Analog Devices LT1791ACS#PBF RS422/RS485 transceiver, full duplex, 250 kbps data rate, 1/1 driver/receiver, 4.75-5.25V supply, 14-SOIC surface mount package, tube.
| Parameter | Value |
|---|---|
| Type | Transceiver |
| Mounting | Surface Mount |
| Voltage | 4.75V ~ 5.25V |
| Protocol | RS422, RS485 |
| Operating temperature | 0°C ~ 70°C |
| Duplex | Full |
| Package | Tube |
| Data rate | 250kbps |
| Case | 14-SOIC (0.154\", 3.90mm Width) |
| Receiver hysteresis | 20 mV |
| Number of drivers (Receivers) | 1/1 |
The LT1791ACS#PBF: The 20 mV receiver hysteresis filters out noise on long cable runs — at 250 kbps on a twisted pair, that hysteresis prevents the line from chattering on the zero-crossing. The commercial temperature range (0°C to 70°C) limits this part to indoor, climate-controlled environments.
The LT1791ACS#PBF is rated for 250 kbps data rate in RS422/RS485 full-duplex mode.
The ADM488ABRZ and ADM3070EARZ are also similar in duplex and speed but differ in supply voltage and hysteresis.