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接口 IC 數字隔離器 Analog Devices ADM2483BRWZ

發布企業:深圳市恒達億科技有限公司日期:2021/1/28 10:47:59
摘要: 數字隔離器 Isolator RS-485 Transceiver I.C.

ADM2483BRWZ

接口 IC

制造商: Analog Devices Inc.

產品種類: 數字隔離器

RoHS: 詳細信息

安裝風格: SMD/SMT

封裝 / 箱體: SOIC-16

系列: ADM2483

通道數量: 1 Channel

絕緣電壓: 2.5 kVrms

隔離類型: Magnetic Coupling

數據速率: 500 kb/s

電源電壓-最大: 5.5 V

電源電壓-最小: 2.7 V

工作電源電流: 2.5 mA

最小工作溫度: - 40 C

最大工作溫度: + 85 C

封裝: Tube

產品: Digital Isolators

電源類型: Dual

類型: RS-485 Isolated Transceiver

商標: Analog Devices

關閉: No Shutdown

開發套件: EVAL-ADM2483EBZ

雙工: Half Duplex

工作電源電壓: 5 V

產品類型: Digital Isolators

支持協議: RS-485

工廠包裝數量: 47

子類別: Interface ICs

單位重量: 666 mg

ADM2483差分總線收發器是一個集成的、電隔離的組件,用于平衡多點總線傳輸線上的雙向數據通信。它符合ANSI EIA/TIA-485-A和ISO 8482:1987(E)標準。ADM2483采用模擬設備的I耦合器技術,將一個3通道隔離器、一個三態差分線路驅動器和一個差分輸入接收器組合成一個包。設備的邏輯側由5 V或3 V電源供電,總線側僅使用5 V電源。ADM2483進行了旋轉限制,以減少傳輸線端接不當時的反射??刂频霓D換速率將數據速率限制在500kbps。該設備的輸入阻抗為96k?,允許總線上最多256個收發器。它的驅動程序具有激活的高啟用功能。驅動器差分輸出和接收器差分輸入在內部連接以形成差分輸入/輸出端口。當驅動器被禁用或當VDD1或VDD2=0 V時,這會對總線施加最小負載。還提供了使接收輸出進入高阻抗狀態的有源高接收機禁用特性。接收器輸入具有真正的故障安全特性,確保當輸入開路或短路時接收器輸出電平為邏輯高。這保證了接收機輸出在通信開始之前和通信結束時處于已知狀態。電流限制和熱關機功能可防止輸出短路和總線爭用情況,這些情況可能導致過度功耗。該部件在工業溫度范圍內完全指定,并提供16引線、寬體SOIC封裝。

The ADM2483 differenTIal bus transceiver is an integrated, galvanically isolated component designed for bidirecTIonal data communicaTIon on balanced, mulTIpoint bus transmission lines. It complies with ANSI EIA/TIA-485-A and_ISO 8482: 1987(E)。 Using Analog Devices’ iCoupler technology, the ADM2483 combines 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 3 V supply, and_the bus side uses a 5 V supply only. The ADM2483 is slew-limited to reduce reflections with improperly terminated transmission lines. The controlled slew rate limits the data rate to 500 kbps. The device’s input impedance is 96 k?, allowing up to 256 transceivers on the bus. Its driver has an active-high enable feature. The driver differential outputs and_receiver differential inputs are connected internally to form a differential I/O port. When the driver is disabled or when VDD1 or VDD2 = 0 V, this imposes minimal loading on the bus. An active-high receiver disable feature, which causes the receive output to enter a high impedance state, is provided as well. The receiver inputs have a true fail-safe feature that ensures a logic-high receiver output level when the inputs are open or shorted. This guarantees that the receiver outputs are in a known state before communication begins and_at the point when communication ends. Current limiting and_thermal shutdown features protect against output short circuits and_bus contention situations that 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.

聯系方式

公司:深圳市恒達億科技有限公司 查看聯系方式 留言

聯系人:夏先生/朱小姐(公司為一般納稅人,可開增票)

手機:13652352591/13691861306

電話:0755-82723761/82772189

傳真:0755-82737687

地址:深圳市福田區華強北上步工業區101棟西616室

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