ADM485E
PRODUCTION5 V, ±15 kV ESD Protected, Half Duplex RS-485/RS-422 Transceiver (2.5 Mbps)
- Part Models
- 2
- 1ku List Price
- Starting From $1.21
Overview
- TIA/EIA RS-485/RS-422 compliant
- ESD protection on RS-485 I/O pins
- ±15 kV human body model
- Data rates: 2.5 Mbps
- Half-duplex options
- Reduced slew rates for low EMI
- −7 V to +12 V common-mode input range
- Thermal shutdown and short-circuit protection
- 8-lead SOIC packages
The ADM485E / ADM487E / ADM1487E are 5 V low power data transceivers with ±15 kV ESD protection suitable for half duplex communication on multipoint bus transmission lines. They are designed for balanced data transmission and comply with TIA/EIA standards RS-485 and RS-422. The ADM487E and the ADM1487E have a 1/4 unit load receiver input impedance that allows up to 128 transceivers on a bus, while the ADM485E allow up to 32 transceivers on a bus. Since only one driver is enabled at any time, the output of a disabled or powerdown driver is three-stated to avoid overloading the bus.
The driver outputs are slew rate-limited in order to reduce EMI and data errors caused by reflections from improperly terminated buses. Excessive power dissipation caused by bus contention or output shorting is prevented with a thermal shutdown circuit. The parts are fully specified over the industrial temperature ranges and are available in 8-lead SOIC packages
APPLICATIONS
- Energy/power metering
- Lighting systems
- Industrial control
- Telecommunications
- Security systems
- Instrumentation
Documentation
Data Sheet 1
Application Note 2
Video 1
Webcast 1
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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| ADM485EARZ | 8-Lead SOIC | ||
| ADM485EARZ-REEL7 | 8-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Oct 23, 2013 - 13_0105 Notification of Qualification of Alternate fab foundry for RS-485/RS-422 Transceiver die at ADI, Limerick, Ireland |
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| ADM485EARZ | PRODUCTION | |
| ADM485EARZ-REEL7 | PRODUCTION | |
|
Nov 23, 2010 - 10_0004 Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor |
||
| ADM485EARZ | PRODUCTION | |
| ADM485EARZ-REEL7 | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