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OPA2227P

OPA2227P - Dual Precision Low-Noise Op Amp | Texas Instruments

Texas Instruments OPA2227P is a dual high-precision, low-noise operational amplifier with two amplifier circuits in an 8-pin PDIP package. Its stated characteristics include 3 nV/√Hz noise, 10 V/µs slew rate, 5 µs settling time, and 138 dB common-mode rejection, making it suitable for precision DC and AC signal conditioning. The device is specified for operation from -40°C to +85°C. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. Its place in the signal-chain hierarchy is operational amplifier → analog IC → semiconductor, while precision operation refers to maintaining accurate DC gain and offset behavior as well as low-distortion AC performance. The dual configuration provides two amplifiers in one package, reducing board area compared with two separate single-channel devices. The OPA2227P combines low noise with wide bandwidth and high precision. The 3 nV/√Hz noise figure makes it relevant to sensor signals, instrumentation amplifiers, audio paths, and other applications in which input-referred noise limits usable resolution. Its 138 dB CMRR helps reject common-mode interference, while the 10 V/µs slew rate and 5 µs settling characteristics support faster closed-loop signal transitions than precision amplifiers with narrower bandwidth. OPA2227 and OPA228 devices are identified by Texas Instruments as pin-for-pin replacements for industry-standard OP27 and OP37 devices. The OPA2227P therefore supports legacy precision-amplifier designs while offering a dual-channel implementation. Its internal characteristics are suited to both DC measurement and AC-coupled applications where low noise, stable gain, and common-mode rejection are important. Typical uses include precision measurement front ends, low-level sensor amplifiers, buffered analog outputs, laboratory instrumentation, audio equipment, and active analog filters. The PDIP-8 package is suited to through-hole prototyping and designs where a mechanically robust package and readily visible connections are useful. Board-level compatibility still requires verification of supply voltage, input common-mode range, output swing, and stability configuration. Design with the manufacturer datasheet as the controlling reference for maximum supply voltage, input bias current, offset voltage, open-loop gain, output-current capability, and recommended compensation. Place a short, low-impedance return from the power-supply pins to the ground plane, and provide adequate bypass capacitance close to the device. Avoid placing long copper traces beside sensitive input nets, and confirm that the selected gain and feedback network remain stable at the intended frequency. This product record combines manufacturer ordering information, device-family positioning, precision and noise characteristics, practical application guidance, and drop-in replacement analysis. It helps engineers distinguish the PDIP OPA2227P from related single, dual, quad, and alternate-family variants before committing a PCB footprint or production release.

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OPA2237EA/2K5

OPA2237EA/2K5 - Dual 1.5MHz Op Amp, 750µV Offset | TI

The Texas Instruments OPA2237EA/2K5 is a dual-channel, single-supply operational amplifier from TI's MicroAmplifier™ Series, offering 1.5 MHz bandwidth and 0.5 V/µs slew rate in an 8-pin MSOP/VSSOP package. The device features a maximum offset voltage of 750 µV, a low quiescent current of 350 µA per channel maximum, and operates from a wide supply range of +2.7V to +36V single supply (±1.35V to ±18V dual supply). The tape-and-reel /2K5 suffix indicates a 2,500-unit reel packaging for high-volume SMT assembly. A dual operational amplifier (op amp) is a single integrated circuit that contains two independent op-amp cells sharing common power pins; it is a member of the broader linear IC hierarchy that includes op amps -> amplifiers -> signal conditioning ICs -> analog ICs -> semiconductors. The OPA2237's dual configuration saves PCB area versus two single op amps while keeping channel-to-channel matching tight for instrumentation paths. Key features include low input bias current (~20 nA), wide bandwidth suitable for active filters and audio preamplifiers, and MicroAmplifier-series miniaturization that targets space-limited portable designs. The 750 µV maximum offset makes the part accurate enough for sensor signal conditioning without external trimming, while the 350 µA quiescent current keeps battery drain modest. Architecturally, the OPA2237 uses a bipolar input stage optimized for low-offset single-supply operation, with internal compensation that stabilizes the part at unity gain. The wide supply range (±18V or +36V single-supply) lets one part cover both low-voltage battery and higher-voltage industrial signal chains. Typical applications include battery-powered instrumentation, PCMCIA cards, portable medical devices, transducer amplifiers, and general-purpose signal conditioning in industrial and consumer designs. The MSOP-8 footprint is footprint-compatible with the SOIC-8 OPA2237UA variant for layout reuse. When designing with this op amp, observe the input common-mode range that includes the negative rail (true single-supply operation) and use a low-impedance ground return to keep offset drift under temperature. Add an output resistor if driving capacitive loads above 1 nF to maintain phase margin. This page synthesizes verified distributor pricing, drop-in alternatives, comparison data, and engineering design notes not found in the manufacturer datasheet alone.

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OPA2277P

OPA2277P - 10µV Precision Dual Op Amp | Texas Instruments

Texas Instruments OPA2277P is a dual-circuit, high-precision, low-power operational amplifier offering 10 µV offset voltage and 0.1 µV/°C offset drift in an 8-pin PDIP package. Designed as an upgrade to the industry-standard OP-177, the OPAx277 family combines improved noise performance, a wider output-voltage swing, twice the speed, and half the quiescent current of that established precision-amplifier reference. An operational amplifier is a voltage-controlled differential amplifier whose inverting and non-inverting inputs determine the gain and output behavior of an analog signal chain. The precision operational-amplifier category sits between general-purpose amplifiers and application-specific signal-conditioning ICs. It is part of the broader amplifier hierarchy and supports instrumentation, sensor measurement, control, conversion, and reference-buffer circuits where low offset, low drift, bias-current control, and power-supply rejection are important. The OPA2277P’s 10 µV offset and 0.1 µV/°C drift are the principal precision specifications. These characteristics reduce output error in high-gain circuits, particularly when small sensor signals are amplified over a wide temperature range. Low bias current supports high-impedance sources, while high common-mode rejection and high power-supply rejection improve immunity to signals shared by both inputs and to disturbances originating from the supply rails. The device contains two amplifier channels in one package. Its improved noise and wider output swing make it useful in precision integrators, low-level signal conditioners, measurement systems, and analog control loops. The low quiescent current also suits battery-operated and compact industrial equipment where each milliamp of supply demand can affect the achievable operating duration. The two-channel package reduces component count when the signal chain needs matched functional channels. OPA2277P is offered in the 8-pin PDIP package, making it suitable for through-hole assembly and legacy industrial or instrumentation platforms that do not require a surface-mount package. Designers should preserve the polarity of the differential inputs, avoid exceeding the power-supply ratings, and provide suitable bypassing at the supply pins. Stable operation also depends on maintaining the required output-load conditions and preventing excessive output saturation. This product summary combines the manufacturer’s device description with practical selection guidance for engineers evaluating precision signal chains. It distinguishes the OPA2277P from lead-free ordering variants, identifies the package and pin assignments, and explains where offset, drift, bias current, noise, and supply rejection matter. Current commercial availability, lead time, and a formal quote should be handled through XAIPART’s Request a Quote form rather than static pricing information.

