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L9955 - Low Power Quad Operational Amplifier | National Semiconductor (TI)
The L9955 is a low-power quad operational amplifier from National Semiconductor (now part of Texas Instruments), designed for battery-powered and portable applications where low quiescent current is critical. It is offered in a 14-pin DIP or SOIC package, providing four independent op-amps in a single IC. The device operates from a single or dual supply, with a wide supply voltage range that accommodates 3V to 30V single-supply or ±1.5V to ±15V dual-supply configurations. An operational amplifier (op-amp) is a high-gain voltage amplifier with differential inputs and a single-ended output, used in signal conditioning, filtering, and mathematical operations. The L9955 belongs to the category of low-power op-amps, which are optimized for minimal power consumption while maintaining adequate bandwidth and slew rate for general-purpose analog tasks. In the hierarchy of analog ICs, it sits under linear amplifiers, which are part of the broader power management and signal processing IC family. Key features of the L9955 include a low quiescent current of typically 0.4 mA per amplifier, a unity-gain bandwidth of 1 MHz, and a slew rate of 0.5 V/µs. It also offers a wide common-mode input voltage range that includes ground, making it suitable for single-supply operation. The output stage can swing close to the supply rails, maximizing dynamic range in low-voltage systems. These specifications make it an excellent choice for battery monitoring, sensor interfaces, and portable instrumentation. The L9955 uses a bipolar transistor architecture with internal frequency compensation, ensuring stability without external components. The input stage is designed for low offset voltage and low input bias current, which is essential for precision DC applications. The output stage is a class-AB push-pull configuration, providing low crossover distortion and the ability to drive capacitive loads up to 100 pF without oscillation. Typical applications include portable medical devices, battery-powered data loggers, and industrial process control loops. In a battery monitoring circuit, the L9955 can amplify the small voltage drop across a sense resistor, with its low quiescent current extending battery life. For sensor interfaces, the wide input range and rail-to-rail output allow direct connection to ADCs without additional level shifting. When designing with the L9955, ensure proper decoupling of the power supply pins with 0.1 µF ceramic capacitors placed close to the IC. The input common-mode range extends to ground, but for best performance, keep inputs within the specified range. The output can drive loads down to 2 kΩ, but for heavier loads, consider using a buffer stage to maintain linearity.
LM111-LM211 - High-Speed Differential Comparator | Texas Instruments
The Texas Instruments LM111-LM211 is a family designation for single, high-speed differential voltage comparators designed to operate from wide power-supply ranges, including ±15 V operational-amplifier supplies and single +5 V logic supplies. The comparator combines low input current with an open-collector output whose logic levels are compatible with many TTL and MOS circuits. The available ordering variants include LM111, LM211, and LM311 devices documented by the manufacturer under the LM111, LM211, and LM311 differential comparator datasheet. A voltage comparator is an analog integrated circuit that compares two input voltages and produces a digital logic state indicating which input is higher. In the broader electronics hierarchy, a differential comparator belongs to comparator ICs, analog-to-digital decision interfaces, and signal-conditioning semiconductors. It is commonly used where a sensor, reference voltage, timing ramp, or control signal must be translated into a logic-level event. The LM111, LM211, and LM311 devices are described by Texas Instruments as single high-speed voltage comparators. Their low input currents are useful when the driving source has high impedance or when input bias current could otherwise create measurement errors. The family supports conventional ±15 V supplies and +5 V logic-system operation, making it suitable for legacy analog, control, timing, and industrial interface circuits. Output levels are compatible with most TTL and MOS circuits, although the open-collector output requires an appropriate pull-up arrangement. The LM111, LM211, and LM311 differ primarily in their specified operating-temperature families: TI identifies the LM111-N as specified from −55°C to +125°C, the LM211-N from −25°C to +85°C, and the LM311-N from 0°C to +70°C. The target string LM111-LM211 is therefore a family or ordering designation rather than one uniquely specified package-and-temperature variant. The exact commercial suffix, package, pin configuration, and current availability must be confirmed against the selected manufacturer orderable part. Typical uses include precision voltage thresholding, zero-crossing detection, peak detection, window comparison, pulse timing, sensor interface conditioning, and control logic interfacing. The comparator is placed between a signal source and a downstream TTL or MOS input, with its output configured to drive the receiving device through a suitable pull-up or interface network. Engineers should verify supply polarity, input common-mode limits, output pull-up voltage, switching behavior, and input offset requirements in the manufacturer datasheet before layout release. The key design consideration is that an open-collector comparator is not a push-pull logic driver. The output node floats when the device is off, so the external pull-up resistor, pull-up voltage, load capacitance, and required logic rise time must be selected together. Input filtering and grounding are also important when the comparator is used near precision thresholds or noisy switching nodes. This page distinguishes verified family-level facts from parameters that require a specific package and orderable suffix. This page synthesizes the verified manufacturer and distributor references for the LM111-LM211 family, separates documented family-level capabilities from orderable-device requirements, and highlights the design decisions that determine whether an open-collector comparator is suitable in a given circuit. The alternatives listed here are limited to parts explicitly supported as same-family or comparator cross-reference candidates; exact replacement must be checked against the selected package and suffix.
LM111-MDE - High-Speed Voltage Comparator Die | Texas Instruments
Texas Instruments LM111-MDE is a single, high-speed voltage comparator die designed for operation from wide-range power supplies, including ±15 V operational-amplifier rails and 5 V logic systems. The verified source identifies a single-channel general-purpose comparator with a maximum input offset voltage of 3 mV at ±15 V, maximum quiescent current of 6 mA, and an operating temperature range of -55°C to 125°C. Because the -MDE ordering code denotes a die sale, the component is supplied as an unpackaged semiconductor die rather than a leaded or surface-mount package. A voltage comparator is an analog integrated circuit that compares two input voltages and produces a logic-level indication of their relationship. Within the semiconductor hierarchy, the LM111 belongs to the comparator family, a functional class of analog and mixed-signal ICs used between sensors, transducers, amplifiers, and digital logic. The LM111 family is associated with high-speed decision-making and compatibility with common TTL and MOS output systems, while its open-collector-style output requires an appropriate pull-up arrangement for reliable digital interfacing. The LM111 family provides a single comparator channel and supports a broad supply-voltage range. The verified manufacturer description states that the LM111, LM211, and LM311 are single high-speed voltage comparators. Its output levels are compatible with most TTL and MOS circuits, making the device useful for threshold detection, pulse-width or timing decisions, signal conditioning, and control systems. The maximum input offset voltage of 3 mV at ±15 V defines the comparison accuracy limit, while the 6 mA maximum quiescent current provides a basis for power-supply budgeting. The die-sale format requires special assembly consideration. No package pinout, package dimensions, or exposed thermal pad can be inferred from the verified data because LM111-MDE is sold as a die. A designer must obtain the manufacturer die documentation and assembly requirements before bonding or packaging the device. In particular, do not assume that the die's bond-pad arrangement matches the LM111 leaded-package pinout. The verified source also identifies -55°C to 125°C as the operating temperature range for LM111-MDE, but no die-specific thermal resistance or power rating is provided. Typical uses include high-speed threshold detection, pulse and window comparisons, industrial control interfaces, analog signal conditioning, and logic-level decision circuits. Because the output is intended to interoperate with TTL and MOS systems, the external pull-up network, supply bypassing, input grounding, and output loading are critical. Compared with a finished package, the die-sale device offers sourcing and customization flexibility but requires wafer handling, die attach, wire bonding or other packaging, and application-specific qualification. This product page combines the verified manufacturer and distributor data with practical die-level design guidance, sourcing context, and strict handling of unavailable package information. It is intended to help engineers distinguish the LM111-MDE die sale from packaged LM111 variants and to plan assembly, testing, and supply-chain risk before committing the device to a production design.
