LTC2859IDD#PBF
Interface ICs
Technical Specifications
| Type | Description |
|---|---|
| Data Rate | 20 Mbps |
| Quiescent Current | 900 µA |
| Nodes | 256 |
| ESD Protect | ±15kV |
| Communication Mode | Half-Duplex |
| Number of Drivers | 1 |
| Type | Description |
|---|---|
| Number of Receivers | 1 |
| Supply Voltage | 4.5V~5.5V |
| Type | Transceiver |
| Operating Temperature | -40°C~+85°C |
| Features | Fail-safe;Overcurrent Protection;Thermal shutdown protection;Internal termination resistor;Enable shutdown;Low-power mode |
| Package / Case | DFN-10-EP(3x3) |
Product Introduction
The LTC2859 and LTC2861 are low power, 20Mbps RS485/422 transceivers operating on 5V supplies. The receiver includes a logic-selectable 120Ω termination, one-eighth unit load supporting up to 256 nodes per bus (C-, I-grades), and a failsafe feature that guarantees a high output state under conditions of floating or shorted inputs.
The driver features a logic-selectable low-EMI 250kbps operating mode, and maintains a high output impedance over the entire common mode range when disabled or when the supply is removed. Excessive power dissipation caused by bus contention or a fault is prevented by current limiting all outputs and by a thermal shutdown.
Enhanced ESD protection allows the LTC2859 and LTC2861 to withstand ±15KV (human body model) on the transceiver interface pins without latchup or damage.
Features
- Integrated, Logic-Selectable 120Ω Termination Resistor
- 20Mbps Max Data Rate
- No Damage or Latchup to ESD: ±15kV HBM
- High Input Impedance Supports 256 Nodes (C-, I-Grades)
- Operation Up to 105°C (LTC2859H)
- 250kbps Low-EMI Mode
- Guaranteed Failsafe Receiver Operation Over the Entire Common Mode Range
- Current Limited Drivers and Thermal Shutdown
- Delayed Micropower Shutdown (5µA Max)
- Power Up/Down Glitch-Free Driver Outputs
- Low Operating Current (900µA Max in Receive Mode)
- Meets All TIA/EIA-485-A Specifications
- Available in 10-Pin 3mm × 3mm DFN, 12-Pin 4mm×3mm DFN and 16-Pin SSOP Packages
Applications
- Low Power RS485/RS422 Transceiver
- Level Translator
- Backplane Transceiver
Datasheet
Alternative Parts
Common LTC2859IDD#PBF alternatives overseas buyers search for:
Compliance & Export Codes
| Type | Details |
|---|---|
| RoHS | ROHS3 |
| ECCN | EAR99 |
| CNHTS | 8542399000 |
| USHTS | 8542390001 |
| TARIC | 8542399000 |
| Type | Details |
|---|---|
| CAHTS | 8542390000 |
| BRHTS | 85423999 |
| INHTS | 85423900 |
| MXHTS | 8542.39.99 |
Sourcing Information
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