LTC2854HDD#PBF
Interface ICs
Technical Specifications
| Type | Description |
|---|---|
| Supply Voltage | 3.3 V |
| Data Rate | 20 Mbps |
| Quiescent Current | 370 µA |
| Nodes | 256 |
| ESD Protect | ±25kV |
| Communication Mode | Half-Duplex |
| Type | Description |
|---|---|
| Number of Drivers | 1 |
| Number of Receivers | 1 |
| Type | Transceiver |
| Operating Temperature | -40°C~+125°C |
| Features | Enable shutdown;Fail-safe;Overcurrent Protection;Internal termination resistor;Thermal shutdown protection |
| Package / Case | DFN-10-EP(3x3) |
Product Introduction
The LTC2854 and LTC2855 are low power, 20Mbps RS485/RS422 transceivers operating on 3.3V supplies. The receiver includes a logic-selectable 120Ω termination, one-eighth unit load supporting up to 256 nodes per bus (C-, I-Grade), and a failsafe feature that guarantees a high output state under conditions of floating or shorted inputs.
The driver 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 LTC2854 to withstand ±25kV (human body model) and the LTC2855 to withstand ±15kV on the transceiver interface pins without latchup or damage.
Features
- Integrated, Logic-Selectable 120Ω Termination Resistor
- 3.3V Supply Voltage
- 20Mbps Maximum Data Rate
- No Damage or Latchup Up to ±25kW HBM
- High Input Impedance Supports 256 Nodes (C-, I‑Grade)
- Operation Up to 125°C (H-Grade)
- Guaranteed Failsafe Receiver Operation Over the Entire Common Mode Range
- Current Limited Drivers and Thermal Shutdown
- Delayed Micropower Shutdown: 5µA Maximum (C-, I-Grade)
- Power Up/Down Glitch-Free Driver Outputs
- Low Operating Current: 370µA Typical in Receive Mode
- Compatible with 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 LTC2854HDD#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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