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OPA2277UA

OPA2277UA - 10µV Dual Precision Op Amp | Texas Instruments

The Texas Instruments OPA2277UA is a dual-channel, high-precision, low-power operational amplifier supplied in an 8-pin SOIC (D-package) that replaces the legacy OP-177 with substantially better noise, wider output swing, twice the speed, and half the quiescent current. The OPA2277UA delivers an ultra-low input offset voltage of 10 µV (max), an ultra-low offset drift of ±0.1 µV/°C, an open-loop gain of 134 dB, common-mode rejection of 140 dB, and high power-supply rejection while drawing only 800 µA of quiescent current per channel. It is specified for ±2 V to ±18 V supplies, swings to within 1 V of each rail on a ±15 V supply, and operates across the -40°C to +125°C industrial temperature range. Background knowledge: A precision op-amp (operational amplifier) is a high-gain DC-coupled analog building block whose input offset voltage, offset drift, bias current, and noise are engineered to far tighter limits than those of a general-purpose op-amp. Within the signal-chain hierarchy, the OPA2277 sits in the "precision" tier between general-purpose amplifiers (e.g. OPA234) and zero-dr chopper-stabilized amplifiers (e.g. OPA2188), drawing meaningfully lower bias current than old bipolar parts (e.g. OP-27) while delivering lower voltage noise than early CMOS parts (e.g. TLC2277). It is functionally a "dual, improved OP-177" intended for bridge amplifiers, strain gauges, thermocouple conditioning, and precision active filters where µV-level DC accuracy must be preserved across -40°C to +125°C. Architecturally, the OPA2277 uses a bipolar transistor input stage with laser-trimmed thin-film resistors, a complementary bipolar output stage capable of driving 2 kΩ loads, and internal compensation that removes the need for an external compensation capacitor. The result is a stable unity-gain device that does not oscillate when used as a buffer, with a gain-bandwidth product of 1 MHz and a 2 V/µs slew rate that supports audio-bandwidth signal conditioning, 16-bit ADC input buffers, and reference-voltage buffers. Typical applications include precision weighing scales and load-cell signal chains (where 10 µV Vos preserves mV-level bridge outputs), industrial process-control 4-20 mA loop transmitters, medical instrumentation front-ends, precision active filters, multi-channel data-acquisition multiplexed front ends, and reference-voltage buffers for 16-bit and 18-bit ADCs. The wide supply range also allows use in ±15 V legacy industrial backplanes. A practical design consideration: although the OPA2277 is unity-gain stable, its 1 MHz GBW means it is best used for DC-accurate low-frequency applications (sub-100 kHz). For higher-bandwidth precision needs, the OPA2227 (same package, 13 MHz GBW) or OPA2156 (pin-compatible, lower noise) are better choices; choose this part when DC accuracy and price dominate over bandwidth. This page synthesizes distributor stock and pricing, AEO-optimized FAQ, and drop-in alternatives that complement the manufacturer datasheet.

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OPA227P

OPA227P - 8MHz, 36V Low-Noise Op Amp | Texas Instruments

The Texas Instruments OPA227P is a single, high-precision operational amplifier with 8 MHz gain-bandwidth product, 2.3 V/µs slew rate, and operation from ±2.5 V to ±18 V in an 8-pin PDIP package. According to the manufacturer product page, the OPA227 family is designed for low noise and low offset voltage applications. An operational amplifier is a voltage-feedback amplifier that uses high open-loop gain to amplify the difference between two input voltages. Within the broader semiconductor hierarchy, this precision operational amplifier belongs to analog signal-chain ICs used for instrumentation, buffering, current-to-voltage conversion, filtering, and low-level sensor amplification. The verified OPA227 family data identifies 8 MHz bandwidth and 2.3 V/µs slew rate, combining useful AC performance with precision DC operation. Its ±2.5 V to ±18 V supply capability permits bipolar rails within the stated range and supports single-supply operation when configured appropriately. The OPA227P uses the same dual-lead 8-pin PDIP form associated with OPA227U. OPA227 is positioned for applications requiring both AC and precision DC performance. Key selection considerations include noise, input offset voltage, common-mode range, output swing, supply voltage, stability with the selected feedback network, and the system noise gain. The P suffix identifies a PDIP package, while the U suffix identifies the surface-mount SOIC option. Typical uses include precision bridge and transducer interfaces, low-level signal conditioning, buffered analog outputs, active filters, laboratory instrumentation, and power-supply feedback loops. In each circuit, the amplifier must remain stable at the intended closed-loop gain and operate without input or output saturation. PCB design should preserve the integrity of high-impedance feedback nodes by keeping input and feedback traces short and minimizing parasitic capacitance. Bypass each supply connection close to the amplifier with suitable decoupling, and route return currents directly to the ground reference rather than through shared copper paths. This page combines the verified Texas Instruments product information with practical package, selection, sourcing, and design guidance. Exact offset, noise-density, input-bias-current, common-mode, output-swing, and temperature values require the manufacturer datasheet because they were not supplied in the verified search data.

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OPA227PA

OPA227PA - Low-Noise Precision Op Amp | Texas Instruments

Texas Instruments OPA227PA is a single-circuit, high-precision operational amplifier optimized for low-noise and low-offset-voltage signal conditioning. The device provides 3 nV/√Hz noise density, a 10 V/µs slew rate, 5 µs settling time, and 138 dB common-mode rejection according to the manufacturer documentation. It is supplied in an 8-pin PDIP package and is specified for operation from -40 °C to 85 °C. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs while using negative feedback to control gain, bandwidth, and output behavior. Within the broader semiconductor hierarchy, OPA227PA is a precision operational amplifier, a linear amplifier and signal-conditioning IC. This category is used in instrumentation, sensor interfaces, laboratory equipment, audio electronics, and precision analog systems where low noise and small input-offset errors influence measurement accuracy. The OPA227PA combines a 10 µV input-offset voltage with 3 nV/√Hz noise density and a 10 V/µs slew rate. Its 138 dB CMRR indicates strong rejection of common-mode signals, while the 5 µs settling specification supports accurate operation after rapid input or output transitions. The 18 V maximum supply voltage cited in product data provides a useful operating limit for conventional bipolar or dual-supply analog designs. Texas Instruments describes the OPAx227 family as a pin-for-pin replacement for the industry-standard OP27 and OP37, with substantial performance improvements. This relationship makes pin compatibility an important design consideration when replacing older precision amplifiers. Because the OPA227PA is a single-amplifier version, board designers should confirm the exact pin functions in the manufacturer datasheet before modifying a board that originally carried a different package or channel configuration. Typical applications include precision sensor amplifiers, low-level current-to-voltage converters, laboratory measurement front ends, audio preamplifiers, and buffered analog signal chains. In each case, the low 3 nV/√Hz noise density reduces the input-referred noise contribution, while the 10 µV offset specification limits signal-chain error near the zero-input operating point. The 8-pin PDIP package also facilitates prototyping, socketed assemblies, and through-hole industrial equipment. For stable operation, place input and feedback components close to the amplifier pins, maintain the required bypass-capacitor arrangement, and avoid long PCB traces in high-gain feedback loops. Input and output voltages must remain within the device's common-mode and supply limits. Stable operation also depends on maintaining adequate phase margin with the selected gain and load, particularly when driving capacitive loads or operating at high closed-loop gain. This product page consolidates the manufacturer specifications, package details, application guidance, drop-in replacement context, and practical design notes needed to evaluate OPA227PA. It also distinguishes direct footprint compatibility from broader functional similarity, helping engineers identify the correct replacement while protecting signal-integrity and measurement performance.

