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Part Number: MAX3291
Description: The MAX3291/MAX3292 high-speed RS-485/RS-422 transceivers feature driver preemphasis circuitry, which ...
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MAX3291
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DataSheet
General Description
MAX3291 General Description
The MAX3291/MAX3292 high-speed RS-485/RS-422 transceivers feature driver preemphasis circuitry, which extends the distance and increases the data rate of reliable communication by reducing intersymbol interference (ISI) caused by long cables. The MAX3291 is programmable for data rates of 5Mbps to 10Mbps, while the MAX3292 is programmable for data rates up to 10Mbps by using a single external resistor.
The MAX3291/MAX3292 are full-duplex devices that operate from a single +5V supply and offer a low-current shutdown mode that reduces supply current to 100nA. They feature driver output short-circuit current limiting and a fail-safe receiver input that guarantees a logic-high output if the input is open circuit. A 1/4-unitload receiver input impedance allows up to 128 transceivers on the bus.
MAX3291 Maximum Ratings
Supply Voltage (VCC, VCCD) .................................................+6V
Control Input Voltage (RE, DE, PEE,
PSET, DI) ...................................................-0.3V to (VCC + 0.3V)
Driver Output Voltage (Y, Z) ...............................-7.5V to +12.5V
Receiver Input Voltage (A, B)..............................-7.5V to +12.5V
Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
14-Pin SO (derate 8.7mW/°C above +70°C).................695mW
14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ..800mW
Operating Temperature Ranges
MAX329_C_ D......................................................0°C to +70°C
MAX329_E_ D...................................................-40°C to +85°C
Storage Temperature Range .........................-65°C to +160°C
Lead Temperature (soldering, 10sec) ...........................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
Control Input Voltage (RE, DE, PEE,
PSET, DI) ...................................................-0.3V to (VCC + 0.3V)
Driver Output Voltage (Y, Z) ...............................-7.5V to +12.5V
Receiver Input Voltage (A, B)..............................-7.5V to +12.5V
Receiver Output Voltage (RO)....................-0.3V to (VCC + 0.3V)
Continuous Power Dissipation (TA = +70°C)
14-Pin SO (derate 8.7mW/°C above +70°C).................695mW
14-Pin Plastic DIP (derate 10.0mW/°C above +70°C) ..800mW
Operating Temperature Ranges
MAX329_C_ D......................................................0°C to +70°C
MAX329_E_ D...................................................-40°C to +85°C
Storage Temperature Range .........................-65°C to +160°C
Lead Temperature (soldering, 10sec) ...........................+300°C
Stresses beyond those listed under "Absolute Maximum Ratings" may cause permanent damage to the device. These are stress ratings only, and functional
operation of the device at these or any other conditions beyond those indicated in the operational sections of the specifications is not implied. Exposure to
absolute maximum rating conditions for extended periods may affect device reliability.
MAX3291 Features
`Preemphasis Increases the Distance and Data Rate of Reliable RS-485/RS-422 Communication
`Data Rate Optimized for 5Mbps to 10Mbps (MAX3291) Programmable up to 10Mbps (MAX3292)
`100nA Low-Current Shutdown Mode
`Allow Up to 128 Transceivers on the Bus
`-7V to +12V Common-Mode Input Voltage Range
`Pin-Compatible with '75180, MAX489, MAX491 MAX3080, MAX3083, MAX3086, MAX1482
`Data Rate Optimized for 5Mbps to 10Mbps (MAX3291) Programmable up to 10Mbps (MAX3292)
`100nA Low-Current Shutdown Mode
`Allow Up to 128 Transceivers on the Bus
`-7V to +12V Common-Mode Input Voltage Range
`Pin-Compatible with '75180, MAX489, MAX491 MAX3080, MAX3083, MAX3086, MAX1482
MAX3291 Typical Application
·Long-Distance, High-Speed RS-485/RS-422
·Communications
·Telecommunications
·Industrial-Control Local Area Networks
·Communications
·Telecommunications
·Industrial-Control Local Area Networks
MAX3291 Connection Diagram
MAX3291
PDF/DataSheet Download
- Datasheet: MAX3291
- File Size: 292386 KB
- Manufacturer: Maixm
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