LTC1694-1

PRODUCTION

LTC1694-1

SMBus/I²C Accelerator*

PRODUCTION

Part Details

Comparison of SMBus Waveforms for the LTC1694-1 vs Resistor Pull-Up slide

Comparison of SMBus Waveforms for the LTC1694-1 vs Resistor Pull-Up

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Part Models 4

1ku List Price Starting From $1.91

Features

Improves SMBus/I²C^™ Rise Time Transition
Ensures Data Integrity with Multiple Devices on the SMBus/I²C
Improves Low State Noise Margin
Wide Supply Voltage Range: 2.7V to 6V
Parallel Multiple LTC1694-1 Devices for Increased Drive
Low Profile (1mm) SOT-23 (ThinSOT^™) Package

Additional Details

The LTC1694-1 is a dual SMBus active pull-up designed to enhance data transmission speed and reliability under all specified SMBus loading conditions. The LTC1694-1 is also compatible with the Philips I²C Bus.

The LTC1694-1 allows multiple device connections or a longer, more capacitive interconnect, without compromising slew rates or bus performance, by supplying a high pull-up current of 2.2mA to slew the SMBus or I²C lines during positive bus transitions.

During negative transitions or steady DC levels, the LTC1694-1 sources zero current. External resistors, one on each bus line, trigger the LTC1694-1 during positive bus transitions and set the pull-down current level. These resistors determine the slew rate during negative bus transitions and the logic low DC level.

The LTC1694-1 is available in a 5-pin SOT-23 package.

Applications

Notebook and Palmtop Computers
Portable Instruments
Battery Chargers
Industrial Control Application
TV/Video Products
ACPI SMBus Interface

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Support

Analog Devices Support Portal is a one-stop shop to answer all your ADI questions.

Visit the ADI Support Page

Ask the ADI community for help.

Ask the EngineerZone Community

FAQs

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Part Models 4

1ku List Price Starting From $1.91

Documentation

Technical Documents 2

LTC1694-1: SMBus/I²C Accelerator Data Sheet 08/30/2007

R345 Reliability Data 03/22/2018

Reference Materials 1

Serial Bus Buffers, Extenders, and Accelerators 07/13/2017

Design Resources 4

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
LTC1694-1CS5#TRMPBF	5-Lead TSOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC1694-1CS5#TRPBF	5-Lead TSOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC1694-1IS5#TRMPBF	5-Lead TSOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys
LTC1694-1IS5#TRPBF	5-Lead TSOT-23	HTML Material Declaration HTML Reliablity Data	Ultra Librarian SamacSys