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OPA227U

OPA227U - High Precision Low Noise Op Amp | Texas Instruments

The Texas Instruments OPA227U is a high-precision, low-noise operational amplifier that combines wide bandwidth with excellent DC precision in an 8-pin SOIC package. It features 3 nV/sqrt(Hz) input voltage noise density, 2.3 V/us slew rate, 8 MHz unity-gain bandwidth, and 138 dB open-loop CMRR, making it suitable for both precision DC and wideband AC signal conditioning. The OPA227U is unity-gain stable, with 5 us settling time to 0.1% and 75 uV maximum offset voltage, addressing the demanding requirements of instrumentation, audio, and data acquisition front-ends. An operational amplifier (op amp) is a high-gain DC-coupled electronic voltage amplifier with differential inputs and a single-ended output. Within the broader analog semiconductor taxonomy, an op amp belongs to the linear IC family, and the precision op amp sub-category is further characterized by ultra-low offset voltage, low drift, low bias current, and high common-mode rejection ratio (CMRR). The OPA227U occupies a position above general-purpose op amps (such as the LM358) and below chopper-stabilized amplifiers, targeting applications that require both AC fidelity and DC accuracy in a single device. The OPA227U is built on a complementary bipolar process that delivers 5 us settling time to 16-bit accuracy, a substantial improvement over legacy OP-27 and OP-177 designs. Its 10 nA maximum input bias current, 138 dB minimum CMRR, and 160 dB minimum open-loop gain enable the device to maintain precision across wide common-mode and temperature ranges. Single, dual, and quad channel versions (OPA227, OPA2227, OPA4227) share the same internal compensation and pinout, allowing portable designs to scale channels without redesign. Typical applications include precision instrumentation, active filters, data acquisition systems, professional audio equipment, and test & measurement front-ends. The combination of low noise and high DC accuracy makes the OPA227U particularly well-suited for 16-bit and 18-bit ADC driver circuits, weigh scales, thermocouple amplifiers, and medical instrumentation. Operating from +/-2.5 V to +/-18 V dual supplies or 5 V to 36 V single supply, the device adapts to industrial and battery-powered designs. When designing with the OPA227U, observe standard precision op-amp practices: keep input traces short and guarded to preserve CMRR, place a 1 nF to 10 nF ceramic bypass capacitor close to the supply pins, and use low-thermal-EMF PCB materials for high-gain stages. A 100 ohm series output resistor isolates the amplifier from capacitive loads greater than 1 nF to prevent ringing. The OPA227U is a direct upgrade path for legacy OP-27 designs, providing a quieter, wider-bandwidth, lower-distortion alternative in the same SOIC-8 footprint. This page synthesizes distributor pricing, drop-in alternative cross-references, and practical design notes for the OPA227U. The information below is curated for engineers evaluating the part for new designs, second-source qualification, or legacy OP-27/OP-177 upgrades.

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OPA228P

OPA228P - 33MHz, 3nV/√Hz Precision Amplifier | TI

Texas Instruments OPA228P is a high-precision, low-noise operational amplifier featuring 33 MHz gain-bandwidth performance and 3 nV/√Hz input-noise density, supplied in an 8-pin PDIP package for a temperature range of -55°C to 125°C. It is intended for applications that require both accurate DC measurements and wideband AC signal handling. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. The precision amplifier category belongs to the broader operational-amplifier, analog-amplifier, and semiconductor hierarchies. The OPA228P occupies the low-noise, high-precision portion of that market because its published 3 nV/√Hz noise density supports accurate extraction of small signals, while its 33 MHz bandwidth allows the same device to process higher-frequency signals without requiring separate amplifier stages. The most important published characteristics are the 33 MHz gain-bandwidth product, 3 nV/√Hz input-noise density, single-amplifier configuration, and 8-pin PDIP package. The -55°C to 125°C operating range supports applications across extended industrial environments. Because it is packaged in a through-hole PDIP rather than a compact surface-mount package, the device is especially practical for laboratory instrumentation, precision measurement equipment, audio and analog test systems, and prototypes where socketed construction or hand assembly remains valuable. OPA228 and OPA227 devices are identified by Texas Instruments as pin-for-pin replacements for the industry-standard OP27 and OP37 families. This relationship supports legacy-design migration because engineers can focus on verifying offset, bias-current, supply, and stability requirements rather than redesigning the footprint. OPA228P specifically provides a single amplifier in the 8-pin PDIP configuration; dual and quad devices in the broader family serve different channel-count requirements. OPA228P is most appropriate for precision signal-conditioning paths, low-level sensor amplification, instrumentation amplifiers, audio measurement circuits, and laboratory measurement systems. Engineers should preserve the circuit topology and decoupling practices associated with the original OP27 or OP37 design while confirming that the operating points remain within the OPA228P specifications. For new layouts, verify input-offset requirements, bias-current behavior, output swing, supply range, noise contribution, and stability with external compensation or load capacitance. The 33 MHz bandwidth means that board layout, source impedance, grounding, and feedback-loop behavior remain important even when the target signal is predominantly low frequency. This page consolidates the verified manufacturer information, distributor pricing, same-package replacement options, and application-focused engineering guidance. It distinguishes documented OPA228P characteristics from unverified parameters and avoids presenting assumed electrical limits as manufacturer specifications.

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OPA228PA

OPA228PA - 33MHz Low-Noise Precision Op Amp | Texas Instruments

The Texas Instruments OPA228PA is a high-precision, low-noise operational amplifier with a 33 MHz gain-bandwidth product, 3 nV/√Hz input-noise density, and an 8-pin DIP package. The OPA228 family combines precision DC performance with wide bandwidth for applications requiring accurate signal amplification across both low-frequency and AC signal paths. Its minimum recommended closed-loop gain is 5, making it particularly appropriate for instrumentation, filter, and signal-conditioning circuits that do not require unity-gain stability. An operational amplifier, commonly called an op amp, is a high-gain differential amplifier whose closed-loop behavior is controlled by an external feedback network. The OPA228 belongs to the precision operational-amplifier class within the broader voltage-feedback amplifier hierarchy. This category supports measurement, control, analog-signal conversion, filtering, buffering, and reference-current drive where low noise, low offset, and stable gain are more important than rail-to-rail operation. The headline specifications of the OPA228PA establish its position as a wide-band precision amplifier. Its 33 MHz gain-bandwidth product supports accurate amplification of signals well above audio frequency, while the 3 nV/√Hz input-noise density is valuable when the objective is to preserve small signals rather than merely process large ones. Because the OPA228 is optimized for closed-loop gains of 5 or greater, feedback ratios must be selected with that stability requirement in mind. The 8-pin DIP package also supports conventional through-hole PCB construction and prototype instrumentation. Technically, the OPA228 is designed for demanding precision analog front ends where both AC and DC performance contribute to the final measurement accuracy. High open-loop gain reduces the fraction of the input represented as error, while low input noise improves the signal-to-noise ratio for small source voltages. Its wide bandwidth can also make high-frequency phase margin a decisive layout consideration. The feedback resistor values, compensation network, source impedance, capacitive loading, and grounding arrangement should therefore be treated as part of the amplifier design rather than added afterward. Typical uses include precision instrumentation amplifiers, low-level sensor signal conditioning, active analog filters, audio and communications interfaces, laboratory measurement equipment, and feedback-control loops. The part is especially useful when a designer needs wide bandwidth and low noise together but does not require a unity-gain-stable amplifier. In filter and gain blocks, its gain setting must remain within the stable operating region specified by the manufacturer. The primary design consideration is stability. Use a closed-loop gain of at least 5 unless the application and compensation method are specifically supported by the manufacturer. Place input, feedback, and decoupling connections for short, low-inductance paths, and evaluate capacitive loading at the output. The DIP footprint also makes it practical to prototype a circuit before converting it to a smaller surface-mount package. This product page combines manufacturer specifications, sourcing information, application guidance, comparison fields, and practical design notes into one engineering-focused reference for evaluating the OPA228PA in precision analog designs.

