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TPS3700DDCT - 18V Window Comparator | Texas Instruments
The Texas Instruments TPS3700DDCT is an 18 V window voltage comparator with a 400 mV internal reference, two open-drain outputs, and a 6-pin SOT-23-THIN package. It operates from 1.8 V to 18 V and monitors one rail for overvoltage and undervoltage conditions. Its adjustable thresholds can extend detection down to 400 mV, while the open-drain outputs are rated to 18 V. A window comparator is a voltage supervisor that combines two threshold comparisons around a monitored signal. It belongs to the comparator and power-management IC hierarchy, where it is used to identify when a supply enters an allowed operating window or exits it because of an excessive low or high condition. The TPS3700 can therefore operate as a combined window detector or as two independent voltage monitors. Key features include a wide 1.8 V to 18 V supply range, threshold accuracy of -1.0% over temperature, 0.25% typical threshold accuracy, and 5.5 uA typical quiescent current. The two open-drain outputs can be pulled up to an external voltage up to 18 V. Built-in hysteresis helps reject brief glitches and maintain stable outputs, while external resistors set the monitored voltage range. The TPS3700DDCT uses two high-accuracy comparators and an internal 400 mV reference. One comparator monitors the lower threshold and the other monitors the upper threshold, allowing detection of undervoltage and overvoltage separately. The monitored voltage is scaled with external resistors, making the device suitable for systems where the rail is higher than the internal reference. Typical applications include industrial 24 V input-bus monitoring, battery-pack protection, DC power-supply fault detection, load-switch sequencing, and embedded systems that require a hardware voltage supervisor. Its low quiescent current is useful in battery-powered equipment, while the 18 V operating range supports higher-voltage industrial rails. When designing the circuit, choose resistor values to keep the sense-node voltage within the comparator input limits and use pull-up resistors appropriate for the open-drain outputs. Confirm the logic polarity of both outputs in the system controller because a fault indication can require inversion. Review the manufacturer datasheet for threshold, hysteresis, input-current, and absolute-maximum details before finalizing the PCB layout.
TPS3700DSET - 18V Window Voltage Detector | Texas Instruments
The Texas Instruments TPS3700DSET is a high-voltage (18 V) window voltage detector for overvoltage and undervoltage monitoring, featuring two high-accuracy comparators with an internal 400 mV reference and two open-drain outputs rated to 18 V. It is offered in a 6-pin WSON package measuring 1.5 mm x 1.5 mm with a propagation delay of 29 us (maximum). A window voltage detector is a type of voltage supervisor or comparator circuit that monitors an input rail and asserts an alert whenever the rail falls outside a programmer-defined upper and lower threshold. It belongs to the broader family of comparators (amplifier ICs) which sit within power management ICs, and is commonly used as a safety watchdog in microprocessor and DSP power systems. Compared to single-threshold comparators, the window detector adds redundancy by failing-fast on both excursions, which is critical for ASIC rails, battery stacks, and industrial 24 V systems. Key features include a wide supply voltage range of 1.8 V to 18 V, threshold accuracy of 1.0% over temperature (0.25% typical), a low quiescent current of 5.5 uA typical, and built-in hysteresis on both comparators to reject brief glitches without false triggering. The monitored thresholds are set via external resistor dividers referenced to the internal 400 mV band-gap, and the two open-drain outputs can be pulled up to as high as 18 V for direct interface to logic rails or opto-isolators. The TPS3700DSET uses a CMOS architecture with a precision bandgap reference and twin comparators, giving it a clean offset and temperature-stable trip point across the -40C to +125C junction temperature range. The wide supply tolerance also lets it operate directly from 12 V and 15 V industrial rails without pre-regulation. Typical applications include overvoltage and undervoltage monitoring on 12 V industrial rails, battery-pack protection in multi-cell stacks, system reset generation for DSPs and microcontrollers, fault detection in PLC and motor-drive systems, and redundant safety supervision in medical and automotive subsystems. When designing with this device, choose the resistor divider ratio so the monitored voltage equals 400 mV at the desired trip point; hysteresis is fixed by internal design, but selection of the resistor network affects overall accuracy and input bias current error. This page consolidates verified distributor pricing, drop-in alternatives, and practical design notes for engineers evaluating the TPS3700DSET as a window supervisor.
