ADUM2281ARIZ

Common Mode Transient Immunity (Min):	25kV/µs
Base Part Number:	ADUM2281
Supplier Device Package:	16-SOIC-IC
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 125°C
Voltage - Supply:	2.7 V ~ 5.5 V
Rise / Fall Time (Typ):	2.5ns, 2.5ns
Pulse Width Distortion (Max):	10ns
Propagation Delay tpLH / tpHL (Max):	50ns, 50ns
Data Rate:	1Mbps
Series:	iCoupler®
Voltage - Isolation:	5000Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	1/1
Number of Channels:	2
Isolated Power:	No
Type:	General Purpose
Technology:	Magnetic Coupling
Part Status:	Active
Packaging:	Tube

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Digital Isolators: ADUM2281ARIZ

Digital Isolators are devices used to transfer data between two circuits in the presence of high levels of signal noise. The ADUM2281ARIZ is a Pulse-Width-Modulation (PWM) digital isolator, which transmits data between two circuits using PWM electromagnetic signals. It is a high-performance, galvanically isolated solution that ensures data safety and reliability.The ADUM2281ARIZ can be used in a variety of applications, including automotive control, medical equipment, industrial automation, and telecom. It is designed to provide exceptional signal and data isolation while keeping power dissipation to a minimum. The device offers outstanding electrical performance, robustness, and accuracy. This makes it the perfect choice for applications requiring high data transmission rates in noisy environments.The ADUM2281ARIZ has two sections: the PWM modulator and the pulse width discriminator. The modulator converts the input data into a PWM signal, while the discriminator receives the signal and converts it back into digital data. The modulator takes the place of a transmit amplifier, while the discriminator eliminates the need for a receive amplifier. The modulator is also responsible for adjusting the gain of the output signal to ensure correct data transmission.The modulator is capable of operating in both single-ended or differential input modes. This means it can accept voltage or current inputs, as long as they are within its operating range. The differential option reduces interference levels, while the single-ended option is useful for applications with a low cost of ownership.The ADUM2281ARIZ is powered via a single 3.3V or 5V supply, and is isolated up to ±45V. The device has excellent common-mode noise rejection capabilities and is rated for operation from –40 to +105 °C. It is also RoHS compliant and has minimal component count, making it easier to integrate into compact designs.To ensure the fidelity of the data transmission, the ADUM2281ARIZ offers built-in protection against transient electrical noise. The device also provides pre-emphasis and de-emphasis, allowing it to transmit data with fewer errors in noisy environments. In addition, the device can be modified to include features such as a selectable filter bandwidth, adjustable gain, and adjustable threshold level.The ADUM2281ARIZ is available in a small, 6-pin DIP housing, making it ideal for compact designs. Its integrated transformer enables the device to isolate input and output signals from each other, helping it meet requirements for data safety and reliability. All of these features make the ADUM2281ARIZ an ideal choice for applications requiring robust data isolation.

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