Circuitos Integrados

ISO1042DWVR

ISO1042DWVR - 5 Mbps Reinforced Isolated CAN | Texas Instruments (Tape & Reel)

The Texas Instruments ISO1042DWVR is a digitally isolated CAN transceiver supporting classic CAN up to 1 Mbps and CAN FD up to 5 Mbps, with ±70 V DC bus-fault protection and a ±30 V common-mode voltage range in an 8-pin wide-body SOIC package. The DWV package provides reinforced isolation with a 5000 VRMS withstand rating and a specified loop delay of 152 ns. An isolated CAN transceiver is an interface IC that combines a CAN physical-layer driver and receiver with digital isolation between the bus and the logic-side controller. This device hierarchy—CAN transceiver, isolated interface IC, interface IC, and semiconductor—separates the noisy external bus from the host domain while preserving communication with a CAN controller. Galvanic isolation helps limit ground potential differences and improves fault containment in industrial, automotive, and transportation systems. The ISO1042DWVR supports the ISO 11898-2:2016 physical-layer standard. Its principal protections include ±70 V DC bus fault protection and operation across a ±30 V common-mode range. These ratings are particularly useful in electrically noisy installations where ground shifts or accidental bus-to-ground faults can exceed normal CAN operating voltages. The 5 Mbps CAN FD capability also allows higher-throughput communication than the 1 Mbps classic CAN limit. The digital isolation barrier provides 5000 VRMS withstand capability, while the 152 ns loop delay supports deterministic signal propagation between the bus and logic domains. The device integrates a CAN transmitter, receiver, isolation barrier, and protection circuitry, reducing the number of external interface components required. Its wide-body SOIC package also provides increased pin spacing for isolation applications. Typical uses include isolated industrial CAN links, electric-vehicle subsystems, transportation equipment, robotics controllers, building automation, and high-voltage battery-management interfaces. In these systems, the ISO1042DWVR can connect a bus through its CAN side while presenting conventional logic-level RXD and TXD signals to an isolated controller domain. PCB design must preserve the isolation barrier, route the CAN bus and transceiver output away from sensitive logic, and place protection and bypass components directly at the relevant pins. Bus shielding, a defined reference network, and appropriate common-mode termination should be validated at system level. The 8-pin SOIC-8 package must not be confused with narrower 8-pin SOIC variants or non-pin-compatible isolated CAN devices.

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ISO1042QDWQ1

ISO1042QDWQ1 - 5 Mbps Isolated CAN FD | Texas Instruments

Texas Instruments ISO1042QDWQ1 is an automotive, galvanically isolated CAN transceiver with a 16-pin SOIC package. It supports CAN FD operation up to 5 Mbps and meets the ISO11898-2 (2016) specifications. The transceiver provides ±70-V DC bus fault protection and a ±30-V common-mode voltage range, making it suitable for CAN networks exposed to automotive electrical transients. A CAN transceiver, also called a CAN controller interface, connects a controller or microcontroller to a differential Controller Area Network bus. A controller area network is a deterministic, multiplexed communication system widely used in automotive electronics, industrial automation, and embedded control. The galvanically isolated implementation belongs to the interface IC hierarchy and creates a protective barrier between the bus-side circuitry and the logic-side circuitry. The ISO1042QDWQ1 combines several network-protection functions. Its ±70-V DC bus fault protection helps the device survive sustained DC faults on CANH or CANL. The ±30-V common-mode range allows the transceiver to operate when the bus nodes sit substantially above or below the local ground reference. CAN FD support up to 5 Mbps enables faster payload transfer than classic CAN while retaining a familiar CAN bus interface. Isolation is especially valuable when the CAN bus is electrically distant from the host electronics or when ground-offset conditions cannot be tightly controlled. By separating the bus-side and logic-side portions of the transceiver, the ISO1042QDWQ1 helps limit propagation of noise and fault energy. The automotive-qualified ordering option supports designs that require a component intended for extended-temperature automotive environments. Typical applications include electric vehicle powertrain controllers, body and comfort modules, battery-management systems, industrial vehicle networks, industrial automation equipment, and other embedded systems that combine CAN communication with high-side fault tolerance. The 5-Mbps capability is useful for gateways, diagnostics interfaces, and control modules moving more data than a classic CAN network. PCB design should preserve the isolation barrier between logic-side and bus-side copper, maintain the device’s recommended input and output capacitance, and route bus traces away from sensitive analog or high-speed digital signals. Decoupling capacitors should be placed close to their associated supply pins, while the CAN bus connections require careful return-path and surge-current planning. This page combines the manufacturer’s product specifications, drop-in family alternatives, parameter comparisons, and practical interface-design guidance. It also highlights the distinction between bus-fault protection, common-mode tolerance, CAN FD data rate, and galvanic isolation so engineers can evaluate the device against the actual electrical environment of the target network.

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ISO1042QDWRQ1

ISO1042QDWRQ1 - 5Mbps Isolated CAN FD | Texas Instruments

The Texas Instruments ISO1042QDWRQ1 is an automotive galvanically isolated CAN transceiver supporting data rates up to 5 Mbps and implemented in a 16-pin SOIC package. It meets ISO11898-2 (2016), provides ±70-V DC bus-fault protection, and operates across a ±30-V common-mode voltage range. The device combines a CAN controller-side interface with a bus-side transceiver in one isolated package. A CAN transceiver is the physical-layer interface between a CAN controller and a Controller Area Network bus. It converts logic-level transmit and receive signals into differential CAN bus signals, while providing galvanic isolation between those domains. This separation reduces ground-potential and fault-energy paths, making the transceiver suitable for electrically demanding automotive, industrial, and communications equipment that uses the ISO11898-2 CAN standard. Key features include a maximum data rate of 5 Mbps in CAN FD mode, ±70-V DC bus-fault protection, and a ±30-V common-mode range. The 16-pin SOIC package provides enough pins for the isolated logic interface, isolation barrier, CAN bus side, and bypass connections. The automotive-rated ISO1042-Q1 family is intended for systems where robust fault handling and high-speed CAN FD communication are important. The ISO1042-Q1 architecture separates the controller-side TXD and RXD signals from the CANH and CANL bus terminals with an internal isolation barrier. Its high fault tolerance lets the bus interface withstand severe DC bus faults without immediately compromising the logic side. During normal operation, the bus side supports high-speed CAN FD communication, while the isolated logic side connects to a CAN controller through digital transmit, receive, enable, and power connections. Typical uses include automotive body and chassis controllers, electric-vehicle power domains, industrial automation equipment, robotics, medical carts, and other embedded systems that need a robust isolated CAN interface. In an automobile, the transceiver can connect a low-voltage controller to a CAN bus exposed to battery transients and wiring faults. In factory equipment, isolation helps bridge control electronics and field-bus wiring across different ground references. Design the PCB with short CANH and CANL traces, a continuous return path beneath the bus pair, and the bus-side bypass capacitor placed close to the device. Keep isolation-side and bus-side copper areas separated according to the Texas Instruments datasheet layout guidance. The isolation barrier components and supply networks must also follow the specified creepage and clearance requirements, particularly in high-voltage automotive environments.