TPS4141-Q1 - 1200V Configurable Divider | Texas Instruments
The Texas Instruments TPS4141-Q1 is a high-voltage precision matched resistor divider with an integrated programmable-gain amplifier (PGA), designed for accurate high-voltage measurement in automotive and industrial applications. The device supports input voltages up to 1200V and provides four configurable divider ratios via the DIV0 and DIV1 inputs. It is available in a 10.30mm × 10.30mm SOIC-11 (DWQ) package, optimized for space-constrained automotive systems. A high-voltage precision resistor divider is a specialized analog front-end IC that scales high-voltage inputs down to a safe range for downstream ADC or microcontroller measurement. It combines matched precision resistors with a PGA to maintain accuracy across temperature and voltage extremes, eliminating the need for discrete resistor networks and trimming. This architecture reduces board area and improves measurement reliability in high-voltage environments. The TPS4141-Q1 integrates a high-voltage switch that connects or disconnects the high-voltage sense pin, providing uni-directional current blocking when disconnected. The programmable-gain amplifier supports four divider ratios using DIV0 and DIV1, enabling flexible measurement scaling for different voltage ranges. External precision reference voltage can be supplied from REF to HVGND for bi-directional voltage measurement, and switching between uni-directional and bi-directional sensing during operation is possible. The device is AEC-Q100 qualified for automotive applications, ensuring robust performance over a wide temperature range. Its high-voltage capability and integrated switch make it suitable for battery management systems, traction inverters, and industrial motor drives where precise voltage monitoring is critical. The integrated PGA and matched resistors provide high accuracy, reducing system calibration overhead. Typical applications include electric vehicle battery pack voltage monitoring, solar inverter DC bus sensing, and industrial 24V/48V system voltage measurement. The high-voltage switch allows the sense line to be disconnected for safety or power saving, while the divider ratios allow the same device to serve multiple voltage ranges. Designers should ensure proper PCB clearance and creepage distances for 1200V operation, and use the external REF for bi-directional measurements when needed.
TS321ID - Single 30 V 800 kHz Op Amp | Texas Instruments
Texas Instruments TS321ID is a single bipolar operational amplifier rated for 30 V operation, an 800 kHz gain-bandwidth product, and an 8-pin SOIC package. It is intended for cost-sensitive applications where space savings matter, making it a compact general-purpose amplifier for industrial, instrumentation, and signal-conditioning systems. An operational amplifier is an analog integrated circuit that uses high open-loop gain to amplify the difference between two input voltages. The TS321 belongs to the broader hierarchy of operational amplifier, analog amplifier, signal-conditioning IC, and semiconductor. Its basic amplifier functions include voltage amplification, buffering, filtering, summing, and feedback-based control, provided the external feedback network and operating limits are respected. The verified product information identifies a single amplifier circuit, a 30 V maximum operating framework, 800 kHz bandwidth, general-purpose classification, and an 8-pin SOIC package. The bipolar architecture and low-power positioning suit cost-sensitive designs, while the SOIC footprint supports conventional surface-mount assembly. Exact offset, bias-current, noise, slew-rate, common-mode, and output-swing values require confirmation in the manufacturer datasheet before final circuit sign-off. TS321ID is useful as a general-purpose amplifier in low- and moderate-bandwidth analog paths. Its verified 800 kHz bandwidth makes it relevant to signal conditioning where the required closed-loop bandwidth is well below that level. The single-amplifier configuration can simplify designs that need one amplifier rather than a dual package, particularly in sensor interfaces, control loops, audio preamplification, and industrial measurement circuits. The principal design consideration is preserving signal headroom and stability. An 8-pin SOIC package requires adequate PCB spacing, controlled grounding, and decoupling close to the power pins. Feedback resistors, compensation components, and input or output loading determine the actual usable bandwidth and must be evaluated against the application. Because verified operating details beyond the supplied values are incomplete, engineers should consult the TS321 manufacturer datasheet before choosing component values. This page combines verified manufacturer and distributor information, structured technical context, sourcing guidance, and engineering notes. It also clearly identifies unavailable electrical parameters rather than presenting guessed values, helping engineers move from part selection to a validated TS321ID design with fewer sourcing and specification ambiguities.
