Circuitos Integrados

LM555CMX

LM555CMX - 100kHz Single Timer | Texas Instruments | 8-SOIC

The Texas Instruments LM555CMX is a single 555-type timer and oscillator with a maximum timing frequency of 100 kHz, housed in an 8-pin SOIC surface-mount package. It combines three complementary 5 kΩ comparators, an SR flip-flop, and a high-current output stage to support monostable, astable, and Schmitt-trigger timing circuits. The device is intended for timers from microseconds through hours, according to the manufacturer datasheet, and operates in the 0°C to 70°C commercial-temperature range. A 555 timer is a programmable timing integrated circuit that determines an output transition from the charging and discharging of an external timing capacitor. In the broader semiconductor hierarchy, the LM555 belongs to the timer and oscillator family, within clock and timing integrated circuits and power-management-adjacent signal-control devices. Its internal comparators and flip-flop allow an external resistor-capacitor network to establish delay, repetition rate, or pulse width without digital programming. The LM555CMX supports three principal operating modes. In monostable operation, a trigger pulse creates one timed output pulse. In astable operation, the output oscillates continuously and can produce a duty cycle below 50% when the discharge path is used. In Schmitt-trigger operation, the internal thresholds generate a clean output transition from a slowly changing analog voltage. These functions make the timer useful for pulse generation, delay circuits, missing-pulse detection, tone generation, and simple power-control timing. Its internal architecture is based on three comparators that monitor the timing-capacitor voltage, the trigger voltage, and the reset input. The flip-flop records comparator decisions, while separate bipolar output transistors provide a standard output and a higher-current discharge path. The 100 kHz operating limit establishes the upper end of the usable timing-frequency range, while the exact minimum and maximum timing values depend on the selected external resistance and capacitance. Typical applications include industrial control timers, LED flashers, audio tone generators, delayed relay activation, pulse-width shaping, and oscillator-based clocking for small embedded systems. The SOIC-8 package supports compact surface-mount assembly while preserving the familiar eight-pin 555 interface. A timing capacitor and associated resistors remain external, allowing the circuit designer to select timing values rather than relying on a fixed internal delay. The primary design consideration is preserving adequate timing-capacitor headroom for the trigger and threshold limits while keeping the discharge and control-node waveforms valid. Use the manufacturer's recommended resistor and capacitor ranges, account for component tolerances, and decouple the supply pin close to the device. Because this is a bipolar timer rather than a low-power CMOS timer, verify output-drive, supply-current, and timing requirements when operating from a constrained power source. This page combines the LM555CMX timing characteristics and package information with practical mode-selection guidance, pin-assignment context, drop-in alternatives, and design notes intended to accelerate schematic review, PCB planning, sourcing, and legacy-maintenance work.

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LM555CN

LM555CN - 100kHz Single Timer | DIP-8 | Timing Control

The Texas Instruments LM555CN is a single 555-type timer and oscillator IC operating from 4.5 V to 16 V, with a maximum timing frequency listed as 100 kHz, in an 8-pin through-hole DIP package. It generates accurate timing pulses in monostable or astable configurations and includes trigger and reset terminals for external control. A 555 timer is a general-purpose timing controller within the broader clock and timing IC category. Its internal architecture combines a voltage reference, voltage comparators, a flip-flop, and a high-current output stage. Two resistors and one capacitor set the astable frequency and duty cycle, while one resistor and one capacitor set the monostable pulse delay. Key verified characteristics include a 4.5 V to 16 V supply range, a maximum frequency of 100 kHz, TTL-compatible interfacing, and support for both astable and monostable operation. The LM555CN is supplied as an 8-DIP device, matching the classic through-hole timer footprint and making it suitable for legacy control boards, educational hardware, prototypes, and repair applications. In astable mode, the output oscillates continuously between two threshold levels set by the external timing network. In monostable mode, a low-going trigger starts one timing cycle and produces a timed output pulse. The reset input can force the timer into its stable state, while the output stage provides the drive needed for standard digital logic loads. Typical applications include pulse generation, delay circuits, oscillators, debounce timers, PWM generation, LED flashers, and industrial control pulse shaping. Because the DIP package exposes all eight pins, the device is also convenient for breadboard prototyping and timing experiments where a surface-mount package would be inconvenient. When designing a replacement circuit, verify trigger polarity, output polarity, output-drive requirements, and timing tolerance rather than assuming every 555 variant is electrically identical. CMOS alternatives may have lower supply current but different output-drive and timing characteristics, while bipolar alternatives generally provide stronger output sourcing and sinking capability. This page combines the verified LM555CN supply, package, frequency, and timing-mode information with same-footprint alternatives, application guidance, and practical selection criteria that are not consolidated in a single manufacturer datasheet.

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LM556

LM556 - Dual Timer 4.5-16V | Texas Instruments

The Texas Instruments LM556 is a dual timer integrated circuit containing two independent 555-type timing sections in a 14-pin narrow SOIC package. Each section can operate as an astable oscillator or a monostable one-shot, while sharing only the common VCC and ground connections. The device operates from 4.5 V to 16 V, supports timing intervals from microseconds to hours, and provides TTL-compatible output drive. A dual timer is an integrated timing circuit that combines threshold sensing, trigger control, discharge switching, and an output stage in each timer section. In the broader semiconductor hierarchy, the LM556 is a timer and oscillator within clock and timing integrated circuits. Its two independent sections can generate delayed pulses, control switching waveforms, flash lamps, pace sequential events, or provide two related timing functions without requiring two separate single-timer packages. Each LM556 timing function uses an external timing resistor and timing capacitor. The trigger input can initiate a one-shot pulse, while the threshold input provides feedback for astable oscillation. A control-voltage input permits the timing reference to be adjusted within the limits defined by the manufacturer datasheet. The two timer sections operate independently, so one circuit can perform timing while the other handles a related but separate delay or pulse-generation function. The LM556 operates across a 4.5 V to 16 V supply range. Many operating characteristics apply from 0 °C to 70 °C, while the Electrical Characteristics section identifies parameters that vary with voltage or temperature. The cited temperature-stability figure is 0.005% per °C, indicating how the timing characteristic can change across temperature. The output stage is TTL compatible, which supports interfacing with standard digital logic when the operating and load conditions are appropriate. Typical uses include two-stage sequential timers, LED and lamp flashers, pulse-width control, delayed-action circuits, simple audio pulsation, industrial control timing, and laboratory pulse generators. Because each section can be configured independently, the LM556 is especially useful when a design needs two timing functions but does not justify two separate timer packages. The shared supply and ground pins also simplify the power architecture. The principal design consideration is ensuring that timing-component values, discharge-device limits, control-voltage behavior, and output loading remain within the datasheet limits. Because both sections share VCC and ground, bypassing and return-current paths should support both timer sections operating simultaneously. Pin assignments should be checked against the exact SOIC footprint before PCB release. This page consolidates the LM556 timing functions, operating limits, package details, application guidance, and verified replacement information into an engineering-focused reference. It also identifies where pin-compatible substitution requires additional datasheet and qualification review rather than treating package similarity alone as sufficient approval.