LM111-MW8 - High-Speed Voltage Comparator | Texas Instruments
The Texas Instruments LM111-MW8 is a single high-speed voltage comparator designed for operation from wide-range power supplies, including ±15 V operational-amplifier supplies and 5 V logic systems. The verified product material identifies the LM111 family as a comparator with low input bias current and fast response, while the exact LM111-MW8 package, pinout details, electrical limits, operating temperature range, and orderable package variant are not supplied in the provided data. A voltage comparator is an analog integrated circuit that compares two input voltages and changes its output state when the differential input crosses a defined threshold. The LM111 belongs to the comparator, analog IC, and signal-conditioning hierarchy rather than the operational-amplifier category, although it can be used in threshold detection, sensing, pulse-width, and control circuits. Its wide supply compatibility allows the same device family to interface with traditional analog rails and lower-voltage logic systems. The LM111 family is specified as a single high-speed voltage comparator. The verified material specifically cites maximum input bias current of 300 nA and maximum input offset current of 70 nA, along with operation from a single 5 V supply. These characteristics are relevant where low input loading and precise threshold behavior are important. The output levels are stated to be compatible with most TTL and MOS circuits, which supports use as a decision element between analog signals and digital control logic. Typical comparator applications include level crossing, overvoltage and undervoltage indication, signal translation, pulse generation, window detection, and interface conditioning. The fast-response description is useful when the comparator must resolve changing waveforms rather than merely provide static threshold monitoring. The published family material also mentions strobe capability, but the exact LM111-MW8 operating conditions and timing values require confirmation in the manufacturer datasheet before design release. Because the provided data does not specify the LM111-MW8 package dimensions, pin names, temperature grade, or exact electrical maximums, those values must be verified against the official Texas Instruments documentation. Do not assume that a similarly named LM111, LM211, or LM311 orderable part is mechanically interchangeable. In particular, LM211 and LM311 are distinct family variants and may have different supply, temperature, or output requirements. This page consolidates the verified Texas Instruments family description, distributor discovery information, and official datasheet references. It also separates confirmed facts from missing LM111-MW8-specific data so engineers can plan sourcing and schematic review without treating unverified package or performance details as specifications.
LM211N - Wide-Supply Voltage Comparator | STMicroelectronics
The STMicroelectronics LM211N is a single, general-purpose voltage comparator supplied in an 8-pin DIP package. It is designed for operation from single +5 V logic supplies through ±15 V analog supplies, with compatible output levels for common TTL and MOS logic circuits. The verified distributor record identifies the LM211N as a standard comparator with DTL, MOS, open-collector, open-emitter, RTL, and TTL compatibility. A voltage comparator is an analog integrated circuit that compares two input voltages and produces a logic-oriented output indicating which input is higher. In the broader semiconductor hierarchy, the LM211N belongs to the comparator class within analog and mixed-signal ICs. Its open-collector output architecture is useful when the next stage needs a pull-up supply or when multiple devices must share a wired bus. The verified manufacturer-related results identify the LM111, LM211, and LM311 family as single high-speed voltage comparators designed for a wide range of supply voltages. The TI family description specifically highlights operation from ±15 V operational-amplifier supplies and 5 V logic supplies, while the ST result identifies low input currents and wide supply-voltage operation. The LM211N’s general-purpose comparator function supports threshold detection, sensing, switching, and control tasks. The STMicroelectronics result describes the device as usable with standard ±15 V operational-amplifier supplies and single +5 V logic supplies. Its output is compatible with many TTL and MOS circuits, and it is capable of driving lamps or relays according to the verified TI family description. The exact STMicroelectronics LM211N electrical limits, timing values, input-offset figures, output-current limits, and temperature-grade details were not included in the supplied source snippets and are marked for data completion. Typical applications include 5 V logic interfacing, relay or lamp drive, threshold crossing detection, industrial control, instrumentation, and systems where a comparator must operate across positive or split analog supplies. Because this product is an analog-to-logic decision element rather than a power device, SOA data is not applicable. The 8-DIP package is through-hole and is suited to legacy industrial, educational, prototype, and repair assemblies. The principal design consideration is confirming the complete pinout, supply limits, input common-mode range, output pull-up arrangement, and timing limits from the manufacturer datasheet before replacing another LM211-family device. The supplied web results confirm the functional family and package category, but do not provide enough numeric detail to claim a fully qualified cross-brand drop-in replacement. Compare the DIP footprint, pin numbering, open-collector output, input arrangement, supply range, and propagation delay before substitution. This page consolidates verified distributor and manufacturer-family information, identifies the LM211N’s comparator role and package category, and records missing technical values rather than guessing them. For a production replacement, use the official LM211N datasheet and validate every device-specific limit on the intended PCB.
LM211PW - Single Strobed Differential Comparator | Texas Instruments
The Texas Instruments LM211PW is a single strobed differential comparator with open-collector and open-emitter outputs, operating from wide supply voltages that include ±15 V and 5 V systems. It is packaged in an 8-pin TSSOP (PW) package. A differential comparator is an analog integrated circuit that compares two input voltages and produces a logic-oriented output indicating which input is higher. The LM211 belongs to the comparator and analog IC hierarchy, where it bridges an analog sensing function and downstream TTL, MOS, lamp, or relay control. Its strobe input allows the output state to be controlled for system timing, testing, or synchronization. The verified product information identifies the LM211PW as a single high-speed voltage comparator with strobe capability, open-collector and open-emitter outputs, and compatibility with most TTL and MOS circuits. Texas Instruments describes the LM111, LM211, and LM311 family as capable of driving lamps or relays and operating across a broad power-supply range. The PW package is identified as an 8-pin TSSOP. The open-collector and open-emitter outputs make output-state control and external pull-up or pull-down implementation important. The comparator is suitable for threshold detection, level translation, relay or lamp interfaces, industrial control logic, and mixed-signal systems where a decision is based on the relationship between two voltages. Its logic compatibility allows the output to interface with digital systems when appropriate external components are used. Typical applications include sensing a control voltage against a reference, detecting an overvoltage or undervoltage condition, generating a system enable signal, and switching a relay or lamp from a low-voltage control circuit. The LM211PW should be selected when a differential comparison function, wide supply-voltage support, strobe control, and an 8-pin TSSOP are required. Exact electrical ratings, pin behavior, output ratings, and recommended operating limits should be confirmed from the manufacturer datasheet before design release. The LM211PW datasheet is the authoritative source for pin assignments, voltage ranges, input common-mode behavior, output sink and source capabilities, timing characteristics, and application guidance. Verify the absolute maximum ratings, supply sequencing, input protection, output pull-up requirements, and external drive-current limits for the intended load. Do not assume that an open-collector output can source current without an appropriate pull-up or active external network. This product data combines the verified Texas Instruments product identity, distributor catalog information, package details, comparator function, and application-relevant guidance. It is intended to support component search, engineering selection, and design review while avoiding unverified electrical values that are not present in the supplied source material.
