The MAX3471 half-duplex transceiver is intended for lithium battery-powered RS-485/RS-422 applications. It draws only 1.6µA (typical) supply current from a 3.6V supply with the receiver enabled and the driver disabled. Its wide 2.5V to 5.5V supply voltage guarantees operation over the lifetime of a lithium battery.
This device features true fail-safe operation that guarantees a logic-high receiver output when the receiver inputs are open or shorted. This means that the receiver output will be a logic high if all transmitters on a terminated bus are disabled (high impedance). The MAX3471 has a 1/8-unit load input resistance. When driver outputs are enabled and pulled above VCC or below GND, internal circuitry prevents battery back-charging.
The MAX3471 is available in an 8-pin µMAX package.
|Tx EN||Rx EN||Rx/Tx on Bus||Rx Failsafe w/ Inputs||Slew Rate Limiting||Oper. Temp.|
|MAX3471||1Tx + 1Rx||Half||2.5 to 5.5||0.0016||64||Yes||Yes||256||Open or Shorted||No|
|See All RS-485/RS-422 Line Driver/Receivers (204)|
| Pricing Notes: |
This pricing is BUDGETARY, for comparing similar parts. Prices are in U.S. dollars and subject to change. Quantity pricing may vary substantially and international prices may differ due to local duties, taxes, fees, and exchange rates. For volume-specific and version-specific prices and delivery, please see the price and availability page or contact an authorized distributor.
|Device||Fab Process||Technology||Sample size||Rejects||FIT at 25°C||FIT at 55°C|
|App Note||3741||Analog ICs for Low Voltage Systems|
|App Note||3180||Standby Current for RS-422 Repeater Is Less Than 3µA|
|App Note||1090||Methods for Trimming the Power Required in RS-485 Systems|
|App Note||367||Explanation of Maxim RS-485 Features|