RS-485 и RS-422 MAX3291CSD+

Приемопередатчик , RS422, RS485, полнодуплексный, 1 драйвер, 1 приемник, 10Мб/с, 5В питание, SO-14

The MAX3291CSD+ from Maxim Integrated Products is a RS485/RS422 transceiver with pre-emphasis for high speed, long distance communication in 14 pin NSOIC package. This high speed transceiver has one driver and one receiver. It contains driver pre-emphasis circuitry which extends distance and increases data rate of reliable communication by reducing intersymbol interference caused by long cables. The MAX3291 is programmable for data rates of 5Mbps to 10Mbps by using a single external resistor. This full duplex device operates from a single +5V supply and offers low current shutdown mode that reduces supply current to 100nA. The device has driver output short circuit current limiting and fail-safe receiver input that provides logic high output if input is open circuit. A 1/4 unit load receiver input impedance allows up to 128 transceivers on the bus. It is used in long-distance, high-speed RS485/RS422 communications, telecommunications and industrial control LANs.

• Supply voltage range from 4.75V to 5.25V
• Operating temperature range from 0°C to +70°C
• Pre-emphasis increases distance and data rate of reliable RS485
• RS422 communication
• Common mode input voltage range from -7V to +12V
• Pin compatible with 75180, MAX489, MAX491 MAX3080, MAX3083, MAX3086, MAX1482 devices
• No load supply current of 2mA
• PEE input current of -30µA

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