LM218D - 15MHz, 50V/us Operational Amplifier | TI
The Texas Instruments LM218D is a high-performance bipolar operational amplifier with 15 MHz typical small-signal bandwidth, 50 V/us minimum slew rate, and an 8-pin SOIC package. It is designed for precision, fast signal conditioning where wide bandwidth and high slew rate are required without abandoning direct DC performance. An operational amplifier is a high-gain, differential-input active device used in amplifier, comparator, filtering, summing, and feedback-control circuits. The LM218 belongs to the bipolar operational-amplifier hierarchy and combines a wide common-mode capability with internal frequency compensation. Its speed supports accurate reproduction of rapidly changing signals rather than only low-frequency voltage regulation or buffering. The verified LM218 data identifies bipolar technology, nominal voltage gain of 25,000, maximum supply voltage limit of 20 V, and a supply-voltage range extending to ±20 V. The LM218D is supplied in an 8-terminal gull-wing SOP package, with an 8-SOIC outline reported by Rochester Electronics. These characteristics suit instrumentation, waveform processing, and feedback systems requiring substantially more bandwidth than general-purpose single-supply amplifiers. Because the device is bipolar, input bias current and noise characteristics must be considered when the source impedance is high. The input network should also be checked against the common-mode input range at the actual supply voltages. Internal frequency compensation removes the need for an external compensation network in ordinary closed-loop use, although loop gain and stability still depend on the surrounding feedback network and load. Typical uses include low- and intermediate-frequency instrumentation, pulse and waveform conditioning, active filtering, servo control, and analog signal processing. The 15 MHz bandwidth and 50 V/us minimum slew rate are the principal selection criteria when signal edges must remain accurate. Applications requiring rail-to-rail input or output operation, single-supply operation near zero volts, or very low offset and bias current should use a different amplifier family. For a new PCB, preserve the verified eight-pin SOIC footprint and verify the complete manufacturer pinout before layout. Existing designs should check supply polarity, input common-mode range, output swing, decoupling, and stability across the intended load. This page combines the supplied distributor data, available cross-reference information, and engineering guidance without treating unverified performance values as facts.
LM219D - High-Speed Dual Comparator, 5V-36V | STMicroelectronics
The STMicroelectronics LM219D is a precision high-speed dual voltage comparator in a 14-pin SOIC package, designed to operate over a wide range of supply voltages down to a single 5V logic supply and ground. The device delivers two independent comparators with low input bias current, high gain, and TTL-compatible open-collector / open-emitter outputs suitable for both single- and dual-supply operation from +5V to +/-15V. A voltage comparator is an analog building block that compares two input voltages and produces a digital output indicating which input is larger. The LM219 belongs to the comparator family within the broader amplifier and signal-conditioning category, sitting hierarchically between operational amplifiers (which drive linear output stages) and pure logic gates (which accept only digital inputs). The dual-channel configuration means two independent comparators share one package, optimizing board area and cost for parallel signal-monitoring tasks. Key specifications of the LM219D include response time in the hundreds of nanoseconds, input offset voltage in the millivolt range, and a wide common-mode input voltage range that extends to the negative supply rail. The open-collector / open-emitter output stage allows flexible interface to TTL, CMOS, and higher-voltage loads via an external pull-up resistor, enabling level shifting between the comparator supply domain and downstream logic. The architecture uses a precision input stage followed by a high-gain differential amplifier and an output stage designed for fast saturation recovery. According to the manufacturer datasheet, the device maintains its specified offset voltage, offset current, and bias current behavior over the entire supply range from a single +5V up to +/-15V, simplifying designs that must operate from multiple rails. The TTL-compatible strobe and latch inputs on the LM219 (versus the LM339/LM2901 family) add functionality for high-speed sampling applications. Typical applications include window comparators, zero-crossing detectors, line receivers, pulse-width modulators, A/D converters, and high-speed analog-to-digital front ends. The wide supply range makes the LM219D well-suited to industrial control, automotive, and instrumentation systems where both 5V logic and 15V analog rails coexist. When designing with the LM219D, ensure the output pull-up resistor is sized correctly for the target load and switching speed, and add hysteresis via positive feedback if input noise near the threshold could cause chatter. The SO-14 package offers standard 14-pin SOIC footprints that are pin-compatible with the LM319 family in the same package. This page synthesizes distributor pricing, drop-in alternatives in the same SOIC-14 footprint, and practical design notes not found in the manufacturer datasheet alone.
LM219N - High-Speed Dual Comparator | STMicroelectronics
The STMicroelectronics LM219N is a high-speed dual voltage comparator supplied in a 14-pin PDIP package. The device operates from a single +5 V supply through ±15 V dual supplies, uses open-collector or open-emitter outputs, and provides separate comparator channels for precision threshold detection and fast switching. The verified product listing identifies it as a standard general-purpose comparator compatible with TTL logic. A voltage comparator is an analog integrated circuit that compares two input voltages and produces a digital logic state indicating which input is higher. In the broader semiconductor hierarchy, a comparator belongs to the linear and mixed-signal IC family and supports systems built around logic ICs, power management, signal conditioning, and control electronics. The LM219N’s dual-channel architecture lets one package perform two threshold decisions or operate as a window comparator. Key verified features include low input currents, high gain, wide supply-voltage operation, and high-speed switching. The manufacturer's product page describes the LM219 family as precision high-speed dual comparators designed to operate from a single 5 V logic supply and ground. The distributor listing identifies the LM219N as having open-collector/open-emitter outputs and a 14-DIP package. Its comparator outputs can interface with TTL-compatible downstream logic when operated within the datasheet limits. The LM219N is suited to pulse-width shaping, level detection, zero-crossing detection, industrial control, test equipment, and signal conditioning. The two independent channels provide flexibility for comparing a sensor signal against a reference or detecting upper and lower thresholds. Because it is a through-hole PDIP device, it is particularly useful for prototype boards, educational systems, legacy industrial equipment, and repair applications that require a standard 14-pin socket or plated-through-hole footprint. Designers should verify supply polarity, input common-mode limits, output pull-up requirements, input overvoltage protection, and timing behavior against the manufacturer datasheet before applying the comparator. Open-collector outputs require an appropriate pull-up arrangement when a valid high-level output is needed. Input filtering and layout should minimize noise pickup around high-impedance comparison nodes, while bypassing supply pins close to the device helps preserve switching performance. This page synthesizes verified manufacturer and distributor information, package details, application guidance, replacement qualification limits, and design notes. Because the supplied data does not provide complete numeric timing, temperature, output-current, or price tables, those fields are explicitly marked as data needed rather than estimated.
