IC manufacturers Analog Devices

IC manufacturers (103)

Analog Devices LTC4331 | Demoboard DC2754A

LTC4331 I2C Device Extender Over Rugged Differential Link

Overview

TopologyOther Topology
Input voltage2.6-5.5 V

Description

Demonstration circuit 2754A extends an I2C based QuikEval™ interface to up to 450 feet and features the LTC®4331. In order to realize the QuikEval interface, this demo circuit includes two complete I2C extenders and a remote side power supply formed from an LT®3461 boost converter and two LT1761 LDOs. The LTC4331 is a SMBus compatible I2C slave device extender designed for operation in high noise indus¬trial environments. The I2C/SMBus is extended over a single twisted pair by a ±60V fault protected differen¬tial transceiver. The LTC4331’s extended 15V common mode voltage range allows it to bridge across different ground potentials. When used as a QuikEval extender, the DC2754A requires the use of the DC2026 USB serial adapter. The DC2754A is NOT compatible with the DC590 USB serial adapter because the DC590 does not support clock stretching. The DC2754A’s jumpers and turrets allow easy re-config¬uration for use in other applications and/or demonstrat¬ing other application circuits. The circuit board is fabri¬cated with a score between the local and remote sides to allow physical separation. The link cable connections are made using either pluggable terminal blocks or an Ethernet cable. Two complete I2C extenders are present. The first extender has a full set of diagnostic LEDs, jumpers, turrets and large (0805) resistors for simple user reconfiguration and connection for customer specific application(s). The sec¬ond extender is configured specifically for the QuikEval EEPROM with no LEDs; however, it may be reconfigured and used for customer specific application(s) via 0603 jumpers and resistors and unpopulated test points on 0.1" centers. The LTC4331 data sheet gives a complete description of the part, its operation and application information. The data sheet should be referred to when reading this demo manual. The LTC4331 is available in a 20-lead QFN pack¬age and three temperature grades (commercial 0°C to 70°C, industrial –40°C to 85°C, and high temperature –40°C to 125°C).

Features

  • Up to 1MHz Serial Clock, Fast-mode Plus (Fm+)
  • Selectable Link Baud Rates Extend I2C Up to 1200m
  • Protected from Overvoltage Line Faults to ±60V
  • ±40kV ESD on Link Pins
  • IEC Level 4 ESD ±8kV and EFT ±5kV on Link Pins
  • Extended Common Mode Range: ±15V
  • Remote Interrupt/SMBALERT and Control Signals
  • Low EMI Mode
  • SMBus 3.0 Compatible
  • I2C Idle Detection, and Stuck Bus Protection
  • I2C Device Address Sharing
  • 3V to 5.5V Supply Voltage
  • 1.62V to 5.5V Logic Supply
  • 4mm × 5mm 20-Lead QFN package

Typical applications

  • Lighting and Sound System Control
  • Industrial Control and Sensors

Products

Order Code
Data­sheet
Simu­lation
Downloads
Status
Product series
f(mm)
λDom typ.(nm)
Emitting Color
λPeak typ.(nm)
IV typ.(mcd)
VF typ.(V)
Chip Technology
50% typ.(°)
xPxC
Ports
Shielding
EMI
Application System
Operation Force(g)
Schematic
Packaging
Z @ 100 MHz(Ω)
Zmax(Ω)
Test Condition Zmax
IR 2(mA)
RDC max.(Ω)
Type
Pins
Mount
L(mm)
H(mm)
IR(mA)
Working Voltage(V (AC))
Operating Temperature
PCB/Cable/Panel
Modularity
Wire Section
Samples
WE-CBF SMT EMI Suppression Ferrite Bead, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Impedance @ 100 MHz1500 Ω
Maximum Impedance1800 Ω
Maximum Impedance70 MHz 
Rated Current 21000 mA
DC Resistance0.3 Ω
TypeHigh Current 
MountSMT 
Length2 mm
Height0.9 mm
Rated Current700 mA
Operating Temperature -55 °C up to +125 °C
WL-SMCW SMT Mono-color Chip LED Waterclear, –, 525 nm
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Dominant Wavelength [typ.]525 nm
Emitting ColorGreen 
Peak Wavelength [typ.]515 nm
Luminous Intensity [typ.]450 mcd
Forward Voltage [typ.]3.2 V
Chip TechnologyInGaN 
Viewing Angle Phi 0° [typ.]140 °
PackagingTape and Reel 
MountSMT 
Length2 mm
Height0.7 mm
Operating Temperature -40 °C up to +85 °C
WR-MJ Cat 3 Modular Jacks – THT, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Number of Pins (xPxC)8P8C 
Ports1x1 
ShieldingShielded 
EMI FingersNo 
Application SystemCAT 3 
PackagingTray 
TypeVertical 
MountTHT 
Rated Current1500 mA
Working Voltage120 V (AC)
Operating Temperature -40 °C up to +85 °C
WR-TBL Series 3211 - 3.50 mm Vertical PCB Header, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
PackagingBox 
TypePCB Header 
Pins
MountTHT 
Length15.4 mm
Rated Current10500 mA
Working Voltage300 V (AC)
Operating Temperature -40 °C up to +105 °C
PCB/Cable/PanelCable 
ModularityNo 
WR-TBL Series 3611 - 3.50 mm Vertical, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
PackagingBox 
TypeVertical 
Pins
MountCable 
Length14 mm
Rated Current10500 mA
Working Voltage300 V (AC)
Operating Temperature -40 °C up to +105 °C
PCB/Cable/PanelCable 
ModularityNo 
Wire Section 26 to 16 (AWG) 0.129 to 1.31 (mm²)
WS-SLTV THT Mini Slide Switch, Opposite Side Connection 10x2.5 mm, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Operation Force800 g
SchematicSPDT 
PackagingBulk 
Rated Current500 mA
Operating Temperature -40 °C up to +85 °C
WA-SNSR Self-Retaining Spacer, 4.8 mm, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Drilling in Panel4.8 mm
Length6.4 mm
Operating Temperature -30 °C up to +85 °C
WR-PHD Jumper, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Jumper
PackagingBag 
Pins
Rated Current3000 mA
Working Voltage200 V (AC)
Operating Temperature -25 °C up to +105 °C
WR-PHD Pin Header - Dual, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
PackagingBag 
TypeStraight 
Pins16 
MountTHT 
Length20.32 mm
Rated Current3000 mA
Working Voltage250 V (AC)
Operating Temperature -40 °C up to +105 °C
WR-PHD Pin Header, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
PackagingBag 
TypeStraight 
Pins
MountTHT 
Length6 mm
Rated Current2000 mA
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
WR-PHD Pin Header, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
PackagingBag 
TypeStraight 
Pins
MountTHT 
Length8 mm
Rated Current2000 mA
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C
WR-PHD Pin Header, –, –
Simu­lation
Status Activei| Production is active. Expected lifetime: >10 years.
Product seriesWR-PHD Pin Header
PackagingBag 
TypeStraight 
Pins
MountTHT 
Length8 mm
Rated Current2000 mA
Working Voltage200 V (AC)
Operating Temperature -40 °C up to +105 °C