TS512ID - 3 MHz Precision Dual Op Amp | STMicroelectronics
The STMicroelectronics TS512ID is a precision dual operational amplifier with two independent amplifiers, a 3 MHz gain-bandwidth product, and a maximum input offset voltage of 500 µV. The device is supplied in an 8-pin SOIC package and operates from single or dual power supplies, making it suitable for signal-conditioning and instrumentation applications requiring two amplifiers in one package. An operational amplifier is an analog integrated circuit that uses very high open-loop gain to amplify the difference between its inverting and non-inverting inputs. Precision operational amplifiers are a subtype of voltage-feedback amplifiers characterized by low offset voltage, low distortion, low noise, and stable operation with feedback. The dual-amplifier configuration places two amplifiers in one package, reducing board area and simplifying paired signal-processing circuits. The TS512 family provides a 3 MHz gain-bandwidth product, low input offset voltage of 500 µV maximum, low power consumption, short-circuit protection, low distortion, low noise, high channel separation, and internal ESD protection. According to the STMicroelectronics family datasheet, the minimum slew rate is 0.8 V/µs for TS512 and TS512A. The related TS512B has a guaranteed higher minimum slew rate of 1.072 V/µs. The TS512 family uses internal frequency and phase compensation to support stable operation in voltage-follower configurations. This is useful in application circuits where one amplifier buffers a source and the other performs gain or filtering. Its dual supply range is ±1.5 V to ±15 V, while single-supply operation is supported from 3 V to 30 V, allowing use in both conventional analog circuits and higher-voltage industrial interfaces. Typical uses include sensor-signal conditioning, low-level instrumentation, active filtering, audio preamplification, and general analog signal processing. The dual channel can implement matched buffer, gain, summing, or differential stages. Because offset voltage influences accuracy near the zero-voltage operating point, input-source resistance and bias-current compensation should be evaluated carefully. PCB layout should keep input and feedback paths short and place input compensation or filtering components close to the relevant amplifier pins. Both channels should share stable supply decoupling, while avoiding current paths through analog ground that carry output or digital return current. The SOIC package is suitable for conventional surface-mount assembly and conventional thermal design at low to moderate output current. This page consolidates the verified manufacturer-family information, distributor listing details, package data, sourcing information, and engineering guidance for TS512ID. It distinguishes documented TS512-family characteristics from unavailable detailed electrical limits and clearly identifies uncertainty where the supplied source data does not provide a defensible value.
TS512IN - 3MHz Dual Precision Op Amp | STMicroelectronics
The STMicroelectronics TS512IN is a precision dual operational amplifier with a 3 MHz gain-bandwidth product, 1.5 V/µs slew rate, and a maximum input offset voltage of 500 µV, supplied in an 8-pin Mini DIP package. It is designed for general-purpose instrumentation, analog signal conditioning, and dual-channel measurement applications where two amplifiers share the same package. A dual operational amplifier is an analog integrated circuit containing two independent amplifier channels. Operational amplifiers are voltage amplifiers whose behavior depends mainly on external feedback components. The TS512IN combines frequency-compensated amplifiers for stable voltage-follower operation, low distortion, low noise, short-circuit protection, and internal ESD protection. The 3 MHz gain-bandwidth product supports useful closed-loop bandwidth well below 3 MHz at higher noise gains, while the 1.5 V/µs slew rate improves response to larger transient signals. A maximum offset voltage of 500 µV helps reduce DC error in precision feedback networks. Its dual-channel organization reduces package count and simplifies PCB routing when two amplified signals must be processed under shared supply conditions. The device operates from single 6 V to dual ±15 V supplies, matching conventional analog and industrial voltage ranges. Internal phase compensation allows voltage-follower use without an external compensation network. Short-circuit protection limits the effects of output overload, although sustained shorts still require appropriate supply and thermal checks. Internal ESD protection improves handling robustness without eliminating the need for normal assembly precautions. TS512IN applications include sensor-interface amplification, low-frequency instrumentation, dual audio-channel control, buffering, active filtering, and general analog signal conditioning. Designers should place input and feedback components close to their associated pins, observe the specified common-mode and output-current limits, and avoid excessive loading near the bandwidth and slew-rate limits. This product page combines verified manufacturer-linked specifications, source URLs, package information, application guidance, and honest comparison limitations. It distinguishes confirmed TS512IN attributes from parameters that require verification before a PCB or production cross-reference is approved.