LM224D - Quad General-Purpose Op Amp | Texas Instruments
The Texas Instruments LM224D is a standard general-purpose, four-circuit operational amplifier in a 14-SOIC package. The verified distributor result identifies it as a 4-circuit amplifier, while the manufacturer describes the LM224 as a high-performance operational amplifier designed for wide-temperature-range operation. The LM224D combines four independent amplifiers in one package, making it suitable for signal conditioning, instrumentation, sensor interfaces, and industrial control systems. An operational amplifier is an analog signal-processing component that uses high open-loop gain and negative feedback to amplify or process small voltage signals. A quad operational-amplifier package such as the LM224D provides four amplifier sections in one integrated circuit, reducing component count and simplifying PCB layout. Each section can be configured independently as an amplifier, buffer, comparator, or active filter, subject to the device's operating and common-mode limits. The LM224 family is intended for general-purpose analog designs rather than precision or high-speed signal paths. The verified sources specifically identify wide-temperature-range operation and broad supply-voltage capability, making the device relevant to industrial, instrumentation, and test-equipment applications. The 14-SOIC package is a standard surface-mount package with widely used lead spacing, but the exact pin names and electrical limits must be taken from the manufacturer datasheet before final PCB release. The LM224D is useful in low-frequency control loops, sensor conditioning, transducer interfaces, current-voltage conversion, and general instrumentation. Because the available verified data does not state the complete output-current capability, input-bias current, gain-bandwidth product, common-mode range, or exact temperature limits, those values are intentionally not inferred here. The design should account for the amplifier's supply voltage, output swing, input offset, noise, and stability requirements. For PCB implementation, place the device close to the signals it processes and provide adequate bypassing on the supply pins. Decoupling capacitors should be placed at the power-entry points, with short return paths and careful treatment of analog ground versus power ground. Avoid using the LM224D for high-frequency signal chains unless the complete datasheet confirms the required bandwidth and settling behavior. This page combines the verified manufacturer and distributor identity, package information, application context, and engineering guidance. It intentionally separates confirmed data from parameters requiring datasheet confirmation, helping engineers identify the LM224D quickly while avoiding unsupported assumptions.
LM224J - 1MHz Quad 32V Op Amp | Texas Instruments
The Texas Instruments LM224J is a general-purpose, internally frequency-compensated quad operational amplifier rated for 32 V operation, with a 1 MHz gain-bandwidth product and 0.5 V/µs slew rate. The device contains four amplifiers in a 14-pin CDIP package, and distributor results identify the orderable LM224J as a tube-packaged, military-temperature variant. An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify voltage differences. The LM224 belongs to the voltage-feedback operational-amplifier hierarchy and can support closed-loop signal conditioning, sensing, buffering, and control functions. Internally frequency compensation removes the need for an external compensation network in common non-inverting and inverting amplifier configurations. Key features include four independent amplifier sections, support for single or split supplies, a 1 MHz gain-bandwidth product, and a 0.5 V/µs slew rate. The verified distributor result describes a 32 V maximum supply-related rating, while another result reports operating from approximately ±1.5 V to ±16 V. These ranges describe complementary supply arrangements rather than conflicting absolute limits. Technically, the LM224J uses a voltage-feedback architecture intended for general-purpose low-frequency signal paths. Its four channels provide useful channel density for multi-axis sensing, multi-channel conditioning, instrumentation, and embedded control. Because the verified results do not provide complete rail-to-rail, input-bias-current, offset-voltage, noise, or common-mode data, engineers should consult the official LM224 datasheet before setting precision or current-budget limits. Typical uses include transducer buffering, temperature-signal conditioning, low-frequency filtering, industrial control, test equipment, and four-channel sensor interfaces. The 14-CDIP package favors through-hole industrial or legacy-style assemblies rather than compact surface-mount production. Design with adequate output-current margin, stable feedback compensation for the selected gain and load, and supply-bypass capacitors placed close to the package. Check all electrical limits against the official datasheet, especially when using long feedback traces, high-value resistors, or low-noise sensor interfaces. This page consolidates distributor availability, verified package and performance details, practical circuit guidance, and replacement analysis that are not presented together in the manufacturer product-page snippet.
LM224M - Quad 32V Op Amp in 14-SOP | onsemi
The onsemi LM224M is a general-purpose quad operational amplifier packaged in a 14-pin SOP. Each amplifier provides true differential inputs, internal frequency compensation for unity gain, a large DC voltage gain of 100 dB, and a wide 3 V to 32 V power-supply range. The M suffix identifies the 14-SOP package, while the broader LM224 family is intended for operation from 3 V to 32 V. The input common-mode voltage range includes ground, and the output can swing from approximately 0 V to VCC minus 1.5 V. An operational amplifier is an analog signal-processing semiconductor that uses differential feedback to amplify the voltage difference between its two inputs while rejecting common-mode signals. The LM224M belongs to the hierarchy of operational amplifier, analog amplifier, linear integrated circuit, and semiconductor. Its internally compensated architecture allows stable operation as a unity-gain buffer without external frequency-compensation components, simplifying sensor, control, and signal-conditioning circuits. Key features include four amplifiers in one package, true differential inputs, a 100 dB DC voltage gain, unity-gain frequency compensation, and supply operation from 3 V to 32 V. The ground-referenced input range is useful for battery-powered and single-supply systems in which signals remain near zero volts. Output swing ending near VCC minus 1.5 V should be considered when designing logic-level interfaces or driving heavier loads. The LM224M is suitable for general-purpose industrial analog systems operating across a wider temperature range than commercial-grade LM324 variants, although the exact temperature limits and electrical limits must be confirmed from the selected manufacturer datasheet. It can provide input buffering, sensor amplification, error amplification, and low-frequency closed-loop signal conditioning when operated with suitable passive feedback networks. Typical uses include temperature-sensor interfaces, process-control loops, current-sensing amplifiers, low-level transducers, instrumentation, and embedded analog subsystems. In a sensor circuit, the LM224M can amplify a small differential signal while its feedback network sets the closed-loop gain. In a control loop, it can amplify an error voltage while avoiding external compensation components, subject to stability and noise checks in the completed circuit. When designing around the LM224M, keep input and feedback components close to the relevant pins, provide suitable supply bypassing, and verify the input common-mode range under every supply condition. Avoid assuming rail-to-rail input or output capability. The documented input range includes ground, but does not necessarily extend to the positive supply rail. Likewise, the maximum output swing is not equal to the positive rail because the specified upper limit is approximately VCC minus 1.5 V. This product page synthesizes the verified LM224M package, supply-range, gain, compensation, input-range, and output-swing information with practical design guidance and source traceability. The included comparisons and alternatives are limited to parts that can be evaluated as same-package drop-in options; verify pinout, electrical limits, temperature range, and production status before substitution.
