| Number of receivers | 0 |
| Number of transmitters | 4 |
| Supply voltage (Nom) (V) | 5 |
| Signaling rate (Max) (Mbps) | 4 |
| IEC 61000-4-2 contact (+/- kV) | None |
| Fault protection (V) | -10 to 15 |
| Common mode range | -7 to 12 |
| Number of nodes | 32 |
| Isolated | No |
| ICC (Max) (mA) | 60 |
| Rating | Catalog |
| Operating temperature range (C) | 0 to 70 |
- Meets or Exceeds the Requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11
- Designed for Multipoint Transmission on Long Bus Lines in Noisy Environments
- 3-State Outputs
- Common-Mode Output Voltage Range of
-7 V to 12 V - Active-High and Active-Low Enables
- Thermal Shutdown Protection
- Positive- and Negative-Current Limiting
- Operates From Single 5-V Supply
- Logically Interchangeable With AM26LS31
The SN75172 is a monolithic quadruple differential line driver with 3-state outputs. It is designed to meet the requirements of ANSI Standards EIA/TIA-422-B and RS-485 and ITU Recommendation V.11. The device is optimized for balanced multipoint bus transmission at rates of up to 4 megabaud. Each driver features wide positive and negative common-mode output voltage ranges, making it suitable for party-line applications in noisy environments.
The SN75172 provides positive- and negative-current limiting and thermal shutdown for protection from line fault conditions on the transmission bus line. Shutdown occurs at a junction temperature of approximately 150°C. This device offers optimum performance when used with the SN75173 or SN75175 quadruple differential line receivers.
The SN75172 is characterized for operation from 0°C to 70°C.
