ADM3493 - ADI

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

Part No

ADM3493
Manufacturer

ADI
ChipWorker Part#

CW622292381
Description

3.3V, ⅛ Load, Low Power, RS-485/RS-422 Transceiver (Half Duplex, 250kbps, Slew Rate Limited, DE/RE)
Documentation

Datasheet

ADM3493 Global Supplier

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ADM3493 Specifications

Attribute	Attribute Value

Part Number	ADM3493
Manufacturer	ADI
ChipWorker Part#	CW622292381
Documentation	Datasheet
	expand all
Product Lifecycle Status	Active

Product Description

GENERAL DESCRIPTION
The ADM3493 is a low power, differential line transceiver designed to operate using a single 3.3 V power supply. Low power consumption, coupled with a shutdown mode, makes it ideal for power-sensitive applications. The ADM3493 is suitable for communication on multipoint bus transmission lines.
The device contains one driver and one receiver. Designed for half-duplex communication, the ADM3493 features a slew rate limited driver that minimizes EMI and reduces reflections caused by improperly terminated cables, allowing error-free data transmission at data rates up to 250 kbps.
The receiver input impedance is 96 kΩ, allowing up to 256 transceivers to be connected on the bus. A thermal shutdown circuit prevents excessive power dissipation caused by bus contention or by output shorting. If a significant temperature increase is detected in the internal driver circuitry during fault conditions then the thermal shutdown circuit forces the driver output into a high impedance state. The receiver contains a fail safe feature that results in a logic high output state, if the inputs are unconnected (floating).
The ADM3493 is fully specified over the commercial and industrial temperature ranges and is available in an 8-lead SOIC.
FEATURES
Operates with 3.3 V supply
Interoperable with 5 V logic
EIA RS-422 and RS-485 compliant over full CM range
Data rate: 250 kbps
Half duplex transceiver
Reduced slew rates for low EMI
2 nA supply current in shutdown mode
Up to 256 transceivers on a bus
−7 V to +12 V bus common-mode range
Specified over −40°C to +85°C temperature range
8 ns skew
Available in 8-lead SOIC
APPLICATIONS
Low power RS-485 applications
EMI sensitive systems
DTE-DCE interfaces
Industrial control
Packet switching
Local area networks
Level translators

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