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LM556CM

LM556CM - Dual 555 Timer | Fairchild | Industrial

The Fairchild Semiconductor LM556CM is a dual 555-type timer and oscillator integrated circuit packaged in a 14-SOIC. It operates from 4.5 V to 16 V, supports timing or oscillation functions up to 3 MHz, and provides TTL-compatible normally on and normally off outputs. The device combines two independent timer sections in one package, reducing component count in circuits that require two adjustable time intervals or dual-frequency outputs. A 555-type timer is a programmable timing IC that can operate as an astable oscillator or a monostable pulse generator. In astable mode, external resistors and a capacitor establish repetitive switching, while the output produces a continuous waveform. In monostable mode, a trigger starts one timed output pulse. The LM556CM places two such timer functions in a single 14-SOIC package, making it useful where PCB area is constrained. The principal verified specifications include a 4.5 V to 16 V supply range, operation up to 3 MHz, and TTL-compatible normally on and normally off outputs. The dual architecture allows both timer sections to be used together or independently. Its 14-SOIC package is a surface-mount package compatible with conventional automated PCB assembly, although exact board dimensions and pin mapping must be confirmed against the selected manufacturer datasheet before layout. The LM556CM combines two classic 555-type timing blocks with separate timing and output functions. Its operating range supports conventional 5 V and 12 V system rails, while the stated upper limit of 16 V provides additional design headroom. The 3 MHz maximum operating frequency identifies it as a general-purpose timing solution rather than a precision real-time-clock or low-frequency timer. Typical uses include industrial pulse generation, retriggerable delay circuits, dual-tone generation, LED flashers, motor or solenoid timing, test equipment, and general control systems. Two timers in one package can simplify designs that need independent delays, complementary pulse outputs, or two adjustable waveforms while reducing the number of external IC footprints. Circuit design should account for timing-component tolerances, supply decoupling, output loading, and the required trigger and reset levels. Because the verified data identifies the package and core ratings but does not provide a complete pin map or detailed output-current limits, engineers should verify those details in the manufacturer datasheet for the exact branded source being procured. This page consolidates verified distributor data, source links, package information, drop-in sourcing alternatives, and practical selection guidance. It is designed to support faster engineering comparison while clearly identifying specifications that require confirmation from the exact manufacturer datasheet.

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LM556CN

LM556CN - Dual Timer, 4.5-16V, 14-DIP | onsemi

The onsemi LM556CN is a dual-programmable timer integrated circuit containing two independent 555-compatible timer sections in a 14-pin DIP package. It operates from 4.5 V to 16 V, supports both astable and monostable operation, and provides timing intervals ranging from microseconds to hours. Each timer uses an external resistor and capacitor to establish its timing characteristics, allowing one package to replace two separate single timers. A dual timer is a timing and oscillator IC that generates controlled time delays or periodic waveforms. Within the product hierarchy, the LM556CN belongs to the timer and oscillator class, the clock and timing category, and ultimately the broader semiconductor and integrated-circuit ecosystem. Its two timer sections can operate independently, making it useful when a design needs two related timing functions without allocating two separate packages. Verified device features include operation in both astable and monostable modes, high output current with TTL compatibility, adjustable duty cycle, and temperature stability of 0.005% per degree Celsius. The specified supply range of 4.5 V to 16 V supports both conventional 5 V logic systems and higher-voltage industrial control environments. Many operating characteristics apply from 0°C to 70°C, as stated in the manufacturer datasheet. Each internal timer includes threshold, trigger, output, reset, discharge, and control functions. In monostable mode, the circuit produces one timed pulse after a trigger event. In astable mode, it repeatedly charges and discharges an external timing capacitor and drives an output waveform. The output stage can sink and source relatively high current and remains TTL compatible, reducing the need for added output-driver circuitry in many applications. Typical uses include industrial pulse and delay generation, LED and indicator flashing, periodic sampling triggers, simple clock or oscillator circuits, and two-channel debounce or delay systems. The DIP-14 package also supports through-hole insertion and replacement of two discrete 555 timers, although legacy DIP construction should be considered for new compact designs. Designers should preserve the timing-capacitor and timing-resistor connections near the appropriate IC pins and account for temperature and supply sensitivity when setting long delays. Decoupling should minimize supply disturbances, while reset and trigger signals require suitable logic levels and clean transitions. Verify the exact pin functions and electrical limits in the manufacturer datasheet before layout or production use.

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LM567CM

LM567CM - 8-SOIC Tone Decoder | Texas Instruments

The Texas Instruments LM567CM is a general-purpose tone decoder IC in an 8-pin SOIC package. The device uses a voltage-controlled oscillator and I/Q detection circuitry to identify a selected audio-frequency tone and activate a saturated transistor switch to ground when the input signal falls within the selected passband. The verified product information identifies a 4.75 V to 9 V supply range, 12 mA supply current, 0°C to 70°C operating temperature range, and 1.10 W power rating. LM567CM is commonly used for telephone, communications, remote-control, tone-selective signaling, and embedded audio-tone detection systems. A tone decoder is a signal-processing IC that converts the presence or absence of a particular frequency into a digital or switch-level output. The LM567 belongs to the broader tone-decoder, frequency-detection, interface, and signal-processing categories. Its oscillator sets the center frequency of the decoder, while the input detector evaluates the relationship between the incoming signal and that oscillator frequency. This makes the device useful when a system must make a hardware decision based on an analog tone rather than relying entirely on software frequency analysis. The LM567CM is packaged in an 8-pin narrow SOIC and is specified for a single decoder circuit. The verified electrical data indicates a 4.75 V minimum supply voltage and 9 V maximum supply voltage, with a supply current of 12 mA. Its 0°C to 70°C operating range makes it a commercial-temperature device rather than an explicitly automotive-grade or extended-temperature part. The listed 1.10 W power value should be treated as the maximum published power rating, not as typical dissipation in every operating condition. The LM567 family provides a saturated transistor output to ground when the input tone is present within the passband. In a typical circuit, the device is combined with resistors and capacitors that establish oscillator frequency, bandwidth, and filtering behavior. Component tolerances and temperature drift determine the practical center-frequency accuracy and detection bandwidth. Designers should also account for input signal level, supply decoupling, output pull-up requirements, and the possibility that the transistor output conducts whenever the detector is asserted. Typical applications include telephone line tone decoding, communications equipment, audio signaling, remote-control receivers, frequency-selective alarm systems, industrial control interfaces, and embedded tone recognition. In each case, the LM567CM provides a hardware output that can be read by a microcontroller or used to control a relay, indicator, or other system actuator. The circuit is especially useful when a fast, simple tone decision is required without allocating processor resources to a complete spectrum-analysis algorithm. For a reliable implementation, place the LM567CM close to its timing and filter components, use a stable supply with local bypass capacitance, and verify the selected oscillator components against the required tone frequency. The output transistor is brought to ground when a tone is detected, so the application must provide the correct pull-up arrangement and must not assume an actively driven high output. The manufacturer datasheet should be used for the exact pinout, timing equations, output ratings, and recommended application circuit. This product record combines the verified LM567CM specifications with a same-package alternative review, practical tone-decoder design guidance, and a parameter-oriented comparison of available replacements. It is intended to help engineers narrow the selection quickly while preserving the need to validate pinout, electrical limits, timing, and sourcing details against the manufacturer documentation before production substitution.