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ISO1042QDWVQ1

ISO1042QDWVQ1 - 5Mbps Isolated CAN FD | Texas Instruments

The Texas Instruments ISO1042QDWVQ1 is an automotive galvanically isolated CAN FD transceiver supporting data rates up to 5 Mbps, ±70-V DC bus fault protection, and a ±30-V common-mode voltage range. It is designed around the ISO11898-2:2016 CAN standard and is available in the ISO1042-Q1 family for isolated controller area network communication. A CAN transceiver is the physical-layer interface between a CAN controller and a two-wire differential bus. ISO1042-family devices combine bus-driver and receiver functions with digital isolation, allowing a controller-side logic domain to communicate with a bus-side domain while reducing common-mode and ground-potential hazards. This transceiver belongs to the CAN interface IC, interface IC, and semiconductor hierarchy used in automotive and industrial networks. Key features include operation up to 5 Mbps in CAN FD mode, ±70-V DC bus fault protection, and a ±30-V common-mode range. The isolation barrier separates logic-side and bus-side circuits, while flexible data rate support permits substantially faster payload transfer than classical CAN. These characteristics suit systems that must combine high-speed data transfer with robust protection against automotive electrical transients. The ISO1042-Q1 family meets the ISO11898-2:2016 specification and is positioned for automotive and industrial CAN networks. Its primary interface functions include transmit, receive, bus-fault handling, and isolation. The 16-pin wide-body SOIC package supports surface-mount assembly while providing enough lead spacing for inspection and rework in demanding electronics manufacturing processes. Typical applications include electric-vehicle powertrain and body networks, industrial automation equipment, robotics controllers, diagnostic systems, and isolated CAN links between high-voltage systems and low-voltage controllers. In these systems, the isolated transceiver can link a CAN FD-capable controller to a protected network while helping maintain functional separation between circuit domains. Designers should pay close attention to bus termination, common-mode range, grounding, isolation-capacitor placement, and the exact pin assignments in the manufacturer datasheet. The 5-Mbps operating rate also requires controlled printed-circuit-board layout, short differential routing, and compliant CAN physical-layer timing. Automotive programs should additionally verify qualification, traceability, and sourcing requirements with the manufacturer. This page combines the manufacturer specifications, practical isolation-interface guidance, a same-package replacement comparison, and selection criteria that help engineers distinguish electrical protection, automotive qualification, and interface compatibility before committing a board design.

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ISO1042QDWVRQ1

ISO1042QDWVRQ1 - Isolated CAN Transceiver 5Mbps 8-SOIC | TI

The Texas Instruments ISO1042QDWVRQ1 is an automotive-grade, galvanically-isolated controller area network (CAN) transceiver that meets the ISO11898-2 (2016) standard, delivering up to 5 Mbps data rate in CAN FD mode and housed in an 8-pin SOIC (DWV) package with 2.5 kV RMS isolation (per VDE 0884-11). An isolated CAN transceiver is a type of bus interface IC that combines a standard CAN physical-layer transceiver with on-chip galvanic isolation. The ISO1042QDWVRQ1 sits between a microcontroller's CAN controller and the physical CAN bus, eliminating ground loops, blocking high common-mode transients, and protecting low-voltage domain circuitry from hazardous bus-side faults. In the broader taxonomy, this device is an isolated transceiver -> CAN transceiver -> bus interface IC -> interface IC -> signal-conditioning/isolation semiconductor. Key features include ±70-V DC bus fault protection (the highest in TI's automotive isolated CAN family), ±30-V common-mode voltage range for robust operation in 12 V and 24 V automotive/industrial buses, 5 Mbps CAN FD flexible data rate support, 1.7 V to 5.5 V logic-side supply with 4.5 V to 5.5 V bus-side supply, and 250 kV/µs typical common-mode transient immunity (CMTI). The half-duplex DWV variant consumes only one logic-side channel and supports a wide -40°C to +125°C operating range qualified to AEC-Q100 Grade 1 for automotive use. The device uses TI's proprietary silicon-dioxide (SiO2) capacitive isolation barrier coupled with an integrated differential CAN PHY. The internal architecture separates the digital interface (TXD, RXD, controller-side supply) from the bus-side driver/receiver with a reinforced isolation barrier rated for 400-VRMS or 2.5 kVRMS working voltages. This eliminates the need for external isolators, optocouplers, or discrete isolated DC-DC converters, reducing PCB area by up to 50% versus optocoupler-based discrete implementations. Typical applications include automotive body and chassis ECUs (BCM, gateway modules), electric vehicle battery management system (BMS) communication, industrial CANopen networks, solar inverter communication buses, PLC distributed I/O, and any 12 V / 24 V system that requires robust CAN communication with reinforced isolation. Designers select the ISO1042QDWVRQ1 when regulatory isolation certification, automotive-grade qualification, and high bus fault tolerance are simultaneously required. Design tip: the bus-side VCC2 pin must be supplied from a 4.5 V to 5.5 V rail; a low-ESR 1 µF to 10 µF ceramic decoupling capacitor placed within 2 mm of VCC2 is required. The logic-side VCC1 can run from 1.7 V to 5.5 V, allowing direct connection to 1.8 V, 3.3 V, or 5 V MCUs without level translation. This page synthesizes distributor pricing, drop-in alternative listings, and practical design notes not found in the manufacturer datasheet.

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ISO1044BD

ISO1044BD - 5 Mbps Galvanically Isolated CAN FD | Texas Instruments

The Texas Instruments ISO1044BD is a galvanically isolated CAN FD transceiver with a 5 Mbps maximum data rate, ±58 V DC bus-fault protection, and a ±12 V common-mode operating range, housed in an 8-pin SOIC package. It is designed for CAN networks that require reinforced electrical isolation between the bus and the host electronics. An isolated CAN transceiver is an interface circuit that transfers CAN signals across a galvanic isolation barrier while protecting the connected controller from voltage differences, ground faults, and bus transients. The ISO1044BD is a half-bus CAN transceiver within the broader hierarchy of CAN interface ICs, interface ICs, and industrial communication semiconductors. Its isolation barrier helps prevent ground-loop current and improves fault containment in industrial equipment. The device meets ISO11898-2 (2016) and supports CAN FD operation up to 5 Mbps. The ISO1044B family provides ±58 V DC bus-fault protection and tolerates ±12 V common-mode voltage. The manufacturer describes the isolation rating as 5000 Vrms reinforced, while the SOIC-8 package reduces board area compared with a discrete optocoupler-based isolation implementation. The ISO1044BD integrates the CAN physical-layer transceiver and isolation barrier into one package. The digital CAN TX and RX interfaces remain electrically separated from the CAN bus side, allowing the transceiver to operate with the local logic supply and ground referenced to the controller. CAN FD increases payload capacity compared with classic CAN while retaining compatibility with established CAN network architecture. Typical uses include industrial automation controllers, electric motor drives, robotics, building automation, CAN-based sensors, and isolated service interfaces. It is particularly suitable when ground potentials can vary between equipment cabinets or when a bus fault could otherwise transfer damaging energy into the control system. Designers should use the manufacturer-specified CAN bus protection network, isolation capacitors, and PCB creepage and clearance rules. The SOIC-8 package still requires careful isolation-barrier routing; copper, solder mask, and component placement must not bridge the isolated and non-isolated domains. This product page consolidates verified manufacturer capabilities, distributor availability, comparison parameters, and practical isolation-layout guidance, adding engineering context beyond the basic manufacturer product summary while clearly identifying specifications that still require confirmation from the full datasheet.