TS514ID - High-Speed Precision Quad Op Amp | STMicroelectronics
STMicroelectronics TS514ID is a high-speed, precision quad operational amplifier with four amplifier circuits, internally compensated frequency and phase response, short-circuit protection, internal ESD protection, and a 14-pin SOIC package. The verified product data identifies a maximum offset voltage of 500 uV and highlights a high gain-bandwidth product, low distortion, low noise, low power consumption, and high channel separation. The TS514ID is intended for instrumentation and general-purpose precision signal-processing designs requiring four amplifiers in one package. An operational amplifier, commonly called an op amp, is a voltage-controlled differential amplifier with very high open-loop gain. Its external feedback network determines the closed-loop behavior. The TS514 belongs to the operational-amplifier hierarchy, which includes instrumentation amplifiers, buffer amplifiers, comparators, and general-purpose voltage amplifiers. Internal phase compensation allows the TS514 to operate as a voltage follower despite its high gain-bandwidth product, reducing the external compensation effort required in many designs. The quad architecture integrates four amplifier channels into one 14-pin SOIC-14 package. Verified manufacturer-related product descriptions identify low offset voltage, low power consumption, short-circuit protection, low distortion, low noise, high gain-bandwidth product, high channel separation, and internal ESD protection. These characteristics make the device applicable to precision buffering, signal conditioning, instrumentation, industrial measurement, and general analog signal-processing systems. Each amplifier requires stable supply decoupling and careful handling of output-current limits. The TS514 uses internal frequency and phase compensation. This architecture is particularly useful in follower and precision-gain configurations because the compensation is already incorporated into the device. Its high speed does not eliminate the need for short feedback traces, adequate grounding, and supply bypassing. Designers should avoid long output routing and place input, output, and ground returns so that parasitic capacitance does not degrade stability or transient response. Typical uses include four-channel sensor conditioning, low-level signal amplification, active filtering, voltage buffering, and instrumentation chains requiring several matched amplifier functions. Industrial control and test equipment can also use the quad package to reduce board area compared with four discrete single-amplifier packages. Where precision offset and noise dominate, the complete manufacturer datasheet should be consulted for test conditions and application-specific limits. The principal design trade-off is speed versus power and stability margin. Although the TS514 supports high-speed operation and voltage-follower use, board layout, capacitive loading, output-current demand, and supply bypassing remain critical. A short, low-inductance layout with local decoupling is recommended. Application notes and the manufacturer datasheet should control the final compensation, grounding, and thermal implementation. This product page combines verified distributor and datasheet information with practical guidance on precision analog design, package reuse, selection criteria, and drop-in alternatives. It also distinguishes confirmed TS514-family candidates from cross-package or merely functional substitutes so engineers can avoid redesigns that require PCB changes.
TS514IN - Quad Precision Op Amp | STMicroelectronics | DIP-14
The STMicroelectronics TS514IN is a high-performance quad operational amplifier with internal frequency and phase compensation, supplied in a 14-DIP package. The device contains four amplifier channels in one package and is designed for general-purpose instrumentation, signal-conditioning, and analog control applications where stable voltage-follower operation is useful. The verified manufacturer description identifies low offset voltage, low power consumption, short-circuit protection, low distortion, low noise, high gain-bandwidth product, high channel separation, and internal ESD protection as key features. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its inverting and non-inverting inputs. A quad operational amplifier extends this architecture to four independent channels in one package, reducing board area and simplifying multi-channel designs. The TS514IN belongs to the broader operational-amplifier, analog-amplifier, signal-conditioning, and semiconductor hierarchy. The TS514IN's compensated architecture is intended to support stable operation as a voltage follower despite its high gain-bandwidth product. Internal compensation simplifies circuit design when unity-gain stability is required, while short-circuit protection improves robustness in conventional analog signal paths. Low offset voltage supports precision-oriented instrumentation, and low noise and low distortion are useful for audio and measurement front ends. Four channels make the device suitable for sensor signal conditioning, current-voltage conversion, active filtering, waveform shaping, instrumentation amplifiers, feedback networks, and general analog control loops. The 14-DIP package is appropriate for through-hole prototyping, educational systems, laboratory instruments, and industrial assemblies where a dual-inline footprint is preferred over a fine-pitch surface-mount package. The principal design consideration is to verify the supply-voltage limits, input common-mode range, output swing, input bias current, noise density, and load-current behavior against the manufacturer datasheet before finalizing a new design. Decoupling capacitors should be placed close to the supply pins, and unused amplifier inputs should be tied to a defined voltage within the input common-mode range. This page consolidates the verified manufacturer and distributor information, package details, application guidance, technical limitations, and drop-in replacement analysis. It also identifies parameters that require confirmation from the complete TS514 datasheet rather than substituting unverified assumptions.
