DS275
Line-Powered RS-232 Transceiver Chip
Part Details
- Low-power serial transmitter/receiver for battery-powered systems
- Power-saving transmitter steals power from receive signal
- Ultra-low-static current, even connected to RS-232-E port
- Transmitter level varies from +5 to +12V
- Compatible with RS-232-E signals
- Low-power CMOS
The DS275 Line-Powered RS-232 Transceiver Chip derives power from the data line providing an extremely low-cost and low-power RS-232 serial port interface. The receiver input translates RS-232 signal levels to common CMOS/TTL levels. The transmitter circuit steals current from the receive RS-232 signal when that signal is in a negative state (marking). Since most serial communication ports remain in a negative state statically, using the receive signal for negative power greatly reduces the DS275's static power consumption.
The DS275's power-saving interface is ideal for connecting battery-powered systems such as laptop computers, remote sensors, and portable instrumentation.
Documentation
Data Sheet 1
Reliability Data 1
This is the most up-to-date revision of the Data Sheet.
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