Features and Benefits
- RS-485/RS-422 full duplex transceiver, for high speed motor control applications
- 16 Mbps data rate
- ±8 kV ESD protection on RS-485 input/output pins
- Complies with ANSI/TIA/EIA-485-A-1998
- Open circuit fail-safe
- Suitable for 5 V power supply applications
- 32 nodes on the bus (1 unit load)
- Thermal shutdown protection
- Operating temperature range: −40°C to +85°C
Narrow-body 14-lead SOIC
Product DetailsThe ADM1490E/ADM1491E are RS-485 transceivers with ±8 kV ESD protection and is suitable for high speed, full-duplex communication on multipoint transmission lines. In particular, the ADM1491E is designed for use in motor control applications requiring communications at data rates up to 16 Mbps.
- RS-485/RS-422 interfaces
- Industrial field networks
- High data rate motor controlv
- Multipoint data transmission systems
- Single-ended to differential signal conversion
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
The EVAL-RS485FDEBZ allows quick and easy evaluation of full-duplex RS-485 transceivers with standard 14-lead SOIC footprints. The evaluation board allows interfacing via screw terminal block to digital I/O for driver input (DI), receiver output (RO), driver enable (DE) and receiver output (RO). Bus signals A, B, Y and Z (full-duplex bus) can be connected to a bus screw terminal block. Termination resistors are fitted across A and B, as well as Y and Z. These can be connected in half-duplex configuration (A to Y, B to Z), in order to evaluate the RS-485 driver. Footprints are provided for pull-up and pull-down (biasing resistors) on the receiver inputs in order to provide the option to evaluate an RS-485 receiver with this configuration.
Devices for evaluation on the board must be ordered separately.
Product Selection Guide (1)
Solutions Bulletins & Brochures (2)
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.