Logic - Signal Switches, Multiplexers, Decoders

Image Part Number Description / PDF Quantity Rfq
AD8150ASTZ

AD8150ASTZ

Analog Devices, Inc.

IC CROSSPOINT SW 1X33:17 184LQFP

1834

MAX4766AETA+

MAX4766AETA+

Analog Devices, Inc.

PROG CURRENT-LIMIT SWITCH

840

MAX4520EUT

MAX4520EUT

Analog Devices, Inc.

R-R SPST ANALOG SWITCH

175

MAX5943AEEE

MAX5943AEEE

Analog Devices, Inc.

MAX5943 FIREWIRE CURRENT LIMITER

3541

DG411CUE

DG411CUE

Analog Devices, Inc.

QUAD RAIL-RAIL, SPST ANLG SWITCH

0

MAX4674EUE

MAX4674EUE

Analog Devices, Inc.

WIDEBAND QUAD 2:1 ANALOG MUX

533

DG442ETE

DG442ETE

Analog Devices, Inc.

QUAD, SPST ANALOG SWITCH

303

MAX4662CWE

MAX4662CWE

Analog Devices, Inc.

2.5 OHM QUAD, SPST ANALOG SWITCH

0

MAX4758ETX

MAX4758ETX

Analog Devices, Inc.

QUAD DPDT AUDIO/DATA SWITCH

0

MAX329EPE

MAX329EPE

Analog Devices, Inc.

LOW LEAKAGE ANALOG MUX

525

MAX4909ETD+T

MAX4909ETD+T

Analog Devices, Inc.

SINGLE-ENDED MULTIPLEXER, 2 FUNC

5000

MAX317CJA

MAX317CJA

Analog Devices, Inc.

MAX317 PRECISION ANALOG SWITCH

186

MAX6512UT045-T

MAX6512UT045-T

Analog Devices, Inc.

REMOTE TEMPERATURE SWITCH

2500

ADN4612ACPZ

ADN4612ACPZ

Analog Devices, Inc.

IC CROSSPOINT SW 1X12:12 88LFCSP

239

AD8153ACPZ-RL7

AD8153ACPZ-RL7

Analog Devices, Inc.

IC MUX/DEMUX 1 X 2:1 32LFCSP

0

MAX459CQH

MAX459CQH

Analog Devices, Inc.

8 X 4 VIDEO XPOINT SWITCH

35

DG406DN-T

DG406DN-T

Analog Devices, Inc.

16-CHANNEL ANALOG MUX

476

ADG3245BCP-REEL7

ADG3245BCP-REEL7

Analog Devices, Inc.

IC FET BUS SW 8 X 1:1 20LFCSP

10989

MAX463CWG

MAX463CWG

Analog Devices, Inc.

2-CH TRIPLE RGB SWITCH + BUFFER

1646

MAX440CPI

MAX440CPI

Analog Devices, Inc.

HIGH-SPEED VIDEO MUX/AMPLIFIER

0

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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