LTC2858
PRODUCTION20Mbps and Slew Rate Limited 15kV RS485/RS422 Transceiver
- Part Models
- 24
- 1ku List Price
- Starting From $1.89
Overview
- 20Mbps or Low EMI 250kbps Maximum Data Rate
- No Damage or Latch-up to ESD: ±15kV HBM
- High Input Impedance Supports 256 Nodes (C, I-Grade)
- Operation Up to 125°C (H-Grade)
- Guaranteed Fail-safe 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: 900µA Maximum in Receive Mode
- Compatible with TIA/EIA-485-A Specifications
- Available in 8-Lead and 10-Lead 3mm × 3mm DFN and 8-Lead and 10-Lead MSOP Packages
The LTC2856-1, LTC2856-2, LTC2857-1, LTC2857-2, LTC2858-1 and LTC2858-2 are low power, RS485/RS422 transceivers operating on 5V supplies at maximum data rates of 20Mbps or 250kbps for low EMI. The receiver has a one-eighth unit load, supporting up to 256 nodes per bus (C, I-Grade), and a fail-safe 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 thermal shutdown.
Enhanced ESD protection allows these parts to withstand ±15kV (human body model) on the transceiver interface pins without latch-up or damage.
| Part Number | MAX Data Rate (Mbps) | Duplex | Package |
| LTC2856-1 | 20 | Half | MSOP-8, DFN-8 |
| LTC2856-2 | 0.25 | Half | MSOP-8, DFN-8 |
| LTC2857-1 | 20 | Full | MSOP-8, DFN-8 |
| LTC2857-2 | 0.25 | Full | MSOP-8, DFN-8 |
| LTC2858-1 | 20 | Full | MSOP-10, DFN-10 |
| LTC2858-2 | 0.25 | Full | MSOP-10, DFN-10 |
Applications
- Low Power RS485/RS422 Transceiver
- Level Translator
- Backplane Transceiver
Documentation
Data Sheet 1
Reliability Data 1
Technical Articles 1
Video 1
Product Selector Card 2
Press Release 1
Webcast 1
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTC2858CDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858CDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858CDD-2#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858CDD-2#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858CMS-1#PBF | 10-Lead MSOP | ||
| LTC2858CMS-1#TRPBF | 10-Lead MSOP | ||
| LTC2858CMS-2#PBF | 10-Lead MSOP | ||
| LTC2858CMS-2#TRPBF | 10-Lead MSOP | ||
| LTC2858HDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858HDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858HDD-2#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858HDD-2#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858HMS-1#PBF | 10-Lead MSOP | ||
| LTC2858HMS-1#TRPBF | 10-Lead MSOP | ||
| LTC2858HMS-2#PBF | 10-Lead MSOP | ||
| LTC2858HMS-2#TRPBF | 10-Lead MSOP | ||
| LTC2858IDD-1#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858IDD-1#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858IDD-2#PBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858IDD-2#TRPBF | 10-Lead DFN (3mm x 3mm w/ EP) | ||
| LTC2858IMS-1#PBF | 10-Lead MSOP | ||
| LTC2858IMS-1#TRPBF | 10-Lead MSOP | ||
| LTC2858IMS-2#PBF | 10-Lead MSOP | ||
| LTC2858IMS-2#TRPBF | 10-Lead MSOP |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Jun 5, 2024 - 24_0004 Epoxy Change from Henkel 8290 to 8290A for MSOP (3) |
||
| LTC2858CMS-1#PBF | PRODUCTION | |
| LTC2858CMS-1#TRPBF | PRODUCTION | |
| LTC2858HMS-1#PBF | PRODUCTION | |
| LTC2858HMS-1#TRPBF | PRODUCTION | |
| LTC2858IMS-1#PBF | PRODUCTION | |
| LTC2858IMS-1#TRPBF | PRODUCTION | |
|
Feb 4, 2020 - 20_0130 Laser Top Mark Conversion for 10-Lead MSOP Packages Assembled in ADPG and UTAC |
||
| LTC2858CMS-1#PBF | PRODUCTION | |
| LTC2858CMS-1#TRPBF | PRODUCTION | |
| LTC2858CMS-2#PBF | PRODUCTION | |
| LTC2858CMS-2#TRPBF | PRODUCTION | |
| LTC2858HMS-1#PBF | PRODUCTION | |
| LTC2858HMS-1#TRPBF | PRODUCTION | |
| LTC2858HMS-2#PBF | PRODUCTION | |
| LTC2858HMS-2#TRPBF | PRODUCTION | |
| LTC2858IMS-1#PBF | PRODUCTION | |
| LTC2858IMS-1#TRPBF | PRODUCTION | |
| LTC2858IMS-2#PBF | PRODUCTION | |
| LTC2858IMS-2#TRPBF | PRODUCTION | |
|
Oct 11, 2022 - 22_0244 Epoxy Change from Henkel 8290 to 8290A for MSOP Package |
||
| LTC2858CMS-2#PBF | PRODUCTION | |
| LTC2858CMS-2#TRPBF | PRODUCTION | |
| LTC2858HMS-2#PBF | PRODUCTION | |
| LTC2858HMS-2#TRPBF | PRODUCTION | |
| LTC2858IMS-2#PBF | PRODUCTION | |
| LTC2858IMS-2#TRPBF | PRODUCTION | |
|
Jul 12, 2022 - 22_0157 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages [With Modification in BOM] |
||
| LTC2858IMS-2#PBF | PRODUCTION | |
| LTC2858IMS-2#TRPBF | PRODUCTION | |
|
Jun 21, 2022 - 22_0050 UTAC Thai Limited (UTL) as Alternate Assembly Site for MSOP Packages / Devices |
||
| LTC2858IMS-2#PBF | PRODUCTION | |
| LTC2858IMS-2#TRPBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Interface Transceivers 1 | ||
| LTM2881 | PRODUCTION | Complete Isolated RS485/RS422 μModule Transceiver + Power |