ADM1491EBRMZ - ADI

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

Part No

ADM1491EBRMZ
Manufacturer

ADI
ChipWorker Part#

CW663323
Category

Interface IC, Interface Controller
Package

MSOP-10
Description

ANALOG DEVICES ADM1491EBRMZ RS485 Transceiver RS232, RS485, 4.75V-5.25V supply, 1 Driver, MSOP-10
Documentation

Datasheet

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ADM1491EBRMZ Specifications

Attribute	Attribute Value

Part Number	ADM1491EBRMZ
Manufacturer	ADI
ChipWorker Part#	CW663323
Category	Interface IC, Interface Controller
Documentation	Datasheet
Mounting Style	Surface Mount
Number of Pins	10 Pin
Case/Package	MSOP-10
Supply Voltage (DC)	4.75V (min)
Supply Current	2 mA
Number of Positions	10 Position
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	3 mm
Size-Width	3 mm
Size-Height	0.85 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

Product Details
The ADM1490E/ADM1491E are RS-485 transceivers with ±8 kV ESD protection and is suitable for high speed, full-duplex communication on multipoint transmission lines. In particular, the ADM1491E is designed for use in motor control applications requiring communications at data rates up to 16 Mbps.
The ADM1491E is designed for balanced transmission lines and complies with TIA/EIA-485-A-98. The device has a 12 kΩ receiver input impedance for unit load RS-485 operation allowing up to 32 nodes on the bus.
The differential transmitter outputs and receiver inputs feature electrostatic discharge circuitry that provides protection to ±8 kV using the human body model (HBM).
The ADM1491E operates from a single 5 V power supply. Excessive power dissipation caused by bus contention or output shorting is prevented by short-circuit protection and thermal circuitry.
Short-circuit protection circuits limit the maximum output current to ±250 mA during fault conditions. A thermal shutdown circuit senses if the die temperature rises above 150°C and forces the driver outputs into a high impedance state under this condition.
The receiver of the ADM1491E contains a fail-safe feature that results in a logic high output state if the inputs are unconnected (floating).
The ADM1491E features extremely fast and closely matched switching times. Minimal driver propagation delays permit transmission at data rates up to 16 Mbps while low skew minimizes EMI interference.
The ADM1491E is fully specified over the commercial and industrial temperature ranges and is available in two packages: a narrow-body 14-lead SOIC and a 10-lead MSOP.
**APPLICATIONS**
RS-485/RS-422 interfaces
Industrial field networks
High data rate motor controlv
Multipoint data transmission systems
Single-ended to differential signal conversion
### Features and Benefits
RS-485/RS-422 full duplex transceiver, for high speed motor control applications
16 Mbps data rate
±8 kV ESD protection on RS-485 input/output pins
Complies with ANSI/TIA/EIA-485-A-1998
Open circuit fail-safe
Suitable for 5 V power supply applications
32 nodes on the bus (1 unit load)
Thermal shutdown protection
Operating temperature range: −40°C to +85°C
Packages
Narrow-body 14-lead SOIC
10-lead MSOP

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