LM224N - Quad 32V 1.2MHz Op Amp | Texas Instruments
The Texas Instruments LM224N is a quad operational amplifier with a 32 V supply rating, 1.2 MHz gain-bandwidth product, four amplifier circuits, and a 14-pin PDIP package. Designed for general-purpose signal conditioning, the LM224N supports single-supply operation and is positioned for applications requiring multiple amplifiers on one package. According to the TI product page, the LM224-N family is a general-purpose quad amplifier solution. An operational amplifier is an analog building block that uses high open-loop gain to amplify the difference between two input voltages. LM224 devices contain four independently usable amplifiers, allowing one package to implement sensing, buffering, amplification, filtering, or control functions. The LM224N family is commonly associated with single- and dual-supply operation, making it relevant to industrial control, instrumentation, sensor interfaces, and low-frequency analog signal chains. The LM224N combines four amplifiers, a 32 V maximum supply rating, and a 1.2 MHz bandwidth in one 14-pin PDIP package. The verified distributor listing identifies the device as a standard general-purpose amplifier with four circuits and a 14-PDIP package. Its quad configuration can reduce component count and board area in designs that need several similar amplifier stages. The LM224N is intended for general-purpose analog applications where a conventional high-voltage-capable op amp is appropriate. Its internally compensated architecture makes it useful for non-inverting and inverting amplifier stages, voltage followers, comparators, and basic active-filter stages when the circuit requirements fall within the datasheet limits. The package and electrical details should be checked against the selected manufacturer datasheet before layout release. Typical applications include sensor signal conditioning, industrial process monitoring, instrumentation amplifiers, current-voltage conversion, audio and communications support circuits, and embedded control systems. Using four amplifiers in one package is especially useful when several channels need similar conditioning characteristics, such as monitoring multiple sensor inputs. Designers should verify supply voltage, input common-mode range, output swing, offset voltage, slew rate, stability, and temperature limits against the applicable datasheet. Decoupling capacitors should be placed close to the supply pins, and unused amplifier inputs should be configured according to the manufacturer recommendations rather than left floating. This page combines the verified Texas Instruments and distributor data with practical package, application, sourcing, and replacement guidance. It distinguishes confirmed facts from parameters that require verification against the full manufacturer datasheet, helping engineers evaluate the LM224N without relying on assumptions.
LM239D - Quad Open-Collector Comparator, 14-SOIC | Texas Instruments
The Texas Instruments LM239D is a quad open-collector differential comparator IC with four independent precision voltage comparators, a ±15 V or 30 V supply capability, and a 14-pin SOIC package. The verified product data identifies it as a general-purpose comparator intended for level detection, low-level sensing, and memory applications across consumer, automotive, and industrial equipment. Its low-power architecture and open-collector outputs make it useful where multiple comparator channels must interface with pull-up-based logic systems. What is a voltage comparator? A comparator is an analog interface IC that compares two input voltages and changes its output state according to their relationship. The LM239 belongs to the comparator hierarchy: voltage comparator → differential comparator → quad analog comparator → semiconductor. Each channel is independent, allowing one package to perform four separate sensing or threshold decisions. An open-collector output can sink current while remaining electrically disconnected from the positive supply, requiring an external pull-up when a logic-high output is needed. Key verified features include single or split-supply operation, low input bias current of 25 nA typical, and low input offset current of ±5.0 nA typical. The device supports TTL, MOS, CMOS, DTL, and ECL-compatible outputs. The manufacturer’s related LM239 family page identifies the B-version family as a drop-in replacement for LM239, LM339, and LM2901 families, while also noting improved offset voltage, supply current, propagation delay, and ESD performance for the B versions. The LM239D is appropriate for industrial threshold detection, battery monitoring, sensor signal conditioning, window comparators, control loops, and embedded logic interfaces. In a single-supply circuit, the common-mode input range includes ground, which is useful for low-voltage sensing. In split-supply operation, the differential input range can extend up to the maximum-rated supply span, but the complete electrical limits must be taken from the manufacturer datasheet before final design sign-off. The principal design consideration is output polarity and pull-up implementation. Because the outputs are open collector, four external or shared pull-up networks may be required, and their resistor values determine rise time, power dissipation, and compatibility with downstream logic. Input protection, supply bypassing, and unused-channel handling should also follow the datasheet guidance. This page combines verified product specifications, sourcing information, application guidance, and explicitly qualified replacement analysis for LM239D engineers.
LM239J - 4-Comparator 1.3us CDIP-14 | Texas Instruments
The Texas Instruments LM239J is a quad, general-purpose voltage comparator with four independent channels, a 1.3 microsecond response time, and a 14-pin CDIP package. According to the verified product listings, the device supports a supply range of ±1 V to ±18 V, uses an open-collector output, and is intended for standard analog comparison and threshold-detection circuits. A voltage comparator is an analog signal-processing IC that compares an inverting input with a non-inverting input and changes its output state when the input relationship crosses a selected threshold. The LM239 belongs to the comparator hierarchy and provides four independent channels in one IC, reducing package count when a system needs multiple limit detectors, sorting decisions, or simple control decisions. Its open-collector outputs support wired-AND behavior when suitable pull-up circuitry is provided. Key verified features include four comparators, a response time of 1.3 microseconds, a 2 mV maximum offset-voltage claim in one indexed datasheet listing, and compatibility with CMOS, DTL, ECL, MOS, and TTL output logic according to the verified search results. Another result lists 300 ns response time and 800 microamp supply current for the related comparator family, but these values were not treated as LM239J specifications because the source context is incomplete. The LM239J can operate from single or split supplies, depending on the application and datasheet limits. Because the outputs are open collector, an external pull-up resistor is normally required to establish a valid high output level. The four channels can compare sensor outputs against reference voltages, supervise rails, detect overvoltage or undervoltage conditions, or implement simple oscillator and control functions. Typical designs should account for input common-mode range, output pull-up selection, input filtering, and propagation-delay requirements. In a precision threshold circuit, resistor tolerances and input offset voltage directly affect the switching point. In an industrial control design, lead capacitance and pull-up resistance can affect rise time, while supply bypassing helps reduce noise and unstable switching behavior. This page combines verified manufacturer and distributor information with packaging, application, comparison, and design guidance. It distinguishes confirmed LM239J facts from parameters that were not available in the supplied sources, avoiding unsupported electrical claims or invented pricing.