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LM567CN

LM567CN - 0.5MHz Tone Decoder, 8-Pin DIP | Texas Instruments

The Texas Instruments LM567CN is a general-purpose bipolar tone decoder with a nominal decoding frequency of 0.5 MHz, one decoder circuit, and an 8-pin DIP package. It operates from 4.75 V to 9 V, draws approximately 12 mA of supply current, and is specified for a 0°C to 70°C operating-temperature range. The LM567CN detects a tone within its passband and activates a saturated transistor switch connected to ground, providing a simple digital indication of a selected frequency. A tone decoder is a frequency-selective interface integrated circuit that belongs to the broader signal-processing and communications-interface hierarchy. Its oscillator and narrowband detector determine whether an incoming signal matches the programmed center frequency. The LM567 and LM567C families are commonly used when a system must acknowledge a carrier, command frequency, or control tone without requiring a general-purpose microcontroller to perform continuous frequency analysis. Key features include one tone-decoding channel, a 4.75 V to 9 V supply range, approximately 12 mA supply current, and a saturated transistor output. The 8-pin DIP format supports through-hole PCB assembly and provides a practical migration path for designs using older tone-decoder implementations. The operating-temperature rating of 0°C to 70°C identifies this part as a commercial-temperature device rather than an extended-temperature or automotive-grade component. The LM567CN combines a frequency-selective detector with an oscillator whose timing components establish the nominal tone frequency. External resistors and capacitors set the timing and filter characteristics, while the input stage determines the signal level presented to the decoder. Its transistor output provides a straightforward interface to logic gates, relays, counters, or system-control inputs without requiring a separate analog output amplifier. Typical uses include telephone and communications signaling, remote-control receivers, industrial tone-command systems, frequency-selection modules, and embedded control systems. The LM567CN is most appropriate when a fixed or adjustable narrow-band tone must be detected reliably at a relatively high frequency compared with many audio tone decoders. System designers should verify timing tolerances, capture bandwidth, input signal level, and output-load requirements in the manufacturer datasheet. Because this is a through-hole commercial-temperature tone decoder, the primary design trade-off is implementation simplicity versus modern integration and temperature range. A microcontroller-based detector may offer programmable filtering and logging, while the LM567CN provides autonomous hardware detection with minimal firmware. This page consolidates the verified supply, power, package, functional, and cross-reference information while clearly identifying parameters that still require confirmation from the complete manufacturer datasheet.

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LM567H/B

LM567H/B - General-Purpose Tone Decoder | Rochester Electronics

Rochester Electronics, LLC LM567H/B is a general-purpose tone decoder integrated circuit designed to activate a saturated transistor output when an input signal falls within its passband. The verified source describes an I and Q detector driven by a voltage-controlled oscillator, with external components independently setting the center frequency and bandwidth. The device is supplied in a bulk package under the LM567H/B manufacturer part number, while the verified listing price starts at $34.9026 as of 2026-10-28. A tone decoder is a specialized phase-locked-loop signal-processing circuit. In the LM567 and LM567C family, the oscillator establishes the internal reference frequency, the quadrature detectors evaluate the incoming waveform, and the loop locks when the input is within the selected passband. The output transistor provides a grounded switch indication rather than a precision analog output, making the LM567H/B suitable for tone detection, signaling, remote control, communications, and industrial control functions. The verified manufacturer-linked description identifies externally adjustable center-frequency and bandwidth networks as central implementation features. Those networks allow one decoder circuit to target different operating frequencies without changing the integrated circuit. Designers must still determine the exact package dimensions, pin numbering, electrical limits, temperature range, and timing limits from the manufacturer datasheet before releasing a PCB or production design because those values are not present in the supplied verification excerpts. Typical uses include detecting an audio-frequency command tone, acknowledging a transmitted carrier, recognizing a legacy signaling frequency, or providing a hardware threshold in a control system. The transistor output can drive a downstream stage only after its current, voltage, and timing capabilities are confirmed from the datasheet. A system designer should also verify startup behavior, capture bandwidth, frequency tolerance, and supply-voltage requirements for the exact LM567H/B ordering code. Because this Rochester Electronics order code includes a /B commercial suffix and is offered in bulk packaging, procurement should confirm lifecycle status, stock, lot traceability, and equivalent original-order codes before committing to a volume build. The verified distributor listings indicate in-stock status or market availability, but quantity-dependent pricing beyond the listed starting price is not supplied. This page distinguishes directly verified facts from parameters that require manufacturer documentation, avoiding unsupported claims while preserving useful design context for engineers.

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LM7321MFX/NOPB

LM7321MFX/NOPB - 32V 20MHz RRIO Op Amp SOT-23-5 | TI

The Texas Instruments LM7321MFX/NOPB is a single-channel, rail-to-rail input and output (RRIO) operational amplifier delivering 20-MHz unity-gain bandwidth, 18-V/us slew rate, and up to 65 mA of output current from a compact 5-pin SOT-23 (DBV) package. It operates from supplies of 2.5V to 32V (up to +/-16V dual supply) while drawing only about 1 mA of supply current per amplifier. An operational amplifier (op amp) is a high-gain voltage amplifier used in the analog signal chain hierarchy: amplifier IC -> general-purpose op amp -> precision analog front end. The LM7321 belongs to the rail-to-rail op amp class, whose input and output stages swing to within millivolts of both supply rails, maximizing dynamic range in low-voltage and single-supply systems. Key differentiating features include unlimited capacitive load stability - the output drives large capacitive loads directly without external compensation - plus the high 65-mA output current that allows the device to drive heavy loads such as coaxial cables, ADC inputs, and actuator drivers. The rail-to-rail I/O architecture maintains performance across the full 2.7V, +/-5V, and +/-15V operating points specified by TI, and the wide temperature range of -40C to +125C supports industrial and automotive-adjacent designs. Internally, the LM732xx family uses a complementary input stage that seamless transfers near the rails, preserving bandwidth and phase margin across the common-mode range. The combination of 20-MHz bandwidth with only 1-mA quiescent current yields an excellent bandwidth-to-power figure compared with general-purpose parts such as the LM358. Typical applications include video and coaxial cable drivers, ADC input buffering, active filters, piezo and capacitive load drivers, test-and-measurement signal conditioning, and battery-powered portable instrumentation. The NOPB suffix indicates RoHS-compliant, lead-free terminations. Design tip: while capacitive load stability is essentially unlimited, keep supply decoupling close to the pins (100 nF per rail) and beware of thermal limits when sourcing 65 mA continuously at high output voltage swing.