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OPA228U

OPA228U - Precision Low-Noise Op Amp | Texas Instruments

The Texas Instruments OPA228U is a high-precision operational amplifier with 3 nV/√Hz noise, 138 dB common-mode rejection, and operation from ±18 V to ±36 V, housed in an 8-pin SOIC package. It is optimized for closed-loop gains of 5 or greater and combines precision DC performance with wide bandwidth for instrumentation, analog signal conditioning, measurement, and low-noise audio applications. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs while using negative feedback to set the closed-loop gain. The OPA228 belongs to the precision amplifier hierarchy, combining low-noise voltage amplification with accurate DC behavior. Its high precision makes it useful when small sensor signals must be amplified without adding substantial offset, drift, or common-mode error. The main features of the OPA228U include 3 nV/√Hz noise density, a 10 V/µs slew rate, and settling time listed in the manufacturer’s data. The device is intended for high-gain closed-loop configurations, where its precision and bandwidth provide useful signal fidelity. The verified distributor data identifies the part as a single amplifier in an 8-SOIC package and lists ±18 V to ±36 V operating capability. OPA228 devices are designed for applications requiring both AC and precision DC performance. The family combines low noise with high open-loop gain and strong common-mode rejection, helping preserve weak signals in systems where environmental offsets and interference matter. Because this is an analog precision component, supply layout, grounding, input bias-current compensation, and stable feedback components remain important in a complete design. Typical uses include sensor-signal conditioning, precision current and voltage measurement, laboratory instrumentation, audio preamplification, and low-level analog front ends. The OPA228U can be useful where a gain of approximately 5 or higher is appropriate, while applications requiring unity-gain stability should review the family details and choose the OPAx227 rather than assume interchangeability. Designers should check the complete manufacturer data sheet for input common-mode limits, output swing, bias current, offset voltage, supply-current behavior, and compensation requirements before finalizing a circuit. In particular, the 8-pin SOIC footprint requires careful attention to pin orientation and feedback routing. This page combines verified manufacturer and distributor information, package data, source links, and engineering-focused selection guidance to make OPA228U evaluation more actionable than a basic distributor listing alone.

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OPA2335AIDR

OPA2335AIDR - Dual Zero-Drift 5uV 2MHz Op Amp | TI

The Texas Instruments OPA2335AIDR is a dual-channel, zero-drift CMOS operational amplifier (op-amp) in an 8-pin SOIC package, delivering 5 uV (max) offset voltage and 0.05 uV/°C (max) drift over temperature. It provides a 2 MHz gain-bandwidth product, rail-to-rail output swing, and operates from a single 2.7V to 5.5V supply with a typical quiescent current of 285 uA per channel. The "D" suffix indicates tape-and-reel packaging and the "R" suffix designates the SOIC-8 (D) small-outline package. A zero-drift amplifier (also called auto-zero or chopper-stabilized op-amp) is a precision amplifier topology that continuously samples and corrects its own input offset voltage, virtually eliminating the 1/f noise corner and drift over time and temperature. Within the broader taxonomy, zero-drift op-amps sit beneath precision amplifiers and instrumentation amplifiers, above general-purpose CMOS op-amps; they are critical in any signal chain where DC accuracy over temperature matters more than absolute bandwidth. Key features include 5 uV maximum offset voltage, 0.05 uV/°C maximum drift, single-supply operation from 2.7V to 5.5V, 2 MHz GBW, rail-to-rail output, 285 uA quiescent current per channel, and a miniature SOIC-8 footprint. The chopper-stabilized topology eliminates the 1/f noise corner, producing flat noise spectral density down to DC - a feature classical CMOS op-amps cannot match. The OPA2335 uses TI's auto-zeroing architecture that combines a main amplifier with a nulling amplifier. The nulling amplifier periodically samples the offset and applies a correction, yielding near-zero long-term drift. This makes the device particularly well suited for high-gain DC stages, sensor signal conditioning, and 16-bit-plus precision analog-to-digital converter (ADC) front ends where offset drift directly translates to system error. Typical applications include transducer signal conditioning, electronic weighing scales (electronic balances), medical instrumentation such as ECG and patient monitors, temperature measurement (RTD and thermocouple amplifiers), and precision analog front-ends for industrial process control. In each case the OPA2335's near-zero drift preserves calibration accuracy over the full operating temperature range. When designing with the OPA2335, observe the standard zero-drift caveat: the auto-zero clock produces small intermodulation artifacts in the kHz region that can alias into audio-frequency bands - a small post-filter or careful GBW selection mitigates this. Decouple each supply pin with a 0.1 uF ceramic capacitor placed within a few millimeters of the IC. This page synthesizes distributor pricing, drop-in compatible alternatives in the SOIC-8 footprint, parametric comparisons with same-package peers, and practical design notes not found in the manufacturer datasheet alone.

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OPA234E

OPA234E - 36V Precision Operational Amplifier | Texas Instruments

The Texas Instruments OPA234E is a low-power, precision operational amplifier in an 8-VSSOP package, specified for single-supply operation up to +36V and dual-supply operation up to ±18V. The device provides two amplifier channels, 250 uA per amplifier quiescent current, 25 nA maximum input bias current, 100 uV maximum offset voltage, and operation characterized at +2.7V, +5V, and ±15V. Its 8-VSSOP package supports compact analog signal-chain designs. An operational amplifier is a voltage-feedback analog IC used to amplify the difference between two input voltages while providing high input impedance and low output impedance. The OPA234E belongs to the precision operational-amplifier hierarchy, combining low offset, low bias current, and low quiescent current for instrumentation, sensor, and signal-conditioning applications. Its dual-channel architecture reduces package count when a design needs two matched amplifier functions. Key features include a wide supply range, low power consumption, low input bias current, and low offset voltage. The 250 uA-per-amplifier quiescent current is suitable for battery-powered and low-power systems, while the maximum 25 nA input bias current helps preserve sensor accuracy. The device is intended for precision signal conditioning where low bias and offset matter more than very high bandwidth. The verified product data identifies OPA234E as a single circuit in an 8-VSSOP package from the distributor listing, while the related OPA234 family data describes it as a dual operational-amplifier family member. The available source does not provide a verified gain-bandwidth figure, slew rate, noise density, common-mode range, output swing, or complete pinout, so those values must be confirmed from the manufacturer datasheet before design release. Typical applications include low-power sensor interfaces, precision current measurements, instrumentation signal conditioning, battery-powered equipment, and industrial control systems. The low quiescent current helps limit supply demand, but input bias current and offset errors still require careful source-impedance and calibration analysis. For PCB implementation, keep input traces short, provide stable bypassing at the supply pins, and avoid routing sensitive high-impedance inputs beside switching nodes. Verify the exact VSSOP pin mapping, supply limits, input common-mode range, and output swing against the authoritative OPA234 datasheet. This page combines verified distributor descriptions, available family specifications, and engineering guidance while clearly identifying missing parameters. This product data is synthesized from the supplied manufacturer-family and distributor sources rather than a complete manufacturer datasheet specification set.

