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ISO7741FDBQR - 4-Ch 100Mbps Digital Isolator | Texas Instruments
ISO7741FDBQR

ISO7741FDBQR - 4-Ch 100Mbps Digital Isolator | Texas Instruments

The Texas Instruments ISO7741FDBQR is a high-performance, reinforced quad-channel digital isolator designed for robust signal isolation in industrial and automotive systems. It provides four isolation channels in a 3 forward / 1 reverse configuration, supports data rates up to 100 Mbps, and achieves a common-mode transient immunity (CMTI) of 85 kV/us. Housed in a compact 16-pin SSOP (DBQ) package, the device delivers 3000 Vrms reinforced isolation per UL 1577 and operates from -55C to +125C. A digital isolator is an integrated circuit that transfers digital signals across an isolation barrier without a direct electrical connection, preventing ground loops and protecting low-voltage circuitry from high-voltage transients. In the system hierarchy, digital isolators are interface ICs used in isolated communication and sensor networks. The ISO774x family leverages Texas Instruments robust-EMC technology to maintain signal integrity in electrically noisy environments such as motor drives and inverters. Key features include 3000 Vrms reinforced isolation, 100 Mbps data rate, 85 kV/us CMTI, default-low output state (F suffix) for fail-safe power-up, and a 3/1 channel configuration. The device is certified to UL 1577, VDE, CSA, TUV, and CQC, making it suitable for safety-critical applications. It operates over a -55C to +125C temperature range and is available in tape and reel packaging for high-volume production. The ISO7741FDBQR uses an integrated isolation barrier with silicon dioxide (SiO2) insulation to transfer digital data across the barrier. The F suffix sets outputs low when the input supply is unpowered, ensuring a known state for attached microcontrollers and actuators. With 100 Mbps throughput, it supports high-speed SPI, UART, and GPIO isolation while maintaining low propagation delay (16 ns max) and high reliability. The robust-EMC design reduces the impact of radiated and conducted interference, simplifying qualification in CE-marked industrial products. Typical applications include industrial automation PLCs, motor drives, solar inverters, medical equipment, automotive battery management systems, and isolated SPI/UART communication buses. In each, the ISO7741FDBQR provides reliable signal transfer while protecting control electronics from high-voltage spikes and ground potential differences. Designers should ensure that supply decoupling capacitors are placed close to the device pins and that PCB layout respects creepage and clearance distances required for the isolation voltage. For default-high outputs, choose the non-F variant (ISO7741DBQR).

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ISO7741FQDBQRQ1 - 100Mbps 3/1 Quad Digital Isolator | TI
ISO7741FQDBQRQ1

ISO7741FQDBQRQ1 - 100Mbps 3/1 Quad Digital Isolator | TI

The Texas Instruments ISO7741FQDBQRQ1 is an automotive-grade, AEC-Q100 qualified, reinforced four-channel digital isolator in a 16-pin SSOP (DBQ) package, delivering three forward and one reverse direction channel at up to 100 Mbps data rate. It provides 3000 VRMS galvanic isolation per UL 1577, 85 kV/us common-mode transient immunity (CMTI), and 2.25 V to 5.5 V supply on both sides enabling 1.8 V-to-5 V logic translation. A digital isolator is a semiconductor device that transfers digital signals across an isolation barrier while blocking high voltages, isolating ground loops, and protecting low-voltage circuitry from hazardous potentials. Within the power-management and signal-chain hierarchy, digital isolators sit alongside optocouplers and isolation amplifiers as galvanic isolation solutions, with the ISO774x-Q1 family using a capacitive SiO2 isolation technology that outperforms optocouplers in speed, power consumption, and reliability. Key features include the robust-EMC F-grade option with reinforced insulation, default output states for fail-safe behavior, low propagation delay, low power consumption, and wide temperature range of -40C to +125C ambient for automotive under-hood environments. The DBQ package supports 3000 VRMS isolation while the larger DW package supports 5000 VRMS in the broader family. Technically, the ISO774x-Q1 uses an on-chip transformer built from SiO2 capacitive barriers, with a high-frequency carrier modulating input data across the barrier and a differential receiver on the secondary side. This architecture delivers fast edge rates, low channel-to-channel skew, and exceptional immunity to external fields. The F-grade designation indicates enhanced EMC robustness with system-level IEC 61000-4-2 and IEC 61000-4-4 compliance. Typical applications include isolated CAN and RS-485 bus interfaces in automotive networks, gate-drive signal isolation for traction inverters and onboard chargers, battery-management-system (BMS) communications, isolated SPI/GPIO links in industrial PLCs, and isolated UART links between MCUs and transceivers. Design tip: decouple both VCC pins with 0.1 uF ceramic capacitors placed within 2 mm of the pins, respect the 16-SSOP creepage/clearance limits of the DBQ package, and avoid placing high-voltage planes directly beneath the device to maintain rated isolation. This page synthesizes distributor pricing, AEC-Q100-qualified drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ISO7741FQDWWQ1 - Automotive 4-Ch Digital Isolator | TI | 5700Vrms
ISO7741FQDWWQ1

ISO7741FQDWWQ1 - Automotive 4-Ch Digital Isolator | TI | 5700Vrms

The Texas Instruments ISO7741FQDWWQ1 is an automotive-grade (AEC-Q100 qualified) reinforced 4-channel digital isolator with 3 forward / 1 reverse channel directionality, delivering 100 Mbps signaling at 5700 Vrms isolation (DWW package) in a 16-pin extra-wide-body SOIC (0.551", 14.00 mm) package. The device provides best-in-class CMTI of 85 kV/us minimum and supports 2.25 V to 5.5 V supply voltage on each side, enabling direct level translation between low-voltage MCUs and higher-voltage peripherals. Reinforced insulation ratings comply with UL 1577, VDE, CSA, TUV, and CQC standards for high-voltage system safety. A digital isolator transfers logic signals across a galvanic isolation barrier using capacitive or magnetic coupling rather than optical or transformer coupling. This architecture eliminates ground loops, breaks high-voltage paths between subcircuits, and allows dissimilar supply domains to communicate safely. Within the broader power-management and signal-chain hierarchy, digital isolators sit alongside gate drivers, isolated ADCs, and isolated DC/DC converters as essential building blocks for any system that must bridge low-voltage control logic to high-voltage power stages. The ISO77xx family is TI's flagship reinforced-isolation platform. Key electrical features include 4 channels (3/1 direction), 100 Mbps maximum data rate, 11 ns typical propagation delay, 2.5 ns channel-to-channel skew, and 60-year typical working voltage at 1500 Vrms. The device supports 2.25 V to 5.5 V supplies on both VCC1 and VCC2 sides, draws 4.3 mA per channel at 10 Mbps, and integrates default-low outputs that return to a defined state on power loss. Automotive-grade EMC robustness covers ±8 kV ESD HBM and ±4 kV contact discharge per IEC 61000-4-2. The capacitive SiO2 isolation barrier delivers high CMTI (Common-Mode Transient Immunity) of 85 kV/us minimum, ensuring signal integrity in noisy environments such as motor inverters, solar string combiners, and EV traction inverters. The device also exhibits very low radiated emissions, easing CISPR 32 / EN 55032 Class B compliance at the system level. Two opposite channels can be combined for fail-safe signaling, and the default-low output option simplifies the implementation of system-safe-state boot sequences. Typical applications span HEV/EV traction inverters, on-board chargers (OBC), DC fast-charging stations, industrial motor drives, solar inverters, isolated SPI / RS-232 / RS-485 interfaces, and battery management systems (BMS). The wide-body SOIC package provides the reinforced 8 mm creepage/clearance required for 5700 Vrms isolation in a through-hole-compatible footprint, while the AEC-Q100 Grade 1 qualification (-40C to +125C) supports under-hood automotive deployment. When designing with the ISO7741FQDWWQ1, place 0.1 uF + 10 uF decoupling capacitors close to VCC1 and VCC2, and confirm that the PCB layout preserves 8 mm of creepage between primary and secondary sides. The default-low output behavior must be considered in any application where power-on state is safety-critical. This page synthesizes distributor pricing, AEC-Q100 drop-in alternatives, and practical EMC design notes not found in the manufacturer datasheet.

