Common-Mode Voltage Range of -7 V to 12 V Low Supply Current: 15 mA Max Compatible With ANSI Standard TIA/EIA-485-A and ISO 8482:1987(E) Positive and Negative Output Current Limiting Driver Thermal Shutdown Protection (1)Signaling rate by TIA/EIA-485-A definition restrict transition times...
The range of the common mode voltage Vcm that the driver and receiver can tolerate is expanded to +12 to -7 volts. Since the driver can be disconnected or tristated from the line, it must withstand this common mode voltage range while in the tristate condition. Some RS-422 drivers, ...
17、line or multidrop mode. As many as 32 driver/receiver pairs can share a multidrop networ k. Many characteristics of the drivers and receivers are the same as RS-422. The range of the common mode voltage Vcm that the driver and receiver can tolerate is expande d to +12 to -7 volt...
Common-Mode Voltage Range (–20 V to 25 V) More Than Doubles TIA/EIA 485 Requirement Bus I/O Protection ±16 kV JEDEC HBM Protection Reduced Unit Load for Up to 256 Nodes Failsafe Receiver for Open-Circuit, Short-Circuit and Idle-Bus Conditions Low Power Consumption Low Standby Supply ...
Features ■ Low supply current: 5 mA max ■ -7 V to 12 V common mode input voltage range ■ 70 mV typical input hysteresis ■ Designed for 25 Mbps operation ■ Operate from a single 5 V supply ■±4 kV ESD protection ■ Current limiting and thermal shutdown for driver overload ...
I wonder if I can do this with analog switch ? Maybe the common mode voltage behind the transceiver will be a problem ? Best regards, Thierry It would be possible to switch the TX and RX on the logic side. But if you need to test the RS-422 side, then you indeed need a switch ...
Common-mode voltage range from -7V to +12V, hot-swap feature Allows up to 256 transceivers on the bus, half-duplex operation Interoperable with +5V logic, operates from a single +3.3V supply Current limiting and thermal shutdown Supply current in normal operation is 1.7mA typical at (no ...
Common mode voltage is defined as the mean voltage of the A and B terminals with respect to signal ground. RS-422/485 Application Note 3 BB Electronics -- PO Box 1040 -- Ottawa, IL 61350 PH (815) 433-5100 -- FAX (815) 434-7094 Figure 1.3 Figure 1.4 4 RS-422/485 Application ...
while Figure 3 shows the LTC2865 receiving 20Mbps data with a ±200mV differential signal superimposed on a –12V step in the common mode voltage with a 36ns 10%–90% fall time. In a noisy electrical environment this exceptional common mode rejection can greatly im...
TABLE 1. Interface Standards Specifications Parameter Differential Voltage Swing (typ) Common Mode Voltage Driver Output Rise Time Receiver Common-Mode Voltage Receiver Sensitivity Signaling Rate Transmission Distance (Note 1) RS-422 3.0V 1.8V 10%tui RS-485 3.0V 1.8V 30%tui RS-644 (LVDS) 350mV...