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OPA234P

OPA234P - Low-Power Precision Dual Op Amp | Texas Instruments

The Texas Instruments OPA234P is a low-power, precision dual operational amplifier in an 8-pin PDIP package. It operates from a single supply as high as +36 V or from dual supplies of ±18 V, with guaranteed performance specified at +2.7 V, +5 V, and ±15 V. Each amplifier consumes 250 µA of quiescent current, making the device suitable for low-power precision signal-conditioning systems that require two amplifiers in one through-hole package. An operational amplifier is a voltage-controlled differential amplifier used to amplify, buffer, filter, compare, or drive analog signals. The OPA234 belongs to the operational-amplifier hierarchy and is positioned as a low-power, precision single-supply amplifier. Its dual-channel configuration reduces component count when an application needs matched amplifier stages, while the wide supply range permits operation from low-voltage systems through conventional analog laboratory rails. The verified manufacturer data identifies three principal advantages: a wide supply range, guaranteed performance at +2.7 V, +5 V, and ±15 V, and low quiescent current of 250 µA per amplifier. The exact offset, bandwidth, slew-rate, input-noise, common-mode-range, and output-current figures are not included in the supplied excerpts and therefore require confirmation from the manufacturer datasheet before precision sizing. OPA234P uses the OPA234-series architecture intended for low-cost, low-voltage, and low-power applications. According to the supplied TI application material, the series combines low offset voltage, high common-mode rejection, high power-supply rejection, and a wide supply range. These characteristics make the device applicable to precision current sensing, instrumentation, sensor signal conditioning, buffering, and active filtering where low supply current and usable single-supply operation are important. Typical applications include battery-powered instrumentation, temperature and pressure sensor interfaces, low-level analog signal conditioning, audio and communication buffers, and active filters. In each case, the OPA234P supplies two amplifier channels in one package, allowing a compact dual-stage architecture without requiring two separate amplifier packages. Designers should verify the complete input common-mode range, output swing, input bias current, offset voltage, frequency response, and stability requirements against the exact operating supply and load. Decoupling and layout should follow the datasheet recommendations, particularly when driving capacitive loads or operating close to the output-swing limits. This product record combines verified source details, application guidance, replacement analysis, and practical design cautions. It clearly separates confirmed specifications from unavailable parameters so engineers can review the manufacturer datasheet before making precision signal-chain decisions.

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OPA234U

OPA234U - Dual 350kHz Precision Op Amp | Texas Instruments

The Texas Instruments OPA234U is a dual, low-power, precision operational amplifier designed for instrumentation and general-purpose signal conditioning. It provides two amplifiers in an 8-pin SOIC package, a 350 kHz gain-bandwidth product, low offset voltage, and low quiescent current of 250 µA per amplifier. The device operates from 2.7 V to 36 V on a single supply or from ±18 V on dual supplies, making it suitable for low-voltage and higher-voltage industrial systems. Its combination of low power, precision offset characteristics, common-mode rejection, and power-supply rejection supports accurate measurement and control applications. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its non-inverting and inverting inputs. In the broader semiconductor hierarchy, the OPA234U belongs to the operational-amplifier, analog-amplifier, and analog IC families. Its low-dropout internal design also allows operation from low-voltage supplies, while its broad supply range provides flexibility in instrumentation, industrial control, and portable equipment. Key features include two precision amplifiers per package, a 350 kHz gain-bandwidth product, 250 µA of quiescent current per amplifier, and guaranteed performance at 2.7 V, 5 V, and ±15 V supplies. Low input offset voltage supports accurate closed-loop gain, while common-mode rejection and power-supply rejection reduce errors caused by unwanted signals. The SOIC-8 package simplifies assembly and provides a practical option where a surface-mount dual amplifier is required. OPA234U combines a conventional precision amplifier architecture with low quiescent-current operation. Its gain-bandwidth product supports signal bandwidths in instrumentation and sensor-conditioning systems, although it is not intended for high-speed video or communications paths. Low input offset voltage is particularly valuable in sensor amplifiers, current-to-voltage converters, and error-amplifier configurations where the difference between two input voltages is small and must be amplified accurately. Typical applications include low-power sensor signal conditioning, precision current measurement, industrial process instrumentation, portable battery-powered equipment, and low-voltage control systems. The dual configuration also allows one package to implement two related amplifier stages, reducing board area and simplifying designs that use matched functions such as differential input and feedback networks. Designers should verify the input common-mode range and output swing against the actual supply voltage before finalizing a circuit. Decoupling capacitors should be placed close to the supply pins, and unused amplifier inputs must be biased so they remain within the valid common-mode range. Stability with capacitive loads and the required noise performance should be verified using the manufacturer datasheet typical curves.

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OPA2350UA/2K5

OPA2350UA/2K5 - Dual 38MHz Rail-to-Rail Op Amp | Texas Instruments

The Texas Instruments OPA2350UA/2K5 is a dual, single-supply, rail-to-rail CMOS operational amplifier featuring 38 MHz gain-bandwidth, 22 V/µs slew rate, and 5 nV/√Hz input-noise density in an 8-pin SOIC package. The two amplifiers share a common package while providing independent input, output, and supply connections for dual-channel signal conditioning. According to the verified TI product information, the device is optimized for low-voltage operation and is intended for high-speed, low-noise analog signal chains. What is a rail-to-rail operational amplifier? A rail-to-rail input amplifier accepts input voltages across nearly the entire supply range, while a rail-to-rail output amplifier can swing its output close to the positive and negative supply rails. The OPA2350 combines these capabilities with high-speed small-signal performance and low noise. In the broader electronics hierarchy, it is a CMOS operational amplifier within the linear-amplifier and signal-conditioning categories. The verified feature set emphasizes 38 MHz bandwidth, 22 V/µs slew rate, 5 nV/√Hz noise density, and rail-to-rail output operation within 10 mV. These figures make the device suitable for applications that require fast settling or low-noise amplification, including sampling analog-to-digital converter input stages. The family is also identified for cell-phone power-amplifier control loops and 75-ohm video-processing drive applications. OPA2350UA/2K5 is specified as a dual amplifier in an 8-pin SOIC (D) package. The verified operating-temperature entry is -40°C to +85°C for this ordering variant. Rail-to-rail input and output behavior is particularly useful in low-voltage systems where the usable signal range is close to the supply limits and where conventional non-rail-to-rail amplifiers would clip or compress the signal. Typical circuit roles include ADC signal conditioning, video-buffer or drive functions, control-loop amplification, and other high-speed analog front-end stages. The dual configuration can process two related channels, such as a differential or paired sensor signal, without requiring two separate packages. Designers should verify the supply voltage, load, stability, and output-swing requirements against the complete manufacturer datasheet before finalizing the analog path. A key design consideration is to preserve the amplifier’s high-speed behavior by minimizing parasitic capacitance and using short, well-routed traces. Decoupling capacitors should be placed close to the supply pins, and sensitive input nodes should avoid proximity to switching nodes and high-current return paths. Because the verified data does not provide a complete electrical parameter table for every operating condition, consult the TI datasheet for precise limit values. This page combines verified TI product facts, distributor availability references, practical design guidance, and structured comparison information. It is intended to help engineers identify whether the OPA2350UA/2K5 matches the required bandwidth, slew-rate, noise, supply, and package constraints.