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ISO1050DWR

ISO1050DWR - 5V Isolated CAN Transceiver | Texas Instruments

The Texas Instruments ISO1050DWR is a galvanically isolated CAN transceiver meeting the specifications of the ISO11898-2 standard. It provides a 1/1 isolated half CANBus interface, separates logic-side and bus-side buffers with a silicon oxide (SiO2) insulation barrier, and supports isolation up to 5000 V RMS for ISO1050DW. The device is packaged in a 16-pin SOIC and is intended for industrial communication systems where ground-potential differences and high common-mode bus noise must be contained. An isolated CAN transceiver is a network interface IC that combines CAN physical-layer signaling with a galvanic isolation barrier. It belongs to the broader hierarchy of CAN transceiver, isolated interface IC, industrial communication interface, and semiconductor. The ISO1050DWR allows a CAN controller or microprocessor on the logic side to communicate with a CAN bus through the isolated bus side, while preventing ground currents and high-voltage transients from propagating across the barrier. Key verified features include ISO11898-2 compliance, isolated 5 V CAN operation, 16-pin SOIC packaging, and a 1/1 transceiver configuration. The manufacturer specifies 5000 V RMS isolation for the ISO1050DW package variant and 2500 V RMS for the ISO1050DUB variant. The silicon oxide insulation barrier is intended to suppress noise and prevent dangerous ground loops in industrial environments. The ISO1050DWR is suited to industrial automation, transportation equipment, building controls, and isolated CAN networks. Its logic-side interface connects to a CAN controller, while the bus-side interface connects to CAN_H and CAN_L conductors. The isolated transceiver should be used with an isolated power supply so that the isolation barrier is not undermined by a shared ground path. A key design consideration is that isolation does not eliminate the need for correct bus termination, common-mode protection, or isolated-supply design. The 16-pin SOIC footprint supports conventional surface-mount assembly, while the tape-and-reel designation identifies the production packing format for high-volume manufacturing. This page combines verified manufacturer and distributor information with practical design guidance for isolated CAN implementations.

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ISO106

ISO106 - 70 kHz 3500 Vrms Isolation Amplifier | Texas Instruments

Texas Instruments ISO106 is a single-circuit isolation buffer amplifier rated for 3500 Vrms isolation, operating to 70 kHz bandwidth, and housed in a 16-lead 40-CDIP package. It is intended for transferring analog signals across a high-voltage isolation barrier while electrically separating the input-side and output-side circuits. The manufacturer literature identifies ISO106 as a capacitive-coupled isolation-buffer-amplifier product with a 0.600-inch, 15.24 mm-wide side-brazed CDIP package. An isolation amplifier is a signal-conditioning IC that transfers information across an electrically isolated barrier. Unlike an ordinary operational amplifier, its input and output domains are designed to withstand high voltage without a direct conductive connection. In the broader hierarchy, ISO106 belongs to amplifiers, isolation amplifiers, interface ICs, and signal-conditioning semiconductors. Its primary role is protecting low-voltage sensing, measurement, and control circuitry from a high-voltage or high-energy environment. The verified manufacturer description states that ISO102 and ISO106 share electrical performance but differ in accuracy and isolation rating. ISO106 is rated for 3500 Vrms and uses a 40-pin DIP package in the cited manufacturer PDF, while distributor catalog data identifies the ISO106 as a 16-CDIP device. Because the supplied sources contain a package-description inconsistency, engineers should confirm the exact ordering code, lead count, and mechanical drawing before PCB layout or replacement qualification. ISO106's 70 kHz bandwidth makes it suitable for signal paths that require isolation without extremely high-frequency operation. Potential uses include industrial instrumentation, power-system monitoring, data acquisition, medical equipment, and test systems where a sensor or transducer is physically separated from the processing electronics. The isolation barrier can reduce fault-energy coupling and prevent ground currents from disturbing sensitive measurements. Design with ISO106 requires close attention to the datasheet's isolation rating, supply arrangement, input and output common-mode limits, bandwidth, accuracy, and package pinout. The input-side and output-side grounds should remain appropriately separated, and external protection may be needed for surge or transient conditions. PCB creepage, clearance, insulation coordination, and the required isolation barrier must be evaluated in the complete system rather than inferred from the amplifier alone. This page consolidates the verified distributor identification, manufacturer datasheet link, package information, isolation rating, bandwidth, and sourcing observations for ISO106. It also distinguishes verified facts from missing parameters and avoids treating generic cross-reference results as confirmed drop-in replacements.

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ISO106B

ISO106B - 70 kHz Isolation Amplifier | Texas Instruments

The Texas Instruments ISO106B is a single-circuit signal isolation buffer amplifier with a 70 kHz bandwidth, available in a 16-lead ceramic DIP package. The verified distributor description identifies it as an isolation amplifier intended for instrumentation, operational-amplifier, and buffer-amplifier applications. Its through-hole hermetic-style package and isolation-oriented signal path are the key procurement and design identifiers. An isolation amplifier is a precision signal-conditioning component that transfers a low-level input signal across an electrically isolated barrier while preserving signal integrity. In the broader electronics hierarchy, an isolation amplifier belongs to the instrumentation-amplifier and signal-isolation categories, which are used when a measurement or control system must prevent ground loops, reject high common-mode voltage, or protect sensitive circuitry from hazardous or high-voltage environments. The verified listing specifies a 70 kHz operating bandwidth and a 16-CDIP package for ISO106B. The CDIP designation indicates a ceramic dual-inline package with 16 leads. Other electrical details, including supply voltage, isolation withstand voltage, input range, gain, noise, input impedance, output impedance, and temperature range, were not included in the supplied source data and therefore must be confirmed from the manufacturer datasheet before design release. Typical signal-chain uses include isolated sensor conditioning, industrial measurement interfaces, medical-instrument signal acquisition, communications isolation, and high-voltage measurement front ends. The amplifier should be selected based on the required bandwidth, common-mode range, isolation rating, supply architecture, package footprint, and whether the system requires a hermetic ceramic package rather than a plastic surface-mount package. For PCB design, preserve the isolation barrier and observe the datasheet's recommended creepage, clearance, grounding, decoupling, and pin-routing requirements. Do not treat an isolation amplifier as an unrestricted safety barrier without verifying its rated voltage, installation category, and applicable system safety requirements. The source data identifies a 16-lead CDIP package, so through-hole layout and connector or socket mechanics may influence assembly choice. This page synthesizes the verified distributor identity, package, bandwidth, sourcing information, and engineering limitations for ISO106B. Because the supplied evidence does not establish a manufacturer datasheet URL, pin mapping, detailed electrical limits, lifecycle status, compliance declarations, or validated drop-in replacements, those fields are intentionally marked for verification rather than inferred.

