 VIDEO MUX-AMP

427

MAX440EPI

MAX440EPI

Analog Devices, Inc.

HIGH-SPEED VIDEO MUX/AMPLIFIER

0

MAX6511UT115-T

MAX6511UT115-T

Analog Devices, Inc.

REMOTE TEMPERATURE SWITCH

2500

MAX6512UT115-T

MAX6512UT115-T

Analog Devices, Inc.

REMOTE TEMPERATURE SWITCH

2500

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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