The MAX3485ESA+T from Analog Devices (ADI) is a low-power 3.3V RS-485/RS-422 transceiver designed for balanced digital communication applications requiring reliable data transmission, low power consumption, and robust noise immunity.
The device integrates a half-duplex RS-485 transceiver with one driver and one receiver in a compact package. It supports data rates up to 10Mbps and operates from a single 3.3V supply, making it suitable for embedded communication systems where low-voltage operation is required.
MAX3485ESA+T features ±15kV ESD protection (Human Body Model) on RS-485 input/output pins, improving system reliability in harsh electrical environments. The receiver includes fail-safe protection to maintain a defined logic-high output when inputs are open, shorted, or idle.
The device provides a 1/4-unit-load receiver input impedance, allowing up to 128 transceivers on a single communication bus. It also includes low shutdown current, thermal shutdown protection, and short-circuit current limiting for enhanced system safety.
The MAX3485ESA+T is supplied in an 8-pin SOIC package and supports an operating temperature range of -40°C to +85°C. Typical applications include industrial automation, building control, instrumentation, smart meters, motor control systems, and embedded RS-485 communication networks.
Key Features
- 3.3V RS-485 / RS-422 transceiver
- Half-duplex communication
- Data rate: up to 10Mbps
- Supply voltage: 3.0V to 3.6V
- Low power operation
- ±15kV ESD protection (HBM)
- Fail-safe receiver input
- 1/4-unit-load input impedance
- Supports up to 128 nodes
- Thermal shutdown protection
- Short-circuit current limiting
- Driver output protection
- Operating temperature: -40°C to +85°C
- Package: 8-pin SOIC
- RoHS compliant
Reviews
There are no reviews yet.