ADM1491EBRMZ - Robust, High-Speed Differential Line Transceiver

The ADM1491EBRMZ is a high-performance, half-duplex differential line transceiver designed by Analog Devices Inc. to operate using a single 3.3V power supply. This device is suitable for bidirectional communication on balanced transmission lines and complies with the TIA/EIA RS-485/RS-422 standards.

Encased in a compact 10-lead MSOP (Mini Small Outline Package), the ADM1491EBRMZ is engineered for high-speed data transmission up to 3.3 Mbps. This makes it an excellent choice for applications that require efficient data communication such as industrial control systems, building automation, and networked sensors.

One of the key features of the ADM1491EBRMZ is its enhanced ESD (Electrostatic Discharge) protection. The device can withstand ESD strikes of up to ±15 kV on the transceiver bus pins, significantly improving the robustness and reliability of the applications it is used in. Additionally, the integrated thermal shutdown and short-circuit protection safeguard the transceiver from damage due to faulty wiring or extreme temperature conditions.

The ADM1491EBRMZ supports up to 32 devices on the bus, which allows for the creation of complex communication networks. Its differential design provides immunity to common-mode noise, a critical factor for maintaining signal integrity in harsh industrial environments.

Other notable features include:

• Low quiescent current consumption, making it suitable for power-sensitive applications.
• True fail-safe receiver inputs, ensuring a logic high receiver output when the inputs are open, shorted, or idle.
• Hot Swap capability, which enables devices to be inserted or removed from a live bus without causing data corruption.
• A driver slew rate limit function that minimizes electromagnetic interference (EMI) and reduces reflections caused by improperly terminated cables.

With its combination of high-speed performance, robust protection features, and low power consumption, the ADM1491EBRMZ from Analog Devices Inc. is an ideal solution for reliable data transmission in demanding applications.

Product Specifications:

Manufacturer:

Analog Devices Inc.

Part Number:

ADM1491EBRMZ

Package Type:

10-lead MSOP

Protocol:

RS-485/RS-422

Supply Voltage:

3.3V

Data Rate:

Up to 3.3 Mbps

ESD Protection:

±15 kV

Temperature Range:

-40°C to +85°C

Whether you're developing a new industrial communication system or upgrading an existing network, the ADM1491EBRMZ provides the performance and durability needed to ensure reliable operation under the toughest conditions.