MAX1483CPA Low-Power RS-485/RS-422 Transceiver DIP-8 (MAX1483CPA IC)
The MAX1483CPA is a high-efficiency transceiver designed for half-duplex RS-485 and RS-422 communication. Housed in a standard 8-pin DIP package, it is specifically engineered for applications sensitive to electromagnetic interference (EMI). The device features slew-rate-limited drivers that minimize EMI and reduce reflections caused by improperly terminated cables, ensuring reliable data transmission at rates up to 250kbps.
One of its standout features is the extremely low power consumption, drawing only 20uA of supply current. It also includes a 0.1uA low-current shutdown mode, making it an excellent choice for battery-powered industrial networks. With a 1/8-unit-load input impedance, it allows up to 25Transceivers to be connected on a single bus.
Key Features
- Slew-Rate Limited: Reduces EMI and minimizes reflections for cleaner signal integrity.
- Ultra-Low Power: Draws only 20uA operating current and 0.1uA in shutdown.
- High Node Count: Supports up to 256 transceivers on the same communication bus.
- Fail-Safe Receiver: Guarantees a logic-high output if the receiver inputs are open circuit.
- Robust Protection: Features current limiting and thermal shutdown for driver overload protection.
- Extended Common-Mode Range: Operates with a -7V to +12V common-mode input voltage range.
Specifications
- IC Type: RS-485/RS-422 Transceiver
- Duplex: Half-Duplex
- Data Rate: 250kbps
- Supply Voltage (VCC): +5V (4.75V to 5.25V)
- Supply Current: 20uA (Typ)
- Receiver Hysteresis: 75mV
- Package Type: PDIP-8
- Mounting Type: Through-Hole
- Operating Temperature: 0 to +70 degrees Celsius
Interfaces
- Pin 1 (RO): Receiver Output
- Pin 2 (/RE): Receiver Output Enable (Active Low)
- Pin 3 (DE): Driver Output Enable (Active High)
- Pin 4 (DI): Driver Input
- Pin 5 (GND): Ground
- Pin 6 (A): Non-inverting Receiver Input and Non-inverting Driver Output
- Pin 7 (B): Inverting Receiver Input and Inverting Driver Output
- Pin 8 (VCC): Positive Supply (+5V)
