LTC4305
PRODUCTION2-Channel, 2-Wire Bus Multiplexer with Capacitance Buffering
- Part Models
- 8
- 1ku List Price
- Starting From $3.37
Overview
- 1:2 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
- Prevents SDA and SCL Corruption During Live Board
Insertion and Removal from Backplane - ±10kV Human Body Model ESD Ruggedness
- 16-Lead (4mm × 5mm) DFN and SSOP Packages
The LTC4305 is a 2-channel, 2-wire bus multiplexer with bus buffers to provide capacitive isolation between the upstream bus and downstream buses. Through software control, the LTC4305 connects the upstream 2-wire bus to any desired combination of downstream channels. Each channel can be pulled up to a supply voltage ranging from 2.2V to 5.5V, independent of the LTC4305 supply voltage. The downstream channels are also provided with an ALERT1-ALERT2 inputs for fault reporting.
Programmable timeout circuitry disconnects the downstream buses if the bus is stuck low. When activated, rise time accelerators source currents into the 2-wire bus pins to reduce rise time. Driving the ENABLE pin low restores all features to their default states. Three address pins provide 27 distinct addresses.
The LTC4305 is available in 16-lead (4mm × 5mm) DFN and SSOP packages.
Applications
- Nested Addressing
- 5V/3.3V Level Translator
- Capacitance Buffer/Bus Extender
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
Spec Notice 1
Video 1
Device Drivers 1
Product Selector Card 2
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC4305CDHD#PBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC4305CDHD#TRPBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC4305CGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4305CGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4305IDHD#PBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC4305IDHD#TRPBF | 16-Lead DFN (5mm x 4mm w/ EP) | ||
| LTC4305IGN#PBF | 16-Lead SSOP (Narrow 0.15 Inch) | ||
| LTC4305IGN#TRPBF | 16-Lead SSOP (Narrow 0.15 Inch) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 3, 2024 - 24_0235 (QSOP/SSOP PKG) Migrating Bottom Trace Code Marking to Top Side Laser Marking |
||
| LTC4305CGN#PBF | PRODUCTION | |
| LTC4305CGN#TRPBF | PRODUCTION | |
| LTC4305IGN#PBF | PRODUCTION | |
| LTC4305IGN#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0235 Epoxy Change from Henkel 8290 to 8290A for GN Package |
||
| LTC4305CGN#PBF | PRODUCTION | |
| LTC4305CGN#TRPBF | PRODUCTION | |
| LTC4305IGN#PBF | PRODUCTION | |
| LTC4305IGN#TRPBF | PRODUCTION | |
|
Apr 6, 2022 - 22_0066 Laser Top Mark for 16QSOP Assembled in ADPG [PNG] |
||
| LTC4305CGN#PBF | PRODUCTION | |
| LTC4305CGN#TRPBF | PRODUCTION | |
| LTC4305IGN#PBF | PRODUCTION | |
| LTC4305IGN#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Device Drivers 1
Evaluation Software 0
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Hardware Ecosystem
Tools & Simulations
IBIS Model 2
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