WB4851 AI Analysis:
Datasheet, Specs, Alternatives & ECAD

AI summary

WB4851 product

WB4851

Analog Switches

8:1 analog muxCMOS switch2.5 V to 5.5 VTSSOP-16break-before-make

WB4851 is a 2.5 V to 5.5 V, 8:1 CMOS analog switch for routing one of eight 0 V to VCC analog signals through a common bidirectional terminal.

Best for

  • Low-voltage analog signal selection
  • Sensor channel multiplexing
  • ADC or DAC routing
  • Microcontroller keypad polling

Avoid if

  • Signals outside the 0 V to VCC range
  • Applications requiring very low switch resistance at 3 V
  • Designs needing confirmed compliance or lifecycle documentation

Check before use

  • Confirm channel address mapping for A, B, and C
  • Account for on-resistance and resistance flatness over the signal range
  • Verify package footprint and any exposed-pad requirement
  • Tie unused digital control inputs to VCC or GND

Key specifications

Function
8-channel analog multiplexer/demultiplexer
Supply range
2.5 V to 5.5 V
On-resistance
22 Ω typical at 4.5 V
Bandwidth
390 MHz typical at 5 V
Package
TSSOP-16

Compliance & Environment

RoHS
-
REACH
-
MSL
-
ECCN
-
HTSUS
-

Application

Sensor multiplexingIndustrial signal routingConsumer keypad polling

CAD Models

Download ECAD models for WB4851: KiCad symbol & footprint, Altium footprint, PCB footprint, and 3D model.

EDA Symbol
Schematic symbol for your EDA tool
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PCB Footprint
Land pattern for PCB layout
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3D Model
STEP file for mechanical design
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KiCad Library
Verified KiCad 8 symbol, footprint, and 3D model
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Alternative components

Alternatives are being enriched. Analyze this part in PartGenie for the latest matches.

Design and risk insights

Questions & answers

WB4851 is a CMOS single 8-channel analog multiplexer/demultiplexer. Binary control inputs A, B, and C select one X0 to X7 channel, connecting it to the common X terminal when active-low /EN is low.