TS522ID - Dual 15MHz Low-Noise Op Amp | STMicroelectronics
The STMicroelectronics TS522ID is a monolithic dual operational amplifier optimized for precision audio signal processing. It provides two amplifiers, a 15 MHz gain-bandwidth product, a 7 V/µs slew rate, low-voltage noise of 4.5 nV/√Hz, and a maximum input offset voltage of 850 µV in an 8-pin SOIC package. The device operates from 5 V to 30 V over an industrial temperature range of -40°C to +125°C. An operational amplifier is a voltage-controlled differential amplifier that uses feedback to amplify the difference between two input voltages. The dual configuration places two amplifiers in one package, allowing stereo audio, balanced signal paths, active filtering, or independent measurement channels to share a common footprint. Within the broader semiconductor hierarchy, the TS522 belongs to the operational-amplifier family, the analog amplifier category, and the signal-conditioning IC hierarchy. The TS522 combines low input offset, low voltage noise, and high dynamic performance for audio-oriented designs. Its 850 µV maximum input offset voltage supports accurate signal amplification, while the 4.5 nV/√Hz voltage-noise density is particularly relevant when processing low-level microphone, musical-instrument, or line-level signals. A 15 MHz gain-bandwidth product provides useful bandwidth for audio and general-purpose precision applications, and the 7 V/µs slew rate improves large-signal response. Internally, each amplifier is configured around high-gain stages with internal ESD protection. The manufacturer datasheet reports low distortion of 0.002%, macromodel inclusion, and excellent frequency stability. These characteristics make the TS522 suitable for precision audio signal chains where low noise, low distortion, and predictable frequency response matter more than very low power consumption. Typical uses include stereo audio preamplification, active crossover filters, mixer input stages, microphone preamplifiers, audio buffer circuits, and low-level sensor-conditioning channels. Two amplifiers in the same 8-pin SOIC package can reduce board area in stereo designs, while the industrial temperature range supports industrial control, communications, and instrumentation equipment. Designers should verify the required supply headroom, input common-mode range, output swing, noise gain, and stability for the selected feedback network. Decoupling capacitors should be placed close to the supply pins, and sensitive audio inputs should use short traces with suitable grounding to minimize parasitic pickup. A SPICE macromodel is available for circuit simulation, but board-level stability and distortion should still be verified with real components. This page consolidates the verified TS522ID operating characteristics, sourcing links, application guidance, design cautions, and replacement information. It also distinguishes confirmed technical facts from parameters that were not present in the supplied source data, helping engineers make a defensible design decision without treating unverified values as guaranteed specifications.
