Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
MAX383CPE

MAX383CPE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG SWITCH

0

DG413CY

DG413CY

Analog Devices, Inc.

QUAD RAIL-RAIL, SPST ANLG SWITCH

5218

MAX325EPA

MAX325EPA

Analog Devices, Inc.

DUAL-SUPPLY, SPST ANALOG SWITCH

0

MAX4583EGE

MAX4583EGE

Analog Devices, Inc.

LOW-VOLTAGE ANALOG SWITCH

10516

MAX4515EUK

MAX4515EUK

Analog Devices, Inc.

LOW-VOLTAGE SPST ANALOG SWITCH

20205

MAX337EPI

MAX337EPI

Analog Devices, Inc.

DUAL 8-CH LOW-LEAKAGE ANALOG MUX

20

MAX4699EGE

MAX4699EGE

Analog Devices, Inc.

MAX4699 DUAL DPDT ANALOG SWITCH

1986

MAX4575ESA

MAX4575ESA

Analog Devices, Inc.

DUAL, SPST ANALOG SWITCH

237

MUX24FPZ

MUX24FPZ

Analog Devices, Inc.

DUAL 4-CHAN JFET ANALOG MULTIPLE

981

MAX1605EUT#TG14

MAX1605EUT#TG14

Analog Devices, Inc.

30V INTERNAL SWITCH LCD BIAS SUP

67500

ADG201HSJP-REEL

ADG201HSJP-REEL

Analog Devices, Inc.

QUAD SPST SWITCH

3000

ADG3243BRJ-REEL7

ADG3243BRJ-REEL7

Analog Devices, Inc.

IC BUS SWITCH 1 X 1:1 SOT23-8

123348

MAX6505UTP115-T

MAX6505UTP115-T

Analog Devices, Inc.

DUAL TRIP SOT TEMPERATURE SWITCH

5000

MAX309ESE

MAX309ESE

Analog Devices, Inc.

DUAL 8-CHANNEL, ANALOG MUX

920

MAX6512UT115

MAX6512UT115

Analog Devices, Inc.

REMOTE TEMPERATURE SWITCH

667

ADG3241BRYZ-REEL7

ADG3241BRYZ-REEL7

Analog Devices, Inc.

2-PORT, TRANSLATOR BUS SWITCH

129156

MAX4704EUB

MAX4704EUB

Analog Devices, Inc.

MAX4704 4 TO 1 ANALOG MUX

108

DG412FDJ

DG412FDJ

Analog Devices, Inc.

QUAD RAIL-RAIL, SPST ANLG SWITCH

229

HMC854LC5TR-R5

HMC854LC5TR-R5

Analog Devices, Inc.

IC MULTIPLEXER 1 X 4:1 32CSMT

0

MAX313FEPE

MAX313FEPE

Analog Devices, Inc.

QUAD, R-R, SPST ANALOG SWITCH

295

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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