DocumentationDatasheet
Reliability Data
Product Selector Card
Press Release
Features
- PROFIBUS IEC 61158-2 Compliant
- Protected from Overvoltage Line Faults to ±60V
- ±52kV ESD Interface Pins, ±15kV All Other Pins
- ±2kV (Level 4) IEC61000-4-4 Fast Transient Burst
- ±25V Working Common Mode Range
- 20Mbps Maximum Baud Rate
- 1.65V to 5.5V Logic Supply Pin for Flexible Digital Interfacing (LTC2877)
- 5V Supply Can Operate Down to 3V for Low Power, Low Swing Applications
- Fully Balanced Differential Receiver Thresholds with
- 240mV Hysteresis for Superior Noise Tolerance and
- Low Duty Cycle Distortion
- Receiver Failsafe for Open, Shorted and Terminated Conditions
- Wide Operating Temperature Range: –40°C to 125°C
- Available in Small DFN and MSOP Packages
Typical Application
Description
The LTC®2876 and LTC2877 are PROFIBUS RS485 transceivers designed to meet the test specifications for PROFIBUS-DP masters and PROFIBUS-DP slaves, fully compatible with IEC 61158-2, type 3: medium attachment unit (MAU). With operation up to 20Mbps, the LTC2876/ LTC2877 supports all PROFIBUS data rates up to 12Mbps.
The LTC2876 and LTC2877 are exceptionally robust, tolerating ±60V faults on the bus pins and protected to ±52kV ESD. These devices are suitable for harsh environments or where 24V power might be inadvertently connected. Extended ±25V input common mode range and full failsafe operation improve data communication reliability in noisy systems.
The LTC2876 and LTC2877 meet PROFIBUS and RS485 specifications with a supply voltage of 4.5V to 5.5V but can operate down to 3V with reduced supply current.
| Product Selection Guide | ||
|---|---|---|
| PART NUMBER | LOGIC SUPPLY PIN | PACKAGE |
| LTC2876 | NO | DFN-8, MSOP-8 |
| LTC2877 | YES | DFN-10, MSOP-10 |
3x3 DFN-10,MS-10E
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC2877CMSE#TRPBF | MSOP | 10 | C | $3.96 | $2.79 |
| LTC2877HDD#TRPBF | DFN | 10 | H | $5.22 | $3.67 |
| LTC2877IDD#TRPBF | DFN | 10 | I | $4.55 | $3.20 |
| LTC2877CDD#TRPBF | DFN | 10 | C | $3.96 | $2.79 |
| LTC2877CMSE#PBF | MSOP | 10 | C | $3.90 | $2.73 |
| LTC2877IMSE#TRPBF | MSOP | 10 | I | $4.55 | $3.20 |
| LTC2877HMSE#TRPBF | MSOP | 10 | H | $5.22 | $3.67 |
| LTC2877HMSE#PBF | MSOP | 10 | H | $5.16 | $3.61 |
| LTC2877CDD#PBF | DFN | 10 | C | $3.90 | $2.73 |
| LTC2877IDD#PBF | DFN | 10 | I | $4.49 | $3.14 |
| LTC2877HDD#PBF | DFN | 10 | H | $5.16 | $3.61 |
| LTC2877IMSE#PBF | MSOP | 10 | I | $4.49 | $3.14 |
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.