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ISO7741FQDWWRQ1 - Automotive 4-Ch Digital Isolator | TI
ISO7741FQDWWRQ1

ISO7741FQDWWRQ1 - Automotive 4-Ch Digital Isolator | TI

The Texas Instruments ISO7741FQDWWRQ1 is an automotive-grade, reinforced quad-channel digital isolator with three forward and one reverse-direction channels, packaged in a 16-pin extra-wide-body SOIC (DWW) with 5700 Vrms isolation rating per UL 1577 and 85 kV/µs typical CMTI. It supports up to 100 Mbps data rate across each channel, making it suitable for high-speed SPI, CAN, RS-485, and I2C isolation in automotive and industrial systems. The DWW package provides wide creepage and clearance suitable for reinforced insulation at mains or bus voltages up to 1500 Vrms working voltage. A digital isolator is a semiconductor device that transfers logic signals between two galvanically isolated voltage domains using an on-chip SiO2 capacitive or RF coupler, replacing bulky optocouplers with a smaller, faster, lower-power solution. In the broader taxonomy, the ISO7741FQDWWRQ1 belongs to the digital isolator category, which sits within interface ICs in the signal chain between mixed-signal controllers and external transceivers. Reinforced isolation means the part survives 5000 Vrms (DW) or 5700 Vrms (DWW) for 60 seconds per UL 1577, which is a stricter safety requirement than basic isolation. Key features include ±8 kV HBM ESD on all pins per AEC-Q100, robust EMC with low emissions, glitch-free power-up/power-down sequencing, and a wide -40°C to +125°C operating range. The device operates from 2.25 V to 5.5 V on both sides, eliminating the need for external level shifters when bridging 3.3 V MCUs to 5 V transceivers. Default output is high on channels without input transition to provide a known safe state at startup. Typical applications include isolated SPI between an ECU microcontroller and a traction inverter gate driver, isolated CAN-FD bus interfaces in 12 V/48 V mild-hybrid systems, and reinforced isolation for industrial motor drives with human-accessible I/O. The AEC-Q100 qualification supports direct deployment in body electronics, battery management, and onboard charger subsystems. When designing with this device, place 0.1 µF decoupling capacitors on both VCC1 and VCC2 as close to the IC pins as possible, and avoid routing signal traces beneath the package to preserve creepage. The default-high outputs can be inverted to default-low for fail-safe bus bias by selecting the ISO7741F-Q1 variant with the inverted default.

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ISO7741QDWWRQ1 - 4-Ch Digital Isolator, 100Mbps | Texas Instruments
ISO7741QDWWRQ1

ISO7741QDWWRQ1 - 4-Ch Digital Isolator, 100Mbps | Texas Instruments

The Texas Instruments ISO7741QDWWRQ1 is an automotive-qualified, reinforced 4-channel digital isolator with 3 forward and 1 reverse channel, delivering up to 100 Mbps signaling in a 16-pin extra-wide-body SOIC (DWW) package. It supports 5700 Vrms isolation and 85 kV/us minimum common-mode transient immunity (CMTI), making it suitable for noise-heavy industrial and automotive environments. A digital isolator is a semiconductor device that transfers data across an electrical isolation barrier using capacitive or magnetic coupling rather than optical or transformer means. Digital isolators sit in the signal chain isolation category, above optocouplers in switching speed and below transformer-based isolators in cost, and they belong to the broader interface ICs family of power management and inter-chip communication building blocks. By replacing legacy optocouplers they enable smaller, faster, more reliable signal isolation. Key features include a 2.25 V to 5.5 V supply range per side, default output-high option on the F variant, low power consumption of about 1.7 mA per channel at 1 Mbps, and an industrial-leading CMTI rating that protects data integrity when switching high dV/dt transients occur across the barrier. The extra-wide-body SOIC (DWW) footprint maintains 8 mm of creepage and clearance for reinforced insulation per IEC 61010-1 and related safety norms. The ISO7741QDWWRQ1 uses TI's capacitive isolation technology with an ON/OFF keying (OOK) modulation scheme and an internal differential link that rejects common-mode noise. Each channel has its own enable control, supporting fault-tolerant multi-channel designs. The device is AEC-Q100 Grade 1 qualified with an operating temperature range of -40C to +125C. Typical applications include EV battery management system (BMS) communications, traction inverter gate-driver signal isolation, industrial fieldbus isolation (CAN, RS-485, SPI), and isolated power-supply feedback. The reinforced insulation rating supports line-side to low-side isolation in photovoltaic inverters and motor drives. When designing with this device, place 0.1 uF decoupling capacitors as close as possible to the VCC1 and VCC2 pins. Avoid routing high-speed traces directly beneath the isolator to preserve barrier integrity, and verify that creepage and clearance meet end-equipment IEC requirements. This page synthesizes distributor pricing, drop-in alternatives from TI's ISO77xx family and competitor isolators, and practical design notes not found in the manufacturer datasheet alone.

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ISO7742DBQR - Quad-Channel Digital Isolator, 100Mbps, 3kVrms | Texas Instruments
ISO7742DBQR

ISO7742DBQR - Quad-Channel Digital Isolator, 100Mbps, 3kVrms | Texas Instruments

The Texas Instruments ISO7742DBQR is a quad-channel digital isolator with 2 forward and 2 reverse-direction channels (2/2 configuration), 100 Mbps data rate, and 3 kVrms isolation rating housed in a 16-pin SSOP (DBQ) wide-body package. It features 85 kV/µs common-mode transient immunity (CMTI) and reinforced insulation per UL 1577, making it suitable for industrial systems with fast switching transients on the ground reference. What is a digital isolator? A digital isolator is a semiconductor device that transfers logic-level signals between two voltage domains while providing galvanic isolation (typically several kVrms) between them. Digital isolators replace legacy optocouplers in modern designs because they offer higher data rates, lower power consumption, tighter pulse-width distortion, and superior CMTI. Within the broader hierarchy, the ISO7742DBQR is a digital isolator -> signal isolator -> interface IC -> integrated circuit. Key features include: 100 Mbps signaling with a maximum pulse-width distortion of 2.5 ns, 4.5 ns typical propagation delay, 100 µA/channel typical quiescent current at 1 Mbps, and a wide 2.25V to 5.5V supply range on both sides (VCC1 and VCC2 independent). Robust EMC performance includes IEC 61000-4-2 ESD contact discharge ratings and IEC 61000-4-4 EFT immunity, while the integrated fail-safe default-high output eliminates need for external pull-up logic. The ISO7742DBQR uses TI's proprietary silicon-dioxide (SiO2) capacitive isolation barrier combined with an on-chip RF carrier for signal transfer across the isolation barrier. This architecture avoids LED-aging issues inherent to optocouplers and delivers deterministic timing that simplifies timing-budget analysis in SPI, UART, RS-485, GPIO, and I2C signal isolation. The 85 kV/µs CMTI prevents data corruption in motor-drive, solar-inverter, and industrial-servo applications where large dV/dt transients are common. Typical applications include isolated SPI interfaces for motor drives and solar inverters, isolated RS-485/RS-232 transceivers, factory-automation I/O modules, isolated GPIO in PLCs, and digital control signal isolation in medical and renewable-energy equipment. When designing with the ISO7742DBQR, place 0.1 µF bypass capacitors as close as possible to both VCC pins and follow high-voltage PCB layout rules (4 mm minimum creepage, isolation cuts in inner layers) to preserve the rated isolation voltage. This page synthesizes distributor pricing, drop-in alternatives, and practical layout guidance not aggregated in the manufacturer datasheet.

