MAX483ECPA+

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Transceiver
Protocol:	RS422, RS485
Number of Drivers/Receivers:	1/1
Duplex:	Half
Receiver Hysteresis:	70mV
Data Rate:	250kbps
Voltage - Supply:	4.75 V ~ 5.25 V
Operating Temperature:	0°C ~ 70°C
Mounting Type:	Through Hole
Package / Case:	8-DIP (0.300", 7.62mm)
Supplier Device Package:	8-PDIP
Base Part Number:	MAX483

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MAX483ECPA+ is an advanced monolithic, high-speed field-effect MOSFET integrated circuit (IC) with comprehensive functions, which is a kind of conventional peak+ serial data transceiver embedded in logic and system interface. It is a very cost-effective product with high speed, low power consumption and excellent performance. This paper will analyze the application field and working principles of MAX483ECPA+.The application field of MAX483ECPA+ is mainly used in computer peripheral interface bus communication and signal isolation, computer interconnect systems, communication interface circuit, communication interface signal conversion, signal isolation and data transmission, data acquisition and communication interface, signal re-amplification, access control system and other fields. MAX483ECPA+ could provide up to five driver circuits with improved design and low power consumption. In addition, it has two high speed receivers as well as three fast transmitters which can provide a maximum data rate at 1Mbps (1 Mega bits per second). Its built-in 220 ohm output terminating resistors make it easier for connecting to the data buses.The working principle of MAX483ECPA+ is relatively straightforward. It is basically a bi-directional, four-wire bus transceiver, which could send and receive data at the same time. Its built-in logic circuit can detect and convert the logic level on the four-wire bus. When the high-level logic input is detected, the output becomes a low-level logic output. The low-level input will produce a high-level output. The transmission speed of MAX483ECPA+ is controlled by the external resistor and capacitor connected to the supply voltage oscillation circuit. The oscillation frequency of the supply current can be adjusted freely ranging from 0.4MHz to 4MHz by the external resistor.Furthermore, MAX483ECPA+ also utilizes an internal voltage regulator circuit to provide a stable and reliable operating voltage for its components. It also has two enable signals for two receivers, which is convenient for connecting two independent functional areas. In addition, it has two power-down mode pin which can monitor the attack capability. With low power consumption and low propagation delay, it can realize transmission and reception of data effectively in the application environment with relatively high speed.Additionally, MAX483ECPA+ also has an independent enable signal output pin, which can enable other communication devices such as PCs or even a communication interface adapter in the system. By connecting the external parts such as transistor and amplifier to the enable signal output pin of MAX483ECPA+, another bi-directional protection circuit can be built. This protection circuit is the key to protect the system and the computer host from unauthorized intrusion, which is a great advantage for access control system.In conclusion, MAX483ECPA+ is an excellent device integrated with comprehensive functions, which is designed for signal conversion, signal isolation as well as data transmission. Its high speed, low power consumption and built-in logic circuit make it very suitable for a wide range of applications such as access control system and computer peripheral interface bus communication. Its independent enable signal output pin also provides extra protection for these systems. Therefore, this device is definitely a great choice for designers in the industry who are looking for an advanced and cost-effective signal transceiver hardware solution.

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