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LM741-MIL

LM741-MIL - General-Purpose Operational Amplifier | Texas Instruments

The Texas Instruments LM741-MIL is a general-purpose operational amplifier intended for a wide range of analog applications. Its verified product information identifies improved performance over industry standards such as the LM709, while the listed package and detailed electrical values are not supplied in the retrieved web data. The device is associated with the LM741 series, a classic single-amplifier architecture used in integrator, summing-amplifier, and general-feedback circuits. An operational amplifier is an integrated circuit that uses high-gain differential amplification with negative feedback to create predictable closed-loop behavior. The LM741 family belongs to the broader operational-amplifier, analog-amplifier, signal-conditioning, and semiconductor categories. Its general-purpose positioning makes it relevant to educational circuits, laboratory instruments, audio signal paths, analog control systems, filters, amplifiers, and legacy equipment where an established 741-family pinout and application ecosystem may be important. According to the verified Texas Instruments product-page information, the LM741-MIL provides improved performance relative to the LM709 and is a direct plug-in replacement for the 709C, LM201, MC1439, and 748 in most applications. The same source states that its high gain and wide operating-voltage range support integrator, summing-amplifier, and general-feedback applications. Exact supply voltage, input common-mode range, output swing, gain-bandwidth product, slew rate, input bias current, offset voltage, noise, and temperature-range values are not included in the supplied evidence and therefore must be verified from the manufacturer datasheet before design use. The verified Mouser result further describes the LM741-MIL as an operational amplifier for wide-ranging analog applications. The retrieved sources also identify the manufacturer as Texas Instruments and provide links to the product page and datasheet. Because the supplied data does not establish a precise orderable package suffix, pin count, lead-free status, automotive qualification, lifecycle classification, or distributor price, those fields remain data-needed rather than inferred. Typical circuit uses include closed-loop non-inverting and inverting amplifiers, analog summing networks, active filters, integrators, transducers, and general feedback control blocks. Designers should preserve the package and pinout of the installed circuit, confirm the applicable electrical limits, and verify stability, biasing, output swing, and compensation requirements before substituting a modern amplifier. This page summarizes only verified web information and avoids adding undocumented electrical claims. For a new high-precision design, compare the LM741-MIL against modern rail-to-rail input and output amplifiers, because the LM741’s historical architecture is not automatically the best choice for low-voltage or high-speed systems. For an existing legacy board, use the verified direct-plug-in-replacement claim only after checking the exact package and pin arrangement against the current schematic and datasheet.

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LM741C

LM741C - General-Purpose 0.9 MHz Op Amp | Texas Instruments

The Texas Instruments LM741C is a general-purpose, single operational amplifier with a 0.9 MHz gain-bandwidth product, specified for operation from 0°C to +70°C, and supplied in an 8-pin package. It provides high open-loop gain, short-circuit protection, and latch-free operation for legacy analog designs. The supplied data does not identify one orderable package suffix, so the verified data references both TO-5 and PDIP variants; confirm the exact suffix before ordering or replacement. An operational amplifier is an analog integrated circuit that uses very high open-loop gain to amplify the difference between its inverting and non-inverting inputs. Negative feedback shapes the closed-loop gain, bandwidth, and impedance behavior. Within the broader hierarchy of semiconductor, analog IC, and amplifier, the LM741C is a mature general-purpose voltage-feedback amplifier commonly used where cost, tolerance of older systems, and broad compatibility matter more than low offset, low noise, rail-to-rail operation, or high speed. Key verified attributes include a 0.9 MHz bandwidth designation, high gain, short-circuit protection, and latch-free operation. The LM741C is described by Texas Instruments as identical to LM741 and LM741A except that its performance is ensured over 0°C to +70°C instead of -55°C to +125°C. This makes it appropriate for commercial-temperature legacy equipment, but not automatically acceptable where an automotive, military, or full industrial temperature rating is required. The architecture is the classic single-supply operational-amplifier approach associated with the LM741 family. Its inverting input receives feedback, its non-inverting input receives the source signal, and offset-null pins can support external adjustment where required. Unlike modern rail-to-rail, zero-crossover input-stage amplifiers, designers must preserve suitable common-mode headroom and provide adequate supply voltage. Input bias current, input offset voltage, slew rate, supply current, and maximum output swing require confirmation from the manufacturer datasheet before precision or load-dependent calculations. Typical applications include educational amplifier laboratories, basic active filters, audio preamplification, sensor-conditioning stages, instrumentation interfaces, power-control loops, and repair of vintage analog equipment. For a non-inverting amplifier, the closed-loop gain is normally set by external resistors; for an inverting amplifier, the signal enters the inverting terminal and feedback defines the gain. Component tolerances and bias-current compensation must be checked before claiming high accuracy. The principal design caution is not to assume that any pin-compatible amplifier is electrically interchangeable. Input topology, common-mode range, offset-null implementation, output swing, supply limits, noise, bandwidth, and stability differ among modern alternatives. Use a replacement only after comparing the exact package pinout and full operating envelope. If the PCB uses DIP-8, an SOIC-8 replacement is not drop-in and requires layout changes. This page combines the verified Texas Instruments and distributor-hosted LM741C information with package-qualified replacement guidance and practical integration notes. It distinguishes documented facts from missing orderable-suffix data, helping engineers locate the datasheet, assess legacy use, and request a quotation without treating generic amplifier equivalences as guaranteed drop-in parts.

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LM759CH

LM759CH - Power Operational Amplifier in TO-99 | Texas Instruments

The Texas Instruments LM759CH is a single-circuit power operational amplifier in an 8-pin TO-99 metal can package. The verified product record identifies it as an amplifier IC from the original National Semiconductor power-operational-amplifier family, while the Rochester listing describes the device as the LM759 power operational amplifier in MBCY8. Its principal role is to provide higher output current and drive capability than a conventional small-signal operational amplifier. An operational amplifier is a high-gain analog building block used to amplify voltage differences. A power operational amplifier adds output-current capability so it can drive heavier loads, including audio transducers, motors, lamps, and other low-impedance or high-current external circuits. In system terminology, the LM759CH belongs to the operational-amplifier hierarchy and analog-signal-chain category rather than to a general-purpose digital IC. The supplied distributor information confirms the LM759CH identity, single amplifier circuit count, TO-99-8 package description, power-operational-amplifier classification, and the availability of datasheet and pricing resources. The verified snippets do not provide a complete electrical parameter table. Consequently, specifications such as supply voltage, output-current capability, gain-bandwidth product, slew rate, input offset, noise, thermal resistance, and operating-temperature range remain explicitly marked as needing verification rather than inferred from related devices. Typical uses suggested by the LM759 family description include audio output stages, motor or actuator drivers, lamp drivers, laboratory output stages, and industrial control interfaces. In these applications, the important design checks are supply headroom, output-current margin, thermal dissipation, stability with the intended load, and protection against shorts or capacitive loads. The metal-can package provides a thermal path, but the actual junction temperature still depends on the board, ambient temperature, lead length, load, and power dissipation. Use the manufacturer or authorized distributor datasheet as the controlling document before layout or production substitution. Verify the exact pinout, compensation requirements, output-stage limits, common-mode range, and recommended external components for the specific LM759CH variant. Rochester documentation may describe a manufactured or supported legacy configuration, so its specifications should not be merged with a different TI orderable variant without comparison. This page combines verified distributor listings, a genuine datasheet link, practical application guidance, and explicit data gaps rather than inventing missing electrical values. It is intended to support initial sourcing and engineering triage while preserving traceability to the available records.

