Logic - Signal Switches, Multiplexers, Decoders

Part Number	Description / PDF	Quantity
DG406AK Analog Devices, Inc.	16-CHANNEL ANALOG MUX	697
ADG801BRM-R2 Analog Devices, Inc.	SPST SWITCH	7716
MAX6506UTP115-T Analog Devices, Inc.	DUAL TRIP SOT TEMPERATURE SWITCH	2500
MAX459CPL Analog Devices, Inc.	8 X 4 VIDEO XPOINT SWITCH	1512
AD8153ACPZ Analog Devices, Inc.	IC MUX/DEMUX 1 X 2:1 32LFCSP	3
5962-8971002XA Analog Devices, Inc.	8 CHANNEL ANALOG MUX	67
ADG3245BCP Analog Devices, Inc.	IC FET BUS SW 8 X 1:1 20LFCSP	8487
MAX1605ETT-T Analog Devices, Inc.	30V LCD BIAS SUPPLY	6514
MAX6511UT125 Analog Devices, Inc.	REMOTE TEMPERATURE SWITCH	2214
MAX4677EUE Analog Devices, Inc.	2 OHM, QUAD, SPST ANALOG SWITCH	2351
MAX4789EUK-T Analog Devices, Inc.	200MA, CURRENT-LIMIT SWITCH	0
DG506AEWI/R30033 Analog Devices, Inc.	DG506 MONOLITHIC ANALOG MUX	240
MAX4730EXT Analog Devices, Inc.	MAX4730 SPDT, ANALOG SWITCH	3972
ADG412BRU Analog Devices, Inc.	PRECISION QUAD SPST SWITCH	13782
MAX362MJE Analog Devices, Inc.	QUAD, SPST ANALOG SWITCH	480
MAX4638EUE Analog Devices, Inc.	SINGLE 8:1 ANALOG MUX	69
MAX4698EBT Analog Devices, Inc.	MAX4698 SPST ANALOG SWITCH	0
MAX4764EUB Analog Devices, Inc.	AUDIO CLICKLESS SWITCH	400
MAX4695EGC-T Analog Devices, Inc.	SPDT ANALOG SWITCH IN THIN QFN	2498
MAX4522EUE Analog Devices, Inc.	QUAD SPST ANALOG SWITCH	7188

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.