LTC2852 - 3.3V 20Mbps RS485/RS422 Transceiver
Features
- 3.3V Supply Voltage
- 20Mbps Maximum Data Rate
- No Damage or Latchup Up to ±15kV 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 8-Pin and 10-Pin 3mm × 3mm DFN, 8-Pin and 10-Pin MSOP, and 8-Pin and 14-Pin SO Packages
AEC-Q100 data available for specific packages
Typical Application
Description
The LTC2850, LTC2851 and LTC2852 are low power, 20Mbps RS485/RS422 transceivers operating on 3.3V supplies. The receiver has a 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 thermal shutdown.
Enhanced ESD protection allows these parts to withstand up to ±15kV (human body model) on the transceiver interface pins without latchup or damage.
Packaging
CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.
For complete and up to date package information and drawings, please refer to our packaging page
| Part Number | Package | Code | Temp | Package Drawing |
RoHS |
|---|---|---|---|---|---|
| LTC2852CDD#PBF | 3x3 DFN-10 | DD | C | 05-08-1699 | Yes |
| LTC2852CDD#TRPBF | 3x3 DFN-10 | DD | C | 05-08-1699 | Yes |
| LTC2852CMS#PBF | MS-10 | MS | C | 05-08-1661 | Yes |
| LTC2852CMS#TRPBF | MS-10 | MS | C | 05-08-1661 | Yes |
| LTC2852CS#PBF | SO-14 | S | C | 05-08-1610 (S14) | Yes |
| LTC2852CS#TRPBF | SO-14 | S | C | 05-08-1610 (S14) | Yes |
| LTC2852HDD#PBF | 3x3 DFN-10 | DD | H | 05-08-1699 | Yes |
| LTC2852HDD#TRPBF | 3x3 DFN-10 | DD | H | 05-08-1699 | Yes |
| LTC2852HMS#PBF | MS-10 | MS | H | 05-08-1661 | Yes |
| LTC2852HMS#TRPBF | MS-10 | MS | H | 05-08-1661 | Yes |
| LTC2852HS#PBF | SO-14 | S | H | 05-08-1610 (S14) | Yes |
| LTC2852HS#TRPBF | SO-14 | S | H | 05-08-1610 (S14) | Yes |
| LTC2852IDD#PBF | 3x3 DFN-10 | DD | I | 05-08-1699 | Yes |
| LTC2852IDD#TRPBF | 3x3 DFN-10 | DD | I | 05-08-1699 | Yes |
| LTC2852IMS#PBF | MS-10 | MS | I | 05-08-1661 | Yes |
| LTC2852IMS#TRPBF | MS-10 | MS | I | 05-08-1661 | Yes |
| LTC2852IS#PBF | SO-14 | S | I | 05-08-1610 (S14) | Yes |
| LTC2852IS#TRPBF | SO-14 | S | I | 05-08-1610 (S14) | Yes |
| LTC2852MPDD | 3x3 DFN-10 | DD | MP | 05-08-1699 | No |
| LTC2852MPDD#PBF | 3x3 DFN-10 | DD | MP | 05-08-1699 | Yes |
| LTC2852MPDD#TRPBF | 3x3 DFN-10 | DD | MP | 05-08-1699 | Yes |
| LTC2852MPMS | MS-10 | MS | MP | 05-08-1661 | No |
| LTC2852MPMS#PBF | MS-10 | MS | MP | 05-08-1661 | Yes |
| LTC2852MPMS#TRPBF | MS-10 | MS | MP | 05-08-1661 | Yes |
| LTC2852MPS | SO-14 | S | MP | 05-08-1610 (S14) | No |
| LTC2852MPS#PBF | SO-14 | S | MP | 05-08-1610 (S14) | Yes |
| LTC2852MPS#TRPBF | SO-14 | S | MP | 05-08-1610 (S14) | Yes |
Order Info
- Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
- Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
- Please refer to our general ordering information or the product datasheet for more details
Package Variations and Pricing
sales office or authorized distributor.Demo Boards
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.Click here to view our complete list of demo boards
Designed for Automotive and Transportation Applications
AEC-Q100 data is available for these specific part numbers. Please contact your local sales representative for more information regarding reliability reports or to inquire about parts that are not included. For more information, view our Automotive and Transportation page
| Part Number | Package | Temp | Price (1-99) |
Price (1k)* |
RoHS | |
|---|---|---|---|---|---|---|
| LTC2852HDD#PBF | 3x3 DFN-10 | H | $3.00 | $2.05 | Yes | |
| LTC2852HDD#TRPBF | 3x3 DFN-10 | H | $2.11 | Yes | ||
| LTC2852IDD#PBF | 3x3 DFN-10 | I | $2.64 | $1.86 | Yes | |
| LTC2852IDD#TRPBF | 3x3 DFN-10 | I | $1.92 | Yes | ||
| LTC2852MPDD#PBF | 3x3 DFN-10 | MP | $6.64 | $4.65 | Yes | |
| LTC2852MPDD#TRPBF | 3x3 DFN-10 | MP | $4.71 | Yes | ||
| Buy Now • Request Samples | ||||||
Applications
- Low Power RS485/RS422 Transceiver
- Level Translator
- Backplane Transceiver
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