ADI公司的ADuM540x系列是單向5路iCoupler" title="iCoupler">iCoupler數字隔離器" title="數字隔離器">數字隔離器,隔離電壓高達1kV,和光耦合器相比,具有優異的性能,每邊的工作電壓4.5 V到5.5 V,數據速率高達10Mbps(NRZ),工作溫度高達105 度C,主要用在通用的單向多路數據隔離．本文介紹了ADuM75101主要特性，功能方框圖和支持ADuM130x，ADuM131x，ADuM140x，ADuM141x，ADuM1510，ADuM240x，ADuM330x，ADuM340x，ADuM344x，ADuM440x，ADuM5000，ADuM520x，ADuM540x，ADuM6000，ADuM620x，ADuM640x，ADuM744x和ADuM7510的iCoupler評估板EVAL-ADuMQSEBZ主要特性，電路圖和材料清單．
The ADuM75101 is a unidirectional 5-channel isolator based on the Analog Devices, Inc., iCoupler® technology. In contrast to the ADuM1510, the ADuM7510 has a lower isolation ratingoffering a reduced cost option for applications that can accept a 1 kV ac isolation. Combining high speed CMOS and monolithic air core transformer technology, these isolation components provide outstanding performance characteristics superior to alternatives such as optocoupler devices.
By avoiding the use of LEDs and photodiodes, iCoupler devices eliminate the design difficulties commonly associated with optocouplers. The typical optocoupler concerns regarding uncertain current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects are eliminated with the simple iCoupler digital interfaces and stable performance characteristics. The need for external drivers and other discrete components is eliminated with these iCoupler products. Furthermore, iCoupler devices run at one-tenth to one-sixth the power consumption of optocouplers at comparable signal data rates.
The ADuM7510 isolator provides five independent isolation channels supporting data rates up to 10 Mbps. Each side operates with the supply voltage of 4.5 V to 5.5 V. Unlike other optocoupler alternatives, the ADuM7510 isolator has a patented refresh feature that ensures dc correctness in the absence of input logic transitions and during power-up/power-down conditions.
ADuM75101主要特性:
RoHS-compliant, 16-lead, QSOP package
Low power operation: 5 V
1.2 mA per channel maximum @ 0 Mbps to 2 Mbps
2.8 mA per channel maximum @ 10 Mbps
High temperature operation: 105°C
Up to 10 Mbps data rate (NRZ)
Low default output state
1000 V rms isolation rating
Safety and regulatory approvals (pending)
UL recognition
1000 V rms for 1 minute per UL 1577
ADuM75101應用:
General-purpose, unidirectional, multichannel isolation
圖1.ADuM75101功能方框圖
iCoupler評估板EVAL-ADuMQSEBZ
The EVAL-ADuMQSEBZ can be used with most Coupler® isolation products in the 16-lead, wide-body SOIC and QSOP packages. The evaluation board supports the common pad positions for power, ground, and I/O pins found in nearly all of the Coupler products and is a configurable board that can be adapted to many Coupler products.
評估板EVAL-ADuMQSEBZ支持的iCoupler模塊:
ADuM130x ,ADuM131x ,ADuM140x ,ADuM141x ,ADuM1510 ,ADuM240x ,ADuM330x
ADuM340x ,ADuM344x ,ADuM440x ,ADuM5000 ,ADuM520x ,ADuM540x ,ADuM6000
ADuM620x ,ADuM640x ,ADuM744x ,ADuM7510
評估板EVAL-ADuMQSEBZ主要特性:
Convenient connections for power through screw terminal blocks
Add-on BNC connector for 50 Ω signal sources
On-board signal routing
Support for signal wrap back
Simple signal paths to reduce transmission line effects
Pull-up and pull-down provided for control lines
Support for isoPower
Project area that supports surface-mount and through-hole devices
圖2. 評估板EVAL-ADuMQSEBZ外形圖
圖3. 評估板EVAL-ADuMQSEBZ電路圖
評估板EVAL-ADuMQSEBZ材料清單(BOM):
詳情請見:
http://www.analog.com/static/imported-files/data_sheets/ADuM7510.pdf
和
http://www.analog.com/static/imported-files/user_guides/UG-042.pdf
