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| 型號(hào)： | ADM2486BRWZ |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 通用總線功能 |
| 英文描述： | High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver |
| 中文描述： | LINE TRANSCEIVER, PDSO16 |
| 封裝： | LEAD FREE, MS013AA, SOIC-16 |
| 文件頁(yè)數(shù)： | 1/20頁(yè) |
| 文件大小： | 294K |
| 代理商： | ADM2486BRWZ |
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High Speed, Half-Duplex iCoupler
Isolated RS-485 Transceiver
ADM2486
Rev. C
Information furnished by Analog Devices is believed to be accurate and reliable.
However, no responsibility is assumed by Analog Devices for its use, nor for any
infringements of patents or other rights of third parties that may result from its use.
Specifications subject to change without notice. No license is granted by implication
or otherwise under any patent or patent rights of Analog Devices. Trademarks and
registered trademarks are the property of their respective owners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
Fax: 781.461.3113
2005 Analog Devices, Inc. All rights reserved.
FEATURES
Half-duplex, isolated RS-485 transceiver
PROFIBUS-compliant
ANSI EIA/TIA 485-A and ISO 8482: 1987(E) compliant
20 Mbps data rate
5 V or 3 V operation (VDD1)
High common-mode transient immunity: >25 kV/μs
Isolated DE status output
Receiver open-circuit, fail-safe design
Thermal shutdown protection
50 nodes on bus
Safety and regulatory approvals
UL recognition—2500 Vrms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE Certificate of Conformity
DIN EN 60747-5-2 (VDE 0884 Part 2): 2003-01
DIN EN 60950 (VDE 0805): 2001-12; EN 60950: 2000
VIORM = 560 V peak
Operating temperature range: 40°C to +85°C
Wide body, 16-lead SOIC package
APPLICATIONS
Isolated RS-485/RS-422 interfaces
PROFIBUS networks
Industrial field networks
Multipoint data transmission systems
GENERAL DESCRIPTION
The ADM2486 differential bus transceiver is an integrated,
galvanically isolated component designed for bidirectional
data communication on multipoint bus transmission lines. It
is designed for balanced transmission lines and complies with
ANSI EIA/TIA-485-A and ISO 8482: 1987(E).
FUNCTIONAL BLOCK DIAGRAM
RTS
VDD1
DE
GND1
A
B
VDD2
GND2
GALV
ANIC
IS
OLATION
LOGIC
SIDE
TxD
RxD
BUS
S
IDE
04604-001
RE
PV
ADM2486
Figure 1.
The device employs Analog Devices’ iCoupler technology to
combine a 3-channel isolator, a three-state differential line
driver, and a differential input receiver into a single package.
The logic side of the device is powered with either a 5 V or a
3 V supply, and the bus side uses an isolated 5 V supply.
The ADM2486 driver has an active-high enable feature. The
driver differential outputs and the receiver differential inputs
are connected internally to form a differential input/output port
that imposes minimal loading on the bus when the driver is
disabled or when VDD1 or VDD2 = 0 V. Also provided is an active-
high receiver disable feature that causes the receive output to
enter a high impedance state.
The device has current-limiting and thermal shutdown features
to protect against output short circuits and situations where bus
contention might cause excessive power dissipation. The part is
fully specified over the industrial temperature range and is
available in a 16-lead, wide body SOIC package.
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| ADM2487EBRWZ | 功能描述:IC TXRX RS485 ISO W/ESD 16SOIC RoHS:是 類別:集成電路 (IC) >> 接口 - 驅(qū)動(dòng)器，接收器，收發(fā)器 系列:- 產(chǎn)品培訓(xùn)模塊:RS-232 & USB Transceiver 標(biāo)準(zhǔn)包裝:2,000 系列:- 類型:收發(fā)器 驅(qū)動(dòng)器/接收器數(shù):1/1 規(guī)程:RS232 電源電壓:3 V ~ 5.5 V 安裝類型:表面貼裝 封裝/外殼:16-SSOP（0.209"，5.30mm 寬） 供應(yīng)商設(shè)備封裝:16-SSOP 包裝:帶卷 (TR) 其它名稱:296-19849-2 |
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