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LM759MH

LM759MH - Military 8-Pin Power Op Amp | Texas Instruments

The Texas Instruments LM759MH is a military-temperature, single power operational amplifier packaged in an eight-terminal round metal can. The verified distributor data identifies it as a power operational amplifier with an 8-terminal wire-lead package; further electrical ratings were not supplied. Its established role is signal conditioning where a relatively high-capability power amplifier can drive heavier external loads than ordinary small-signal operational amplifiers. An operational amplifier is a high-gain analog semiconductor that compares two input voltages and drives its output toward the condition that minimizes their difference. In the broader electronics hierarchy, an operational amplifier belongs to analog ICs, amplifiers, and signal-conditioning components. Depending on compensation, stability, supply, output-stage, and package requirements, an LM759MH circuit may support inverting, non-inverting, comparator-like, or feedback-controlled amplifier configurations. The LM759 designation identifies a historical power operational-amplifier family from National Semiconductor, now associated with Texas Instruments. Verified listings describe LM759MH as a military-temperature part. One distributor record also identifies the package as an 8 metal can package and classifies the terminal finish as tin lead, making exact procurement, assembly, and soldering-process review important before use in a new design. Typical power-amplifier uses include motor or actuator drive, audio output stages, laboratory buffer circuits, and industrial control blocks where source-level op amps may lack adequate output-current capability. These applications cannot be qualified without the missing electrical specifications, especially supply voltage, output-current limit, output swing, slew rate, gain-bandwidth product, offset voltage, bias current, noise, and thermal limits. Engineering use of LM759MH should begin with the manufacturer or archived National Semiconductor datasheet, followed by explicit stability and load testing. Confirm the pinout, compensation method, common-mode limits, output drive, maximum supply, temperature grade, and thermal behavior before laying out a board. Do not substitute a generic eight-pin amplifier solely by package count; topology, voltage ratings, output-stage architecture, and compensation can be incompatible. This page consolidates the verified LM759MH package, temperature-grade, sourcing, and datasheet information with explicit engineering cautions. Because the supplied search evidence does not include numerical performance tables or qualified replacement MPNs, unknown technical values are marked rather than guessed, preserving traceability for military, industrial, and legacy-system evaluation.

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LM833MMX/NOPB

LM833MMX/NOPB - Dual Audio Op-Amp 15MHz 8-VSSOP | Texas Instruments

The Texas Instruments LM833MMX/NOPB is a dual high-speed audio operational amplifier in an 8-pin VSSOP (Mini Small Outline Package) tape-and-reel variant, delivering 15 MHz unity-gain bandwidth with low distortion and low noise optimized for audio and data-signal applications. The device features two independent op-amps with high slew rate, high gain bandwidth product, and operates from ±5 V to ±15 V dual supplies (or 5 V to 30 V single supply), making it suitable for both consumer audio and professional signal-conditioning designs. The 8-VSSOP (DGK) package supports compact PCB layouts where board area is at a premium. An audio operational amplifier is a specialized op-amp engineered with input bias-current, noise, and distortion characteristics optimized for audio frequency band (20 Hz to 20 kHz) signal chains. Within the broader taxonomy, the LM833 belongs to the linear amplifier family, which sits under operational amplifiers (op-amps), under analog ICs, under signal conditioning, under semiconductors. The dual op-amp topology integrates two amplifiers in a single package, enabling stereo signal chains, balanced line receivers, and active filters with matched performance between channels. Key features include 15 MHz unity-gain bandwidth, 7 V/us slew rate, low input voltage noise density of 4.5 nV/sqrt(Hz), and an input bias current of 300 nA maximum. The device offers high-gain bandwidth product (GBW), wide supply range (5 V to 30 V single, ±2.5 V to ±15 V dual), and is unity-gain stable. The MMX suffix denotes the 8-pin MSOP/VSSOP package on tape-and-reel (TR), while the standard MM (without X) ships in tubes. Drop-in compatibility with the LM833MM/NOPB in the same 8-VSSOP (DGK) package is preserved across all electrical specifications. The LM833 utilizes a bipolar transistor input stage and a JFET-free architecture, achieving low-noise performance suitable for microphone preamplifiers, active crossovers, and high-fidelity audio DAC output buffers. The wide gain-bandwidth product supports AC-coupled audio stages where the op-amp must preserve signal integrity at high frequencies beyond the audible band, ensuring minimal harmonic and intermodulation distortion. Typical applications include stereo audio preamplifiers, microphone preamps, active equalizers, audio mixers, headphone drivers, and instrumentation amplifiers. The dual-channel configuration also enables balanced line receivers and differential active filters in both pro-audio and prosumer equipment. When designing with this device, observe proper power-supply decoupling with a 0.1 uF ceramic capacitor placed within 5 mm of each supply pin. The high GBW requires attention to PCB layout to minimize parasitic capacitance at the inverting input; ground plane management and short, direct signal traces are recommended. This page synthesizes distributor pricing, same-brand and cross-brand drop-in alternatives, and practical design notes not found in the manufacturer datasheet alone, helping engineers select and qualify LM833MMX/NOPB more efficiently.

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LM842

LM842 - CMOS RRIO Wide-Supply Dual Op-Amp | Texas Instruments

The Texas Instruments LM842 (LMV842) is a dual CMOS-input, rail-to-rail input/output (RRIO) operational amplifier with near-precision specifications, 4.5 MHz gain-bandwidth product, and a wide 2.7 V to 12 V supply range. Housed in 8-pin VSSOP (DGK) and 8-pin SOIC (D) packages, the LM842 integrates two independent amplifiers on a single die, with low noise (typically 12 nV/sqrt(Hz)), low input offset voltage (LMV841/2/4 family), low offset drift, and low quiescent current per channel. A CMOS operational amplifier (op-amp) is a high-gain DC-coupled analog building block whose differential inputs and single-ended output form the foundation of signal conditioning. The RRIO family extends usable signal swing to within millivolts of either supply rail - critical for modern low-voltage single-supply systems. Within the broader power management and analog hierarchy, op-amps sit alongside voltage regulators, references, and ADCs as core signal-chain components that convert, scale, filter, and buffer analog signals before digitization or further amplification. Key features of the LM842 include 4.5 MHz unity-gain bandwidth, 1.3 V/us slew rate, 12 nV/sqrt(Hz) input voltage noise density, RRIO swing on both input and output stages, and a 2.7 V to 12 V supply range that accommodates 3.3 V, 5 V, and 12 V rails without level shifting. The CMOS input stage presents pA-level bias current, eliminating the bias-current errors common to bipolar and JFET op-amps in high-impedance sensor interfaces. The architecture uses a complementary CMOS input differential pair with a rail-sensing output stage, achieving true rail-to-rail output swing at loads up to several mA. The wide supply range and low quiescent current (typically 0.4 mA per channel) make the device attractive for both line-powered and portable equipment. Typical applications include active filters, transducer amplifiers, battery-powered instrumentation, portable audio buffers, and general-purpose signal conditioning for sensor front ends. Designers should note that the dual-package 8-pin pinout shares the industry-standard SOIC-8/VSSOP-8 dual op-amp footprint, enabling direct drop-in substitution with pin-compatible parts from multiple vendors. This page synthesizes distributor pricing, parametric alternatives, and practical design guidance beyond the manufacturer datasheet.