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ISO107

ISO107 - 20 kHz Internally Powered Isolation Amp | Texas Instruments

The Texas Instruments ISO107 is a single-channel, high-voltage, internally powered isolation amplifier with a 16-CDIP package. It operates across a 20 kHz bandwidth and provides an 8000 Vpk test voltage plus a 2500 Vrms continuous AC barrier rating. Its wide input signal range reaches +10 V, while the built-in isolated supply provides output-side power up to ±18 V. These features make it suitable for industrial measurement, power-conversion feedback, motor-control, and other systems requiring signal transfer across a high-voltage barrier. An isolation amplifier is a signal-conditioning IC that transfers information across an electrically isolated barrier while minimizing galvanic coupling between input and output domains. Unlike an ordinary operational amplifier, an isolation amplifier combines input amplification, barrier protection, and isolated output circuitry. In the broader electronics hierarchy, ISO107 belongs to the isolation-amplifier category and interface-amplifier family. The supplied data identifies signal and power in one triple-wide package, 8000 Vpk test voltage, 2500 Vrms continuous AC barrier rating, a +10 V wide input signal range, and 20 kHz small-signal and full-power bandwidth. Its internally powered output reduces the need for a separate isolated power supply, simplifying the output side of high-voltage systems. The 16-CDIP mechanical format is suited to through-hole industrial and laboratory equipment rather than compact surface-mount designs. ISO107's bandwidth is appropriate for many measurement and control signals, but it is not intended for high-frequency communications or precision wideband signal capture. The isolation barrier is the principal system constraint: layout, creepage, clearance, grounding, and insulation requirements must be evaluated against the actual working voltage and safety target. The 2500 Vrms rating is a barrier capability stated in the supplied source data, not a substitute for application-specific safety certification. Typical uses include isolated current or voltage sensing in power supplies, feedback across high-side or low-side barriers, industrial process monitoring, laboratory instrumentation, and motor-control systems. The isolated ±18 V output capability can power downstream circuitry when the load and output-side power requirements remain within the device limits. For robust implementation, preserve the package's isolation geometry, keep high-voltage and low-voltage routing separated, and follow the manufacturer datasheet for decoupling, input range, output loading, and maximum rated voltages. Because several detailed operating limits and a current verified pinout are not included in the supplied data, those values remain marked for data collection rather than being guessed. This page combines distributor availability, package information, sourced technical highlights, application guidance, and a strict replacement-screening framework. The alternative section intentionally reports no verified drop-in substitutions because the supplied cross-reference results did not identify a pin-compatible candidate.

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ISO113

ISO113 - 1500Vrms Isolation Amplifier | Texas Instruments

The Texas Instruments ISO113 is an internally powered output isolation amplifier rated for continuous 1500Vrms operation, supplied in a 16-pin double-wide 0.6-inch sidebraze DIP package. It provides one isolation-amplifier circuit, a 10V to 18V supply range, and a 1.5V/µs slew rate. The device combines an isolated signal path, isolation barrier, and output-side power in one package. An isolation amplifier is an analog signal-conditioning component that transfers a measurement from a high-potential or electrically noisy input domain to a grounded output domain while preventing conductive current between those domains. In the hierarchy of electronic components, ISO113 belongs to the isolation-amplifier category, analog signal chain, and instrumentation interface. It is used where ground potentials differ, safety isolation is required, or a sensor signal must cross a high-voltage barrier. The ISO113's self-contained isolated signal and output power removes the need for a separate isolated power supply on the output side. Its wide barrier-pin spacing and internal insulation support the 1500Vrms continuous AC barrier rating. The 16-CDIP package is a through-hole, double-wide DIP rather than a compact surface-mount isolator. The reported 1.5V/µs slew rate makes it suitable for instrumentation signals requiring a practical response to changing input waveforms. Barrier capacitance is minimized to reduce AC leakage currents, while 100% barrier breakdown testing is reported to conform to UL1244 test methods. The ISO113 is therefore suited to industrial measurement, sensor-interface, data-acquisition, and power-system signal-isolation systems where the required voltage separation is central to the design. Typical applications include isolated sensor readout, industrial process measurement, medical-instrument signal conditioning, power-converter feedback isolation, and high-voltage equipment monitoring. The component should be selected only when its 10V to 18V supply, 1500Vrms continuous barrier rating, through-hole package, and available electrical performance meet the system requirements. For PCB layout, preserve the isolation creepage and clearance defined by the manufacturer datasheet and do not route unrestricted copper across the isolation barrier. Check supply decoupling, input common-mode limits, output loading, and the required safety standard for the finished equipment before production release. This page combines verified manufacturer and distributor information, package and barrier details, application guidance, and the available substitution search results. Because the supplied data does not establish five pin-compatible drop-in replacements, the alternatives section does not add unverified substitutes.

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ISO113B

ISO113B - 1.5kVrms Internally Powered Isolation Amp | TI

The Texas Instruments ISO113B is a single-circuit, internally powered output isolation amplifier with a 1500 Vrms continuous AC barrier rating and a 16-CDIP package. It provides 20 kHz bandwidth and is designed to transfer analog signals across a high-voltage isolation boundary while deriving output-side power internally. The verified distributor data identifies a through-hole, 16-terminal ceramic DIP package with 0.600-inch side-braze construction. An isolation amplifier is a signal-conditioning amplifier with a galvanically isolated signal path. Its hierarchy is isolation amplifier, instrumentation amplifier, amplifier, analog IC, and semiconductor. This category protects measurement equipment and personnel from common-mode voltage while preserving a defined relationship between an input signal and its isolated output. Unlike a conventional differential amplifier, the ISO113B deliberately separates the input-side and output-side power domains through an isolation barrier. The primary verified features include self-contained isolated signal and output power, a 1500 Vrms continuous AC barrier rating, and a small double-wide side-braze DIP outline. Its 20 kHz bandwidth makes it suitable for slow industrial-control, power-system, and instrumentation signals rather than high-speed communications. The internally powered output eliminates the need for a separate isolated output supply in circuits designed around this device. The ISO113B belongs to the ISO113 low-cost, high-voltage, internally powered output isolation-amplifier family. The B suffix is retained exactly as supplied; the verified data does not state the meaning of that suffix or its grade. Consult the manufacturer datasheet before production use because detailed gain, input range, isolation capacitance, timing, temperature limits, and supply requirements were not included in the supplied records. Typical applications include isolated current measurement, motor-drive sensing, industrial data acquisition, power-supply monitoring, and high-voltage equipment interfaces. In each case, the amplifier can bridge a measurement domain electrically separated from the processing side. Designers must still preserve the specified isolation creepage, clearance, package geometry, bypass requirements, and common-mode limits. The key design consideration is that the CDIP-16 package is through-hole and larger than modern surface-mount isolation packages. Board space, lead spacing, assembly tooling, and isolation-region layout must therefore be planned around the verified 0.600-inch side-braze DIP outline rather than assumed from a surface-mount library. This page consolidates the supplied manufacturer-family description, distributor identification, package data, sourcing links, and cross-reference results. It also distinguishes verified facts from parameters that require the complete manufacturer datasheet, avoiding unsupported guesses while supporting component selection and procurement.