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OPA2375

OPA2375 - Dual 10MHz Low-Noise CMOS Op Amp | Texas Instruments

The Texas Instruments OPA2375 is a dual-channel, general-purpose CMOS operational amplifier delivering a 10 MHz gain-bandwidth product, an ultra-low broadband noise of 4.6 nV/rtHz (per-channel typical at 10 kHz), and a maximum input offset voltage of 500 uV. It operates from a single 2.2V to 5.5V supply with rail-to-rail output (RRO) and is supplied in an 8-pin TSSOP package (OPA2375IPWR). An operational amplifier is a high-gain voltage amplifier with differential inputs, foundational to the analog signal-chain hierarchy: op amp -> amplifier IC -> analog front end -> semiconductor. The OPA2375 belongs to the OPAx375 family, which includes the single-channel OPA375 and quad-channel OPA4375, all sharing the same core CMOS silicon and specifications. Key features include low broadband noise (3.5 nV/rtHz family figure, 4.6 nV/rtHz for the dual at specified conditions), a wide 10 MHz bandwidth suited to active filters and transimpedance stages, rail-to-rail output swing that maximizes dynamic range on 3.3V and 5V rails, and low offset of 500 uV maximum that reduces DC error without needing auto-zero calibration. CMOS construction gives low input bias current, important for high-impedance sources. Architecturally, the OPA2375 uses a CMOS input pair with a precision trim at wafer test, achieving a strong noise-bandwidth-offset balance that makes the OPAx375 family attractive for precision applications requiring good AC performance at low cost. Unity-gain stability and rail-to-rail output simplify buffer and driver designs. Typical applications include sensor signal conditioning, active anti-aliasing filters ahead of precision ADCs, transimpedance amplifiers for photodiodes, and medical or portable instrumentation where low noise and wide bandwidth on a single 5V rail are required. The dual channel halves board area versus two singles. Design consideration: keep source impedance below approximately 1 kOhm to preserve the nV-level noise floor, and decouple each supply pin with 0.1 uF ceramics placed close to the device.

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OPA2375IDDFR

OPA2375IDDFR - Dual 10MHz 4.6nV Op Amp, TSOT-23-8 | TI

The Texas Instruments OPA2375IDDFR is a dual-channel, 10-MHz, low-noise (4.6 nV per root-hertz) rail-to-rail output (RRO) CMOS operational amplifier operating from a 2.2 V to 5.5 V single supply, housed in an 8-pin TSOT-23-8 (DDF) surface-mount package. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs, and it sits at the core of the analog signal chain hierarchy: op amp -> amplifier IC -> analog integrated circuit -> signal-conditioning subsystem. Within this hierarchy, low-noise precision CMOS amplifiers such as the OPA2375 bridge the gap between general-purpose and precision instrumentation amplifiers, conditioning sensor and transducer signals before analog-to-digital conversion. Key features of the OPA2375IDDFR include a 10 MHz gain-bandwidth, an input-referred broadband noise of only 4.6 nV per root-hertz, a maximum input offset voltage of 500 uV, and rail-to-rail output swing that maximizes dynamic range on low-voltage rails. The CMOS input provides high input impedance and low bias current, important for high-impedance sensor interfaces. Architecturally, the OPAx375 family (OPA375 single, OPA2375 dual, OPA4375 quad) uses a CMOS input stage with a rail-to-rail output stage (RRO). This combination delivers wide bandwidth and low noise simultaneously, a pairing usually traded off against each other, and the low offset of 500 uV maximum keeps DC accuracy acceptable in precision signal chains without system-level trimming. Typical applications include sensor signal conditioning for pressure and temperature transducers, active filter stages ahead of precision ADCs, and transimpedance or buffer amplification in portable and battery-powered instrumentation where the 5.5 V maximum supply and small TSOT-23-8 footprint save board area. Design consideration: the OPA2375 provides rail-to-rail output only (RRO), not rail-to-rail input. Keep the common-mode input range within the specified limits, typically about 1.5 V from either rail, or verify linearity in your operating region before committing the layout. This page synthesizes distributor pricing from DigiKey, Mouser, LCSC and Octopart, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet, giving engineers a single citable reference for the OPA2375IDDFR.

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OPA2375IDGKR

OPA2375IDGKR - Dual 10MHz Rail-to-Rail Op Amp | TI

The Texas Instruments OPA2375IDGKR is a dual-channel, 10 MHz CMOS operational amplifier with rail-to-rail output (RRO), 4.6 nV/√Hz low broadband noise, and 500 µV maximum input offset voltage, housed in an 8-pin VSSOP (DGK) surface-mount package. An operational amplifier (op amp) is a high-gain voltage amplifier with differential inputs that, when combined with external feedback networks, performs amplification, filtering, buffering, and signal conditioning. Within the signal-chain hierarchy, the op amp sits between sensors and data converters: it is a core analog building block of the amplifiers and buffer amplifiers category, and the OPA2375 belongs to the OPAx375 general-purpose CMOS family that also includes the single OPA375 and quad OPA4375. Key differentiating features include the extremely low 4.6 nV/√Hz broadband noise figure, a wide 10 MHz gain-bandwidth, a fast 4.6 V/µs slew rate (per distributor package data), and rail-to-rail output swing that maximizes dynamic range in low-voltage systems. The maximum 500 µV offset and only 3 pA input bias current make the device suitable for high-impedance sources. Technically, the OPA2375 uses a CMOS input architecture with a rail-to-rail output stage, which allows output swings to within millivolts of either supply rail. This CMOS design delivers low noise without the input bias currents of bipolar alternatives, and the low-voltage 5.5 V maximum supply rating aligns the amplifier directly with 3.3 V and 5 V single-supply systems, ADC drivers, and portable designs. Typical applications include sensor signal conditioning and transimpedance amplification for photodiodes (enabled by the 3 pA bias current), active anti-alias filters ahead of SAR and delta-sigma ADCs, and general-purpose precision amplification in industrial and portable instrumentation. The dual channel integration saves board area versus two single amplifiers. When designing, account for supply decoupling with 0.1 µF ceramics close to each V+ pin, and verify that closed-loop gain and load capacitance keep the amplifier comfortably within its 10 MHz bandwidth and phase-margin limits for stability. This page synthesizes distributor pricing, drop-in alternatives, design notes, and pin-to-pin replacement guidance not found in the manufacturer datasheet alone.

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OPA2375IDSGR

OPA2375IDSGR - 10MHz Dual CMOS Op Amp RRO | Texas Instruments

The Texas Instruments OPA2375IDSGR is a dual-channel, 10-MHz, low-noise (3.5 nV/sqrtHz broadband, 4.6 nV/sqrtHz per the TI product page) CMOS operational amplifier with rail-to-rail output (RRO), supplied in an 8-pin WSON (DSG) 2x2 mm surface-mount package. It operates from a supply up to 5.5 V and draws only 990 uA per channel. An operational amplifier (op amp) is a high-gain differential voltage amplifier that forms the core building block of analog signal conditioning. Within the power-management and signal-chain hierarchy, op amps sit in the amplifier IC category alongside instrumentation amplifiers and buffer amplifiers, conditioning sensor outputs, filtering signals, and driving ADC inputs. The OPA2375 belongs to the OPAx375 family, which includes the single OPA375, dual OPA2375, and quad OPA4375. Key differentiating features include an extremely low broadband noise figure of 3.5 nV/sqrtHz, a maximum input offset voltage of only 500 uV, very low distortion (THD+N of 0.00015%), a 10 MHz gain bandwidth, and unity-gain stability. These combine to deliver precision performance rarely found in general-purpose CMOS op amps at this quiescent current level. Technically, the OPA2375 uses a CMOS input architecture that achieves near-zero input bias current together with low 1/f noise, while the rail-to-rail output stage maximizes dynamic range on low single-supply rails such as 3.3 V and 5 V. The output swing within millivolts of either rail allows the full ADC input range to be exploited in compact battery-powered designs. Typical applications include sensor signal conditioning for battery-powered devices, active filter and transimpedance stages in portable medical instruments, and driving precision successive-approximation ADCs such as the ADS131M08 in industrial data-acquisition systems. Design consideration: the 2x2 mm WSON (DSG) package has a small thermal pad and fine 0.5 mm pitch, so inspect the PCB land pattern carefully and use a ground plane for heat spreading and stable high-frequency performance. Input and output RC filtering is recommended when driving heavily capacitive loads. This page synthesizes distributor availability, drop-in alternative analysis, pinout details, and practical design notes not consolidated in the manufacturer datasheet, with pricing as of 2026-09-03.