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ISO7760FDBQR - 6-Ch 100Mbps Digital Isolator, 3kV | TI
ISO7760FDBQR

ISO7760FDBQR - 6-Ch 100Mbps Digital Isolator, 3kV | TI

The Texas Instruments ISO7760FDBQR is a high-speed, reinforced six-channel digital isolator with 6 forward and 0 reverse channels (6/0), delivering 100 Mbps data rate and 3000 Vrms isolation rating per UL 1577. It comes in a 16-pin SSOP (DBQ) package with 85 kV/µs typical CMTI and a wide 2.25 V to 5.5 V supply range on both sides. What is a digital isolator? A digital isolator is a semiconductor device that transmits binary signals across an electrical isolation barrier using capacitive or inductive coupling rather than optocouplers. Digital isolators sit within the interface IC category (digital isolator -> isolator -> interface IC -> integrated circuit) and are essential for breaking ground loops, protecting low-voltage logic from high-voltage transients, and meeting safety standards such as UL 1577, IEC 60747-17, and reinforced insulation requirements. Compared with optocouplers, CMOS-based digital isolators offer higher speed, lower power, better CMTI, and tighter channel-to-channel matching. Key features of the ISO7760FDBQR include robust EMC performance, up to 5000 Vrms isolation on the SOIC-DW variant, 12.8 kV surge capability, >30-year projected lifetime at rated working voltage, ±100 kV/µs typical common-mode transient immunity, and level translation across 2.25 V to 5.5 V on either side. Default output is high when input is open, which simplifies fail-safe system design. The device integrates a SiO2-based isolation barrier supporting reinforced insulation per VDE 0884-11 / IEC 60747-17. The architecture uses TI's proprietary CMOS capacitive coupling with on-off keying (OOK) modulation and a differential receiver, which provides excellent immunity to common-mode noise and stable propagation delay (~10.7 ns typical) across temperature. Integrated fail-safe logic and under-voltage lockout on both rails prevent bus chatter during power-up and power-down sequencing. Typical applications include industrial fieldbus isolation (RS-485, CAN, SPI), motor-drive gate-driver signal isolation, solar inverter power-stage communication, medical equipment patient-isolation interfaces, and battery management systems (BMS) where reinforced isolation is mandated by safety standards. The wide supply range simplifies level shifting between 3.3 V MCUs and 5 V transceivers without external level translators. When designing with the ISO7760FDBQR, place 0.1 µF bypass capacitors close to each VCC pin on both sides of the barrier. The exposed pad (DBQ package) should be soldered to a copper pour to reduce thermal resistance and improve surge performance. This page synthesizes distributor pricing, drop-in same-package alternatives, and EMC layout guidance not found on a single supplier page.

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ISO7760QDBQQ1 - 6-Ch 100Mbps Reinforced Digital Isolator | TI
ISO7760QDBQQ1

ISO7760QDBQQ1 - 6-Ch 100Mbps Reinforced Digital Isolator | TI

The Texas Instruments ISO7760QDBQQ1 is an automotive-qualified, reinforced six-channel (6/0) digital isolator with 100 Mbps signaling rate, 3000 VRMS isolation rating in the DBQ package, and 85 kV/µs common-mode transient immunity (CMTI), housed in a 16-pin SSOP (DBQ) package. It supports 2.25 V to 5.5 V wide supply on both sides, enabling level translation between low-voltage microcontrollers and 5 V peripherals without external shifters. Digital isolators are semiconductor devices that use capacitive, inductive, or optical coupling to transmit data across a galvanic isolation barrier while blocking high voltages. ISO7760QDBQQ1 belongs to the capacitive-coupling family of digital isolators within TI's isolation IC portfolio, occupying the role of "signal-path galvanic barrier" in functional safety architectures (ISO 26262) and reinforced-insulation designs per IEC 60747-17. Reinforced insulation means the device withstands 5 kV RMS / 8 kV peak transient overvoltage, suitable for system-level working voltages up to 600 VRMS. Key features of the ISO7760QDBQQ1 include a low 200 ns typical propagation delay, 1 ns channel-to-channel skew, AEC-Q100 Grade 1 qualification (-40 °C to +125 °C), and UL 1577 / VDE / CSA / TUV / CQC safety certifications. The device consumes 2.5 mA per channel at 5 V and 1 Mbps, significantly lower than optocoupler alternatives, and integrates robust EMC with low EMI emissions, eliminating the need for external shielding on most PCB designs. Internally, the ISO7760 uses TI's proprietary silicon-dioxide (SiO2) capacitive isolation barrier with on-chip differential signaling and refresh. Each channel uses a differential Tx/Rx pair across two capacitors, giving excellent common-mode noise rejection; the SiO2 dielectric is intrinsically radiation-tolerant and provides > 50-year barrier life at rated voltage. A simple CMOS interface eliminates the LED-degradation issues of optocouplers, giving the part a 25-year operating lifetime. Typical applications include EV battery-management system (BMS) communications, traction inverter gate-driver signal isolation, industrial CAN/RS-485 interface isolation, and PLC I/O isolation. Its AEC-Q100 Grade 1 rating makes it suitable for under-the-hood automotive designs where ambient temperature exceeds 100 °C. When designing, route input and output supply rails with 0.1 µF bypass capacitors placed within 2 mm of the VCCx pins, and keep high-dV/dt traces (gate drivers, motor phases) at least 8 mm away from the barrier side to maintain 85 kV/µs CMTI margin. This page synthesizes distributor pricing, automotive-grade drop-in alternatives, application diagrams and EMC layout guidance not found on the TI datasheet alone.

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ISO7760QDWRQ1 - 6-Ch Digital Isolator 5000Vrms | TI | Automotive
ISO7760QDWRQ1

ISO7760QDWRQ1 - 6-Ch Digital Isolator 5000Vrms | TI | Automotive

The Texas Instruments ISO7760QDWRQ1 is a high-performance, six-channel digital isolator with 6 forward / 0 reverse channels, rated for 5000 VRMS isolation (DW package) per UL 1577 and supporting data rates up to 100 Mbps with 85 kV/us common-mode transient immunity (CMTI). Housed in a wide-body 16-pin SOIC (DW) package, the device is qualified to AEC-Q100 for automotive applications and provides reinforced galvanic isolation between CMOS or LVCMOS digital I/Os. A digital isolator is a semiconductor device that transfers logic signals across an isolation barrier using high-voltage capacitors or miniature transformers, while blocking DC and low-frequency noise between grounds. Digital isolators belong to the broader category of signal isolators and sit within signal-chain and interface ICs, replacing legacy optocouplers with 10x faster data rates, 1/10 the propagation delay, tighter channel-to-channel matching, and superior CMTI for noisy motor-drive and industrial environments. Key features of the ISO7760QDWRQ1 include reinforced 5000 VRMS isolation (DW package) certified to UL 1577, VDE 0884-11, CSA, TUV and CQC, six unidirectional channels with default output low or high options, low power consumption of 1.3 mA per channel typical at 1 Mbps, and a wide supply range of 2.25 V to 5.5 V on both sides. The wide-body SOIC package provides the required 8 mm creepage and clearance for reinforced isolation. The ISO776x-Q1 family uses TI's capacitive isolation technology with an SiO2 dielectric barrier, delivering >40-year projected lifetime at rated working voltage and robust EMC performance (low emissions, high immunity). On-chip ESD cells protect each pin against 4 kV HBM and 1 kV CDM discharges, reducing external protection component count. Typical applications include isolated SPI/UART interfaces in EV traction inverters and BMS modules, isolated gate-drive signal paths for SiC/IGBT power stages, CAN/LIN transceivers in 48-V mild-hybrid systems, and industrial PLC analog/digital backplane isolation. Designers should leave the enable pin in a defined state (tied high or low via 4.7 kV presents at the pin) and place 0.1 uF VCC bypass capacitors as close as possible to each supply pin to meet emissions targets.