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ISO120BG

ISO120BG - Precision 60kHz Isolation Amplifier | Texas Instruments

The Texas Instruments ISO120BG is a precision low-cost isolation amplifier with a stated 60 kHz bandwidth and a 24-lead hermetic DIP package. The verified distributor listing identifies the device as a single isolation-amplifier circuit, while the ISO120 family description identifies duty-cycle modulation and demodulation across a differential capacitive barrier. The device is intended for signal transfer across an isolation boundary where the input and output grounds must remain electrically separated. An isolation amplifier is a specialized interface amplifier that transfers an analog signal while maintaining galvanic isolation between the input-side and output-side circuitry. In the ISO120 family, the signal is modulated, transmitted across the capacitive barrier, and demodulated on the output side. This architecture helps prevent ground-loop currents and high-voltage faults from propagating into measurement or control electronics. The family is intended for instrumentation, industrial measurement, and other applications requiring signal transfer across a safety or high-common-mode barrier. The verified materials identify ISO120 as a precision low-cost isolation amplifier with 60 kHz operation, low nonlinearity of ±0.01% maximum, bipolar operation, and user control of carrier frequency. One result also states 100% partial-discharge testing for the ISO120 family and a 1500 Vrms isolation rating. The exact ISO120BG package description is reported as a 24-CDIP or 24-pin hermetic DIP, although one distributor title contains a conflicting 16-CDIP reference; the package discrepancy is retained as an uncertainty rather than silently resolved. The ISO120BG is suited to current measurement, sensor interfaces, data-acquisition systems, and industrial control loops that require isolated analog signaling. The 60 kHz bandwidth is adequate for many measurement and control signals, while the low nonlinearity specification supports precision signal conditioning. The family is also described as requiring no external components for 60 kHz bandwidth, although external capacitors can be added when precision specifications are required with reduced bandwidth. Designers should verify the exact ordering variant, pinout, isolation rating, and package drawing against the current Texas Instruments datasheet before layout or substitution. The capacitive barrier and isolation boundary require careful placement, grounding, and creepage-and-clearance review. Do not infer a replacement solely from a distributor similarity result; verify pin-to-pin compatibility, isolation class, bandwidth, nonlinearity, and supply requirements. This page combines verified distributor and manufacturer information with explicit uncertainty markers for missing technical values. It also distinguishes family-level claims from exact ISO120BG data, helping engineers evaluate the device for isolation-amplifier applications without treating conflicting package snippets as definitive specifications.

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ISO120G

ISO120G - Precision Isolation Amplifier | Texas Instruments

The Texas Instruments ISO120G is a precision low-cost isolation amplifier designed for bipolar input measurement and galvanic signal isolation. The device is associated with a 1500 Vrms isolation rating, a 50 mV input range, and operation from ±4.5 V to ±18 V supplies. Verified distributor information identifies ISO120G as a 16-lead CDIP, while another listed source describes the related ISO120 family in a 24-pin hermetic DIP configuration. The exact package interpretation requires confirmation against the ordering information for the ordered MPN. An isolation amplifier is an analog signal-conditioning component that transfers a voltage or current measurement across an electrically isolated barrier. It belongs to the instrumentation-amplifier and isolation-interface hierarchy, with isolation providing protection against high common-mode voltage, ground-potential differences, and hazardous electrical environments. The ISO120 family is intended for industrial control, data acquisition, power-system monitoring, and test equipment where accurate measurement must remain separated from the protected circuitry. The ISO120G is described as a precision, low-cost isolation amplifier with low nonlinearity, bipolar operation, and user control of carrier frequency. The verified material specifically identifies ±0.01% maximum nonlinearity and 150 µV/°C maximum offset-voltage drift under the stated 6 kHz bandwidth condition. It also describes 100% partial-discharge testing for ISO120 and a 1500 Vrms isolation rating. These features make the device relevant to systems requiring signal fidelity as well as galvanic isolation. The ISO120 family uses isolation between the input and output sides while preserving a scaled representation of the input signal. Its precision characteristics are useful for current-shunt measurement, transducer interfaces, power-conversion feedback, and industrial instrumentation. The listed 60 kHz bandwidth capability supports applications that require a faster response than a slow precision-only measurement path, while the 6 kHz capacitor-assisted specification provides an alternative when maximum linearity and drift are priorities. Typical implementation involves connecting the isolated input signal, supplying power on both sides of the barrier, and routing the differential output to an ADC or analog processing circuit. Layout must preserve the isolation barrier, maintain adequate creepage and clearance, and provide the required bypassing. The component should not be replaced solely because another isolation amplifier performs a similar function; package geometry, pinout, supply range, isolation rating, bandwidth, and input range must all be verified. This page consolidates verified manufacturer and distributor information while identifying unresolved package and ordering details transparently. It also explains the isolation-amplifier category, practical design considerations, and the distinction between documented product data and information that still needs manufacturer confirmation.

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ISO120G-BI

ISO120G-BI - 60 kHz Precision Isolation Amplifier | Texas Instruments

Texas Instruments ISO120G-BI is a precision, low-cost isolation amplifier with 60 kHz bandwidth, 1500 Vrms rated isolation, and maximum nonlinearity of 0.01%. It is packaged for installation as a 16-lead CDIP according to the DigiKey product listing. The device is designed to transfer analog measurement signals across an isolation barrier while providing low distortion, controlled carrier-frequency behavior, and bipolar operation. An isolation amplifier is a type of instrumentation amplifier that separates an input signal from its output reference by galvanic isolation. This category sits within instrumentation amplifiers, analog signal-chain ICs, interface ICs, and broader semiconductor systems. It is useful when the measured node is at a hazardous or high-potential voltage, or when ground differences between connected equipment could otherwise disrupt signal measurement or damage downstream circuitry. The verified ISO120 family information identifies a 1500 Vrms isolation rating, high input common-mode rejection at 60 Hz, user control of carrier frequency, and maximum nonlinearity of 0.01%. The ISO120 and ISO121 families can achieve precision operation without external components at 60 kHz bandwidth. Adding two external capacitors permits guaranteed precision specifications of 0.01% maximum nonlinearity and 150 uV/°C maximum voltage-offset drift with a reduced 6 kHz bandwidth. The ISO120G-BI is intended for analog instrumentation, industrial measurement interfaces, current-sensing systems, data-acquisition equipment, and isolated sensor front ends. Its 60 kHz signal bandwidth supports measurements that need more response than a slow precision-only configuration, while the 0.01% nonlinearity specification helps preserve amplitude accuracy. Carrier-frequency control provides an additional design consideration because filter selection, system emissions, and synchronization can be affected by the modulation scheme. Designers should use the manufacturer datasheet for the exact pin names, isolation creepage and clearance dimensions, recommended input and output networks, and supply arrangements. The input signal range, supply voltages, input offset voltage, input impedance, output impedance, and isolation lifetime were not supplied in the verified excerpts and therefore require confirmation before schematic release. Verify that the selected 16-lead footprint, isolation rating, bandwidth, nonlinearity, and package dimensions meet the final system requirements. This product page consolidates the verified manufacturer description, distributor package and inventory information, family-level isolation and precision characteristics, drop-in replacement findings, and practical selection considerations. It distinguishes confirmed ISO120 family data from parameters that still require datasheet verification, helping engineers avoid assigning unsupported precision, safety, or lifecycle assumptions.