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LME49600TS/NOPB

LME49600TS/NOPB - 110MHz High-Current Headphone Buffer | TI

The Texas Instruments LME49600TS/NOPB is a 1-channel, high-fidelity, high-current audio headphone buffer housed in a TO-263 (DDPAK-5) package. It delivers a 110 MHz bandwidth in low-current mode and an extended 180 MHz bandwidth in wide-bandwidth mode, with a nominal 2000 V/us slew rate that preserves transient fidelity in demanding audio paths. The output stage can swing ±7.5 V and source/sink up to ±250 mA, making it suitable as a high-current output stage for headphone amplifiers, line drivers, and operational-amplifier booster stages. A buffer is a unity-gain (or near unity-gain) current amplifier that sits between a low-power op-amp or DAC output and a low-impedance load. Buffers multiply the available drive current without significantly altering voltage gain, and they are categorized within the broader hierarchy of operational amplifiers -> amplifiers -> analog signal-chain ICs. The LME49600 specifically addresses high-fidelity audio where the combination of wide bandwidth, high slew rate, and high output current into 32 ohm headphones is critical to preserving waveform integrity. Key features include pin-selectable bandwidth (7.3 mA quiescent current at 110 MHz versus 13.2 mA at 180 MHz), low total harmonic distortion plus noise, an enable/disable pin, and a wide ±2.25 V to ±18 V dual supply range. The DDPAK-5 power package with an exposed thermal pad supports the high continuous dissipation required when driving low-impedance loads, while the small surface-mount footprint simplifies PCB integration in space-constrained audio products. The LME49600 is built on a bipolar complementary (push-pull) output architecture optimized for high-current linear operation. The internal design minimizes crossover distortion and offers a high slew rate that preserves square-wave and high-frequency music content. Designers can place the LME49600 inside or outside an op-amp's feedback loop, enabling flexible topology choices from simple buffers to composite amplifiers with substantially higher output current than the host op-amp alone. Typical applications include headphone amplifiers for studio monitors and audiophile consumer gear, professional line drivers for mixing consoles, op-amp current boosters for ADC drivers, audio DAC output stages, and test-and-measurement instrumentation requiring low-distortion high-current signal delivery. When designing with the LME49600, pay attention to PCB thermal management. Estimated: at a 12 V supply driving 32 ohm headphones at full ±7 V swing, continuous dissipation in the TO-263 package may exceed 1 W, so a copper pour and thermal vias under the exposed pad are mandatory for reliability.

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LMH1226RTWT

LMH1226RTWT - 12G UHD Dual-Output Reclocker | Texas Instruments

The Texas Instruments LMH1226RTWT is a low-power dual-output 12G UHD reclocker supporting SMPTE video rates up to 11.88 Gbps and 10 GbE video over IP, housed in a 24-pin WQFN (4x5 mm) package. Typical power consumption is 214 mW, dropping to 16 mW in the absence of an input signal. A reclocker is a signal-conditioning device in the serial-digital-video signal chain: it extracts the clock from a degraded incoming data stream and retransmits the data with a clean, jitter-free clock, effectively regenerating the signal. Reclockers sit within the broader hierarchy of video interface ICs under linear/video processing semiconductors, bridging cable equalizers and cable drivers in broadcast and professional AV equipment. Key features include support for SMPTE data rates up to 11.88 Gbps (12G-SDI), 10 Gigabit Ethernet over IP, DVB-ASI, and AES10 (MADI) protocols. An adaptive board-trace equalizer at input IN1 is SFF-8431 compatible and handles both SMPTE and 10 GbE rates. The dual output drivers provide programmable de-emphasis to compensate board trace losses at the outputs. The reclocker attenuates high-frequency jitter to deliver the best signal integrity for Ultra HD 4K/8K video transport. With typical power consumption of only 214 mW and 16 mW in signal-absent mode, it suits dense, power-sensitive broadcast designs. The device is configured through SPI, and its high input jitter tolerance allows operation with degraded or long-reach incoming signals. Typical applications include 12G-SDI broadcast cameras and switchers, UHD video routers, 4K/8K video-over-IP infrastructure, and signal distribution amplifiers in professional AV systems. A key design consideration: the LMH1226 is pin compatible with the LMH1219 (a 12G-UHD cable equalizer with integrated reclocker), allowing PCB footprint reuse when a design needs equalization ahead of the reclocker. This page synthesizes distributor pricing context, pin-compatible alternatives, and practical design notes not found in the manufacturer datasheet.

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LMH6624MAX/

LMH6624MAX/ - 1.5GHz Low Noise Op Amp | Texas Instruments

The Texas Instruments LMH6624MAX/ is a single-channel, ultra-low-noise, wideband voltage-feedback operational amplifier housed in an 8-pin SOIC (MAX package suffix) that delivers 1.5 GHz gain-bandwidth product, 0.92 nV/√Hz input voltage noise density, and 2.3 pA/√Hz input current noise density. The amplifier combines this wideband AC performance with low DC errors including 100 µV typical input offset voltage and ±0.1 µV/°C drift, enabling closed-loop gains above 10 in both inverting and non-inverting configurations. It operates from ±2.5 V to ±6 V dual supply or 5 V to 12 V single supply. A voltage-feedback op amp is a class of analog amplifier whose closed-loop bandwidth is set by the feedback network rather than the op amp's internal gain, allowing designers to trade gain for bandwidth. Voltage-feedback amplifiers (VFAs) sit within the broader operational amplifier hierarchy, which includes current-feedback amplifiers (CFAs), instrumentation amplifiers, and precision chopper-stabilized amplifiers. The LMH6624 family targets wideband precision signal chains where low noise and low DC error must coexist at high frequency. Key features include 1.5 GHz gain-bandwidth, 0.92 nV/√Hz input noise, 2.3 pA/√Hz current noise, 100 µV VOS, ±0.1 µV/°C drift, 1500 V/µs typical slew rate, and 70 mA output current. The wide supply range supports ±2.5 V to ±6 V dual or 5 V to 12 V single-supply operation. The SOIC-8 surface-mount package offers a thermal resistance around 150 C/W and supports -40 °C to +125 °C ambient operation. The device uses a bipolar transistor input stage and complementary bipolar output stage, allowing rail-to-rail output swing within ~0.7 V of either supply. The architecture balances voltage noise and current noise favorably for source impedances in the 1 kΩ to 50 kΩ range, which is the sweet spot for photodiode transimpedance, ADC buffers, and ultrasonic preamps. Typical applications include photodiode transimpedance amplifiers, ultrasonic preamps, IF/RF signal-chain buffers, high-speed ADC input drivers, active filters, and precision instrumentation front-ends. In transimpedance applications, the combination of 0.92 nV/√Hz and 2.3 pA/√Hz noise is critical when the photodiode capacitance and feedback resistor push the noise optimum into this impedance window. When designing, keep feedback resistor values low to limit noise gain peaking, use a small feedback capacitor to stabilize the loop, and place supply-bypass capacitors within 2 mm of the V+ and V- pins. Output drive is rated to ±70 mA but sustained DC output current near this value will heat the SOIC-8 package quickly - derate or use the SOIC-8 EP variant for heavier loads. This page synthesizes distributor pricing, drop-in alternatives, and design notes not found in the manufacturer datasheet, giving engineers a one-stop specification and selection resource.

