ISO7763FDBQR Isolators

Common Mode Transient Immunity (Min):	85kV/µs
Supplier Device Package:	16-SSOP
Package / Case:	16-SSOP (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-55°C ~ 125°C
Voltage - Supply:	2.25 V ~ 5.5 V
Rise / Fall Time (Typ):	1.1ns, 1.4ns
Pulse Width Distortion (Max):	4.9ns
Propagation Delay tpLH / tpHL (Max):	16ns, 16ns
Data Rate:	100Mbps
Series:	--
Voltage - Isolation:	3000Vrms
Channel Type:	Unidirectional
Inputs - Side 1/Side 2:	3/3
Number of Channels:	6
Isolated Power:	No
Type:	General Purpose
Technology:	Capacitive Coupling
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Digital Isolators

Digital isolators are typically used in telecommunications, medical equipment, automotive, and industrial applications to reduce interference from external signals. An isolated signal is one that has no electrical connection between the source and the device receiving the signal and is often achieved by means of capacitors or transformers. The ISO7763FDBQR is a 4-channel isolator that provides galvanic isolation for digital signals, using capacitive coupling.

ISO7763FDBQR Application Field

The ISO7763FDBQR isolator can be used in applications that require digital signal isolation. It is particularly suitable for use with signals that need to be converted without introducing any noise into the system. Common application areas include industrial communications (such as CAN, Level Trigger, and Modbus), automotive systems, metering, process control, and other industrial applications that require noise suppression.

ISO7763FDBQR Working Principle

The ISO7763FDBQR isolator uses a capacitive coupling technique to achieve signal isolation. This technique uses the electric field between two conductors to transfer a signal from one side to the other, while preventing any electrical current from flowing between them. The isolator has two parts: a transmitter, which has a loop around its package, and a receiver, which has its own loop. The electric field created by the transmitter loop is then transferred to the receiver loop, where it is converted into a digital signal.The ISO7763FDBQR has four channels, each of which is composed of a transmitter and a receiver. When a high signal is sent to one of the receivers, it will turn on the corresponding transmitter in the other channel, resulting in a low signal, creating a digital signal between the two channels. The digital isolator also features signal conditioning circuits for noise suppression, ensuring that the transmitted signal is noise-free and of the highest quality.

Conclusion

The ISO7763FDBQR digital isolator is a powerful tool for applications that require signal isolation. It features four channels, which are capable of performing digital signal conversion without introducing any noise into the system. The isolator’s capacitive coupling technique allows it to transmit signals from one side to the other without any electrical connection between the source and the receiver and features signal conditioning circuits for noise suppression. This makes it an ideal choice for noise reduction and digital signal isolation in a wide range of applications.

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