ADM489
PRODUCTION5 V, Slew-Rate Limited, Low Power, 250 kbps, Full Duplex EIA RS-485 Transceiver (with DE/RE)
- Part Models
- 3
- 1ku List Price
- price unavailable
Overview
- Meets EIA RS-485 Standard
- 250 kbps Data Rate
- Single 5 V ± 10% Supply
- –7 V to +12 V Bus Common-Mode Range
- 12 kO Input Impedance
- 2 kV EFT Protection Meets IEC1000-4-4
- High EM Immunity Meets IEC1000-4-3
- Reduced Slew Rate for Low EM Interference
- Short Circuit Protection
- Excellent Noise Immunity
- 30 µA Supply Current
The ADM488 and ADM489 are low power differential line transceiver suitable for communication on multipoint bus transmission lines.
They are intended for balanced data transmission and comply with both EIA Standards RS-485 and RS-422. Both products contains a single differential line driver and a single differential line receiver making them suitable for full duplex data transfer.
The ADM489 contains an additional receiver and driver enable control.
The input impedance is 12 kΩ, allowing 32 transceivers to be connected on the bus.
The ADM488 / ADM489 operates from a single +5 V ± 10% power supply. Excessive power dissipation caused by bus contention or by output shorting is prevented by a thermal shutdown circuit. This feature forces the driver output into a high impedance state if during fault conditions a significant temperature increase is detected in the internal driver circuitry.
The receiver contains a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating). The ADM488 / ADM489 is fabricated on BiCMOS, an advanced mixed technology process combining low power CMOS with fast switching bipolar technology.
The ADM488 / ADM489 is fully specified over the industrial temperature range and is available in DIP, SOIC and TSSOP packages.
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 |
|---|---|---|---|
| ADM489ARZ | 14-Lead SOIC | ||
| ADM489ARZ-REEL | 14-Lead SOIC | ||
| ADM489ARZ-REEL7 | 14-Lead SOIC |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Nov 23, 2010 - 10_0004 Halogen Free Material Change for SOIC Narrow Body Products Assembled at Amkor |
||
| ADM489ARZ | ||
| ADM489ARZ-REEL | ||
| ADM489ARZ-REEL7 | ||
This is the most up-to-date revision of the Data Sheet.
Evaluation Kits
Standard RS-485 Full-Duplex (14-lead SOIC) Evaluation Board, EVAL-RS485FDEBZ