ADM3486E
PRODUCTION3.3 V, ±15 kV ESD-Protected, RS-485/RS-422 Transceiver (Half Duplex, 2.5 Mbps, DE/RE)
- Part Models
- 2
- 1ku List Price
- Starting From $2.00
Overview
- TIA/EIA RS-485/RS-422 compliant
- ±15 kV ESD-protection on RS-485 input/output pins
- Data rates - ADM3486E: 2.5 Mbps
- Half duplex
- Receiver open-circuit, fail-safe design
- Low Power shutdown current
- 32 nodes on the bus
- Outputs high-Z when disabled or powered off
- −7 V to +12 V common-mode input range
- Thermal shutdown and short-circuit protection
- Industry-standard 75176 pinout
- 8-lead SOIC package
The ADM3483E / ADM3486E / ADM3488E / ADM3490E / ADM3491E are 3.3 V low power data transceivers with ±15 kV ESD protection suitable for full and 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 ADM3483E / ADM3486E are half-duplex transceiver that shares differential lines and has separate enable inputs for the driver and receiver. The full-duplex ADM3488E / ADM3490E / ADM3491E transceivers have dedicated differential line driver outputs and receiver inputs. The ADM3491E also features enable inputs for the driver and receiver.
The devices have a 12 kΩ receiver input impedance which allows up to 32 transceivers on a bus. Since only one driver should be enabled at any time, the output of a disabled or powered down driver is three-stated to avoid overloading the bus. The driver outputs of the ADM3483E / ADM3486E / ADM3488E are slew rate limited, in order to reduce EMI and data errors caused by reflections from improperly terminated buses. The receiver has a fail-safe feature that ensures a logic high output when the inputs are floating.
Excessive power dissipation caused by bus contention or by output shorting is prevented with a thermal shutdown circuit. The parts are fully specified over the commercial and industrial temperature ranges and are available in narrow 8-lead and 14-lead (ADM3491E) SOIC 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 |
|---|---|---|---|
| ADM3486EARZ | 8-Lead SOIC | ||
| ADM3486EARZ-REEL7 | 8-Lead SOIC |
This is the most up-to-date revision of the Data Sheet.
Hardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| ADM3065E | PRODUCTION | 3.0 V to 5.5 V, ±12 kV IEC ESD Protected, Half Duplex 50 Mbps RS-485 Transceiver |
Evaluation Kits
Standard RS-485 Half-Duplex Evaluation Board, EVAL-RS485HDEBZ