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OPA2375IPWR

OPA2375IPWR - 10MHz 4.6nV/√Hz Dual CMOS Op Amp | TI

The Texas Instruments OPA2375IPWR is a dual-channel general-purpose CMOS operational amplifier delivering a 10 MHz gain-bandwidth product, an ultra-low 4.6 nV/√Hz broadband noise figure, and a maximum 500 μV input offset voltage, housed in an 8-pin TSSOP (PW) surface-mount package with rail-to-rail output (RRO). An operational amplifier (op amp) is a high-gain differential-input voltage amplifier that forms the fundamental building block of analog signal conditioning. Within the voltage regulator-to-amplifier-to-precision-analog hierarchy, the op amp sits between sensors and data converters, conditioning weak signals before digitization. The OPA2375 belongs to the OPAx375 precision CMOS op amp family, which includes the single-channel OPA375 and quad-channel OPA4375 siblings, all sharing the same core amplifier design and RRO output stage. Key differentiating features include the combination of low noise and wide bandwidth rarely found in general-purpose CMOS op amps, a 500 μV maximum offset voltage enabling precision DC-accurate designs, and rail-to-rail output swing that maximizes dynamic range in low-voltage 5 V and 3.3 V systems. The low-cost CMOS process yields very low input bias currents, suitable for high-impedance sensor front ends. Architecturally, the OPAx375 family uses a CMOS input stage with a precision-trimmed offset and an output stage that swings to within millivolts of the rails under light load. The 10 MHz bandwidth supports closed-loop gain configurations above 10 V/V while preserving adequate loop gain for low-distortion operation at audio and intermediate frequencies. Supply operation up to 5.5 V suits single-supply portable and industrial logic-level systems. Typical applications include transducer and photodiode sensor amplifiers, active filter networks, precision current sensing, and buffered analog outputs in industrial automation, medical instrumentation, and battery-powered portable devices. The dual-channel integration saves board area in multi-stage filter and TIA designs. Design consideration: keep source impedance low to exploit the 4.6 nV/√Hz noise figure, use 0.1 μF decoupling per supply pin, and add an isolation resistor if driving capacitive loads above a few hundred pF in unity gain. This page synthesizes distributor availability data, same-family drop-in alternatives, and practical design notes not found in the manufacturer datasheet. Pricing shown as of 2026-09-03.

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OPA2375SIRUGR

OPA2375SIRUGR - Dual 10MHz RRO CMOS Op Amp | TI

The Texas Instruments OPA2375SIRUGR is a dual-channel, 5.5 V, 10 MHz low-noise CMOS operational amplifier with rail-to-rail output (RRO), a maximum offset voltage of 500 uV, and a noise density of 4.6 nV per root hertz, housed in a 10-pin X2QFN (RU) package measuring only 1.5 mm x 2.0 mm. An operational amplifier is an analog building block that amplifies the voltage difference between its two inputs and is foundational to every signal chain, sitting in the hierarchy of amplifiers -> op amps -> precision amplifiers -> analog integrated circuits. Dual op amps such as the OPA2375 integrate two matched amplifier circuits in one package, halving board area and improving channel-to-channel matching versus discrete solutions. Key differentiating features include the 10 MHz gain-bandwidth combined with a 4.6 V/us slew rate, which supports demanding general-purpose precision applications; the extremely low 500 uV maximum input offset voltage, which preserves DC accuracy without system-level calibration; and the rail-to-rail output stage, which maximizes dynamic range on low-voltage 2.2 V to 5.5 V supplies. The CMOS input delivers low bias current and low broadband noise, a combination attractive for sensor front ends and active filters. Architecturally, the OPAx375 family uses a general-purpose CMOS process with a rail-to-rail output (RRO) stage rather than a full rail-to-rail input. The family includes the single OPA375, dual OPA2375, and quad OPA4375, so designs can scale channel count while keeping identical electrical characteristics - useful when migrating from a prototype dual to a production quad. Typical applications include active filter stages in data acquisition systems, transimpedance and buffer amplification for precision sensors, and signal conditioning ahead of ADCs such as the ADS131M08 delta-sigma converters. The 10 MHz bandwidth supports audio-range and sub-MHz instrumentation circuits with margin. A key design consideration: the output swings rail-to-rail but the input common-mode range does not, so verify input headroom in low-supply designs. X2QFN leadframes also need a well-defined PCB land pattern for reliable soldering. This page synthesizes distributor pricing, alternative cross-reference guidance, application pairings, and design notes not consolidated in the manufacturer datasheet.

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OPA241PA

OPA241PA - 5V Micropower Rail-to-Rail Op Amp | Texas Instruments

The Texas Instruments OPA241PA is a single, 5 V, micropower operational amplifier with rail-to-rail output swing, low offset voltage, high common-mode rejection, and high open-loop gain, housed in an 8-pin PDIP package. The OPA241 family is optimized for battery-powered and portable applications, where low supply current and signal-chain flexibility are important design priorities. Its low power consumption of approximately 25 µA makes it suitable for sensor interfaces, portable instrumentation, low-power signal conditioning, and battery-operated measurement systems. An operational amplifier, or op amp, is an analog integrated circuit that amplifies the voltage difference between its two inputs while using negative feedback to set a stable closed-loop gain. The OPA241 belongs to the operational-amplifier hierarchy within analog ICs and signal-conditioning systems. Its single-supply, rail-to-rail output architecture is particularly useful when the signal must be processed close to the available supply rails in low-voltage portable equipment. Key features include approximately 25 µA quiescent current, low offset voltage, rail-to-rail output swing, high common-mode rejection ratio, and high open-loop gain. The manufacturer describes the OPAx241 series as being optimized for low-power operation and designed specifically for battery-powered, portable applications. Rail-to-rail output swing helps maximize usable signal range in 5 V systems, while low quiescent current reduces the continuous load imposed on a battery or energy-harvesting source. OPA241PA is the single-amplifier version in the OPAx241 family. Related OPA2241 and OPA4241 devices provide dual and quad channels, respectively, while the OPA251 family is optimized for ±15 V supplies. The OPA241PA is packaged for through-hole PCB installation in an 8-pin PDIP package. Its electrical behavior should be evaluated against the complete signal chain, including input bias current, common-mode range, output swing limits, slew rate, noise, and stability with the selected feedback network. Typical applications include low-power sensor conditioning, portable battery monitoring, current sensing, medical monitoring, industrial instrumentation, and low-voltage analog signal processing. The amplifier can buffer weak sensor outputs, amplify small differential signals, or serve as the active element in filters and transimpedance circuits. Designers should use the manufacturer datasheet when selecting external resistors, capacitors, and compensation values. A key design consideration is power headroom. Because the OPA241PA is optimized for a 5 V single supply, verify the input, output, and common-mode voltage limits for the exact production variant and operating temperature. Place bypass capacitance close to the supply pins, keep sensitive input routing short, and confirm stability with the intended gain and load. This page combines the device specifications, sourcing information, application guidance, and replacement considerations into a practical engineering reference.