TS7221BILT - Single BiCMOS R2R uPower Comparator | STMicroelectronics
The STMicroelectronics TS7221BILT is a single BiCMOS rail-to-rail micropower comparator housed in a 5-pin SOT-23 (SOT-23-5) package, designed for space- and weight-critical designs. It is fully specified at 2.7 V, 5 V and 10 V operation, drawing only a few microamperes of supply current while delivering rail-to-rail input performance and an open-drain output stage. The 'B' grade denotes a tighter input offset voltage grade versus the 'A' suffix variant, while the 'I' temperature suffix indicates the -40C to +85C industrial operating range and 'LT' indicates SOT-23-5 tape-and-reel packaging. A comparator is an analog building block that compares two input voltages and produces a logic-level output indicating which is larger. Micropower comparators like the TS7221 occupy a position in the power-management/analog signal-chain hierarchy below op-amps but above simple logic gates, and are favoured for always-on battery-powered designs where quiescent current dominates total energy consumption. Within ST's broader comparator family, the TS7221 sits alongside the TS7222 (dual) and TS7223 (quad) as the single-channel foundation of the series. Key features include rail-to-rail input common-mode range, an open-drain output that allows wired-OR logic and level-shifting to any pull-up voltage, very low supply current typically well under 10 uA, and 5 V/10 V operation suitable for industrial sensor interfaces. The BiCMOS process combines CMOS input stages with bipolar output drive for a balance of low power and reasonable switching speed. Internal ESD protection on the inputs (HBM 2000 V per the datasheet absolute maximum ratings) further improves robustness in handheld and field-deployed equipment. Typical applications include battery-pack voltage monitoring, threshold detectors, window comparators, and signal conditioning in IoT sensor nodes, wearables, and portable medical devices. The small SOT-23-5 footprint also makes the device attractive for space-constrained designs such as hearing aids and remote keyless-entry keyfobs. When designing with this part, choose the pull-up resistor on the open-drain output based on the desired propagation delay versus power budget; lower pull-up resistance speeds up edges but increases static current when the output is LOW.
TS902ID - Dual Rail-to-Rail Op Amp with Standby | STMicroelectronics
The STMicroelectronics TS902ID is a dual rail-to-rail CMOS operational amplifier with a standby position, offering 1.4 MHz gain-bandwidth product, 10 mV offset voltage, and operation from single or dual supplies up to 16 V in a 14-pin SOIC package. The device is intended for instrumentation, industrial control, and signal-conditioning systems where low-power standby operation and rail-to-rail input and output behavior are useful. An operational amplifier is an analog integrated circuit that amplifies the voltage difference between its two inputs while using negative feedback to set the gain. The TS902ID belongs to the operational-amplifier hierarchy, where a dual amplifier provides two amplifier channels in one package. Rail-to-rail input and output stages allow signals to approach the supply rails, while the standby function reduces supply consumption and places the outputs in a high-impedance state. Key features include rail-to-rail input and output voltage ranges, a 1.4 MHz gain-bandwidth product, and 10 mV typical input offset voltage. The amplifier supports single- or dual-supply operation from 2.5 V to 16 V according to the available manufacturer information, and its standby current is specified at 0.5 uA. The 14-SO package supports conventional surface-mount assembly and exposes both amplifier channels and the standby control. The TS902ID uses a CMOS operational-amplifier architecture designed for general-purpose analog signal conditioning. Its low standby current supports portable and instrumented systems that need to reduce consumption when measurements are not active. Rail-to-rail operation is useful when the available signal range is close to the supply voltage, although input common-mode, output swing, noise, and stability conditions still need to be checked against the application. Typical applications include low-power instrumentation, industrial sensor interfaces, battery-operated measurement equipment, audio and control-signal conditioning, and dual-channel analog systems. The dual-channel configuration can reduce board area when two independent signal paths are required. The standby position is particularly appropriate for systems that periodically disable the amplifier while retaining the device in the circuit. When laying out a TS902ID design, keep the input and output paths short, provide stable feedback compensation, and bypass the supply pins with suitable ceramic capacitance. Do not assume that standby mode preserves signal accuracy at the moment of switching; verify the timing against the system requirements. The manufacturer datasheet should be used for the complete electrical limits, pin connections, and application recommendations. This page combines verified manufacturer and distributor references with practical engineering guidance for instrumentation, power-conscious analog design, and drop-in replacement assessment.