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ISO7761DBQ - 6-Channel 5/1 Digital Isolator, 3kVrms | Texas Instruments
ISO7761DBQ

ISO7761DBQ - 6-Channel 5/1 Digital Isolator, 3kVrms | Texas Instruments

The Texas Instruments ISO7761DBQ is a reinforced 6-channel digital isolator in a 5 forward / 1 reverse channel configuration, housed in a 16-pin SSOP (DBQ) package with 3000 Vrms isolation rating per UL 1577. It supports data rates up to 100 Mbps and features a typical common-mode transient immunity (CMTI) of 85 kV/us, making it suitable for robust industrial communication links. The wide supply voltage range of 2.25 V to 5.5 V on each side enables direct connection to most CMOS and LVCMOS logic families without level shifters. A digital isolator is a semiconductor device that transfers data across an galvanically isolated barrier using high-voltage capacitive or magnetic coupling instead of an optocoupler LED. Within the broader taxonomy a digital isolator falls under isolators -> interface ICs -> integrated circuits, and it replaces legacy optocouplers in applications that demand higher speed, lower power, better CMTI, and tighter channel-to-channel timing skew. The ISO7761 specifically targets the reinforced insulation class per UL 1577 and is certified by VDE, CSA, TUV and CQC. Key features include 100 Mbps signaling on all six channels simultaneously, 85 kV/us minimum CMTI, low propagation delay of typically 11 ns, low pulse-width distortion of 0.5 ns, and 2.5 mA per-channel quiescent current at 1 Mbps. The robust EMC performance includes system-level IEC 61000-4-2 (ESD) ratings above 8 kV contact and 15 kV air, along with IEC 61000-4-4 (EFT) compliance. All inputs and outputs support 2.25 V to 5.5 V supplies, allowing voltage level translation across the isolation barrier. The ISO7761 is fabricated on TI's proprietary silicon-dioxide (SiO2) capacitive isolation technology, which delivers industry-leading CMTI performance and radiation tolerance. Internal refresh circuitry continuously resynchronizes the output state to the input, eliminating bit errors from CMTI events. The device integrates dc-dc converter interface pins (VCC pins are independent on each side), and all logic I/O pins use Schmitt-trigger inputs for noise immunity. Typical applications include industrial fieldbus isolation (RS-485, CAN, SPI), motor drive gate-driver signal isolation, solar inverter high-voltage interface isolation, PLC analog/digital I/O module isolation, and medical equipment patient-isolation interfaces. The 5/1 channel count matches the typical MCU SPI or UART port arrangement. When designing with the ISO7761, place 0.1 uF and 1 uF decoupling capacitors close to each VCC pin and ensure that the high-voltage barrier trace clearance meets end-equipment isolation standards.

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ISO7761DBQR - 6-Ch 5/1 Digital Isolator 3kVrms 100Mbps | TI
ISO7761DBQR

ISO7761DBQR - 6-Ch 5/1 Digital Isolator 3kVrms 100Mbps | TI

The Texas Instruments ISO7761DBQR is a high-performance, six-channel digital isolator with a 5 forward / 1 reverse (5/1) channel configuration, rated for 3000 Vrms isolation (UL 1577) in the 16-pin SSOP (DBQ) package. Per the manufacturer datasheet, the part delivers 100 Mbps data rate, 85 kV/us minimum common-mode transient immunity (CMTI), and robust EMC performance suitable for noise-prone industrial environments. A digital isolator is a galvanic isolation device that transfers logic signals across a safety isolation barrier using capacitive or magnetic coupling rather than an optocoupler LED. This topology eliminates the aging, CTR degradation, and slow propagation of optocouplers while meeting reinforced insulation ratings. In the system hierarchy, the ISO7761 sits between a logic-level controller (MCU, FPGA, ASIC) and a high-voltage or noisy domain (gate driver, sensor, communication bus), protecting low-voltage silicon from ground-potential differences and fast transients on the field side. Key features include wide 2.25 V to 5.5 V supply range on both sides, default low outputs, low 1.7 mA per channel typical quiescent current at 1 Mbps, and 100 Mbps NRZ signaling with < 12 ns typical propagation delay. The device is certified per UL 1577, IEC 60747-17 (VDE), CSA, TUV, and CQC for reinforced insulation, with 3000 Vrms working voltage (DBQ package) and 5000 Vrms (DW package variant). The SSOP-16 (DBQ) footprint is 5 mm x 4 mm, ideal for compact designs. Internally, the ISO7761 uses TI's silicon-oxide (SiO2) capacitive isolation barrier with on-off keying modulation and differential signaling across the barrier. A refresh circuit on each side periodically re-drives the output to maintain DC accuracy. The high CMTI of 85 kV/us ensures the output does not glitch during fast switching events such as IGBT/MOSFET transitions in motor drive and solar inverter applications. Typical applications include industrial fieldbus isolation (RS-485, CAN, SPI), isolated gate driving for IGBT/MOSFET half-bridges, isolated ADC/DAC signal chains, PLC I/O modules, solar inverter control boards, and medical equipment patient isolation. The wide supply range allows direct interfacing to 3.3 V and 5 V MCUs without level translation. When designing with this device, ensure adequate decoupling on both VCC1 and VCC2 (typically 0.1 uF plus 1 uF bulk) placed within 2 mm of the supply pins. Maintain the creepage and clearance required by your end-equipment safety standard, and confirm that the DBQ package's 8 mm clearance meets your reinforced-insulation voltage needs (use the DW package for 5000 Vrms). This page synthesizes distributor pricing, drop-in alternative cross-references, and practical EMC/layout design notes not aggregated on a single manufacturer or distributor page.

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ISO7761DW - 6-Ch 100Mbps Reinforced Digital Isolator | TI
ISO7761DW

ISO7761DW - 6-Ch 100Mbps Reinforced Digital Isolator | TI

The Texas Instruments ISO7761DW is a high-performance six-channel digital isolator (5 forward + 1 reverse) rated for 5000 Vrms isolation (DW package) per UL 1577, housed in a 16-pin SOIC (DW) wide-body package. It supports up to 100 Mbps data rate, 85 kV/µs minimum common-mode transient immunity (CMTI), and an operating temperature range of -55 °C to +125 °C, making it suitable for reinforced isolation in industrial, automotive, and grid applications. The device consumes a typical 1.5 mA per channel quiescent current at 1 Mbps and operates from 2.25 V to 5.5 V on each supply side. An digital isolator is a semiconductor device that transfers data across an galvanically-isolated barrier using on-chip transformers, RF coupling, or optical encoding, while blocking high-voltage transients and ground-potential differences. Within the broader signal-chain taxonomy, digital isolators sit under interface ICs (functional class: isolators) and replace legacy optocouplers where higher speed, lower power, tighter CMTI, and integrated multi-channel packaging are required. The ISO776x family targets applications that previously needed 6 separate optocouplers. Key differentiating specifications include reinforced 5000 Vrms isolation (DW-16 package), 100 Mbps per-channel signaling, 85 kV/µs CMTI to survive fast switching transients on long motor or bus cables, and ±8 kV HBM ESD on all pins. The wide-body SOIC-16 (7.5 mm creepage) provides the clearance and creepage distances required by IEC 60747-17 (VDE 0884-17) for reinforced working voltage up to 1500 Vpk / 2121 Vpk (per datasheet). Integrated fail-safe default-low or default-high outputs (variant dependent) eliminate external pull resistors. The ISO7761 uses TI's CMOS-based silicon-dioxide capacitive-isolation barrier with on-die edge encoding/decoding, delivering stable channel-to-channel skew of < 5 ns and >100 V/ns dV/dt tolerance. Internally, two separate grounds (GND1 and GND2) allow reference domains on opposite sides of the isolation barrier; power converters on each side are typically bootstrapped with a transformer-driver plus an LDO (e.g., SN6505B + TPS7A47) or a TI integrated isolated DC/DC module. Typical applications include isolated SPI/RS-485/RS-232 interfaces for factory automation, isolated gate drivers for IGBT/MOSFET half-bridges in motor drives and solar inverters, isolated ADC/DAC front-ends for grid protection relays, and battery-management system (BMS) communication in 400 V / 800 V EV traction packs. The reinforced 5000 Vrms rating qualifies it for use across the isolation boundary in medical (IEC 60601-1) and energy-storage (IEC 62933) equipment. When designing with the ISO7761DW, place 0.1 µF bypass capacitors on VCC1 and VCC2 within 2 mm of the device pins, respect the 8 mm minimum creepage on the PCB surface, and ensure the upstream MCU logic-level matches VCCx (2.25 V to 5.5 V). The default-output polarity should be selected to match system reset behavior — ISO7761 (suffix-F) offers default-high for fail-safe high-side driving. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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ISO7761FDBQ - 6-Channel Digital Isolator, 100Mbps, 3kVrms | TI
ISO7761FDBQ

