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| 型号： | ADM2485BRWZ-REEL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 1/20页 |
| 文件大小： | 0K |
| 描述： | IC TXRX ISOLATED RS-485 16SOIC |
| 产品培训模块： | iCoupler Digital Isolater Technology |
| 设计资源： | Half-Duplex, Isolated RS-485 Interface (CN0031) |
| 标准包装： | 1 |
| 系列： | * |
| 其它名称： | ADM2485BRWZ-REEL7DKR |
High Speed, Isolated RS-485 Transceiver
with Integrated Transformer Driver
ADM2485
Rev. A
Information furnished by Analog Devices is believed to be accurate and reliable. However, no
responsibilityis assumedbyAnalogDevicesforitsuse,norforanyinfringements of patents or other
rightsofthirdpartiesthatmayresultfromitsuse.Specificationssubjecttochangewithoutnotice.No
license is granted by implication or otherwise under any patent or patent rights of Analog Devices.
Trademarksandregisteredtrademarksarethepropertyoftheirrespectiveowners.
One Technology Way, P.O. Box 9106, Norwood, MA 02062-9106, U.S.A.
Tel: 781.329.4700
www.analog.com
Fax: 781.461.3113
2007 Analog Devices, Inc. All rights reserved.
FEATURES
Half-duplex, isolated RS-485 transceiver
Integrated oscillator driver for external transformer
PROFIBUS compliant
Complies with ANSI/TIA/EIA RS-485-A-98 and
ISO 8482:1987(E)
Data rate: 16 Mbps
5 V or 3.3 V operation (VDD1)
50 nodes on bus
High common-mode transient immunity: >25 kV/μs
Isolated DE OUT status output
Thermal shutdown protection
Safety and regulatory approvals
UL recognition: 2500 V rms 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 = 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
FUNCTIONAL BLOCK DIAGRAM
RTS
VDD1
DE OUT
GND1
A
B
VDD2
GND2
G
A
L
V
ANI
C
I
S
O
L
A
T
IO
N
D1
D2
TxD
RxD
RE
ADM2485
OSC
06
02
1-
00
1
Figure 1.
GENERAL DESCRIPTION
The ADM2485 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/TIA/EIA RS-485-A-98 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. An
on-chip oscillator outputs a pair of square waveforms that drive
an external transformer to provide isolated power with an external
transformer. The logic side of the device can be powered with
either a 5 V or a 3.3 V supply, and the bus side is powered with
an isolated 5 V supply.
The ADM2485 driver has an active high enable. 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 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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相关代理商/技术参数 |
参数描述 |
|---|---|
| ADM2486 | 制造商:AD 制造商全称:Analog Devices 功能描述:High Speed, Half-Duplex iCoupler Isolated RS-485 Transceiver |
| ADM2486BRW | 功能描述:IC TXRX RS-485 ISOLATED 16-SOIC RoHS:否 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:iCoupler® 标准包装:250 系列:- 类型:收发器 驱动器/接收器数:2/2 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:16-TSSOP 包装:带卷 (TR) |
| ADM2486BRW-REEL | 制造商:Analog Devices 功能描述:Single Transmitter/Receiver RS-485 16-Pin SOIC W T/R 制造商:Analog Devices 功能描述:LINE TRNSCVR 1TR 1TX 1RX 16SOIC W - Tape and Reel |
| ADM2486BRWZ | 功能描述:IC TXRX RS-485 ISOLATED 16-SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:iCoupler® 产品培训模块:RS-232 & USB Transceiver 标准包装:2,000 系列:- 类型:收发器 驱动器/接收器数:1/1 规程:RS232 电源电压:3 V ~ 5.5 V 安装类型:表面贴装 封装/外壳:16-SSOP（0.209"，5.30mm 宽） 供应商设备封装:16-SSOP 包装:带卷 (TR) 其它名称:296-19849-2 |
| ADM2486BRWZ-REEL | 功能描述:IC TXRX RS-485 ISOLATED 16SOIC RoHS:是 类别:集成电路 (IC) >> 接口 - 驱动器，接收器，收发器 系列:iCoupler® 标准包装:27 系列:- 类型:收发器 驱动器/接收器数:3/3 规程:RS232，RS485 电源电压:4.75 V ~ 5.25 V 安装类型:表面贴装 封装/外壳:28-SOIC（0.295"，7.50mm 宽） 供应商设备封装:28-SOIC 包装:管件 |
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