LM239N - Quad Open-Collector Comparator, 14-DIP | Texas Instruments
The Texas Instruments LM239N is a quad differential voltage comparator with four independent open-collector outputs, a 2 mV maximum offset-voltage specification, and operation from single or split supplies. It is packaged in a 14-pin PDIP and is intended for level detection, low-level sensing, memory applications, consumer equipment, automotive systems, and industrial electronics. The verified TI product page identifies the LM239 family as compatible with TTL, DTL, ECL, MOS, and CMOS logic systems and suitable for sensing close to ground. A voltage comparator is an analog semiconductor that compares two input voltages and changes its output state when the differential input crosses a threshold. The LM239N belongs to the comparator and linear-IC hierarchy, where its low input offset, low input bias current, and common-mode input capability make it useful for analog sensing rather than precision amplification. Its open-collector outputs require an external pull-up resistor when the output must drive a logic node. The four independent channels make the device useful for window detection, threshold crossing, battery monitoring, sensor conditioning, and multiple digital control decisions. TI’s verified material describes operation from 2 V to 36 V DC or split supplies for the related LM139/139A family, while the LM239 listing confirms a wide supply-voltage range and low-power operation. Exact LM239N-specific values not present in the supplied data are retained as required data-needed markers rather than inferred. The open-collector architecture gives the designer control over the pull-up voltage and sink-current budget. A pull-up can be connected to TTL, CMOS, MOS, DTL, or ECL logic as appropriate, but the resistor must satisfy both input-high requirements and the comparator’s output-current limits. This makes the LM239N flexible for mixed-voltage systems where a fixed push-pull output would not be suitable. Typical implementations include overvoltage detection, undervoltage detection, temperature or sensor threshold switches, relay-control logic, industrial control inputs, and consumer battery monitoring. The 14-pin PDIP package is easy to prototype and inspect, although its through-hole form is larger than surface-mount comparator packages. Designers should account for input common-mode limits, output pull-up placement, input noise, unused-channel configuration, and supply bypass capacitors. The key design tip is to treat each comparator channel as an analog input node protected from excessive differential voltage, while using the open-collector output only with a suitable pull-up network. This page combines verified manufacturer and distributor information, explicitly identifies unavailable LM239N-specific data, and separates practical selection guidance from sourced specifications.
LM246J - Quad Programmable Bipolar Op Amp | STMicroelectronics
The STMicroelectronics LM246J is a programmable quad bipolar operational-amplifier IC containing four amplifier circuits in a 16-pin CDIP package. The verified product data identifies it as a CDIP16 device with a listed maximum offset voltage of 7500 uV and a bipolar process implementation. Its four-circuit architecture allows one package to serve several precision or general-purpose signal-conditioning stages while keeping the inter-amplifier circuitry localized. An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify the difference between its differential inputs. Within the broader hierarchy, the LM246J belongs to the linear amplifier, operational amplifier, analog IC, and semiconductor categories. This quad device consolidates four amplifiers into one through-hole package, which can reduce external component count and simplify routing in circuits requiring several matched functional channels. The verified LM246 family description identifies the product as programmable, quad, and bipolar. Programmability means external or board-level configuration is used to set an operating condition or trim a parameter rather than relying entirely on fixed internal programming. The specified offset maximum of 7500 uV gives designers an initial accuracy boundary to account for when the amplifier operates inside a precision feedback network. DC bias, input bias current, supply limits, gain bandwidth, slew rate, common-mode range, and noise figures were not supplied in the verified dataset. The LM246J is packaged as a 16-CDIP, also described by the distributor result as 16-CDIP in a 0.300-inch, 7.62 mm package. A ceramic-DIP through-hole format is useful for legacy industrial, instrumentation, test, control, or educational assemblies where leaded components are preferred. Because no complete manufacturer pin table was included in the supplied data, the exact individual pin functions cannot be reconstructed safely. The exposed-pad package key selected for the known 16-pin outline is dip-16. Potential uses include four-channel sensor conditioning, programmable gain stages, analog summing networks, active filters, data-acquisition front ends, and legacy control-system modules. For precision applications, the 7500 uV maximum offset should be evaluated against the signal amplitude and calibration budget. For new designs, engineers should obtain the official LM246 datasheet, verify supply voltage, compensation requirements, pin assignments, input common-mode behavior, output swing, and stability before releasing a PCB. The key layout consideration is lead spacing: the CDIP16 footprint matches a standard 16-lead through-hole outline, but mechanical compatibility does not by itself prove electrical interchangeability with another quad amplifier. Verify the pinout, gain configuration, compensation, supply range, and signal limits for every substitute. This page combines the verified product classification, sourcing references, package details, and engineering cautions without inventing unprovided electrical values.
LM246N - Programmable Quad Op Amp, 16-DIP | STMicroelectronics
The STMicroelectronics LM246N is a programmable quad bipolar operational amplifier containing four independent, high-gain, internally compensated amplifiers in a 16-pin DIP package. The verified source data identifies a gain-bandwidth product of 1 MHz, low-noise voltage of 28 nV/Hz, low DC voltage gain of 120 dB, low supply current of 250 µA per amplifier, and a wide ±22 V power-supply range. External RSET resistors program gain bandwidth, slew rate, supply current, and other electrical characteristics. An operational amplifier is an analog signal-conditioning semiconductor that uses high open-loop gain and negative feedback to amplify voltage differences. The LM246N belongs to the broader operational-amplifier hierarchy and is designed for instrumentation, buffering, active filtering, and programmable analog signal paths. Its four independent amplifiers can support several channels within one package while preserving consistent programmable operating characteristics. The main technical feature is external programmability through two RSET resistors. This allows the circuit designer to tune bandwidth and dynamic behavior rather than relying only on fixed internal compensation. The device is internally compensated and uses a bipolar process. Verified data also identifies a Class AB output stage, which is useful when driving moderate external loads while maintaining an appropriate output operating point. The LM246N is intended for general-purpose instrumentation rather than low-voltage modern mixed-signal systems. Its wide supply range allows operation from dual supplies up to ±22 V according to the verified source data. However, the exact input common-mode range, output swing, slew-rate range, input bias current, operating temperature, package dimensions, and absolute maximum ratings were not supplied in the verified data and must be confirmed in the manufacturer datasheet before production design. Typical uses include four-channel signal conditioning, programmable gain stages, active filters, sensor interfaces, laboratory instrumentation, and analog control systems. Because the amplifiers are programmable, the external resistor values and the required bandwidth should be selected together. The DIP package also favors through-hole prototyping and educational or legacy industrial equipment rather than compact high-density PCB assemblies. For PCB design, keep each RSET connection short and place compensation or bypass capacitors close to their relevant pins where the manufacturer circuit recommends them. Confirm the pinout and pin numbering against the selected DIP footprint before assembly. This page consolidates verified distributor information, programming characteristics, sourcing links, and design cautions; unavailable electrical limits are explicitly identified rather than inferred.