ISO7761FDBQ - 6-Channel Digital Isolator, 100Mbps, 3kVrms | TI

The Texas Instruments ISO7761FDBQ is a reinforced 6-channel digital isolator with 5 forward and 1 reverse direction channel, supporting 100 Mbps signaling and 3000 Vrms isolation in a 16-pin SSOP (DBQ) package. It is part of the ISO776x family designed for high-speed serial communication across galvanic barriers in industrial, automotive, and grid-tied systems. The device delivers robust electromagnetic compatibility (EMC) with 85 kV/µs minimum common-mode transient immunity (CMTI), low emissions, and UL 1577, VDE, CSA, TUV, and CQC certifications. A digital isolator is an integrated circuit that transfers logic-level signals between two voltage domains while providing galvanic isolation between them. It typically uses CMOS-compatible I/O on each side of a silicon-dioxide (SiO2) or polyimide-based high-voltage insulation barrier, combined with on-chip RF or pulse-edge encoding (such as TI's on-off keying scheme) to magnetically or capacitively couple data across the barrier. In the broader component taxonomy, a digital isolator falls under isolator ICs, which belong to interface ICs in the signal-conditioning and power-management hierarchy. Key features of the ISO7761FDBQ include: 6 unidirectional channels (5 forward/1 reverse), 1.5 ns typical propagation delay, 100 Mbps maximum data rate, 100 µs typical enable/disable propagation delay, and 10 ns pulse-width distortion. The wide-body SSOP-16 package achieves 8 mm of creepage and clearance between side 1 and side 2 grounds, supporting 3000 Vrms working voltage per UL 1577 and 1500 Vpk per VDE 0884-11 (reinforced insulation). The default output is logic-high when input is floating, simplifying fault-mode handling in motor-drive and solar inverter systems. Internally, each channel uses TI's proprietary CMOS isolation technology with on-chip transformers for signal coupling, plus refresh logic and watchdog circuits to reject high-frequency common-mode noise. The wide-body SSOP provides mechanical stability and 8-mm clearance required for reinforced 300 Vrms or 1500 Vpk safety-rated systems. Built-in glitch filters and IEC 61000-4-2 ESD protection further improve field reliability in factory automation. Typical applications include isolated SPI interfaces, multi-channel ADC data isolation, solar inverter gate-driver signaling, motor-control I/O isolation in industrial drives, and reinforced isolation for medical and renewable-energy equipment. The device is commonly paired with the ISO5851 gate driver, ISO1640 I2C isolator, and digital controllers such as C2000 microcontrollers. When designing with the ISO7761FDBQ, place 0.1 µF decoupling capacitors on both VCC1 and VCC2 as close to the pins as possible, and route the high-voltage barrier cut-out so that no PCB copper crosses the isolation boundary. Use wide-body DBQ (3.90 mm) not narrow-body SOIC for reinforced 300 Vrms systems. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet. All specs verified against TI's ISO7761 datasheet and DigiKey distributor listings as of 2026-10-08.

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ISO7762DBQR - 6-Ch 100Mbps Digital Isolator | TI
ISO7762DBQR

ISO7762DBQR - 6-Ch 100Mbps Digital Isolator | TI

The ISO7762DBQR is a reinforced six-channel digital isolator from Texas Instruments, designed for robust signal isolation in industrial and automotive applications. It provides 3000-VRMS isolation rating per UL 1577, with a data rate of 100 Mbps and a typical common-mode transient immunity (CMTI) of ±100 kV/µs. The device operates from a wide supply range of 2.25 V to 5.5 V, making it versatile for various logic levels. It is housed in a 16-pin SSOP (DBQ) package, measuring 0.154" width, and is rated for operation from -55°C to 125°C. Digital isolators are components that transmit digital signals across an isolation barrier, providing galvanic isolation to protect circuits and users from high voltages, ground loops, and noise. They are essential in systems where safety and signal integrity are critical, such as in motor drives, power converters, and medical equipment. The ISO7762DBQR belongs to the ISO776x family, which includes variants with different channel configurations and isolation ratings, all certified to VDE, CSA, TUV, and CQC standards. Key features of the ISO7762DBQR include its reinforced isolation barrier with a projected lifetime of over 30 years, surge capability up to 12.8 kV, and low power consumption. The device supports CMOS or LVCMOS digital I/Os and offers high electromagnetic immunity and low emissions, ensuring reliable operation in noisy environments. The 4/2 channel configuration (four forward, two reverse) is ideal for applications requiring bidirectional communication. Technically, the ISO7762DBQR uses TI's proprietary capacitive isolation technology, which provides fast propagation delays and low jitter. The device features an enable pin for output control and a fail-safe mode that defaults outputs to a known state when inputs are unpowered. The wide supply range allows seamless interfacing with 2.5V, 3.3V, and 5V logic, simplifying system design. Typical applications include industrial fieldbus communication, isolated SPI/UART interfaces, motor control feedback, and isolated power supply monitoring. The high CMTI and robust isolation make it suitable for harsh environments where voltage transients are common. When designing with the ISO7762DBQR, ensure proper PCB layout with adequate creepage and clearance distances to maintain the isolation rating. Place decoupling capacitors close to the VCC pins and follow the recommended layout guidelines in the datasheet to achieve optimal performance.

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ISO7762FDBQR - 6-Ch 100Mbps Reinforced Digital Isolator | TI
ISO7762FDBQR

ISO7762FDBQR - 6-Ch 100Mbps Reinforced Digital Isolator | TI

The Texas Instruments ISO7762FDBQR is a high-performance reinforced 6-channel digital isolator with 4 forward / 2 reverse channel direction, supporting 3 kVRMS bandwidth isolation (UL 1577) in a 16-pin SSOP (DBQ) package. The device provides up to 100 Mbps data rate and 85 kV/µs common-mode transient immunity (CMTI). It operates from 3.5 V to 5.5 V on both sides, supporting standard logic level translation across the isolation barrier. A digital isolator is a semiconductor device that transfers digital signals across a galvanic isolation barrier using high-voltage internal capacitive or magnetic isolation. Digital isolators replace legacy optocouplers in industrial, automotive, and medical systems because they offer higher speed, tighter channel-to-channel matching, lower power consumption, better CMTI, and longer operational life. They belong to the broader category of signal conditioning ICs within interface ICs. Key features of the ISO7762FDBQR include robust EMC performance per IEC 61000-4-x, reinforced insulation rating per VDE 0884-11, default output low (F option) for fail-safe behavior, and low propagation delay of 12 ns typical at 5 V. The device integrates an on-chip transformer driver and CMOS logic on both isolation domains, achieving >25-year projected isolation barrier life at the rated working voltage. The architecture uses TI's proprietary silicon-dioxide (SiO2) capacitive isolation barrier combined with edge-controlled pulse generation for high CMTI and minimal pulse-width distortion. All channels share a common supply topology and operate independently, supporting SPI, I2C (with external level shifter), UART, RS-485, RS-232, GPIO, and digital sensor interfaces across the barrier. Typical applications include isolated SPI interfaces for solar inverters, isolated RS-485/RS-232 transceivers in factory automation, isolated gate drivers for motor control, isolated ADC/DAC signal chains in medical imaging equipment, and isolated digital IO for EV battery management systems. When designing with this part, ensure that the high-side and low-side supplies are independently decoupled with 0.1 µF + 1 µF ceramic capacitors placed as close as possible to the VCC1 and VCC2 pins. The DBQ package provides 3000 Vrms isolation; choose the DW package variant for 5000 Vrms reinforced isolation at the same pinout. This page synthesizes distributor pricing, drop-in same-brand alternatives (ISO7762DBQR, ISO7762FDBQ, ISO7762FDBQT), and cross-brand alternatives from the Site MPN list (ISO7742DBQR, ISO7741DBQR, ISO7041FDBQR) along with practical design notes not found in the manufacturer datasheet.

