LTC4306

PRODUCTION

4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering

Data Sheet Product Selection Table
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Part Details

  • 1:4 2-Wire Multiplexer/Switch
  • Connect SDA and SCL Lines with 2-Wire Bus Commands
  • Supply Independent Bidirectional Buffer for SDA and SCL Lines Increases Fan-Out
  • Programmable Disconnect from Stuck Bus
  • Compatible with I2C and SMBus Standards
  • Rise Time Accelerator Circuitry
  • SMBus Compatible ALERT Response Protocol
  • Two General Purpose Inputs-Outputs
  • Prevents SDA and SCL Corruption During Live Board
  • Insertion and Removal from Backplane
  • ±10kV Human Body Model ESD Ruggedness
  • 24-Lead QFN (4mm × 5mm) and SSOP Packages
LTC4306
4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering
A Level Shifting and Nested Addressing Application I 2C Bus Waveforms Product Package 1 Product Package 2
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 2

Technical Articles 2

Spec Notice 1

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Software Resources

Device Drivers 3

Hardware Ecosystem

Parts Product Life Cycle Description
Analog Switches & Multiplexers 1
LTC4314
PRODUCTION Pin-Selectable, 4-Channel, 2-Wire Multiplexer with Bus Buffers
Interface Transceivers & Isolators 1
LTM2883
PRODUCTION SPI/Digital or I2C μModule Isolator with Adjustable ±12.5V and 5V Regulated Power
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Tools & Simulations

LTpowerPlay®

LTpowerPlay® is a powerful, Windows-based development environment supporting Linear Technology's Digital Power System Management (PSM) products.

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IBIS Model 2

Evaluation Kits

eval board
schematic 1
DC906A

LTC4306 4-Channel I2C Mux

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Product Details

DC906A: Demo Board for the LTC4306 4-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering.

eval board
schematic 2
schematic 3
schematic 4
EVAL-LTC4306

LTC4306 Evaluation Board with PMOD Connectors on Both Upstream and Downstream

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Features and Benefits

  • Features LTC4306, a 4-channel, 2-wire I2C bus and SMBus compatible multiplexer having bus buffers that provide capacitive isolation between the upstream bus and downstream buses
  • 6-pin PMOD connectors for upstream and downstream connection for compatibility with PMOD form factors such as EVAL-ADICUP3029  (Arduino based Wireless Development Platform based on an ultra-low power ARM Cortex-M3 processor) or with EVAL-SDP-CK1Z  (SDP-K1 Cortex ARM core processors Controller Board and color sensor)

Product Details

The EVAL-LTC4306-PMDZ features LTC4306, a 4-channel, 2-wire I2C bus and SMBus compatible multiplexer having bus buffers that provide capacitive isolation between the upstream bus and downstream buses. This evaluation board provides 6-pin PMOD connectors for upstream and downstream connection for compatibility with PMOD form factors such as EVAL-ADICUP3029, an Arduino based Wireless Development Platform for Internet of Things applications based on an ultra-low power ARM Cortex-M3 processor.

Pmod™ is the Digilent defined standard of Peripheral Modules, small I/O interface boards that offer an ideal way to extend the capabilities of programmable logic and microcontroller boards. They allow sensitive signal conditioning circuits and high-power drive circuits to be placed where they are most effective — near sensors and actuators.

EVAL-LTC4306-PMDZ comes with PMOD connectors on both upstream and downstream side for compatibility with PMOD form factors, 10K pull up resistors on upstream and all downstream buses and 0.1uF bypass capacitor on the upstream side. The user has the option to add 6 pin 2.54mm pitch pin header for connection to the GPIOs (General Purpose Input/Output pins) on EVAL-LTC4306-PMDZ for extra functionality. The user also has the option to add test points on different places on the board for fault monitoring and place additional bypass capacitors (0805 size footprint) on the upstream and the downstream side for defense against any unwanted noise in their system for adequate bypassing on power supply lines.
DC906A
LTC4306 4-Channel I2C Mux
DC906A - Schematic
EVAL-LTC4306
LTC4306 Evaluation Board with PMOD Connectors on Both Upstream and Downstream
EVAL-LTC4306-PMDZ Evaluation Board EVAL-LTC4306-PMDZ Evaluation Board - Top View EVAL-LTC4306-PMDZ Evaluation Board - Bottom View

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