Analog Devices Inc. ADuM22xN 双通道数字隔离器

Analog Devices ADuM220N/ADuM221N/ADuM225N/ADuM226N 双通道数字隔离器具有最大 13ns 传播延迟，在 5V 工作电压时脉冲宽度失真 (PWD) 小于 3ns。该隔离器具有 100kV/µs 共模瞬态抑制和最大 3.0ns 的严格通道匹配。这些数据通道是相互独立的，可提供多种配置选择。这些数据通道具有 150Mbps 最大数据速率，可承受 5.0kVrms 的电压额定值。 ADuM220N/ADuM221N/ADuM225N/ADuM226N 隔离器可在 1.8V 至 5V 电源电压的任一侧工作。这种可在电源电压任一侧工作的能力不仅能够跨越隔离栅实现电压转换功能，还能与低压系统兼容。基于 iCoupler® 技术，ADuM220N/ADuM221N/ADuM225N/ADuM226N 隔离器可确保不存在输入逻辑转换时的直流正确性。此外，这些隔离器具有两个不同的故障安全选项。在未提供输入电源或者输入被禁用时，这些故障安全选项可使输出转换为预定的状态。

The ADuM220N/ADuM221N/ADuM225N/ADuM226N isolators operate on either side of a supply voltage ranging from 1.8V to 5V. The capability to operate on either side of the supply voltage enables voltage translation functionality across the isolation barrier and compatibility with lower voltage systems.

Based on iCoupler® technology, the ADuM220N/ADuM221N/ADuM225N/ADuM226N isolators ensure DC correctness in the absence of input logic transitions. Additionally, the isolators feature two different fail-safe options. The fail-safe options allow the outputs to transition to a predetermined state when the input power supply is not applied or the inputs are disabled.

特性

High common-mode transient immunity: 100kV/μs
High robustness to radiated and conducted noise
150Mbps maximum data rate
Safety and regulatory approvals (pending)
- UL recognition: 5000Vrms for 1 minute per UL 1577CSA
- Component Acceptance Notice 5A
- VDE certificate of conformity
  - DIN V VDE V 0884-10 (VDE V 0884-10):2006-12
  - VIORM = 849V peak
  - 10000V peak surge/impulse voltage rating
- CQC Certification per GB4943.1-2011

Low propagation delay: 13ns maximum for 5V operation, 15ns maximum for 1.8V operation
Backward compatible
Low dynamic power consumption
1.8V to 5V level translation
High-temperature operation: 125°C maximum
Fail-safe high or low options
8-lead/16-lead, RoHS compliant SOIC packages