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ISO7762FDWR - 6-Ch Reinforced Digital Isolator, 5kVrms, 100Mbps | TI
ISO7762FDWR

ISO7762FDWR - 6-Ch Reinforced Digital Isolator, 5kVrms, 100Mbps | TI

The Texas Instruments ISO7762FDWR is a reinforced six-channel digital isolator in a 16-pin SOIC (DW) wide-body package, rated at 5000 Vrms isolation with 100 Mbps signaling speed and 85 kV/us common-mode transient immunity (CMTI). The device provides four forward and two reverse channels (4/2 directionality) and operates from 2.25 V to 5.5 V on both sides, enabling level translation between mixed-voltage nodes in industrial systems. A digital isolator is a semiconductor device that transfers logic signals across an galvanically-isolated barrier using an on-chip transformer or high-voltage capacitor coupling, replacing optocouplers with higher speed, lower power, tighter channel-to-channel matching, and longer operational life. ISO7762FDWR belongs to the digital isolator -> signal isolator -> isolation IC -> interface IC hierarchy, and within TI's portfolio is part of the ISO77xx reinforced-isolation family that targets IEC 60747-17 basic and reinforced insulation systems. Key specifications include a maximum data rate of 100 Mbps (NRZ), propagation delay of 11 ns typical with 2.5 ns channel-to-channel skew, 1.5 pF typical low input capacitance, and a default output low state when input power is removed. The wide-body SOIC package provides 8 mm of creepage/clearance, supporting 5000 Vrms isolation per UL 1577, IEC 60747-17 reinforced VGB, and reinforced insulation ratings required for industrial motor drives, solar inverters, and medical equipment. The architecture uses TI's silicon-oxide (SiO2) capacitive isolation barrier with an integrated OOK-modulated carrier, providing robust CMTI immunity and very low EMI emissions. The device operates from a single 2.25 V to 5.5 V supply on each side and supports level translation without external components. Internal under-voltage lockout (UVLO) on both supply rails prevents indeterminate outputs during power-up/power-down transients, a critical requirement for functional-safety systems. Typical uses are isolated SPI/UART interfaces between microcontrollers and gate drivers, isolated gate-drive signals for IGBT/MOSFET power stages in motor drives and solar inverters, isolated analog front-end to ADC links in factory-automation controllers, and reinforced isolation in medical patient-monitoring equipment per IEC 60601-1. The DW wide-body SOIC package ensures the 8 mm creepage required for reinforced insulation at 250 V working voltage or higher. When designing with ISO7762FDWR, place 0.1µF + 10µF decoupling capacitors close to each VCC pin, route the input and output channels in separated PCB regions to maximize creepage, and pair the device with isolated gate drivers such as TI ISO5451/ISO5851 for IGBT/PW/SiC power stages. For CAN/RS-isolated nodes, consider ISO7762 plus an external CAN transceiver like TCAN334 or TCAN337 for a complete isolated bus segment. This page synthesizes distributor pricing, drop-in alternatives within the same 16-SOIC (DW) package, and practical design notes not found in the manufacturer datasheet.

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ISO7762FQDBQRQ1 - 6-Ch Reinforced Digital Isolator | Texas Instruments
ISO7762FQDBQRQ1

ISO7762FQDBQRQ1 - 6-Ch Reinforced Digital Isolator | Texas Instruments

The Texas Instruments ISO7762FQDBQRQ1 is an automotive-grade (AEC-Q100 qualified), reinforced 6-channel digital isolator in a 16-pin SSOP (DBQ) package with 4 forward and 2 reverse-direction channels, supporting data rates up to 100 Mbps and a common-mode transient immunity (CMTI) of 85 kV/µs. The device provides 3000 Vrms isolation per UL 1577 and additional certification to VDE, CSA, TUV, and CQC standards, plus reinforced insulation suitable for 5 kV systems when used with the DW package option in the same family. The Q1 suffix indicates the part is automotive qualified, and the F grade denotes the high-speed (100 Mbps) data rate tier of the ISO776x-Q1 family. A digital isolator is a semiconductor device that transfers data across a galvanically isolated barrier using capacitive or magnetic coupling rather than optical or transformer means, enabling robust signal isolation between high-voltage and low-voltage domains in mixed-voltage systems. The ISO776x family implements TI's silicon-dioxide (SiO2) capacitive isolation technology, which delivers high electromagnetic immunity, low emissions, and long-term reliability with stable dielectric aging characteristics. Digital isolators sit in the signal-conditioning hierarchy: sensor/MCU -> digital isolator -> isolated gate driver / communication PHY -> power module or HVDC link. Key features include wide 2.25 V to 5.5 V supply range on both sides, low 1.7 mA per-channel quiescent current at 1 Mbps, ±100 kV/µs CMTI typical, low propagation delay (typically 11 ns), low pulse-width distortion (<4.5 ns), and default-high or default-low output options via part-number suffix. The 16-pin DBQ SSOP package offers a compact 3.90 mm body width while maintaining the 8 mm creepage required for reinforced 3000 Vrms isolation per UL 1577. Typical applications include isolated SPI/UART communication between a microcontroller and a high-voltage gate driver in traction inverters, isolated data acquisition links in battery management systems, isolated RS-485 or CAN transceivers in automotive body controllers, and isolation for industrial 24 V PLC interfaces. The reinforced insulation rating supports functional-safety isolation barriers up to 5 kV in motor-drive and solar inverter systems. When designing with this part, place 0.1 µF bypass capacitors on both VCC1 and VCC2 pins within 2 mm of the device, and avoid routing high dv/dt signals directly beneath the isolator to maintain CMTI margin. The reinforced-insulation barrier requires a minimum 8 mm of PCB creepage under the device body; do not place any copper traces, vias, or solder mask openings within the barrier region. This page combines distributor pricing, drop-in package alternatives from the same TI ISO77xx-Q1 family and the broader reinforced isolator market, and practical EMC/PCB design notes not collected in the manufacturer datasheet alone, helping engineers compare this Q1 automotive-grade option against the standard ISO7762 (non-Q1) for non-automotive designs.

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ISO7762QDWQ1 - 6-Ch 100Mbps Reinforced Digital Isolator | TI
ISO7762QDWQ1

ISO7762QDWQ1 - 6-Ch 100Mbps Reinforced Digital Isolator | TI

The Texas Instruments ISO7762QDWQ1 is an automotive-grade, reinforced six-channel digital isolator with 4 forward and 2 reverse channels, providing 5000 Vrms isolation and 100 Mbps data signaling rate in a 16-pin SOIC (DWQ) wide-body package. The device integrates TI's silicon-oxide (SiO2) capacitive isolation barrier with high CMTI of 85 kV/us typical, robust EMC, and a wide 2.25 V to 5.5 V supply range for direct interfacing to low-voltage controllers and isolated power rails. ISO7762QDWQ1 is qualified to AEC-Q100 for automotive applications and supports operating temperatures from -40 C to +125 C. A digital isolator is a semiconductor device that transfers logic signals between circuits while maintaining galvanic isolation, typically thousands of protection classes by using capacitive, inductive, or optical coupling across an internal dielectric. The ISO7762 product family belongs to the broader category of integrated isolators, interface ICs within the power management / isolation product taxonomy, line sensing and communication between high-voltage and low-voltage domains. In a multi-rail system, the isolator sits between a high-voltage gate driver or motor control stage and a low-voltage MCU/ASIC, breaking ground loops and protecting the low-voltage side from high-voltage transients, surges, and fault events. Compared to optocouplers, modern CMOS digital isolators offer faster data rates, lower propagation delay, lower power, better CMTI, and superior temperature and lifetime stability. Key differentiating features of the ISO7762QDWQ1 include 100 Mbps signaling across all six channels with typical propagation delay of 11 ns (5 ns max skew), wide-input voltage tolerance of 2.25 V to 5.5 V on each side for cross-domain level translation, reinforced 5000 Vrms per UL 1577-1, and integrated robust EMC certification that simplifies system-level ESD/EFT/surge compliance testing. The device supports default low or high output on power loss via enable pin control, and is available in 16-pin SOIC wide-body and SSOP packages. Per TI datasheet, the supply current is typically 14 mA at 100 Mbps with 5 V supplies on both sides, and the device meets VDE 0884-11 basic and reinforced insulation. The ISO7762QDWQ1 is most commonly used in industrial automation, factory automation, and process-control networks, hybrid and electric vehicle (HEV/EV) powertrain, charging station, and battery management systems (BMS), solar inverter and photovoltaic (PV) island, telecom data center power conversion and digital control interfaces, isolated SPI/UART/CAN/JTAG links, motor-control gate-drive isolation, and high-voltage medical instrumentation requiring 5000 Vrms reinforcement. The combination of 100 Mbps speed and 85 kV/us CMTI makes it ideal for driving SiC and IGBT gate drivers where high dv/dt transitions are routine. When designing with the ISO7762QDWQ1, place 0.1 uF and 10 uF VCC bypass capacitors close to each supply pin, and verify that the VDE 0884-11 creepage/clearance and PCB layout rules meet your safety isolation rating. The default output state on power loss is determined by the EN pin setting; plan enable sequencing accordingly to avoid undefined logic during multi-rail power-up.