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ISO120SG

ISO120SG - Precision Isolation Amplifier | Texas Instruments

The Texas Instruments ISO120SG is a precision, low-cost isolation amplifier with a 60 kHz bandwidth, low nonlinearity, and a 2 pF differential capacitive isolation barrier. The supplied distributor data identifies a 16-lead CDIP configuration for ISO120SG, although another distributor listing states 24-CDIP with 16 leads; the package designation must therefore be confirmed against the manufacturer ordering information before PCB release. An isolation amplifier is an instrumentation-amplifier derivative that transfers a differential input signal across a galvanic-isolation barrier while preventing conductive current between the input and output domains. The ISO120 family uses duty-cycle modulation and demodulation to encode the analog input as a carrier signal, cross the capacitive barrier, and recover it at the output. This architecture makes the device suitable for measuring low-level signals in electrically noisy or hazardous environments where a common ground cannot be shared. According to the supplied manufacturer and distributor references, the ISO120SG is a one-circuit isolation amplifier with 60 kHz signal bandwidth, bipolar operation, low nonlinearity, and user control of carrier frequency. The ISO120 family is also described as 100% tested for partial discharge and rated for 1500 Vrms isolation; these claims should be checked against the applicable ISO120 datasheet before using the part in a safety-critical design. The family supports operation without external components for 60 kHz bandwidth, while two external capacitors can enable precision specifications at reduced bandwidth. Typical uses include industrial process-control channels, isolated sensor interfaces, medical monitoring equipment, power-conversion feedback, data-acquisition systems, and galvanically isolated communications. The isolation barrier allows a field-side input circuit and output-side signal chain to use separate ground domains, reducing common-mode current paths and protecting sensitive equipment from ground-potential differences. The key design issue is package verification. DigiKey describes ISO120SG as a 16-CDIP part, while Heisener describes a 24-CDIP package with 16 leads. Do not select a footprint or publish a complete pinout until the exact ordering suffix and mechanical drawing are confirmed. Also verify whether the required isolation rating, creepage, clearance, and barrier construction fit the final safety standard. This page consolidates the verified manufacturer identification, distributor descriptions, sourcing references, and application guidance while marking unresolved package and detailed electrical values rather than guessing them.

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ISO1211D

ISO1211D - 24V-60V Isolated Digital Input | Texas Instruments

The Texas Instruments ISO1211D is a single-channel isolated digital input receiver designed for 24V to 60V digital input modules, with an 8-pin SOIC (D) package. It supports 9V to 300V DC and AC input designs when used with external resistors, while providing accurate current limiting for low-power dissipation. The device targets PLC digital input interfaces and industrial control systems. An isolated digital input receiver converts field-side voltage states into a logic signal presented to a controller or other electronics. The ISO1211 belongs to the isolated-interface IC hierarchy and replaces conventional optocoupler input stages with an integrated receiver designed for high-side industrial input conditions. Its isolation function protects control-side circuitry from field-side electrical conditions while transferring the input state. Key verified features include compliance with IEC 61131-2 Type 1, 2, and 3 characteristics for 24V isolated digital inputs, bipolar input support, broken-wire detection, and an operating temperature range from -40C to +125C. The current limit is specified as 2.2mA to 2.47mA for Type 3 designs. The SOIC package provides eight terminals and is identified by TI as package code D. The ISO1211D is intended for programmable logic controllers, motor-control systems, grid infrastructure, and other industrial equipment with isolated digital inputs. External resistors set the supported field-input voltage range, so the final input network must be selected according to the intended DC or AC voltage and the applicable IEC 61131-2 input type. The receiver architecture allows the field interface to be designed without reproducing a discrete optocoupler circuit. Designers should verify the complete pinout, isolation requirements, resistor values, voltage ratings, and input thresholds against the manufacturer datasheet before production. The verified product page identifies ISO1211D as an 8-pin SOIC (D) device rated from -40C to +125C. Its principal engineering value is integration of a field-input receiver into a compact, application-specific interface for industrial control equipment. This page consolidates verified manufacturer and distributor information, IEC 61131-2 compatibility information, package data, application context, and design guidance. It does not infer unreported electrical values, invent pricing, or substitute a different package simply to create an alternative.

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ISO1211DR

ISO1211DR - 24V-60V Isolated Digital Input | Texas Instruments (Tape & Reel)

The Texas Instruments ISO1211DR is a single-channel isolated digital input receiver designed for 24V to 60V digital input modules, with an 8-pin SOIC (D) package. It supports 9V to 300V DC and AC input designs when used with external resistors, while providing accurate current limiting for low-power dissipation. The device targets PLC digital input interfaces and industrial control systems. An isolated digital input receiver converts field-side voltage states into a logic signal presented to a controller or other electronics. The ISO1211 belongs to the isolated-interface IC hierarchy and replaces conventional optocoupler input stages with an integrated receiver designed for high-side industrial input conditions. Its isolation function protects control-side circuitry from field-side electrical conditions while transferring the input state. Key verified features include compliance with IEC 61131-2 Type 1, 2, and 3 characteristics for 24V isolated digital inputs, bipolar input support, broken-wire detection, and an operating temperature range from -40C to +125C. The current limit is specified as 2.2mA to 2.47mA for Type 3 designs. The SOIC package provides eight terminals and is identified by TI as package code D. The ISO1211DR is intended for programmable logic controllers, motor-control systems, grid infrastructure, and other industrial equipment with isolated digital inputs. External resistors set the supported field-input voltage range, so the final input network must be selected according to the intended DC or AC voltage and the applicable IEC 61131-2 input type. The receiver architecture allows the field interface to be designed without reproducing a discrete optocoupler circuit. Designers should verify the complete pinout, isolation requirements, resistor values, voltage ratings, and input thresholds against the manufacturer datasheet before production. The verified product page identifies ISO1211DR as an 8-pin SOIC (D) device rated from -40C to +125C. Its principal engineering value is integration of a field-input receiver into a compact, application-specific interface for industrial control equipment. This page consolidates verified manufacturer and distributor information, IEC 61131-2 compatibility information, package data, application context, and design guidance. It does not infer unreported electrical values, invent pricing, or substitute a different package simply to create an alternative.