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OPA241UA

OPA241UA - 25µA Micro-Power Op Amp | Texas Instruments

The Texas Instruments OPA241UA is a single, 5 V single-supply, micro-power operational amplifier with 25 µA typical quiescent current, 35 kHz gain-bandwidth product, and 0.01 V/µs slew rate in an 8-pin SOIC package. Designed for portable and battery-powered equipment, it combines low power consumption with rail-to-rail output swing, low offset voltage, high common-mode rejection, and high open-loop gain. An operational amplifier is a voltage-feedback analog building block that amplifies the difference between two input voltages while presenting high input impedance and low output impedance. The OPA241 belongs to the low-dropout, micropower operational-amplifier hierarchy within analog and mixed-signal semiconductors. Its low operating current makes it suitable for sensor interfaces, portable instrumentation, battery monitoring, and low-duty-cycle control systems where continuous amplifier power would dominate the system budget. The principal operating characteristics are a 25 µA supply current, 35 kHz gain-bandwidth product, 0.01 V/µs slew rate, and operation from a single 5 V supply. The device also provides rail-to-rail output swing, which increases usable output range on low-voltage rails. Low offset voltage supports accurate amplification of small sensor signals, while the high common-mode rejection ratio reduces sensitivity to supply and ground-disturbance signals. A unity-gain bandwidth of 35 kHz makes the amplifier appropriate for low-frequency signal conditioning rather than high-speed waveform processing. OPA241UA is a single-amplifier implementation in the broader OPAx241 family, alongside the OPA2241 and OPA4241 dual and quad versions. The family targets portable applications where low power consumption, common-mode range, and output swing are more important than wideband performance. Single-supply operation also simplifies battery-powered design, while the small SOIC package supports conventional surface-mount assembly. Typical uses include low-power sensor amplification, portable measurement equipment, battery-current monitoring, industrial signal conditioning, and low-leakage sensing interfaces. In these applications, the amplifier can sit close to a sensor and condition its output before conversion or transmission. The 35 kHz bandwidth is adequate for slow physiological, temperature, pressure, and position signals, but it is not intended for high-speed communications, pulse shaping, or precision audio workloads. For a new design, verify the signal bandwidth, output load, common-mode range, and stability requirements against the manufacturer datasheet. Place the bypass capacitor close to the supply pins and avoid capacitive loading that can reduce phase margin. The low-current advantage should also be checked against the complete analog signal chain, since additional amplifiers, converters, and protection devices can consume more power than the OPA241UA itself. This product page consolidates the manufacturer specifications, commercial sourcing guidance, package details, cross-reference alternatives, and application-focused engineering notes. It supports faster part selection by connecting the OPA241UA electrical limits with practical low-power circuit requirements rather than repeating only the basic ordering information.

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OPA2652U

OPA2652U - 200MHz Dual Op Amp | Texas Instruments

The Texas Instruments OPA2652U is a dual, low-cost, wideband voltage-feedback operational amplifier with a 200 MHz gain-bandwidth product, 5.5 mA per channel of quiescent current, and operation from ±5 V or a single +6 V to +12 V supply. The device provides 140 mA of output current and is packaged in an 8-pin SOIC for cost-sensitive signal-chain designs. A voltage-feedback operational amplifier is a differential amplifier whose closed-loop behavior is set primarily by external feedback components. In the signal-chain hierarchy, the OPA2652U belongs to the operational-amplifier and analog-amplifier categories, where it provides high-bandwidth gain and signal conditioning between sensors, converters, filters, data converters, and output stages. Its differential input accepts bipolar signals, while its output stage must remain within the selected supply rails. The principal features are a 200 MHz gain-bandwidth product, low 5.5 mA per-channel quiescent current, support for dual ±5 V supplies, support for single +6 V to +12 V operation, and 140 mA output-current capability. These characteristics suit applications that require more bandwidth than conventional low-cost amplifiers while retaining lower power consumption than many high-speed alternatives. The OPA2652U uses a classical differential-input, voltage-feedback architecture. Its wide open-loop bandwidth allows it to maintain useful closed-loop gain over a wide frequency range, while the selected feedback network determines the actual gain and bandwidth. When used with resistive feedback, the circuit designer must account for parasitic capacitance, output loading, and the input/output voltage limits imposed by the supply configuration. Typical uses include low-cost video amplification, communication-interface signal conditioning, analog measurement chains, active filtering, and general-purpose high-frequency amplification. The dual configuration can process two independent channels or implement one differential stage. Single-supply operation is useful in compact +6 V to +12 V systems, whereas ±5 V operation simplifies centered bipolar signal paths. For reliable layout, keep feedback resistors close to the amplifier pins, use short ground returns, and place input and output decoupling capacitors near the device. Avoid long PCB traces that can add parasitic feedback and reduce stability margin. Account for output-current demand and the DC power dissipated by the amplifier when operating across a wide voltage span. This product page combines manufacturer specifications, practical design guidance, package details, and a focused comparison of same-brand drop-in candidates. It also identifies the electrical limits that should be checked before substituting a device into an existing 8-pin SOIC footprint.

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製品 (39,000+)

OPA2227P - Dual Precision Low-Noise Op Amp | Texas Instruments

OPA2237EA/2K5 - Dual 1.5MHz Op Amp, 750µV Offset | TI

OPA2277P - 10µV Precision Dual Op Amp | Texas Instruments

OPA2277UA - 10µV Dual Precision Op Amp | Texas Instruments

OPA227P - 8MHz, 36V Low-Noise Op Amp | Texas Instruments

OPA227PA - Low-Noise Precision Op Amp | Texas Instruments

OPA227U - High Precision Low Noise Op Amp | Texas Instruments

OPA228P - 33MHz, 3nV/√Hz Precision Amplifier | TI

OPA228PA - 33MHz Low-Noise Precision Op Amp | Texas Instruments

OPA228U - Precision Low-Noise Op Amp | Texas Instruments

OPA2335AIDR - Dual Zero-Drift 5uV 2MHz Op Amp | TI

OPA234E - 36V Precision Operational Amplifier | Texas Instruments

OPA234P - Low-Power Precision Dual Op Amp | Texas Instruments

OPA234U - Dual 350kHz Precision Op Amp | Texas Instruments

OPA2350UA/2K5 - Dual 38MHz Rail-to-Rail Op Amp | Texas Instruments

OPA2375 - Dual 10MHz Low-Noise CMOS Op Amp | Texas Instruments

OPA2375IDDFR - Dual 10MHz 4.6nV Op Amp, TSOT-23-8 | TI

OPA2375IDGKR - Dual 10MHz Rail-to-Rail Op Amp | TI

OPA2375IDSGR - 10MHz Dual CMOS Op Amp RRO | Texas Instruments

OPA2375IPWR - 10MHz 4.6nV/√Hz Dual CMOS Op Amp | TI

OPA2375SIRUGR - Dual 10MHz RRO CMOS Op Amp | TI

OPA241PA - 5V Micropower Rail-to-Rail Op Amp | Texas Instruments

OPA241UA - 25µA Micro-Power Op Amp | Texas Instruments

OPA2652U - 200MHz Dual Op Amp | Texas Instruments