EVAL-ADM2491EEBZ開發(fā)板套件編程器的評估演示板及套件規(guī)格書PDF中文資料

EVAL-ADM2491EEBZ屬于開發(fā)板套件編程器的評估演示板及套件。由亞德諾半導(dǎo)體技術(shù)有限公司制造生產(chǎn)的EVAL-ADM2491EEBZ評估和演示板及套件該系列產(chǎn)品提供了一種方便的方法，在經(jīng)過驗(yàn)證的實(shí)施環(huán)境中評估某些重點(diǎn)器件的性能或特性。評估方法通常有完善的文檔說明，并且視乎具體情況由評估軟件提供支持。產(chǎn)品通常由印刷電路板組成，板上已裝有重點(diǎn)器件以及必要或有用的支持元器件，另外也可能包括其他組件，例如電纜或電源。對于數(shù)量特別多或類別獨(dú)特的器件類別(如 ADC、DAC 和開關(guān)模式電源)，評估平臺可組合為一個單獨(dú)的產(chǎn)品系列。

GENERAL DESCRIPTION

The ADM2491E is an isolated data transceiver with ±8 kV ESD protection and is suitable for high speed, half- or full-duplex communication on multipoint transmission lines. For half-

duplex operation, the transmitter outputs and the receiver

inputs share the same transmission line. Transmitter output Pin Y is linked externally to receiver input Pin A, and transmit-

ter output Pin Z is linked to receiver input Pin B. The ADM2491E is designed for balanced transmission lines

and complies with ANSI TIA/EIA RS-485-A-1998 and ISO

8482: 1987(E). The device employs Analog Devices, Inc.,

iCoupler? technology to combine a 3-channel isolator, a three-

state differential line driver, and a differential input receiver into

a single package.

The differential transmitter outputs and receiver inputs feature

electrostatic discharge circuitry that provides protection to ±8 kV using the human body model (HBM). The logic side of the device can be powered with either a 5 V or a 3.3 V supply,

whereas the bus side requires an isolated 5 V supply.

The device has current-limiting and thermal shutdown features

to protect against output short circuits and situations in which

bus contention could cause excessive power dissipation. The ADM2491E is available in a wide body, 16-lead SOIC package

and operates over the ?40°C to +85°C temperature range.

FEATURES Isolated, RS-485/RS-422 transceiver, configurable as half- or

full-duplex ±8 kV ESD protection on RS-485 input/output pins

16 Mbps data rate

Complies with ANSI TIA/EIA RS-485-A-1998 and ISO 8482: 1987(E)

Suitable for 5 V or 3.3 V operation (VDD1)

High common-mode transient immunity: >25 kV/μs

Receiver has open-circuit, fail-safe design

32 nodes on the bus Thermal shutdown protection Safety and regulatory approvals UL recognition: 5000 V rms isolation voltage for 1 minute, per UL 1577

VDE certificate of conformity DIN V VDE V 0884-10 (VDE V 0884-10): 2006-12

Reinforced insulation, VIORM = 849 V peak Operating temperature range: ?40°C to +85°C

Wide body, 16-lead SOIC package

APPLICATIONS

Isolated RS-485/RS-422 interfaces

Industrial field networks INTERBUS

Multipoint data transmission systems