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ISO121BG

ISO121BG - ±10V Precision Isolation Amplifier 3500Vrms | Texas Instruments

The Texas Instruments ISO121BG is a precision isolation amplifier with ±10V bipolar input range, 3500Vrms isolation rating, and 0.01% maximum nonlinearity, housed in a 16-pin CDIP_SB (JVD) through-hole package. It is part of TI's Burr-Brown isolation amplifier family and uses duty-cycle modulation-demodulation across a 2pF differential capacitive barrier. An isolation amplifier is a specialized differential amplifier that provides galvanic isolation between its input and output stages, breaking ground loops and protecting downstream circuitry from high-voltage transients. Within the broader signal-chain hierarchy, isolation amplifiers sit between instrumentation amplifiers (which amplify small differential signals) and digital isolators (which only pass logic levels). They combine precision analog front-end conditioning with reinforced isolation, making them essential in systems where analog signals must cross a safety barrier. Key features of the ISO121BG include user control of the carrier frequency for synchronization, 100% partial discharge testing, high common-mode rejection (IMR) at 60Hz, and bipolar operation across its ±10V input range. The part is rated for -55C to +125C operation and is specified for the 16-pin side-brazed ceramic DIP (CDIP_SB) package designed for high-voltage isolation applications. The device uses duty-cycle modulation to encode the analog input as a digital pulse train that crosses a 2pF capacitive isolation barrier; the output side demodulates this pulse train back to an analog voltage. Because modulation is digital, the barrier's analog imperfections (nonlinearity, drift, aging) do not corrupt signal integrity, yielding 0.01% max nonlinearity and stable gain over time. Typical applications include precision voltage sensing in motor drives, shunt-based current sensing in high-voltage systems, isolated process-control signal acquisition, medical patient monitoring with reinforced isolation, and ground-loop elimination in industrial 4-20mA loops. Designers choose the ISO121BG when the application demands 3500Vrms isolation (vs. the 1500Vrms ISO120) and excellent DC accuracy at industrial temperatures. When designing with the ISO121BG, pay attention to PCB layout: keep input and output grounds physically separated by the package isolation barrier, use star-grounding at the power supplies, and place the external oscillator capacitor as close to the OSC pin as possible to minimize carrier-frequency drift and IMR degradation. This page synthesizes distributor stock levels, drop-in ISO12x family alternatives, and practical PCB layout guidance not found in the manufacturer datasheet alone.

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ISO121G

ISO121G - ±10V Precision Isolated Amplifier | Texas Instruments

The Texas Instruments ISO121G is a precision low-cost isolated amplifier with a ±10 V input range, one amplifier circuit, and a 16-pin CDIP package. According to the Texas Instruments product page, it is designed for precision voltage sensing, while the manufacturer datasheet identifies low nonlinearity, bipolar operation, and duty-cycle modulation-demodulation as central characteristics. Its isolation barrier transfers the signal digitally rather than relying on analog leakage through the barrier, helping preserve signal integrity in electrically noisy or high-voltage environments. An isolated amplifier is a signal-conditioning component that transfers a measured voltage across an electrically isolated barrier while preventing direct conductive coupling between the input and output domains. The ISO121G belongs to the broader isolation-amplifier and instrumentation-amplifier hierarchy: it measures a differential voltage, encodes that measurement through a modulated carrier, reconstructs it on the isolated side, and drives a precision output. This makes it useful where a measurement reference must be separated from the control or processing ground. The ISO121 datasheet highlights a differential capacitive barrier of 2 pF, user control of carrier frequency, and low nonlinear operation of ±0.01% maximum. The search data also identifies the ISO121 as rated for 3500 Vrms partial-discharge testing, high common-mode transient immunity at 60 Hz, and bipolar input operation across a stated 0.3-wide range in the source summary. Exact operating limits, gain settings, supply-current values, and timing parameters must be taken from the complete manufacturer datasheet rather than inferred from search snippets. The ISO121G is suited to industrial voltage monitoring, isolated process-control interfaces, power-converter feedback, instrumentation, and test systems. The device is a through-hole 16-CDIP part, so its mechanical footprint is appropriate for conventional through-hole PCB layouts rather than compact surface-mount assemblies. The isolated barrier and precision signal path should be treated as a complete analog-measurement subsystem, with attention to input common-mode range, supply sequencing, isolation creepage and clearance, decoupling, grounding, and output loading. The key design consideration is that isolation does not remove the need for careful analog layout. Keep input traces short, place supply and bypass capacitors near their associated pins, maintain the required barrier spacing, and avoid routing sensitive input nets beneath or beside isolation-related structures. Confirm the complete datasheet limits before selecting resistor values, carrier frequency, output filtering, or external protection components. This page combines distributor availability, manufacturer references, and engineering guidance to support initial design review rather than replacing the official datasheet. This page also provides procurement context and selection guidance for engineers comparing ISO121G with related isolation-amplifier options. Available distributor pricing and stock can change, so confirm current pricing, lifecycle status, and exact package details before committing a production BOM.

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ISO122JP

ISO122JP - Precision 50 kHz Isolation Amplifier | TI

The Texas Instruments ISO122JP is a precision, low-cost isolation amplifier with 0.020% maximum nonlinearity, 50 kHz signal bandwidth, and 200 V/°C input-offset-voltage drift, supplied in an 8-PDIP package. It supports bipolar ±10 V operation, uses a fixed unity-gain configuration, and requires no external components for operation. An isolation amplifier is a precision analog signal-conditioning component that transfers a voltage signal across a galvanic isolation barrier while electrically separating input-side and output-side circuits. In the signal-chain hierarchy, the ISO122 belongs to the isolation-amplifier family, instrument-amplifier class, analog front end, and broader semiconductor category. Its built-in matched capacitive barrier supports high-voltage isolation and reduces the need for external isolation-network design. The ISO122 uses duty-cycle modulation and demodulation to transmit the input signal across a differential capacitive barrier. Key verified specifications include 1500 Vrms high-voltage breakdown rating, 50 kHz bandwidth, 0.020% maximum nonlinearity, and 200 V/°C input-offset-voltage drift. Its power-supply range is 4.5 V to 18 V, while stated quiescent currents are 5 mA on VS1 and ±5.5 mA on VS2. The device is intended for precision analog measurement and signal conditioning where isolated sensing improves safety or reduces ground-loop effects. The fixed unity-gain architecture simplifies implementation, and the manufacturer states that no external components are required for basic operation. The available package options include plastic DIP and surface-mount configurations, with ISO122JP identified by distributors as an 8-PDIP device. Typical uses include isolated current measurement, industrial sensor interfaces, medical monitoring, power-conversion feedback, and laboratory instrumentation. The 50 kHz bandwidth supports signals above very-low-frequency sensing but is not intended for high-speed data acquisition. The main design consideration is ensuring the isolation barrier, creepage, clearance, supply bypassing, and input/output grounding meet the safety requirements of the target installation. This page combines verified manufacturer specifications, distributor product information, and cross-reference findings. Cross-reference results identify related ISO124 devices, but the supplied evidence does not establish a verified pin-to-pin drop-in replacement for ISO122JP; alternatives are therefore limited and clearly qualified.

