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LT1785IS8
+BOMRS-422/RS-485 Interface IC LT1785 - 60V Fault Protected RS485/RS422 Transceivers
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Nhà sản xuấtAnalog Devices
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Ông. Phần #LT1785IS8
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Bảng dữ liệu LT1785IS8 DataSheet
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Description
Key features of the LT1785IS8 include the ability to operate at data rates up to 250 kbps, a wide supply voltage range (typically 4.75V to 5.25V), and low power consumption. It also offers enhanced electrical characteristics such as high noise immunity, ESD protection, and thermal shutdown for added reliability and safety. The transceiver can drive up to 32 unit loads, making it suitable for complex network designs.
Overall, the LT1785IS8 is ideal for applications in industrial automation, building management systems, and any environment where reliable serial communication is essential. Its combination of performance and protection features makes it a popular choice for designers seeking a dependable communication solution.
Equivalent
1. MAX485 from Maxim Integrated
2. SN75176B from Texas Instruments
3. ADM485 from Analog Devices
4. SP485 from Sipex/Exar
5. AM26C31 from Texas Instruments
These alternatives offer similar functionalities such as differential signaling, high data rates, and compatibility with RS-485/RS-422 standards. Always check specific parameters to ensure compatibility with your application's requirements.
Features
1. Wide Supply Voltage Range: Operates from a 4.75V to 5.25V supply.
2. High Data Rate: Supports data rates up to 250kbps.
3. Bus-Pin Protection: Has ±60V fault protection on the bus pins for enhanced durability.
4. Extended Common-Mode Range: Operates with a common-mode voltage range from -7V to +12V.
5. Thermal Shutdown: Includes a thermal shutdown feature to protect against overheating.
6. Short-Circuit Current Limiting: Protects against excessive current conditions.
7. Failsafe Receiver: Ensures a known output state when the bus is idle, shorted, or open.
8. Low Power Consumption: Designed for low power draw, making it suitable for battery-operated devices.
9. Slew Rate Limiting: Provides reduced EMI by limiting the driver output slew rate.
10. Package Options: Available in space-saving SO-8 package.
These features make the LT1785IS8 suitable for use in industrial, commercial, and consumer applications where robust data transmission and fault tolerance are required.
Pinout
1. VCC (Pin 8): Supply voltage pin.
2. GND (Pin 5): Ground reference for the device.
3. RO (Pin 1): Receiver output pin.
4. RE (Pin 2): Receiver enable pin. Active low to enable the receiver.
5. DE (Pin 3): Driver enable pin. Active high to enable the driver.
6. DI (Pin 4): Driver input pin.
7. A (Pin 6): Driver output and receiver input.
8. B (Pin 7): Driver output and receiver input.
This IC is used for converting logic signals to RS-485/RS-422 compliant differential signals, allowing communication over long distances and in noisy environments.