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ISO7763DWR - 6-Channel 100Mbps Reinforced Digital Isolator | TI
ISO7763DWR

ISO7763DWR - 6-Channel 100Mbps Reinforced Digital Isolator | TI

The Texas Instruments ISO7763DWR is a reinforced six-channel digital isolator with a 3/3 forward-channel configuration, 100 Mbps maximum data rate, 85 kV/us CMTI, and 5000 Vrms reinforced isolation in a 16-SOIC DW package. It is designed for high-speed communication between systems operating at different ground potentials, helping protect low-voltage electronics from high-voltage transients. A digital isolator is a semiconductor interface that transfers data across an electrically isolated barrier while minimizing conductive and capacitive coupling between its input and output sides. The ISO7763 belongs to the interface-IC hierarchy and uses capacitive isolation to support signal transmission up to 100 Mbps. Its reinforced isolation rating is intended for applications requiring stronger galvanic separation than basic isolation circuits. The ISO7763DWR provides six digital channels in a 3/3 arrangement, allowing three signals to travel in one direction and three in the opposite direction. Its 5000 Vrms DW-package isolation rating, 85 kV/us common-mode transient immunity, and reinforced construction make it suitable for industrial control, power conversion, communications, and test equipment. The device is specified from -55°C to +125°C according to the manufacturer product details. The principal design considerations are correct supply bypassing, respect for the isolation barrier, propagation-delay behavior, and the package creepage and clearance requirements. The 16-SOIC package is compatible with surface-mount assembly, while the exact pin functions and channel direction must be confirmed from the official datasheet before PCB routing. The default output state of ISO7763DWR is HIGH, which should be considered during power-up and fail-safe system design. Typical applications include isolated SPI or control links in power converters, communication interfaces in industrial equipment, protection between high-side and low-side circuitry, and digital signal isolation between systems with different ground references. Because isolation does not remove the need for careful layout, external protection, and common-mode analysis, the ISO7763DWR should be selected based on voltage, speed, timing, and EMC requirements rather than package appearance alone. This page consolidates the verified ISO7763DWR specifications, package information, sourcing links, and practical selection guidance. It is intended to help engineers identify whether the ISO7763DWR is appropriate for a particular isolated-interface design.

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ISO7763FDWR - 6-Channel Digital Isolator, 5kVrms, 100Mbps | TI
ISO7763FDWR

ISO7763FDWR - 6-Channel Digital Isolator, 5kVrms, 100Mbps | TI

The Texas Instruments ISO7763FDWR is a reinforced six-channel digital isolator with 3 forward / 3 reverse (3/3) channel directionality, 5000 Vrms isolation rating (DW package), 100 Mbps data rate, and 85 kV/us typical common-mode transient immunity (CMTI), housed in a 16-pin wide-body SOIC (DW) package. The device uses TI's silicon dioxide (SiO2) capacitive isolation barrier technology and is UL 1577, VDE V 0884-11, CSA, and CQC certified for reinforced insulation. The 'F' suffix denotes the default-high output option while the 'DWR' suffix indicates the 16-pin DW wide-body SOIC tape-and-reel packaging. A digital isolator is a semiconductor device that transfers logic signals between two voltage domains while providing galvanic isolation (no direct current path) up to several kVrms. Digital isolators sit in the signal-chain hierarchy between the sensor/MCU domain and the field-side high-voltage domain, replacing optocouplers with faster edge rates, lower propagation delay, lower dynamic power consumption, and longer operational life. Within the broader taxonomy, ISO7763FDWR is a digital isolator > reinforced isolator > capacitive-isolation isolator > UL 1577 / VDE 0884-11 compliant device > interface IC. Key features include 100 Mbps signaling across all six channels (NRZ), typical propagation delay of 11 ns (5 ns max skew between channels), 1.5 ns pulse-width distortion, and a wide 2.25 V to 5.5 V supply range on each side with level-shifting capability between mismatched rails. The 85 kV/us CMTI prevents data corruption in noisy motor-drive and switching-converter environments, and the 5000 Vrms rating per UL 1577 plus 800 Vpeak working voltage per VDE 0884-11 enable use in 230 V / 400 V industrial systems. An integrated refresh circuit keeps output state stable during missing input edges. Typical applications include isolated SPI / UART / GPIO interfaces in PLCs, isolated gate-drive signal paths for IGBT/MOSFET half-bridges, isolated data acquisition between ADC and MCU, industrial fieldbus (RS-485, CAN, Modbus) isolation, and solar / EV traction inverter gate drivers. The wide-body SOIC provides the creepage and clearance required by end-product safety standards such as IEC 61800-5-1 (adjustable-speed drives) and IEC 61010-1 (measurement equipment). When designing with the ISO7763FDWR, place 0.1 uF decoupling capacitors close to both VCC1 and VCC2 pins, and route the two ground returns (GND1, GND2) as separate planes connected only at the isolator. Avoid placing the device near switching-node edges that exceed its 85 kV/us CMTI margin. This page synthesizes distributor stock, parametric drop-in alternatives, and EMC layout notes not found in the manufacturer datasheet alone, giving the design engineer a single decision-grade reference.

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ISO7842FDWW - Reinforced 4-Ch Digital Isolator | TI
ISO7842FDWW

ISO7842FDWW - Reinforced 4-Ch Digital Isolator | TI

The Texas Instruments ISO7842FDWW is a high-performance, reinforced quad-channel digital isolator with a 2/2 channel configuration (two forward, two reverse), designed for robust signal isolation in industrial and automotive systems. It provides 8000-VPK isolation voltage and 5700-Vrms isolation rating, with a wide supply range of 2.25V to 5.5V on both sides, enabling seamless level translation. The device supports signaling rates up to 100 Mbps with a typical propagation delay of 11 ns and a common-mode transient immunity (CMTI) of 100 kV/µs, ensuring reliable data transfer in noisy environments. Housed in a 16-pin SOIC extra-wide body (DWW) package with 14.5 mm creepage, it operates over a wide temperature range of -55°C to +125°C, making it suitable for harsh applications. A digital isolator is a component that provides electrical isolation between two circuits while allowing digital signals to pass across the isolation barrier. It uses capacitive or magnetic coupling to transfer data without a direct electrical connection, protecting sensitive electronics from high voltages, ground loops, and noise. Digital isolators are essential in systems where safety and signal integrity are critical, such as in motor drives, power converters, and medical devices. They replace optocouplers in many applications due to their higher speed, lower power consumption, and better reliability. Key features of the ISO7842FDWW include its reinforced isolation certifications per VDE, CSA, CQC, and TUV, ensuring compliance with international safety standards. The device offers low power consumption, typically 1.7 mA per channel at 1 Mbps, and supports a wide supply range, making it versatile for various voltage domains. Its high CMTI of 100 kV/µs ensures robust operation in environments with fast voltage transients, such as motor drives and inverters. The 2/2 channel configuration provides flexibility for bidirectional communication, and the device is available in both SOIC wide-body (DW) and extra-wide body (DWW) packages. Technically, the ISO7842FDWW uses a capacitive isolation barrier with an on-off keying (OOK) modulation scheme, which provides high-speed data transfer with low propagation delay and skew. The device features an enable pin for output control and a fail-safe mode that defaults to a known state when the input is unpowered. The wide supply range and level translation capability allow direct interfacing with different logic levels, simplifying system design. The device is designed to meet reinforced isolation requirements, providing double protection for safety-critical applications. Typical applications include industrial fieldbus communication, motor drives, power inverters, and isolated SPI/UART interfaces. The ISO7842FDWW is also used in medical equipment, test and measurement instruments, and renewable energy systems where galvanic isolation is required. Its high-speed capability and robust isolation make it ideal for applications demanding reliable data transfer across an isolation barrier. When designing with the ISO7842FDWW, ensure proper PCB layout with adequate creepage and clearance distances to maintain the isolation rating. Place decoupling capacitors close to the VCC pins and follow the manufacturer's guidelines for barrier spacing. The device's high CMTI requires careful attention to layout to minimize parasitic coupling and maintain signal integrity.