TS912ID - Dual Rail-to-Rail CMOS Op Amp | STMicroelectronics
STMicroelectronics TS912ID is a dual rail-to-rail CMOS operational amplifier with two independent amplifiers, an 8-pin SOIC package, and operation from single or dual supplies. Verified distributor listings identify it as a 2.7 V to 16 V device with approximately 800 kHz gain-bandwidth product and 1.3 V/us slew rate. The rail-to-rail input and output architecture supports signal stages whose operating range approaches the available supply voltage. An operational amplifier is an analog building block that uses high open-loop gain to amplify voltage differences while feedback determines the closed-loop behavior. A dual op-amp combines two amplifiers in one package, allowing designers to implement filters, buffers, level conversions, or paired signal-conditioning stages while reducing board area. CMOS construction supports low-power and low-noise signal-chain designs across industrial, instrumentation, communications, and consumer equipment. The TS912ID's rail-to-rail input range includes both supply rails, while its rail-to-rail output can swing close to the upper and lower limits. The verified 800 kHz bandwidth provides useful response for general-purpose low-frequency and moderate-frequency applications, while the 1.3 V/us slew rate supports faster transitions than very low-bandwidth precision amplifiers. Two independent, frequency-compensated amplifiers are contained in the same 8-SOIC package. Supply flexibility is central to the device: it can operate from a single 2.7 V minimum supply or from dual positive and negative rails. This makes it suitable for battery-powered instrumentation, active filtering, transducer interfaces, and general analog signal conditioning. Designers should still verify input and output common-mode limits, output-load behavior, noise, input-bias-current requirements, and stability against the conditions of the manufacturer datasheet. Typical uses include low-frequency active filters, sensor-signal conditioning, audio and communications interface blocks, voltage buffering, and two-channel sensor amplification. The SOIC-8 package is straightforward for conventional PCB assembly and breadboard or prototype layouts, although exposed-pad thermal management is not applicable. The primary design consideration is to place input, feedback, and decoupling components so that high-gain layouts remain stable. Keep sensitive input traces short, maintain a low-impedance ground reference, and follow the datasheet's recommended bypass capacitance. Verify the actual output swing against the load and required logic or sensor levels rather than assuming ideal rail-to-rail behavior. This page combines verified distributor pricing, manufacturer datasheet access, same-package replacement data, and practical selection guidance. It separates explicitly published facts from parameters requiring design verification, helping engineers source TS912ID without relying on generic amplifier descriptions.
TS912IN - Dual Rail-to-Rail CMOS Op Amp | STMicroelectronics
The STMicroelectronics TS912IN is a dual rail-to-rail CMOS operational amplifier with two amplifier channels, a 2.7 V to 16 V supply range, and an 8-pin Mini DIP package. The device supports single-supply or dual-supply operation, with rail-to-rail input and output voltage ranges. According to the manufacturer datasheet, its typical input bias current is only 1 pA, maximum input offset voltage is 2 mV, and supply current is approximately 200 µA per amplifier at a 3 V supply. These characteristics make the TS912IN suitable for low-power instrumentation, sensor interfaces, and signal-conditioning circuits that require low input bias and flexible supply operation. A CMOS operational amplifier is a voltage amplifier whose differential input controls the voltage applied to its output. Rail-to-rail input and output ratings allow the amplifier to operate close to the positive and negative supply rails, increasing the usable output range in single-supply systems. In the electronics hierarchy, the TS912IN is a dual operational amplifier, which belongs to the broader class of analog amplifier ICs and ultimately to integrated circuits used for analog signal processing. Key features include two independent amplifier channels, rail-to-rail input and output operation, and a 2.7 V to 16 V total supply range. The 1 pA typical input bias current is particularly useful for high-impedance sources because it minimizes source-loading error. Maximum input offset voltage of 2 mV supports accurate amplification of signals near the lower end of the input range. Operation from a 3 V supply at approximately 200 µA per amplifier also helps limit power consumption in battery-operated equipment. The TS912IN uses CMOS input circuitry to provide low bias current and low supply consumption. Rail-to-rail input behavior is important when the signal can approach either supply rail, while rail-to-rail output capability allows the output to use much of the available supply voltage. Designers should still account for output-current limits, load impedance, input common-mode behavior, and output-voltage headroom under the selected supply voltage and load conditions. Typical uses include low-power sensor signal conditioning, portable measurement instruments, battery-powered monitoring, and general-purpose analog filtering. The dual configuration allows one package to provide two amplifier channels for gain stages, buffers, comparators, or active filters. When the source impedance is high, the 1 pA typical bias current reduces loading, although PCB leakage and guard-ring techniques may still be necessary in demanding measurements. When designing around the TS912IN, use stable bypass capacitance at the supply pins and keep feedback components close to the amplifier pins to minimize parasitic effects. Confirm the required output swing, load, input range, and noise performance against the manufacturer datasheet before finalizing a high-gain or precision application. This page consolidates the verified manufacturer descriptions, distributor references, package information, technical characteristics, and substitution constraints for the TS912IN. It also distinguishes verified data from unavailable pricing, compliance, and pin-mapping details, helping engineers evaluate the amplifier without treating unverified substitute parts as drop-in equivalents.