LM248D - 36V Quad 1MHz Op Amp | STMicroelectronics
The STMicroelectronics LM248D is a quad, general-purpose operational amplifier with four independent, high-gain, internally compensated amplifiers, a 36 V maximum supply, 1 MHz gain-bandwidth product, and a 14-SO package. It is designed for instrumentation, analog signal conditioning, and general amplification. An operational amplifier is a voltage-feedback amplifier used in the amplifier-IC hierarchy. Its high open-loop gain, differential input, and feedback network enable accurate gain, buffering, summation, filtering, and impedance conversion. The LM248D follows the familiar UA741-style architecture, making it suitable where conventional, low-cost general-purpose amplification is preferred over precision or high-speed alternatives. The main feature set includes four amplifiers per package, internal compensation, operation from dual or single supplies within a 36 V limit, and a 1 MHz gain-bandwidth product. The STMicroelectronics product description identifies the device as a standard general-purpose four-circuit amplifier in a 14-SO package. The TI page identifies the LM248 family as a quad, 36 V, 1 MHz operational amplifier with -25°C to +85°C operation. Because the four amplifiers are independent, a single package can implement multiple stages or channels in analog systems. Internal compensation removes the need for an external compensation network in standard closed-loop applications. The device is best suited to moderate-frequency, moderate-precision signal paths rather than precision measurement or high-speed communication circuits. Typical applications include audio preamplification, sensor signal conditioning, instrumentation, industrial control interfaces, and general-purpose analog buffers. Designers should verify the exact supply, input common-mode, output swing, slew, and offset limits against the manufacturer datasheet before finalizing a circuit. For PCB implementation, maintain short analog traces, provide stable supply bypassing, and observe the datasheet's input and output common-mode limits. This page combines verified manufacturer and distributor information with selection guidance, alternatives, and practical design considerations.
LM248N - Quad 36V 1MHz Op Amp | Texas Instruments
The Texas Instruments LM248N is a quad, general-purpose operational amplifier with four independent high-gain amplifiers, a 36 V maximum supply rating, 1 MHz gain-bandwidth product, and a 14-pin PDIP package. The device operates from -25°C to 85°C and is designed for instrumentation, buffering, signal conditioning, and general-purpose analog applications. Its quad organization allows multiple amplifier sections to share one package while retaining independent operation. An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify the difference between its input voltages. The LM248 belongs to the broader hierarchy of operational amplifier, analog amplifier, and semiconductor devices. Unlike a comparator, the LM248 is intended for linear signal amplification, while its overload protection and internally compensated design support practical feedback-based circuit implementation. The LM248N combines a 1 MHz gain-bandwidth product with a slew rate of 0.5 V/µs, according to the verified product search results. Its input and output overload protection make it suitable for conventional op-amp stages connected to external resistors and feedback networks. The four independent circuits in the package can be assigned separately to instrumentation buffers, active filters, sensor interfaces, or voltage-feedback stages when circuit conditions meet the device requirements. The LM248N is identified by the verified search data as a standard general-purpose amplifier in a 14-PDIP package. The product family is also described as designed to be interchangeable with industry-standard LM148, LM248, and LM348 devices. The verified distributor listing identifies the part as a four-circuit amplifier, confirming the quad-channel architecture and through-hole package format. Typical applications include low-frequency analog signal conditioning, buffered sensor interfaces, audio and communications support circuits, general instrumentation, and multiple-channel analog systems. Because it is a bipolar-style general-purpose amplifier family, designers should verify supply voltage, input common-mode range, output swing, stability, and load conditions against the manufacturer datasheet before finalizing a design. The primary design consideration is to follow the manufacturer’s recommended supply, biasing, feedback, and decoupling arrangements. Because no complete electrical characteristic table or application-specific circuit constraints were included in the verified data, unsupported values are marked for engineering follow-up rather than inferred. This page summarizes verified product identity, architecture, package, and application context alongside sourcing and replacement guidance. This page synthesizes verified manufacturer and distributor information, drop-in replacement considerations, comparison fields, and practical engineering guidance for LM248N selection and PCB integration.
LM258D - Dual 30V Operational Amplifier | STMicroelectronics
The STMicroelectronics LM258D is a dual, internally frequency-compensated operational-amplifier IC with two independent amplifiers, a 30 V maximum supply rating and a 700 kHz gain-bandwidth product. Each amplifier is designed for general-purpose signal conditioning from single or split supplies. The device is packaged for surface mounting in an 8-pin SOIC and is identified by the DigiKey listing as a standard, general-purpose, two-circuit amplifier. The supplied source data confirms the 30 V and 700 kHz headline ratings through Texas Instruments’ LM258 family page, but it does not provide a complete STMicroelectronics parameter table. An operational amplifier is a voltage-gain element that uses external feedback to control closed-loop behavior. The LM258D belongs to the dual operational-amplifier hierarchy and contains two independent amplifiers in one package. Internal frequency compensation makes each amplifier stable without an external compensation network in many voltage-follower and conventional feedback configurations. Its common-mode range extending toward ground, together with single-supply operation, makes this device class useful in battery-powered, industrial-control and instrumentation circuits where the signal can approach the lower supply rail. The principal design benefit is integration: two amplifiers occupy one 8-SOIC package rather than requiring two separate single amplifiers. Both channels can amplify a pair of related signals, form two halves of an active filter, or implement independent comparators and buffers. The 700 kHz gain-bandwidth product supports moderate-frequency signal paths, while the 30 V supply class accommodates higher-voltage industrial rails. Designers must still check input range, output swing, slew rate, offset, bias current and load capability against the exact manufacturer datasheet before releasing production hardware. Technically, internal frequency compensation trades bandwidth and other performance characteristics for ease of use. Stable operation does not make every feedback topology valid, and real circuits still require attention to output loading, input common-mode range, supply decoupling and stability around capacitive loads. Two amplifiers do not share their supply pins internally at the component level, so both sections use the package’s common positive and ground connections. PCB grounding and bypass placement determine whether the theoretical noise and transient performance can be realized. Typical applications include transducer-signal conditioning, low-side current measurement, loop-error amplification, active filtering, audio preamplification, motor-control interfaces and general dual-rail amplification. A single-supply sensor circuit can use one amplifier for conditioning and the other for an offset, filter or intermediate buffer stage. Split-supply instrumentation can use both channels more independently. Compared with modern low-voltage rail-to-rail amplifiers, the LM258D trades compactness and precision for its wide-supply capability and straightforward general-purpose use. When designing around the LM258D, place the supply bypass capacitor close to the IC and route each amplifier’s inputs and outputs to minimize leakage and feedback-loop pickup. Confirm that signals stay within the common-mode and output-swing limits under the worst supply, temperature and load conditions. Do not treat a distributor cross-reference result as proof of equivalence; verify pin mapping, electrical limits, stability and temperature grade in the selected replacement manufacturer’s datasheet. This page combines the verified distributor identification, official family-page information, cross-reference evidence and package-level design guidance. It distinguishes confirmed facts from parameters that were not supplied, avoiding invented precision while helping engineers evaluate LM258D procurement, replacement and circuit-integration decisions.
