MAX488
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The MAX488 is a low-power RS-485/RS-422 transceiver designed for bidirectional data communication on multipoint bus transmission lines. It combines a differential driver and a differential receiver, both of which operate from a single 5V power supply. The transceiver features reduced power consumption, making it ideal for power-sensitive applications. The MAX488 is designed to meet the requirements of both RS-485 and RS-422 standards and ensures reliable data communication over long distances in noisy environments.
Key Features:
- Low power consumption
- RS-485/RS-422 compatible
- Operates from a single 5V supply
- -7V to +12V common-mode input voltage range
- Allows up to 32 transceivers on the bus
- Thermal shutdown protection
- Short-circuit protection
- Enhanced electrostatic discharge (ESD) protection
- Supply Voltage (VCC): 4.75V to 5.25V
- Driver Output Voltage Range: -7V to +12V
- Receiver Input Sensitivity: ±200mV
- Receiver Input Voltage Range: -7V to +12V
- Driver Output Short-Circuit Current: ±250mA
- Data Rate: Up to 250 kbps
- Operating Temperature Range: 0°C to +70°C
- Package: 8-pin SOIC/DIP
- Industrial Control Networks: Ensures robust communication in factory automation systems.
- Building Automation: Interfaces sensors and controllers in building management systems.
- Security Systems: Connects various security devices and control panels.
- HVAC Systems: Manages data communication in heating, ventilation, and air conditioning systems.
- Point-of-Sale Systems: Facilitates reliable communication in retail environments.
- Instrumentation: Used in test and measurement equipment for data transfer.
Technical Specifications:
- Logic Family: CMOS
- Number of Channels: 3
- Switch Configuration: Single-Pole Double-Throw (SPDT)
- Supply Voltage Range: 3V to 15V
- “ON” Resistance (R_ON): 125Ω typical at V_DD = 10V
- “OFF” Leakage Current (I_OFF): ±100pA typical at V_DD = 10V
- Control Input Voltage (V_IH): 0.7 V_DD min, 0.3 V_DD max
- Maximum Operating Frequency: 40 MHz at V_DD = 10V
Applications:
- Signal routing and switching
- Analog and digital multiplexing
- Audio and video signal processing
- Data acquisition systems
- Test equipment