ISO7421E-Q1 Series

Dual-channel, 1/1, 50-Mbps, default output low digital isolator

Catalog

Dual-channel, 1/1, 50-Mbps, default output low digital isolator

Part	Mounting Type	Technology	Voltage - Isolation	Propagation Delay tpLH / tpHL (Max) [Max] [x]	Propagation Delay tpLH / tpHL (Max) [Max] [y]	Data Rate	Number of Channels [custom]	Type	Common Mode Transient Immunity (Min) [Min]	Operating Temperature [Min]	Operating Temperature [Max]	Supplier Device Package	Package / Case	Package / Case [y]	Package / Case [x]	Inputs - Side 1/Side 2	Rise / Fall Time (Typ) [custom]	Rise / Fall Time (Typ) [custom]	Pulse Width Distortion (Max) [Max]	Channel Type	Voltage - Supply [Min]	Voltage - Supply [Max]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Propagation Delay tpLH / tpHL (Max) [Max] [custom]	Pulse Width Distortion (Max) [Max] [x]	Qualification	Grade
Texas Instruments ISO7421DR	Surface Mount	Capacitive Coupling	2500 Vrms	14 ns	14 ns	1 Mbps	2	General Purpose	25 kV/µs	-40 °C	105 ░C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1 ns	1 ns	3.7 ns	Unidirectional	3.15 V 4.75 V	3.45 V 5.25 V
Texas Instruments ISO7421ED	Surface Mount	Capacitive Coupling	2500 Vrms			50 Mbps	2	General Purpose	25 kV/µs	-40 °C	125 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1.8 ns	1.7 ns	3.7 ns	Unidirectional	3 V	5.5 V	11 ns	11 ns
Texas Instruments ISO7421MDREP	Surface Mount	Capacitive Coupling	2500 Vrms	14 ns	14 ns	1 Mbps	2	General Purpose	25 kV/µs	-55 °C	125 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1 ns	1 ns		Unidirectional	3 V 4.5 V	3.6 V 5.5 V			4 ns
Texas Instruments ISO7421D	Surface Mount	Capacitive Coupling	2500 Vrms	14 ns	14 ns	1 Mbps	2	General Purpose	25 kV/µs	-40 °C	105 ░C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1 ns	1 ns	3.7 ns	Unidirectional	3.15 V 4.75 V	3.45 V 5.25 V
Texas Instruments ISO7421FED	Surface Mount	Capacitive Coupling	2500 Vrms			50 Mbps	2	General Purpose	25 kV/µs	-40 °C	125 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1.8 ns	1.7 ns	3.7 ns	Unidirectional	3 V	5.5 V	11 ns	11 ns
Texas Instruments ISO7421EQDWRQ1	Surface Mount	Capacitive Coupling	2500 Vrms	14 ns	14 ns	50 Mbps	2	General Purpose	25 kV/µs	-40 °C	125 °C	16-SOIC	16-SOIC	7.5 mm	0.295 in	1/1	1 ns	1 ns	3.7 ns	Unidirectional	3.15 V 4.75 V	3.45 V 5.25 V				AEC-Q100	Automotive
Texas Instruments ISO7421QDRQ1	Surface Mount	Capacitive Coupling	2500 Vrms	14 ns	14 ns	1 Mbps	2	General Purpose	25 kV/µs	-40 °C	125 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1 ns	1 ns	3.7 ns	Unidirectional	3.15 V 4.75 V	3.45 V 5.25 V
Texas Instruments ISO7421EDR	Surface Mount	Capacitive Coupling	2500 Vrms			50 Mbps	2	General Purpose	25 kV/µs	-40 °C	125 °C	8-SOIC	8-SOIC	3.9 mm	0.154 in	1/1	1.8 ns	1.7 ns	3.7 ns	Unidirectional	3 V	5.5 V	11 ns	11 ns

Catalog

Dual-channel, 1/1, 50-Mbps, default output low digital isolator

Key Features

• Signaling Rate > 50 MbpsDefault Output 'High' and 'Low' OptionsLow Power Consumption: Typical ICCper Channel (3.3-V Supplies):ISO7420: 1.4 mA at 1 Mbps, 2.5 mA at 25 MbpsISO7421: 1.8 mA at 1 Mbps, 2.8 mA at 25 MbpsLow Propagation Delay: 7 ns TypicalLow Pulse Skew: 200 ps TypicalWide TARange Specified: –40°C to 125°C50-KV/μs Transient Immunity, TypicalIsolation Barrier Life: > 25 YearsOperates from 3-V to 5.5-V Supply Levels3.3-V and 5-V Level TranslationNarrow Body SOIC-8 PackageSafety and Regulatory Approvals:4242 VPKIsolation per DIN V VDE V 0884-10 and DIN EN 61010-12500 VRMSIsolation for 1 minute per UL 1577CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 StandardsCQC Certification per GB4943.1-2011All trademarks are the property of their respective owners.Signaling Rate > 50 MbpsDefault Output 'High' and 'Low' OptionsLow Power Consumption: Typical ICCper Channel (3.3-V Supplies):ISO7420: 1.4 mA at 1 Mbps, 2.5 mA at 25 MbpsISO7421: 1.8 mA at 1 Mbps, 2.8 mA at 25 MbpsLow Propagation Delay: 7 ns TypicalLow Pulse Skew: 200 ps TypicalWide TARange Specified: –40°C to 125°C50-KV/μs Transient Immunity, TypicalIsolation Barrier Life: > 25 YearsOperates from 3-V to 5.5-V Supply Levels3.3-V and 5-V Level TranslationNarrow Body SOIC-8 PackageSafety and Regulatory Approvals:4242 VPKIsolation per DIN V VDE V 0884-10 and DIN EN 61010-12500 VRMSIsolation for 1 minute per UL 1577CSA Component Acceptance Notice 5A, IEC 60950-1 and IEC 61010-1 StandardsCQC Certification per GB4943.1-2011All trademarks are the property of their respective owners.

Description

The ISO7420, ISO7420M and ISO7421 provide galvanic isolation up to 2500 VRMSfor 1 minute per UL. These digital isolators have two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. The suffix M indicates wide temperature range (–40°C to 125°C). These devices have TTL input thresholds and require two supply voltages, 3.3 or 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply. Note: The ISO7420 and ISO7421 are specified for signaling rates up to 1 Mbps. Due to their fast response time, under most cases, these devices will also transmit data with much shorter pulse widths. Designers should add external filtering to remove spurious signals with input pulse duration <20 ns if desired. The ISO7420, ISO7420M and ISO7421 provide galvanic isolation up to 2500 VRMSfor 1 minute per UL. These digital isolators have two isolated channels. Each isolation channel has a logic input and output buffer separated by a silicon dioxide (SiO2) insulation barrier. Used in conjunction with isolated power supplies, these devices prevent noise currents on a data bus or other circuit from entering the local ground and interfering with or damaging sensitive circuitry. The suffix M indicates wide temperature range (–40°C to 125°C). These devices have TTL input thresholds and require two supply voltages, 3.3 or 5 V, or any combination. All inputs are 5-V tolerant when supplied from a 3.3-V supply. Note: The ISO7420 and ISO7421 are specified for signaling rates up to 1 Mbps. Due to their fast response time, under most cases, these devices will also transmit data with much shorter pulse widths. Designers should add external filtering to remove spurious signals with input pulse duration <20 ns if desired.