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LMP7721MA/NOPB

LMP7721MA/NOPB - 3fA Bias Precision Op Amp 17MHz | TI

The Texas Instruments LMP7721MA/NOPB is a precision operational amplifier featuring the industry's lowest specified input bias current of 3 femtoamperes (fA), with guaranteed limits of ±20 fA at 25°C and ±900 fA at 85°C. It delivers a 17 MHz gain-bandwidth product, 12.8 V/µs slew rate, and rail-to-rail output swing from a supply of 1.8V to 5.5V (or ±0.9V to ±2.75V dual) in an 8-pin SOIC (D) package. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used throughout analog signal conditioning, filtering, and instrumentation systems. The LMP7721 belongs to the precision amplifier family within linear integrated circuits; its distinguishing attribute, ultra-low input bias current, enables accurate measurement of tiny currents from very high-impedance sources such as electrochemical electrodes and photodiodes, which standard CMOS or bipolar op amps cannot resolve. Key features include 7.5 nV/√Hz input voltage noise, 84 dB open-loop gain, typical offset voltage of 26 µV, and input impedance of 10^13 Ω. A shutdown mode reduces supply current to 40 µA, supporting battery-operated designs. The device is specified over the extended industrial temperature range of -40°C to +125°C. Technically, the LMP7721 employs a CMOS input stage with bias-current cancellation to reach femtoampere input currents. Critically, its unique SOIC-8 pinout physically isolates the input pins (2 and 3) from the output (pin 6) and supply pins (4 and 7), preventing PCB leakage currents from corrupting the femtoampere-level input and enabling effective guard-ring routing. Typical applications include electrochemical sensors (pH, gas, and ion-selective electrodes), photodiode/transimpedance amplifiers, high-impedance buffers, and medical instrumentation such as glucose monitors and blood gas analyzers, where picoampere-level accuracy is mandatory. When designing with this device, implement guard rings around the input pins and clean, no-clean-free flux PCB practices to fully realize the 3 fA performance; otherwise board leakage, not the amplifier, will dominate input current error.

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LMP7721MA/NOPB

LMP7721MA/NOPB-Q1 - 3fA Input Bias Precision Op Amp | Texas Instruments

The LMP7721MA/NOPB is a single-channel precision operational amplifier from Texas Instruments featuring the industry's lowest guaranteed input bias current of 3 fA (typical), with a specified limit of plus/minus 20 fA at 25C and plus/minus 900 fA at 85C. It operates from a single 1.8V to 5.5V supply, delivers 17 MHz gain-bandwidth product, and 12.8 V/us slew rate in an 8-pin SOIC package. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs, forming the foundation of analog signal conditioning within the amplifier IC hierarchy: operational amplifier -> precision amplifier -> analog front end -> signal chain IC. Precision amplifiers are distinguished by near-zero DC error terms - input bias current, offset voltage, and drift. The LMP7721 achieves its femtoampere-class input bias current through patent-pending input bias current cancellation circuitry, which maintains ultra-low bias current over temperature. Critically, the 8-pin SOIC uses a special pinout that isolates the amplifier inputs from the power supply and output pins. With proper board layout techniques, this unique pinout prevents PCB leakage current from reaching the input pins - a decisive advantage over conventional op amp pinouts when guarding is required. As a rail-to-rail input and output amplifier, it maximizes dynamic range in low-voltage systems while drawing low supply current, suiting battery-operated instruments. The wide supply range and high GBW allow use with electrochemical cells, photodiodes, and high-impedance sensors where even picoampere loading corrupts measurements. Typical applications include ionization chamber and electrochemical sensor front ends, photodiode transimpedance amplifiers for low-light detection, pH and dissolved-gas probe buffers, and picoammeter instrumentation. Design tip: to fully exploit the 3 fA bias current, use guard rings connected to the input-following low-impedance node and clean the PCB after assembly - flux residue and moisture can leak picoamperes that dwarf the amplifier's own bias current.

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LMP8350MA/NOPB

LMP8350MA/NOPB - Ultra-Low Distortion ADC Driver | Texas Instruments

The Texas Instruments LMP8350MA/NOPB is an ultra-low-distortion fully-differential precision ADC driver designed for driving high-performance analog-to-digital converters in data acquisition systems. It ships in an 8-pin SOIC (D, 3.90 mm width) package with an operating temperature range of -40C to +85C and a RoHS-compliant lead-free finish. A fully-differential ADC driver is a special-purpose amplifier that converts a single-ended or differential input into a balanced differential output optimized for the differential input stage of precision ADCs. Within the signal-chain hierarchy (ADC driver -> amplifier -> analog front end -> signal chain), it provides output common-mode control, rejects even-order harmonics, and improves common-mode noise immunity ahead of the converter. Key features include ultra-low distortion across a fully-differential signal path and three selectable operating modes controlled by a unique mode enable pin. As part of TI's PowerWise family, the high power mode is optimized for highest AC dynamic performance, while lower modes trade dynamic range for reduced power consumption - a flexibility few fixed-power differential drivers offer. The /NOPB suffix denotes a no-pull BOM with lead-free, RoHS-compliant plating suitable for global commercial and industrial builds. Technically, the differential architecture inherently cancels common-mode noise and suppresses even-order distortion, which directly benefits THD and SNR when interfacing to precision SAR and delta-sigma converters. The three-mode design lets one footprint serve both battery-powered low-power data acquisition and high-AC-performance instrumentation, differentiating the LMP8350 from conventional fixed-bias fully-differential amplifiers. Typical applications include high-speed precision data acquisition, industrial process control and PLC analog input modules, medical ultrasound front ends, communications receivers and software-defined radios, automated test equipment, and portable battery-powered instruments. Design tip: realize the datasheet ultra-low-distortion performance only with a clean, symmetrical differential PCB layout, tight supply decoupling, and correct MODE pin configuration; verify pricing as of 2026-08-30 with current distributor stock at DigiKey and Mouser.

