ADM3485E - ADI

The pictures are for reference only, and the specific specifications can be found in the product manual.

Part No

ADM3485E
Manufacturer

ADI
ChipWorker Part#

CW543099765
Description

15kV Esd-protected, 3.3V,12Mbps, Eia Rs-485/rs-422 Transceiver
Documentation

Datasheet

ADM3485E Global Supplier

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ADM3485E Specifications

Attribute	Attribute Value

Part Number	ADM3485E
Manufacturer	ADI
ChipWorker Part#	CW543099765
Documentation	Datasheet
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Product Lifecycle Status	Active

Product Description

Product Details
The ADM3485E is a 3.3 V, low power data transceiver with ±15 kV ESD protection, suitable for half-duplex communication on multipoint bus transmission lines. The ADM3485E is designed for balanced data transmission and complies with TIA/EIA standards RS485 and RS-422. The ADM3485E is a half-duplex transceiver that shares differential lines and has separate enable inputs for the driver and the receiver.
The devices have a 12 kΩ receiver input impedance, which allows up to 32 transceivers on a bus. Because only one driver should be enabled at any time, the output of a disabled or powered-down driver is tristated to avoid overloading the bus.
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 part is fully specified over the industrial temperature range and is available in an 8-lead narrow SOIC package.
**APPLICATIONS**
Power/energy metering
Telecommunications
EMI-sensitive systems Industrial control
Local area networks
### Features and Benefits
TIA/EIA RS-485/RS-422 compliant
±15 kV ESD protection on RS-485 input/output pins
12 Mbps data rate
Half-duplex transceiver
Up to 32 nodes on the bus
Receiver open-circuit, fail-safe design
Low power shutdown current
Outputs high-Z when disabled or powered off
Common-mode input range: −7 V to +12 V
Thermal shutdown and short-circuit protection
Industry-standard 75176 pinout
8-lead narrow SOIC package

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- Electrical testing
- Surface testing

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