SI8420AD-D-ISR

Series:	Automotive, AEC-Q100
Packaging:	Tape & Reel (TR)
Part Status:	Active
Technology:	Capacitive Coupling
Type:	General Purpose
Isolated Power:	No
Number of Channels:	2
Inputs - Side 1/Side 2:	2/0
Channel Type:	Unidirectional
Voltage - Isolation:	5000Vrms
Common Mode Transient Immunity (Min):	20kV/µs
Data Rate:	1Mbps
Propagation Delay tpLH / tpHL (Max):	35ns, 35ns
Pulse Width Distortion (Max):	25ns
Rise / Fall Time (Typ):	2ns, 2ns
Voltage - Supply:	2.7 V ~ 5.5 V
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	16-SOIC (0.295", 7.50mm Width)
Supplier Device Package:	16-SOIC

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Digital Isolators

Digital isolators are electronic devices that allow signals to pass between two separate electrical circuits without any physical connection. They are used in a variety of applications to protect circuitry from high voltages and electrostatic shock as well as to ensure data integrity. The SI8420AD-D-ISR is a high speed digital isolator designed for low voltage, low power applications such as industrial and automotive control networks.

Application Fields

The SI8420AD-D-ISR is used in a variety of low voltage, low power applications. Some of the most common applications include motor control networks, communication systems, power distribution systems, and automotive networks. In these applications, this digital isolator enables signals to pass between two electronic circuits while preventing damaging high voltages and electrostatic discharges. It also ensures the integrity of data by preventing the propagation of signals between circuits.

Working Principle

The SI8420AD-D-ISR works by using a semiconductor barrier, such as an Insulated Gate Bipolar Transistor (IGBT), to form a physical barrier between two circuits. The IGBT switches on and off quickly, allowing signals to pass between the two circuits without allowing current to flow from one to the other. This also prevents propagation of noise or other signals that could disrupt the operations of the circuit.The SI8420AD-D-ISR also employs optical isolation, which uses a pair of infrared LEDs to separate the input and output signal paths. This reduces electromagnetic interference and increases signal integrity. The device also has a low-power design, which ensures that it consumes low power and provides high speed, low latency response.

Conclusion

The SI8420AD-D-ISR digital isolator provides an efficient and reliable way to transfer data between two separate electrical circuits. It uses a semiconductor barrier and optical isolation to ensure that signals do not propagate between circuits and that data remains secure. The device is designed for low voltage, low power applications such as motor control networks, communication systems, power distribution systems, and automotive networks. With its excellent response time, low power consumption, and superior signal integrity, the SI8420AD-D-ISR is an ideal choice for these applications.

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