ADUM1301ARWZ IC

Technical Specifications of ADUM1301ARWZ

Datasheet	ADUM1301ARWZ datasheet
Category	Isolators
Family	Digital Isolators
Manufacturer	Analog Devices Inc.
Series	iCoupler?
Packaging	Tube
Part Status	Active
Technology	Magnetic Coupling
Type	General Purpose
Isolated Power	No
Number of Channels	3
Inputs – Side 1/Side 2	2/1
Channel Type	Unidirectional
Voltage – Isolation	2500Vrms
Common Mode Transient Immunity (Min)	25kV/μs
Data Rate	1Mbps
Propagation Delay tpLH / tpHL (Max)	100ns, 100ns
Pulse Width Distortion (Max)	40ns
Rise / Fall Time (Typ)	2.5ns, 2.5ns
Voltage – Supply	2.7 V ~ 5.5 V
Operating Temperature	-40°C ~ 105°C
Package / Case	16-SOIC (0.295″, 7.50mm Width)
Supplier Device Package	16-SOIC

ADUM1301ARWZ General Description

The ADuM1300/ADuM13011 are iCoupler®-based triple-channel digital isolators made by Analog Devices, Inc. These isolation components outperform optocouplers because they combine high-speed complementary metal-oxide semiconductor (CMOS) and monolithic transformer technology. The notoriously difficult design problem with optocouplers is circumvented by iCoupler devices because they don’t necessitate light-emitting diodes or photodiodes. iCouplers are a great alternative to traditional optocouplers because of their straightforward digital interfaces and reliable performance. These characteristics mitigate common issues, such as fluctuating current transfer ratios, nonlinear transfer functions, and temperature and lifetime effects.

There is no requirement for additional drivers or other peripheral equipment with these iCoupler solutions. In addition, iCoupler devices consume between one-sixth and one-tenth as much energy as optocouplers do when transmitting signals at the same rates. Isolators like the ADuM1300 and ADuM1301 provide three separate channels that can be set up in various ways and have various data transfer rates (see the Ordering Guide).

All kinds can be used with a supply voltage between 2.7 V and 5.5 V, making them suitable for low-voltage systems and allowing voltage translation across the isolation wall. There is little to no pulse width distortion in the ADuM1300/ADuM1301.

Features

• Bidirectional communication.
• 3 V/5 V level translation.
• High-temperature operation: 125°C.
• High data rate: dc to 90 Mbps (NRZ).

Applications Information

● Printed Circuit Board (PCB) Layout

Analog Devices, Inc. produces the triple-channel digital isolators ADuM1300/ADuM13011 based on the iCoupler®. Because they combine high-speed complementary metal-oxide semiconductor (CMOS) and monolithic transformer technology, these isolation components perform better than optocouplers. ICoupler devices avoid the notoriously challenging design issue with optocouplers because they don’t require light-emitting diodes or photodiodes. iCouplers are an excellent replacement for conventional optocouplers due to their simple digital interfaces and dependable performance. These qualities help to reduce common problems, including varying current transfer ratios, nonlinear transfer functions, and temperature and longevity impacts.

With these iCoupler systems, no additional drivers or peripheral devices are needed. Also, while transferring signals at the same rates, iCoupler devices use one-sixth and one-tenth as little energy as optocouplers do. Three distinct channels are provided by isolators like the ADuM1300 and ADuM1301, which can be configured in a variety of ways and have a range of data transfer rates (see the Ordering Guide).

All varieties are suited for low-voltage systems and enable voltage translation across the isolation wall when supplied with a supply voltage ranging from 2.7 V to 5.5 V. The ADuM1300/ADuM1301 has very little to no pulse width distortion.

● DC Correctness And Magnetic Field Immunity

Whenever there is a positive or negative logic transition at the isolator’s input, the transformer sends a brief pulse to the decoder with a duration of around 1 ns. Due to the bistability of the decoder, depending on the state of the input logic, the pulses can either “set” or “reset” it. A series of refresh pulses showing the correct input state is given at regular intervals to ensure dc correctness at the output if there is a delay of more than 1 s between logic changes at the input. The decoder turns the isolator’s output into an inactive state if it receives no pulses from the inside for longer than 5 microseconds.

Its high magnetic field resistance distinguishes the ADuM1300/ADuM1301. The threshold at which the generated voltage in the transformer’s receiving coil is sufficient to set or reset the decoder wrongly limits the field immunity of the ADuM1300/magnetic ADuM1301. The following table breaks down the conditions under which this can happen. We concentrate on this operating scenario since it presents the greatest risk to the ADuM1300/ADuM1301.

The pulses’ amplitude at the transformer’s output is greater than 1.0 V. With a tolerance range for induced voltages of up to 0.5 V and a detection threshold for the decoder of about 0.5 V. Calculations for induced voltage across a receiving coil are as follows:

V = (−dβ/dt) ∑∏rn 2; n = 1, 2, …, N

where: β is magnetic flux density (Gauss).

N is the number of turns in the receiving coil.

rn is the radius of the nth turn in the receiving coil (cm).

● Insulation Lifetime

Any insulation structure exposed to voltage stress for a long enough time will eventually collapse. The features of the voltage waveform placed across the insulation affect how quickly the insulation degrades. Analog Devices conducts a thorough set of evaluations in addition to the testing carried out by the regulatory bodies to ascertain the lifespan of the insulation structure inside the ADuM1300/ADuM1301.\\

● Propagation Delay-Related Parameters

A propagation delay metric quantifies how long a logic signal takes to go through a component. The propagation delay to a logic low output and the propagation delay to a logic high output may differ.

A measure of how perfectly the timing of the input signal is kept is pulse width distortion, which is the largest difference between these two propagation delay values. Within a single ADuM1300/ADuM1301 component, channel-to-channel matching refers to the maximum propagation delay difference between channels. The maximum difference in propagation delay between two or more ADuM1300/ADuM1301 components working in the same environment is called propagation delay skew.

Conclusion

The ADuM1300/ADuM1301 digital isolators are a better alternative to conventional optocouplers because of their dependable and simple digital interface, reduced power consumption, and capacity to solve frequent issues. They are highly suited for various applications because of their high-temperature operation and fast data rate. They stand out from other digital isolators thanks to their special features, including bidirectional communication, 3V/5V level translation, and magnetic field immunity. Analog Devices have rigorously assessed the insulating lifetime and propagation delay-related properties of these devices, confirming their long-term dependability and durability.

If you require electronic components, ICRFQ is a dependable supplier that provides high-quality parts at competitive costs and top-notch customer support. When necessary, our team of professionals can offer technical support and assist you in selecting the best component for your needs. Please contact us immediately if you have any questions regarding the ADuM1300/ADuM1301 or any other electronic component you might need.

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