Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
MAX764ESA

MAX764ESA

Analog Devices, Inc.

MAX764 8-CHANNEL LATCHABLE MUX

1835

ADG3243BRJ-R2

ADG3243BRJ-R2

Analog Devices, Inc.

IC BUS SWITCH 1 X 1:1 SOT23-8

4304

MAX4738EBE-T

MAX4738EBE-T

Analog Devices, Inc.

MAX4738 QUAD SPST ANALOG SWITCH

7350

MAX1823AEUB

MAX1823AEUB

Analog Devices, Inc.

DUAL USB SWITCH WITH AUTORESET

0

DG529CJ

DG529CJ

Analog Devices, Inc.

ANALOG LATCHABLE MUX, 4-CHANNEL

0

MAX4582LEEE

MAX4582LEEE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG MUX/SWITCH

4104

MAX6512UT055

MAX6512UT055

Analog Devices, Inc.

REMOTE TEMPERATURE SWITCH

1713

MAX4581ASE

MAX4581ASE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG MUX/SWITCH

0

MAX389CJN

MAX389CJN

Analog Devices, Inc.

FAULT-PROTECTED ANALOG MUX

0

MAX4716EXK-T

MAX4716EXK-T

Analog Devices, Inc.

MAX4716 SPST ANALOG SWITCH

4642

MAX4586EUB

MAX4586EUB

Analog Devices, Inc.

SERIAL 4-CH AUDIO/VIDEO MUX

49892

MAX4686EBT-T

MAX4686EBT-T

Analog Devices, Inc.

SPST ANALOG SWITCH

5000

MAX4620EPD

MAX4620EPD

Analog Devices, Inc.

QUAD, SPST ANALOG SWITCH

546

MAX4503CUK

MAX4503CUK

Analog Devices, Inc.

DUAL-SUPPLY, SPST ANALOG SWITCH

1367

ADG3246BRUZ

ADG3246BRUZ

Analog Devices, Inc.

IC BUS SWITCH 10 X 1:1 24TSSOP

23062

MAX4753EGE

MAX4753EGE

Analog Devices, Inc.

MAX4753 QUAD SPST ANALOG SWITCH

0

MAX4582EGE

MAX4582EGE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG MUX/SWITCH

996

ADG3257BRQ-REEL7

ADG3257BRQ-REEL7

Analog Devices, Inc.

IC MUX/DEMUX 4 X 2:1 16QSOP

2523

MAX322EUA

MAX322EUA

Analog Devices, Inc.

DUAL-SUPPLY, SPST ANALOG SWITCH

2939

5962-9073101MXC

5962-9073101MXC

Analog Devices, Inc.

DG411 QUAD SPST ANALOG SWITCH

73

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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