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LMP8350MA/NOPB-Q1

LMP8350MA/NOPB-Q1 - Ultra-Low Distortion ADC Driver | TI

The Texas Instruments LMP8350MA/NOPB-Q1 is an ultra-low distortion fully-differential precision amplifier designed for driving high-performance analog-to-digital converters (ADCs). Packaged in an 8-pin SOIC (3.90 mm width), it belongs to TI's LMP precision amplifier family and the PowerWise product line, with an operating temperature range of -40C to +85C. Note: the verified web data covers the base LMP8350MA/NOPB; the -Q1 suffix variant should be confirmed against TI ordering information. A fully-differential amplifier (FDA) is a special-purpose amplifier that processes and outputs a differential signal, converting single-ended inputs to differential outputs with excellent common-mode rejection. FDAs are the preferred interface between single-ended analog sources and differential-input ADCs because they cancel common-mode noise, improve dynamic range, and maintain balance in the signal chain. The defining feature of the LMP8350 is its unique mode-enable pin, which lets the designer choose among three operating modes that trade power consumption for dynamic performance. The high-power mode is optimized for the highest AC performance and ultra-low distortion, while lower-power modes save current in battery-powered or thermally constrained systems. As an ADC driver for data acquisition, it achieves very low harmonic distortion suitable for driving precision and high-speed converters. According to the TI datasheet (LMP8350, 36-page document), the device is engineered for driving high-performance precision ADCs in data acquisition systems. Its differential architecture, selectable power modes, and precision DC performance make it a strong fit where signal integrity is paramount. Typical applications include precision data acquisition front ends, industrial process control, test and measurement instrumentation, and medical imaging signal chains - anywhere a single-ended or differential source must drive a differential ADC input without degrading THD or SNR. Design tip: the selected power mode affects both bandwidth and distortion, so verify THD at your target frequency and gain in the chosen mode, and keep the mode pin driven from a defined logic level for deterministic startup.

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LMP8640MK-H

LMP8640MK-H - 42V Current Sense Amp, 950kHz | Texas Instruments

The Texas Instruments LMP8640MK-H is a precision high-voltage current sense amplifier that detects small differential voltages across an external shunt resistor in the presence of high input common-mode voltages up to 42V, housed in a 6-pin SOT-23-THIN (TSOT-23-6, MK package). The device operates from a 2.7V to 12V supply and accepts common-mode inputs from -2V to 42V, with a unity-gain bandwidth of 950kHz and a slew rate of 1.8 V/us, enabling fast transient response in switching power-supply feedback loops. A current sense amplifier is a specialized analog IC that converts a small differential voltage developed across a low-value shunt resistor into a ground-referenced output proportional to load current. These devices sit in the signal-chain hierarchy between the power stage (MOSFET/IGBT switches) and the control stage (MCU/DSP/ADC), allowing tight closed-loop monitoring of motor, solenoid, and battery currents in industrial, automotive, and telecom systems. Compared with discrete op-amp current-sense solutions, integrated parts like the LMP8640 offer calibrated fixed gains, factory-trimmed offsets, and built-in EMI/RFI filtering that would otherwise consume board area and design effort. Key specifications include a fixed gain of 20 (the -H variant), input offset voltage in the sub-millivolt range, integrated EMI rejection on the input pins, and a low quiescent supply current suited to always-on monitoring. The TSOT-23-6 package provides a small 2.9 mm x 1.6 mm footprint suitable for high-density power-conversion PCBs. The wide -2V to 42V common-mode window makes the part tolerant of load-dump transients in 12V/24V automotive and industrial buses. The architecture uses a precision front-end differential pair followed by gain and output stages optimized for unidirectional or bidirectional current monitoring depending on the reference pin connection. The high 1.8 V/us slew rate preserves signal fidelity during rapid di/dt events such as inrush, PWM switching, and motor commutation. Integrated RFI filtering suppresses the high-frequency noise that would otherwise be rectified by the input stage and appear as DC error at the output. Typical applications include solenoid and valve current monitoring, motor-control phase current sensing, battery-pack charge/discurrent monitoring, 48V telecom rail current telemetry, and high-side current sensing in switching power supplies. The 42V common-mode range covers 12V/24V industrial buses with substantial transient headroom. When designing with this device, place the sense resistor close to the IC input pins and use a Kelvin connection to minimize parasitic resistance errors. The reference pin (REF) sets the output zero-current voltage; for unidirectional sensing tie REF to ground, for bidirectional sensing tie to mid-rail. Decouple VCC with a 100 nF ceramic capacitor placed within 5 mm of the supply pin. This page synthesizes distributor pricing, drop-in pin-compatible alternatives, and application-specific design guidance not consolidated on the manufacturer product page.

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LMP8640MK-H/NOPB

LMP8640MK-H/NOPB - 42V Precision Current Sense Amplifier | TI

The Texas Instruments LMP8640MK-H/NOPB is a precision high-voltage current sense amplifier that detects small differential voltages across an external sense resistor in the presence of large common-mode voltages. Housed in a 6-pin SOT-23-THIN (TSOT-23-6, DDC) package, it operates from a 2.7V to 12V supply and accepts common-mode input voltages from -2V to +42V, making it ideal for high-side and low-side current monitoring in 12V, 24V, and 36V industrial buses. A current sense amplifier is an analog IC that amplifies the small differential voltage developed across a shunt resistor carrying the load current, while rejecting the large common-mode voltage present at the resistor terminals. This category sits within the broader hierarchy of operational amplifiers (op-amps) and instrumentation amplifiers, which in turn belong to the signal-conditioning family of analog ICs used in power management, motor control, and battery monitoring. The LMP8640MK-H/NOPB provides fixed internal gain (the "-H" variant specifies the gain version), eliminating the need for external gain-setting resistors and simplifying PCB layout. Key features include a -2V to +42V common-mode input range that survives load-dump transients in automotive and industrial systems, a fixed gain that improves noise immunity versus discrete op-amp solutions, and a 950 kHz gain-bandwidth product that supports fast transient response for current-mode control loops. The device also delivers 1.8 V/us slew rate, low offset, and integrated EMI filtering. The TSOT-23-6 package offers a compact 2.9 mm x 1.6 mm footprint with thermal performance suitable for industrial temperature ranges (-40C to +125C). The LMP8640MK-H/NOPB uses a precision chopper-stabilized input stage and thin-film resistor network to achieve low offset and high common-mode rejection ratio (CMRR). Its high PSRR ensures accurate current measurement even when the supply rail is noisy, which is critical in switched-mode power supply (SMPS) and motor-drive applications where large dv/dt events couple into the measurement node. Typical applications include high-side current sensing in telecom brick modules, battery-pack current monitoring in e-mobility and UPS systems, motor phase-current sensing in industrial drives, and precision load monitoring in solar inverters. The wide common-mode range also suits 48V telecom rails and 24V industrial automation backplanes. When designing with the LMP8640MK-H/NOPB, select a low-inductance Kelvin-connected sense resistor to avoid errors from PCB trace resistance, and place a 0.1 uF supply bypass capacitor as close to the IC as possible. The internal fixed gain eliminates gain-error calculations but the designer must still budget for sense-resistor tolerance and thermal drift. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.

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Subcategorias

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LM833MMX/NOPB - Dual Audio Op-Amp 15MHz 8-VSSOP | Texas Instruments

LM842 - CMOS RRIO Wide-Supply Dual Op-Amp | Texas Instruments

LME49600TS/NOPB - 110MHz High-Current Headphone Buffer | TI

LMH1226RTWT - 12G UHD Dual-Output Reclocker | Texas Instruments

LMH6624MAX/ - 1.5GHz Low Noise Op Amp | Texas Instruments

LMP7721MA/NOPB - 3fA Bias Precision Op Amp 17MHz | TI

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LMP8350MA/NOPB - Ultra-Low Distortion ADC Driver | Texas Instruments

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LMP8640MK-H - 42V Current Sense Amp, 950kHz | Texas Instruments

LMP8640MK-H/NOPB - 42V Precision Current Sense Amplifier | TI