IC COMM INTERFACE ISOSPI 16-QFN
| Part Number | LTC6820HUD |
| Date Code | 2340 |
| Quantity Available | 12995 pcs |
| Manufacturer | Linear Technology/Analog Devices |
| Lead Time | Ship within 24 hours |
| QTY | 1500 |
| Datasheet | LTC6820.pdf |
| Minimum Quantity | More than 50pcs |
| Distributor | SingSun |
| RoHS Status | Lead free / RoHS Compliant |
| Ship From | Hong Kong |
| Shipment Way | EMS/SF/DHL/TNT/UPS/FedEx |
| Base Product Number | LTC6820 |
| Packaging | Reel |
| Country of Assembly | THAILAND |
| Country of Diffusion | TAIWAN,CHINA |
| Lot Number | UO53280.31 |
| MSL | 1 |
| Applications | Isolated Communications Interface |
| Interface | SPI |
| Voltage - Supply | 2.7 V ~ 5.5 V |
| Package / Case | 16-WFQFN Exposed Pad |
| Supplier Device Package | 16-QFN (3x3) |
| Mounting Type | Surface Mount |
The LTC6820HUD provides bidirectional SPI communications between two isolated devices through a single twisted-pair connection. Each LTC6820 encodes logic states into signals that are transmitted across an isolation barrier to another LTC6820. The receiving LTC6820 decodes the transmission and drives the slave bus to the appropriate logic states. The isolation barrier can be bridged by a simple pulse transformer to achieve hundreds of volts of isolation.
The LTC6820HUD drives differential signals using matched source and sink currents, eliminating the requirement for a transformer center tap and reducing EMI. Precision window comparators in the receiver detect the differential signals. The drive currents and the comparator thresholds are set by a simple external resistor divider, allowing the system to be optimized for required cable lengths and desired signal-to-noise performance.
