MAX3485EESA+T
| Parameters | |
|---|---|
| Series | - |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
| RoHS Status | ROHS3 Compliant |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Mfr | Analog Devices Inc./Maxim Integrated |
| Mounting Type | Surface Mount |
| Operating Temperature | -40°C ~ 85°C |
| Type | Transceiver |
| Data Rate | 12Mbps |
| Receiver Hysteresis | 50 mV |
| Supplier Device Package | 8-SOIC |
| Voltage - Supply | 3V ~ 3.6V |
| Protocol | RS422, RS485 |
| Number of Drivers/Receivers | 1/1 |
| Duplex | Half |
| Package | Tape & Reel (TR) |
| Product Status | Active |
| Base Product Number | MAX3485 |
| REACH Status | REACH Unaffected |
| Standard Package | 2,500 |
| ECCN | EAR99 |
| HTSUS | 8542.39.0001 |
MAX3485EESA+T 1/1 Transceiver Half RS422, RS485
The MAX3485EESA+T from Analog Devices (formerly Maxim Integrated) is a high-performance, 3.3V-powered, ±15kV ESD-protected RS-485/RS-422 transceiver housed in a compact 8-pin SOIC package. Engineered for robust industrial communication, this device operates from a single +3.3V supply without requiring a charge pump, making it highly efficient. It features a half-duplex communication mode, ensuring data can be transmitted and received, albeit not simultaneously, on a single pair of differential lines. The transceiver supports a guaranteed data rate of up to 12Mbps, which is essential for high-speed data transmission in modern control systems.
A key feature is its enhanced ESD protection, which safeguards the RS-485 I/O pins to ±15kV (Human Body Model), ±8kV (IEC 1000-4-2 Contact Discharge), and ±15kV (IEC 1000-4-2 Air-Gap Discharge), providing exceptional resilience in harsh electrical environments. The transceiver also includes a 2nA low-current shutdown mode for power conservation, a -7V to +12V common-mode input voltage range for noise immunity, and industry-standard 75176 pinout for easy design integration. It is designed to be interoperable with +5V logic systems, and its drivers are short-circuit current limited and protected by thermal shutdown circuitry. The receiver input features a fail-safe function that ensures a logic-high output if the input is open, maintaining system stability. The "T" suffix indicates that the device is supplied in a tape and reel format, ideal for automated surface-mount assembly processes in high-volume manufacturing.
Alternative RS-485 Transceiver Models
● SIT3485EESA (Sitronix): A high-performance, 3.0V to 5.5V wide supply voltage, 12Mbps, 256-node, half-duplex RS-485/RS-422 transceiver that offers pin-to-pin compatibility and enhanced ESD protection for industrial and automotive applications.
● ADM3485E (Analog Devices): A 3.3V, 12Mbps, half-duplex RS-485/RS-422 transceiver that provides similar high ESD protection and low-power operation, designed for multipoint data transmission systems in industrial control and instrumentation.
● SN65HVD75 (Texas Instruments): A 3.3V, 20Mbps, half-duplex RS-485 transceiver with high ESD protection, offering a higher data rate and robust performance for high-speed communication in industrial and automotive networks.
● SP3485EN (Exar/MaxLinear): A 3.3V, 10Mbps, half-duplex RS-485/RS-422 transceiver that features low power consumption and is designed for point-to-point and multipoint data bus applications in industrial and commercial systems.
