Chipanalog CA-IF4820FD Interface IC

Chipanalog CA-IF4820FD

The CA-IF48xx family of devices are low-power transceivers for RS-485/RS-422 communications in harsh environments. All devices have ±30V fault protection for overvoltage conditions on the bus lines that ensure robust protection for the communication interface. They also feature ±15V wide common-mode range (CMR), this feature was specifically designed for systems where there is a large common-mode voltage present due to either nearby electrically noisy equipment or large ground differences due to different earth grounds or long distance transmission. The bus pins of these devices are protected against ±15kV (for the full-duplex transceivers) and ±30kV (for the half-duplex transceivers) electro-static discharge (ESD) shocks, eliminating the need for additional system level protection components.

Features

• High-Performance and Compliant with RS-485 EIA/TIA-485 Standard
• Low EMI 500kbps Data Rate (CA-IF4805) and up to 50Mbps (CA-IF4850), 20Mbps (CA-IF4820) High-Speed Data Rates
• 1/8 Unit Load Enables up to 256 Nodes on the Same Bus
• Integrated Protection for Robust Communication
• ±30V Fault Protection Range on Driver Outputs/Receiver Inputs
• ±15V Common-Mode Voltage Range
• ±15kV Human Body Model ESD Protection for the Full-duplex Devices (CA-IF48xxFS/FM/FD)
• ±30kV Human Body Model ESD Protection for the Half-duplex Devices (CA-IF48xxHS/HM/HD)
• Short-Circuit Protection
• Thermal Shutdown
• True Fail-Safe Guarantees Known Receiver Output State
• Low Power
• 960µA (max.) @ Receive Mode
• Shutdown Current
• 3V to 5.5V Supply Voltage Range
• Wide Operating Temperature Range
• –40°C to 125°C
• 8 pin SOIC
• 8 pin MSOP and 8 pin DFN Packages

Applications

• Motor Drive
• Factory Automation & Control
• Grid Infrastructure
• Home and Building Automation
• Video Surveillance
• Process Control
• Telecommunication Equipment

Device Information

Download Datasheet (PDF)