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I. Overview
The HG3085E for RS-485/RS-422 communication is a high-speed transceiver for half-duplex communication, which includes a driver and a receiver. With a fail-safe circuit, when the receiver input is open or short-circuited, it ensures that the receiver input logic is high. If all transmitters connected to the terminal match bus are disabled (high impedance), the receiver will output a logic high level. HG3085E has a low slew rate driver, which can reduce EMI and reflections caused by improper terminal matching cables, and achieve error-free data transmission up to 500Kbps; in addition, the receiver of HG3085E has 1/8 unit load input impedance, More than 256 transceivers can be connected to the bus. It can completely replace MAX3085E.
2. Features
● Complete fail-safe receiver
● Powerful slew rate control function to realize error-free data transmission
● 1nA low current shutdown mode
● More than 256 transceivers can be connected to the bus
● SOP-8, DIP-8 package
Three, parameters
●Voltage input range: -8V~13V
●Anti-static: ±15KV
●Working temperature: -40℃～85℃
Four, application areas
● Industrial control
● Access control, security system
● Meter
● Level conversion
● Transceiver applications sensitive to EMI
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