ADM4857ARZ - ADI

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

Part No

ADM4857ARZ
Manufacturer

ADI
ChipWorker Part#

CW769660
Category

Interface IC, Interface Controller
Package

SOIC-8
Description

ANALOG DEVICES ADM4857ARZ Differential Line Transceiver RS422/RS485 Driver, 10Mbps, 4.75V-5.25V supply, NSOIC-8
Documentation

Datasheet

ADM4857ARZ Global Supplier

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ADM4857ARZ Specifications

Attribute	Attribute Value

Part Number	ADM4857ARZ
Manufacturer	ADI
ChipWorker Part#	CW769660
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	8 Pin
Case/Package	SOIC-8
Supply Voltage (DC)	4.75V (min)
Supply Current	0.5 mA
Number of Positions	8 Position
Data Rate	10.0 Mbps
Operating Temperature (Max)	85 ℃
Operating Temperature (Min)	-40 ℃
Supply Voltage	4.75V ~ 5.25V
Supply Voltage (Max)	5.25 V
Supply Voltage (Min)	4.75 V
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Size-Length	5 mm
Size-Width	4 mm
Size-Height	1.5 mm
Operating Temperature	-40℃ ~ 85℃
Product Lifecycle Status	Active
Packaging	Tube
RoHS	RoHS Compliant
Lead-Free Status	Lead Free
REACH SVHC Compliance	No SVHC
REACH SVHC Compliance Edition	2015/12/17
ECCN Code	EAR99

Product Description

The ADM4857ARZ is a RS-485/RS-422 Differential Line Transceiver suitable for high speed full-duplex data communication on multipoint bus transmission lines. The ADM4857 has dedicated differential line driver outputs and receiver inputs. The parts have 1/8-unit-load receiver input impedance, which allows up to 256 transceivers on one bus. Because 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 receiver inputs have a true fail-safe feature, which ensures a logic high output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and when communication ends. The driver outputs are slew-rate limited to reduce EMI and data errors caused by reflections from improperly terminated buses. Excessive power dissipation caused by bus contention or by output shorting is prevented with a thermal shutdown circuit.
EIA RS-485-/RS-422-compliant
10Mbps Data rate
Reduced slew rates for low EMI
True fail-safe receiver inputs
5µA Maximum supply current in shutdown mode
Up to 256 transceivers on one bus
Outputs high-Z when disabled or powered off
-7 to +12V Bus common-mode range
Thermal shutdown and short-circuit protection
Pin-compatible with the MAX308x
ESD sensitive device, take proper precaution while handling the device.

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