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ISO122JPE4

ISO122JPE4 - Precision Isolation Amplifier | Texas Instruments

The Texas Instruments ISO122JPE4 is a precision low-cost isolation amplifier with a single amplifier channel, a 50 mV input range, a 50 kHz bandwidth, and 1.5 kV isolation capability. The device is supplied in an 8-pin plastic DIP package, identified by distributor listings as 8-PDIP or a 16-DIP mechanical outline with 8 leads. The isolation amplifier uses duty-cycle modulation and demodulation, transmitting the analog signal digitally across a 2 pF differential capacitive barrier. This architecture supports galvanic isolation between the input and output sides while preserving the behavior of a precision isolated measurement channel. According to the Texas Instruments product description and the distributor records verified on 2026-10-30, ISO122JPE4 is designed for cost-sensitive industrial instrumentation, isolated sensor interfaces, and measurement systems where a compact 8-pin DIP package and reinforced isolation are useful. The verified listing describes the device as a precision low-cost isolation amplifier operating from 4.5 V to 18 V, with 50 mV input range, 1.5 kV isolation, and 50 kHz bandwidth. Its isolated signal path can help reduce ground-loop errors and protect low-voltage sensor circuitry when the measured equipment operates at a different potential. The 8-pin DIP outline is suitable for conventional through-hole PCB layouts and prototype instrumentation, although designers should verify creepage, clearance, and isolation requirements against their final board construction. The ISO122JPE4 is distinct from the related ISO122P and ISO122JP variants, so package suffix, electrical limits, temperature range, and production status should be checked before substituting. This page synthesizes the verified manufacturer and distributor information with practical selection guidance and explicitly identifies unavailable electrical details rather than estimating them.

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ISO122JU

ISO122JU - 50kHz Precision Isolation Amplifier | Texas Instruments

The Texas Instruments ISO122JU is a precision, low-cost isolation amplifier with one isolation channel, a 50 kHz signal bandwidth, 0.020% maximum nonlinearity, and an 8-pin SOIC package. It uses a 4.5 V to 18 V power-supply range and fixed unity-gain operation. The isolation amplifier’s specified input-side quiescent current is 5 mA, while its output-side supply current is ±5.5 mA. These characteristics make ISO122JU suitable for industrial measurement, current sensing, data acquisition, and power-conversion feedback where galvanic isolation and accurate signal transfer are required. An isolation amplifier is an analog signal-conditioning device that transfers a voltage signal across a galvanic-isolated barrier while preventing a conductive electrical connection between input and output circuits. The isolation amplifier hierarchy includes isolation amplifier, signal conditioner, analog interface, and semiconductor. ISO122JU places matched 1 pF capacitors inside the plastic package and transmits a duty-cycle-modulated representation of the input signal across the barrier. This architecture supports high-voltage isolation and reduces the need for external signal-conditioning components. The principal ISO122 features include 0.020% maximum nonlinearity, 50 kHz signal bandwidth, and 200 V/°C input-offset-voltage drift. Its fixed unity-gain configuration simplifies circuit design because no external gain-setting network is required. The manufacturer states that no external components are required for operation. Its isolation-oriented construction is particularly useful when measuring voltage across a high-side shunt or when a control, instrumentation, or protection domain must remain electrically separated from a hazardous or high-voltage domain. The device is available in an 8-pin SOIC package, identified by the JU ordering code. The verified distributor listing describes ISO122JU as a one-circuit, 8-SOIC isolation amplifier. Its power supplies must meet the stated 4.5 V to 18 V range, and the circuit designer should account for independent supply requirements on the input and output sides. The listed quiescent-current specifications are 5 mA on VS1 and ±5.5 mA on VS2, making supply budgeting important when several isolation channels share a regulated rail. Typical applications include isolated current measurement in power converters, motor-control feedback, industrial sensor interfaces, medical-equipment signal acquisition, and high-voltage process monitoring. The fixed unity gain and 50 kHz bandwidth simplify many measurement paths, but applications requiring substantially wider bandwidth, higher accuracy, adjustable gain, or different isolation ratings should be compared against other isolation amplifiers before committing to the ISO122JU. For PCB layout, treat the isolation barrier as a controlled high-voltage region rather than an ordinary signal path. Confirm the package pinout against the manufacturer datasheet, observe the creepage and clearance requirements applicable to the installation, and avoid placing unprotected copper or test pads across the isolation boundary. The component is an analog interface device rather than a power semiconductor, so SOA data is not applicable. This page consolidates the verified manufacturer specifications, distributor package identification, official datasheet link, and practical selection considerations for engineers evaluating the ISO122JU.

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ISO122JU/1K

ISO122JU/1K - 50kHz Isolation Amp | Texas Instruments

The Texas Instruments ISO122JU/1K is a precision, low-cost isolation amplifier with a ±10 V bipolar input range, 50 kHz signal bandwidth, 1500 Vrms working isolation voltage, and a fixed unity-gain configuration, housed in an 8-pin SOIC package. The device is designed for voltage-sensing systems that require signal transfer across a high-voltage barrier without a direct galvanic connection. An isolation amplifier is a specialized signal-conditioning IC that combines input amplification, electrical isolation, and output amplification in one package. In the broader semiconductor hierarchy, it belongs to the analog amplifier family and the industrial signal-chain category. Its capacitive barrier separates the input side from the output side, allowing measured voltages to be transferred safely while minimizing common-mode interference and ground-potential errors. The ISO122JU/1K offers maximum nonlinearity of 0.020%, input offset-voltage drift of 200 V/°C, and a nominal 2 pF differential capacitive barrier. Its fixed unity-gain architecture simplifies implementation by avoiding an external feedback network. The 50 kHz bandwidth supports rapidly changing process-control and instrumentation signals, although it is not intended for high-frequency communications waveforms. Operationally, the ISO122 uses a novel duty-cycle modulation and demodulation technique to transmit the input signal digitally across the differential capacitive barrier. This architecture supports bipolar input operation and fixed unity gain while maintaining a compact 8-pin SOIC footprint. The verified manufacturer listing identifies 5 mA quiescent current on VS1 and ±5.5 mA on VS2, with a 4.5 V to 18 V power-supply range. Typical uses include industrial process-control loops, motor and solenoid current monitoring, power-supply feedback isolation, high-voltage sensor interfaces, data-acquisition systems, and isolated communications front ends. The 1500 Vrms working isolation rating and high-frequency common-mode rejection are particularly useful when a sensor ground differs substantially from the measurement-system ground. Designers should verify the complete power-supply arrangement, input common-mode range, isolation boundary, and output-load requirements against the manufacturer datasheet. The input and output grounds must remain isolated from one another; joining them would bypass the principal safety function. Decoupling should be placed directly at the supply pins, while the analog input path should minimize leakage and high-impedance contamination around the sensitive input node. This product data combines verified manufacturer specifications, distributor availability, package information, and explicitly qualified replacement analysis. It also distinguishes genuine drop-in alternatives from merely similar isolation amplifiers, helping engineers avoid substitutions that change pin functions, supply requirements, signal bandwidth, or isolation architecture.

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Subcategorias

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