Logic - Signal Switches, Multiplexers, Decoders

Part Number	Description / PDF	Quantity
MAX4781EGE Analog Devices, Inc.	MAX4781 HIGH-SPEED, ANALOG MUX	8658
ADG212AKP-REEL Analog Devices, Inc.	QUAD SPST SWITCH	1000
HMC854LC5 Analog Devices, Inc.	IC MULTIPLEXER 1 X 4:1 32CSMT	0
MAX397CAI-T Analog Devices, Inc.	DUAL 8-CHAN, LOW-V, ANALOG MUX	2000
5962-8771802EA Analog Devices, Inc.	ANALOG MUX DUAL 4:1 (MUX24BQ)	1721
MAX4529CUT Analog Devices, Inc.	BIDIRECTIONAL RF/VIDEO SWITCH	3477
DG202CSE-T Analog Devices, Inc.	DG202 QUAD SPST ANALOG SWITCH	950
MAX6501UKP115 Analog Devices, Inc.	MICROPOWER TEMPERATURE SWITCH	3657
MAX4687EBT-T Analog Devices, Inc.	SPST ANALOG SWITCH	5000
DG413FDY Analog Devices, Inc.	QUAD RAIL-RAIL, SPST ANLG SWITCH	729
MAX6502UKP085 Analog Devices, Inc.	MICROPOWER TEMPERATURE SWITCH	0
ADN4600ACPZ-R7 Analog Devices, Inc.	IC CROSSPOINT SW 1 X 8:8 64LFCSP	1070
MAX4742EKA-T Analog Devices, Inc.	MAX4741 DUAL SPST ANALOG SWITCH	5000
DG507ACWI Analog Devices, Inc.	DG507 MONOLITHIC ANALOG MUX	375
IH5341CPD+ Analog Devices, Inc.	IH5341 DUAL RF/VIDEO SWITCH	423
MAX6502UKP035 Analog Devices, Inc.	MICROPOWER TEMPERATURE SWITCH	933
MAX441EWP Analog Devices, Inc.	HIGH-SPEED VIDEO MUX/AMPLIFIER	216
MAX4052AMJE Analog Devices, Inc.	MAX4052 LOW-VOLTAGE ANALOG MUX	0
IH5341IJD Analog Devices, Inc.	IH5341 DUAL RF/VIDEO SWITCH	423
MAX5944ESE Analog Devices, Inc.	DUAL FIREWIRE CURRENT LIMITER	472

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

Type	Functional Features	Application Examples
Signal Switches	Digital/analog switches with on/off control	Audio routing, power management
Multiplexers (MUX)	2:1 to 16:1 channel selection, data bus sharing	Network switches, sensor data aggregation
Decoders	Binary-to-decimal, BCD-to-7-segment conversion	Memory 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

Parameter	Description	Importance
On-resistance (R_ON)	Resistance in conducting state	Impacts signal integrity
Bandwidth	Maximum signal frequency supported	Determines high-speed capability
Channel count	Number of independent paths	System scalability
Power consumption	Quiescent current and switching loss	Battery life consideration
Propagation delay	Signal transmission time	Critical 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

Manufacturer	Representative Product	Key Features
TI	SN74CB3Q3245	10- R_ON, 2.3V-3.6V supply
Analog Devices	ADG1412	4-channel switch, 165MHz bandwidth
NXP	74HC151	8:1 multiplexer, 70MHz operation
STMicroelectronics	CD4028BE	BCD-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.