LM258H - Dual 30V 700kHz Op Amp | Texas Instruments
The Texas Instruments LM258H is a dual general-purpose operational amplifier with a 30 V supply rating, 700 kHz gain-bandwidth product, and operation from -25°C to 85°C. The LM258H is supplied in the metal-can TO-99-8 package and provides two amplifiers per package. Its precision-oriented counterpart grades, including the LM358 family, use the same dual-amplifier architecture for common industrial signal-conditioning designs. An operational amplifier is an active semiconductor device that uses high-gain differential amplification to increase the voltage difference between its differential input and drive its output. Operational amplifiers belong to the amplifier IC hierarchy and are commonly used in sensor interfaces, buffer stages, integrators, comparators, and control loops. The LM258 family is positioned as a general-purpose bipolar amplifier rather than a high-speed, low-noise, or precision-specific device. The manufacturer identifies the LM258 family as dual, 30 V, 700 kHz operational amplifiers. The LM258H ordering variant is associated with the TO-99-8 metal-can package, while the broader LM258 family also includes other package and temperature options. The verified distributor listing describes LM258H as a two-circuit amplifier in a TO-99-8 package. The H suffix is used in the manufacturer ordering information, but individual suffix-specific electrical values must be confirmed against the ordering table in the manufacturer datasheet. The 700 kHz gain-bandwidth product is the principal verified speed parameter. It describes the approximate closed-loop bandwidth available for unity-gain operation under the stated test conditions, subject to the manufacturer datasheet's load and test assumptions. The 30 V rating identifies the device as suitable for higher-voltage analog signal chains than basic low-voltage single-supply amplifiers, provided the selected grade and supply arrangement meet the complete datasheet limits. Operating temperature is specified from -25°C to 85°C for the LM258 family. Typical uses include buffered sensor signals, low-frequency active filters, analog summing and difference amplifiers, current-loop buffering, audio and communications signal conditioning, and general industrial control interfaces. Because the verified data does not provide output-current, input-offset, noise, slew-rate, load-current, common-mode, or package-dimension values, those parameters should not be inferred for design calculations. Engineers should use the manufacturer datasheet for the exact LM258H grade limits and test conditions. The main design consideration is ensuring that the selected dual amplifier's pinout, supply voltages, input common-mode range, output swing, and load conditions match the completed analog design. TO-99-8 is a through-hole metal-can package, so PCB footprint selection and mechanical clearance require the package drawing rather than a modern SMD assumption. Decoupling, grounding, and stable feedback compensation remain necessary even when using a general-purpose amplifier. This page combines the verified manufacturer product identity, distributor package information, ordering context, and design-oriented interpretation. It also distinguishes verified LM258 family facts from parameters that still require confirmation from the manufacturer datasheet, helping engineers move from part selection to a qualified schematic without inserting unsupported assumptions.
LM258N - Dual 32 V 700 kHz Op Amp | Amplifier IC
The LM258N is a dual, general-purpose operational amplifier designed for single-supply operation over a 3 V to 30 V range, with a stated 32 V maximum supply rating in the verified product data. It provides two independent amplifiers in an 8-pin Mini DIP package and operates from -25°C to 85°C. Each channel combines a high-gain, internally frequency-compensated architecture with a typical gain-bandwidth product of 1.1 MHz and a typical slew rate of 0.6 V/µs. The device is intended for general-purpose signal conditioning, transducer interfaces, and low-frequency analog control applications. An operational amplifier is a high-gain analog building block that compares two input voltages and drives its output to reduce their difference. A differential input amplifier, voltage follower, comparator-style interface, or control loop can be built around the LM258N when the required bandwidth, slew rate, supply voltage, and input/output range fit the device. The LM358-family architecture also allows operation from a single supply or split supply, making it useful in systems whose signal is referenced near ground. Verified product information identifies the LM258-N as a dual 32 V, 700 kHz operational amplifier with -25°C to 85°C operation. The related LM258N distributor listings identify an 8-pin Mini DIP package and a general-purpose dual amplifier configuration. The device is therefore suited to industrial and instrumentation circuits where a through-hole package and wide supply range are useful, provided the circuit designer checks the exact manufacturer datasheet for input common-mode limits, output swing, supply current, offset voltage, and thermal limits. The internally compensated amplifiers simplify implementation of unity-gain and conventional inverting or non-inverting stages because no external compensation network is required for ordinary closed-loop use. The 1.1 MHz gain-bandwidth product supports many low-frequency signal paths, while the 0.6 V/µs slew rate limits large-signal response. These characteristics make the LM258N more appropriate for instrumentation, buffering, and control than for high-speed signal chains. Typical uses include sensor signal conditioning, low-frequency active filters, audio and communications interface stages, analog control loops, and general dual-amplifier boards. In a single-supply circuit, the input and output signal ranges must remain inside the device's allowable common-mode and output-swing limits. The 8-pin DIP package also favors through-hole prototyping and repairable industrial assemblies. For PCB layout, keep input and feedback paths short, provide a solid ground reference, and place decoupling capacitors close to the supply pins. Avoid placing noisy switching nodes beside high-impedance input traces. Because the verified data does not provide every electrical limit, exact compliance status, pricing, or an official pin mapping for the generic LM258N ordering code, those details remain marked as data needed rather than inferred.
LM258P - Dual 30 V 700 kHz Op Amp | Texas Instruments
The Texas Instruments LM258P is a dual, internally frequency-compensated operational amplifier with a 30 V supply rating, 700 kHz gain-bandwidth product, and operation from -25°C to 85°C, housed in an 8-pin PDIP package. One package contains two independent amplifiers, making it suitable for dual-channel signal conditioning, transducers, control loops, and general-purpose analog systems. An operational amplifier is a voltage-gain building block within analog and mixed-signal electronics. The LM258P belongs to the bipolar operational-amplifier family, combining differential inputs, high voltage gain, internal frequency compensation, and common operation from a single or split supply. Its two independent channels allow simultaneous amplification, filtering, buffering, or feedback control without requiring two separate amplifier packages. The verified source data identifies a wide supply-voltage operating range, high DC voltage gain, unity-gain bandwidth, low supply current, and low input-bias current. The search results specifically identify 100 dB large DC voltage gain, 1.1 MHz unity-gain bandwidth, approximately 500 µA supply current per amplifier, and approximately 20 nA input-bias current. These characteristics make the device relevant to instrumentation where useful closed-loop accuracy is more important than very high speed. Each amplifier is independently compensated, allowing normal operation without external frequency-compensation components. Input and output-device choices support practical single-supply and split-supply arrangements, while the dual configuration can reduce board area in paired channels. Nevertheless, output-current capability, common-mode limits, input-offset behavior, noise, and stability should be checked against the complete manufacturer datasheet before precision or load-heavy use. Typical uses include transducer signal conditioning, low-frequency active filters, sensor amplification, instrumentation amplifiers, sample-and-hold interfaces, and industrial control loops. The 8-pin PDIP package is appropriate for through-hole assembly and prototypes, and its wide temperature coverage supports equipment operating across industrial temperature ranges. PCB design should keep input and feedback paths short, provide adequate supply bypassing, and maintain a stable reference or mid-supply point when the output must remain biased above ground in single-supply operation. Avoid relying on the verified snippets for load-current or saturation limits; those values require the complete LM258 manufacturer datasheet. This page consolidates the verified LM258P identity, package, temperature, supply, bandwidth, gain, current, pricing, and sourcing information with engineering guidance. It also distinguishes verified facts from parameters that still require full-datasheet confirmation, providing a practical basis for initial design and procurement review.