ADuM321x是采用ADI公司iCoupler® 技術的雙通道數(shù)字隔離器。這款隔離器件將高速CMOS與單芯片變壓器技術融為一體,具有優(yōu)于光耦合器等替代器件的出色性能特征。
iCoupler器件不用LED和光電二極管,因而不存在一般與光耦合器相關的設計困難。簡單的iCoupler數(shù)字接口和穩(wěn)定的性能特征,可消除光耦合器通常具有的電流傳輸比不確定、非線性傳遞函數(shù)以及溫度和使用壽命影響等問題。這些iCoupler產品不需要外部驅動器和其它分立器件。此外,在信號數(shù)據(jù)速率相當?shù)那闆r下,iCoupler器件的功耗只有光耦合器的1/10至1/6。
ADuM321x的雙通道屬于獨立式隔離通道,提供兩種配置選擇、兩種不同數(shù)據(jù)速率,最高可達10 Mbps(見訂購指南)。它們均可采用2.7 V至5.5 V電源電壓工作,與低壓系統(tǒng)兼容,并且能夠跨越隔離柵實現(xiàn)電壓轉換功能。相比ADuM3200/ ADuM3201的默認輸出高電平特性,ADuM321x隔離器具有默認輸出低電平特性。該系列器件還提供125°C溫度等級。
與ADuM120x隔離器相比,ADuM321x隔離器包含多項電路和布局改進,系統(tǒng)級IEC 61000-4-x測試(ESD、突波和浪涌)顯示其性能大大增強。對于ADuM120x或ADuM321x產品,這些測試的精度主要取決于用戶電路板或模塊的設計與布局。更多信息,請參考應用筆記AN-793:“iCoupler隔離產品的ESD/閂鎖考慮因素。”
應用
尺寸至關重要的多通道隔離
SPI接口/數(shù)據(jù)轉換器隔離
RS-232/RS-422/RS-485收發(fā)器隔離
數(shù)字現(xiàn)場總線隔離
柵極驅動接口
特點和優(yōu)勢
汽車應用版本已通過AEC-Q100認證
增強的系統(tǒng)級ESD保護性能,符合IEC 61000-4-x標準
工作溫度最高可達125°C
默認低電平輸出
8引腳窄體SOIC封裝,符合RoHS標準
低功耗運行-見數(shù)據(jù)手冊
3 V/5 V電平轉換
高數(shù)據(jù)速率:dc至10 Mbps (NRZ)
欲了解更多信息,請參考數(shù)據(jù)手冊
FEATURES
Enhanced system-level ESD performance per IEC 61000-4-x
High temperature operation: 125°C
Default low output
Narrow body, RoHS-compliant, 8-lead SOIC
Low power operation
5 V operation
1.7 mA per channel maximum at 0 Mbps to 2 Mbps
3.7 mA per channel maximum at 10 Mbps
7.0 mA per channel maximum at 25 Mbps
3 V operation
1.5 mA per channel maximum at 0 Mbps to 2 Mbps
2.5 mA per channel maximum at 10 Mbps
4.7 mA per channel maximum at 25 Mbps
3 V/5 V level translation
High data rate: dc to 25 Mbps (NRZ)
Precise timing characteristics
3 ns maximum pulse width distortion at 5 V operation
3 ns maximum channel-to-channel matching
High common-mode transient immunity: >25 kV/μs
Safety and regulatory approvals
UL recognition: 2500 V rms for 1 minute per UL 1577
CSA Component Acceptance Notice #5A
VDE certificate of conformity
DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
VIORM = 560 V peak
Qualified for automotive applications
APPLICATIONS
Size-critical multichannel isolation
SPI interface/data converter isolation
RS-232/RS-422/RS-485 transceiver isolation
Digital field bus isolation
Gate drive interfaces
Hybrid electric vehicles, battery monitor, and motor drive
**注意 & Noted:
由于批量與樣品的價格不同,網上無法統(tǒng)一注明,請您把采購型號通過郵件或客服QQ401799895發(fā)給我們,也可致電明佳達國內銷售部:0755-83957301,由客服人員為您報價;有時元件廠商價格稍許變動,本公司未能及時調整,如您覺得售價偏高,請與我們說明并適當議價;感謝支持
Because of wholesale price is different from sample price, our website cannot state. Please contact us online. As well as welcome you call us : 0755-83957301.We will offer a right price; Sometimes manufacturer's price is unstable, so we don't adjust price in time. if you feel price is a little high for you, just feel free to contact us for consultation. Thank you for your support !