ISO7842DWR

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Texas Instruments

HIGHEST ISOLATION RATING, QUAD-CHANNEL, 2/2, REINFORCED DIGITAL ISOLATOR

ISO7842DWR

Active

Texas Instruments

HIGHEST ISOLATION RATING, QUAD-CHANNEL, 2/2, REINFORCED DIGITAL ISOLATOR

Description Specifications Series Pricing CAD Documents

Description

General part information

ISO7842 Series

The ISO7842x device is a high-performance, quad-channel digital isolator with a 8000VPK isolation voltage. This device has reinforced isolation certifications according to VDE, CSA, CQC, and TUV. The isolator provides high electromagnetic immunity and low emissions at low-power consumption while isolating CMOS or LVCMOS digital I/Os. Each isolation channel has a logic input and output buffer separated by a silicon-dioxide (SiO2) insulation barrier.

This device comes with enable pins that can be used to put the respective outputs in high impedance for multi-master driving applications and to reduce power consumption. The ISO7842 device has two forward and two reverse-direction channels. If the input power or signal is lost, the default output is high for the ISO7842 device and low for the ISO7842F device. See the Device Functional Modes section for further details.

Used in conjunction with isolated power supplies, this device helps prevent noise currents on a data bus or other circuits from entering the local ground and interfering with or damaging sensitive circuitry. Through innovative chip design and layout techniques, electromagnetic compatibility of the ISO7842 device has been significantly enhanced to ease system-level ESD, EFT, surge, and emissions compliance.

Technical Specifications

Parameters and characteristics for this part

Specification	ISO7842DWR

Channel Type	Unidirectional
Common Mode Transient Immunity (Min)	100 kV/µs
Data Rate	100 Mbps
Fall Time (Typ)	1.9 ns
Inputs - Side 1	2
Inputs - Side 2	2
Isolated Power	No
Mounting Type	Surface Mount
Number of Channels	4
Operating Temperature (Max)	125 °C
Operating Temperature (Min)	-55 °C
Package Length	0.295 in
Package Name	16-SOIC
Package Width	7.5 mm
Propagation Delay tpHL (Max)	16 ns
Propagation Delay tpLH (Max)	16 ns
Pulse Width Distortion (Max)	4.1 ns
Rise Time (Typ)	1.7 ns
Technology	Capacitive Coupling
Type	General Purpose
Voltage - Isolation	5.7 kV
Voltage - Supply (Maximum)	5.5 V
Voltage - Supply (Minimum)	2.25 V

ISO7842 Series

Part	Type	Voltage - Supply (Maximum)	Voltage - Supply (Minimum)	Technology	Data Rate	Operating Temperature (Max)	Operating Temperature (Min)	Inputs - Side 2	Inputs - Side 1	Propagation Delay tpLH (Max)	Propagation Delay tpHL (Max)	Package Name	Isolated Power	Common Mode Transient Immunity (Min)	Voltage - Isolation	Package Length	Package Width	Channel Type	Number of Channels	Pulse Width Distortion (Max)	Mounting Type	Fall Time (Typ)	Rise Time (Typ)	Supplied Contents	Primary Attributes	Utilized IC / Part	Function	Contents
Texas Instruments ISO7842DW	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.295 in	7.5 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842FDWW	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.551 in	14 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842FDWWR	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.551 in	14 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842DWWR	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.551 in	14 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842DWW	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.551 in	14 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842FDWR	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.295 in	7.5 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842-EVM	Interface																							Board(s)	4-Channel (Quad)	ISO7842	Digital Isolator	Board
Texas Instruments ISO7842DWR	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.295 in	7.5 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns
Texas Instruments ISO7842FDW	General Purpose	5.5 V	2.25 V	Capacitive Coupling	100 Mbps	125 °C	-55 °C	2	2	16 ns	16 ns	16-SOIC	No	100 kV/µs	5.7 kV	0.295 in	7.5 mm	Unidirectional	4	4.1 ns	Surface Mount	1.9 ns	1.7 ns