ISO7741DWR Isolators

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Digital isolators are a type of electronics component used to protect electronic circuits from electric shock. The ISO7741DWR is a high-performance dual channel differential-output isolator digital isolator that a designers can use to protect system components and to ensure that digital signals remain undisturbed. This digital isolator is specifically designed to meet the requirements of data and signal transmission with high bit rates over extended distances.

An applications field for the ISO7741DWR includes consumer and industrial systems that include any type of digital signal transmission. These include photocopiers, printers, computers, power management systems, automotive applications, industrial controllers, medical instruments, data transmission systems, digital electrical circuits, and telecommunications. This digital isolator is designed with an isolation structure that provides superior performance over different range of input/output related specifications.

The ISO7741DWR working principle relies on an innovative approach that includes input slicing, bit doubling, and signal regeneration by using charge pumps. By splitting the signal into two individual channels and rebuilding it in the receiver, data transmission is ensured without interference. This process allows the signal to remain clean, with no phase or frequency distortion, during transmission and reception. This process also ensures that the data and signal integrity is not affected by transmission distances.

The driving voltage of the ISO7741DWR is 4.5 to 5.5vDC, with a supply voltage range of 3.0 to 18vDC. The propagation delay time is 3.4ns and the bit rate is up to 25mb. The drive current is 7mA and the input/output resistance is 30 ohms. The energy loss, ESD, and isolation voltage is ± 500V. The isolation capacitance is 470pF. The open-drain output is capable of sinking 2.6mA and the operating temperature range is from -40 to 85ºC.

The ISO7741DWR is a dual-channel, high-performance digital isolator that is specifically designed to meet stringent requirements of digital signal transmission over extended distances. It works on the principle of input slicing, bit doubling, and signal regeneration which ensures that the signal remains unchanged during data transmission. With its various features and specs, this digital isolator is capable of sustaining electric shock and other interferences while minimizing energy losses and temperature fluctuations.

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