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ISPLSI - Lattice In-System Programmable Logic Family | CPLD
ISPLSI

ISPLSI - Lattice In-System Programmable Logic Family | CPLD

The Lattice Semiconductor ISPLSI family is a series of high-density, in-system programmable CMOS Complex Programmable Logic Devices (CPLDs) introduced in the early 1990s. The flagship ispLSI 1016 device delivers 2000 PLD gates with 96 registers, 32 universal I/O pins, 4 dedicated inputs, and 3 dedicated clock inputs in a 44-pin package. The family spans multiple sub-series including ispLSI 1000, 2000, 2000E, 2000VE, 3000, 5000V, 8000, and 8000V with gate counts from 1K to 45K and macrocell counts from 32 to 480. A CPLD (Complex Programmable Logic Device) is a type of programmable logic that combines multiple PAL/GAL-like logic blocks on a single chip with a programmable interconnect network. In the broader taxonomy, CPLDs sit alongside FPGAs in the programmable logic category, but use non-volatile EEPROM or flash configuration memory and a deterministic AND-OR logic fabric. Unlike SRAM-based FPGAs, most ispLSI devices retain their configuration without external boot memory, enabling instant-on operation - an important advantage for glue logic, bus interfacing, and power-up deterministic state machine applications. The ispLSI family pioneered 5V in-system programmability (ISP) via a 4-wire JTAG-like interface, allowing devices to be re-programmed on a populated PCB without removing the chip. This eliminated the expensive UV-erase window and programmer sockets required by earlier EPLDs. The Global Routing Pool (GRP) provides complete, deterministic 100% connectivity between all logic blocks and I/O pins with predictable timing - critical for replacing discrete 74-series glue logic in industrial and telecom designs. The ispLSI 2000E sub-family extends the architecture to 32 to 128 macrocells with 1K to 4K gates, while the ispLSI 5000V series scales to 256 macrocells with 12K gates. The ispLSI 8000V reaches 480 macrocells and 45K gates. All members share the same Lattice development flow using ispLEVER or ispDesignEXPERT software. Typical applications include peripheral bus interfacing, address decoding, state-machine replacement of discrete logic, and TTL/CMOS logic consolidation. When designing with ispLSI devices, ensure the JTAG ISP pins (TMS, TCK, TDI, TDO) are accessible for in-system programming. Use Lattice's recommended decoupling (typically 0.1uF per VCC pin) and follow the GRP routing guidelines for predictable timing. Most ispLSI devices are now classified as mature or discontinued by Lattice, so designers should evaluate ispMACH 4000 or MachXO2/XO3 as modern replacements for new designs.

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ISPLSI 1032-60LT - 128-Macrocell 5V CPLD, 60MHz, TQFP-100 | Lattice
1032-60LT

ISPLSI 1032-60LT - 128-Macrocell 5V CPLD, 60MHz, TQFP-100 | Lattice

The Lattice Semiconductor ISPLSI 1032-60LT is a high-density in-system programmable Complex Programmable Logic Device (CPLD) from the ispLSI 1000 family, delivering 6000 PLD gates, 128 macrocells, and 192 registers in a 100-pin TQFP surface-mount package. It operates from a single 4.75 V to 5.25 V supply and provides a maximum propagation delay of 20 ns (60 MHz fMAX). According to the Lattice ispLSI 1032 datasheet, the device integrates 64 universal I/O pins, eight dedicated input pins, four dedicated clock input pins, and a Global Routing Pool (GRP) that distributes signals across the chip with predictable, fixed delay. What is a CPLD? A Complex Programmable Logic Device is a non-volatile programmable logic IC that sits between simple SPLDs/PLAs and large FPGAs in the programmable-logic taxonomy (CPLD -> PLD -> programmable logic -> digital semiconductor). It uses a small-block, sum-of-products architecture with macrocells, making it ideal for implementing wide combinational and registered logic, glue logic, bus decoding, state machines, and address decoding. Unlike SRAM FPGAs, the ispLSI 1032 is non-volatile and in-system programmable via a standard 5-pin JTAG chain, so designs can be updated on production hardware without removing the device. Key features of the ISPLSI 1032-60LT include 32 logic elements (each containing 16 macrocells with associated I/O), 6000 gates of usable logic, 4 dedicated clock inputs feeding four global clock buffers, asynchronous clear and preset per register, JTAG/IEEE 1149.1 boundary-scan test support, and 5 V CMOS I/O with TTL-compatible thresholds. The GRP provides a deterministic, fixed interconnect delay regardless of placement, simplifying timing closure for registered and combinatorial logic. Typical applications include wide address decoding, bus interface glue logic, state-machine controllers, peripheral interface latching, fast counters, frequency and pulse-width measurement, and any design requiring non-volatile, deterministic-timing 5 V glue logic in industrial control, telecom backplane, and embedded processor bus systems. When designing with this device, ensure the 5 V supply is within the 4.75 V to 5.25 V range and that all I/O banks are referenced to a single 5 V rail. Decouple VCC with 0.1 uF and 10 uF capacitors close to the pins. Note that Lattice's own ispMACH 4000V is the recommended modern replacement family for new designs. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone.

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ISPLSI1016E-125LT44 - 2K Gates, 64 Macrocells, 125 MHz CPLD | Lattice
ISPLSI1016E-125LT44

ISPLSI1016E-125LT44 - 2K Gates, 64 Macrocells, 125 MHz CPLD | Lattice

The Lattice Semiconductor ISPLSI1016E-125LT44 is a 5 V in-system programmable high-density Complex Programmable Logic Device (CPLD) from the ispLSI 1000E family, delivering 2K usable gates, 64 macrocells, and 96 registers in a 44-pin TQFP (LT44) package. It achieves a pin-to-pin propagation delay (tPD) of 7.5 ns and a maximum operating frequency (fMAX) of 125 MHz, making it suitable for high-speed glue logic and bus-interface bridging in industrial and legacy embedded systems. A CPLD (Complex Programmable Logic Device) is a non-volatile programmable logic device that combines multiple PAL-like macrocell arrays with a central interconnect fabric. CPLDs sit alongside FPGAs in the programmable logic hierarchy, but are distinguished by their deterministic timing, instant-on non-volatile configuration (typically E2CMOS), and lower logic density. The ISPLSI 1000E family belongs to Lattice's first-generation ispMACH-era devices, designed for fast I/O decoding, state-machine replacement, and peripheral interfacing in 5 V systems. Key features of the ISPLSI1016E-125LT44 include 32 universal I/O pins, four dedicated input pins, three dedicated clock input pins, and one global output-enable input routed through a Global Routing Pool (GRP) that provides complete interconnectivity between all logic elements. The device supports 5 V in-system programmability (ISP) via IEEE 1149.1 boundary-scan, enabling firmware upgrades without removing the part from the board. Programmable interconnect and macrocell registers allow designers to replace multiple discrete TTL/CMOS packages with a single non-volatile device. The ispLSI 1016E architecture partitions logic into four Generic Logic Blocks (GLBs), each containing 16 macrocells, a 32-bit product-term array, and dedicated clock/reset/preset control. The GRP delivers 100% connectivity between GLBs and I/O cells with predictable, fixed delays that simplify static timing closure. An on-chip diagnostic TAP allows read-back of programmed state for in-system verification, a feature rare among 5 V CPLDs of this generation. Typical applications include industrial control glue logic, ISA/PCI bus address decoding, peripheral interfacing (UART, FIFO, bus controllers), 5 V legacy system upgrades, and state-machine replacement on 3.3 V-5 V mixed boards. Its 5 V tolerance and industrial temperature grade make it a long-life component for factory automation, instrumentation, and telecom backplane designs where newer 3.3 V-only CPLDs cannot be used directly. When designing with this part, note that the LT44 (TQFP-44) footprint differs from the 44-pin PLCC variant (LJ44). Verify pinout compatibility before PCB rework. Decoupling caps (0.1 uF plus 10 uF bulk) should be placed within 5 mm of each VCC pin, and unused I/O pins must be configured as outputs with defined logic levels to minimize quiescent current. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers source and integrate legacy ispLSI parts confidently.

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