TS914ID - Quad Rail-to-Rail CMOS Op Amp | STMicroelectronics
STMicroelectronics TS914ID is a quad rail-to-rail CMOS operational amplifier with a 1.4 MHz gain-bandwidth product, operating from 2.7 V to 16 V and supplied in a 14-pin SOIC package. The device accepts single or dual supply voltages and supports rail-to-rail input and output operation, allowing signals to approach either supply rail. Its extremely low 1 pA typical input bias current suits high-impedance sensing circuits, while the 2 mV maximum input offset voltage provides adequate precision for general-purpose analog signal conditioning. A CMOS operational amplifier is a voltage-controlled, high-gain analog building block whose differential input is amplified relative to ground or another reference voltage. The TS914 belongs to the operational-amplifier hierarchy, combining four amplifiers in one integrated circuit. It is designed for low-power, single-supply and dual-supply systems where four independent analog channels can be implemented in one compact 14-pin SOIC package. Key features include four amplifier channels, rail-to-rail input and output ranges, a 2.7 V to 16 V supply-voltage range, and a 1.4 MHz gain-bandwidth product. The typical input bias current of 1 pA is particularly valuable when source impedances are high, because it minimizes the voltage error caused by bias current. The reported 200 µA supply current per amplifier at 3 V also supports battery-powered and portable equipment when the required bandwidth is moderate. The TS914's CMOS input stage enables operation close to the supply rails and supports low input bias current. Its 1.4 MHz bandwidth is appropriate for general-purpose amplification, filtering, buffering, and signal conditioning rather than high-speed precision instrumentation. Because the maximum offset voltage is specified as 2 mV, applications demanding sub-millivolt accuracy require additional calibration or a more precise amplifier. Typical uses include four-channel sensor interfaces, low-frequency active filters, audio and communication signal conditioning, portable instrumentation, and industrial control modules. Placing all four channels in one SOIC package reduces board area and external component count. Input common-mode and output swing limits, output-current capability, noise, and stability should still be checked against the manufacturer datasheet before fixing the supply voltage and external network. For reliable single-supply operation, keep the input common-mode voltage within the supported range, place input and feedback components close to the device, and provide suitable bypassing at each supply pin. Decoupling requirements and compensation values must follow the manufacturer datasheet rather than generic assumptions. If the source resistance is high, account for input bias-current and capacitance errors, and confirm that the selected feedback topology remains stable at the intended gain. This product page consolidates verified manufacturer and distributor information with package, application, replacement, and design guidance. It distinguishes verified parameters from information that still requires datasheet review, helping engineers evaluate TS914ID without mistaking generic amplifier assumptions for guaranteed TS914ID characteristics.
TS914IN - 4-Channel Rail-to-Rail Op Amp | STMicroelectronics
STMicroelectronics TS914IN is a four-circuit, rail-to-rail CMOS operational amplifier designed for single or dual supply operation, with a 16 V maximum supply voltage, 1 pA typical input bias current, and a 2 mV maximum input offset voltage. The device is supplied in a 14-pin through-hole DIP package, allowing one package to implement four amplifier channels. A CMOS operational amplifier is a voltage-controlled, high-gain analog signal-processing component used for buffering, amplification, sensing, filtering, and feedback control. The TS914IN belongs to the operational amplifier hierarchy within analog integrated circuits, where its rail-to-rail input and output capability makes it suitable for systems whose signal levels approach the available supply rails. Key features include four amplifier circuits, rail-to-rail input and output operation, support for single or dual power supplies, very low 1 pA typical input bias current, and low input offset voltage no greater than 2 mV. According to the STMicroelectronics manufacturer datasheet, the device is intended for applications operating from a single supply or from dual supplies up to 16 V. The low input bias current is especially useful when the amplifier is connected to high-impedance sensors, because the amplifier contributes minimal loading to the source. Rail-to-rail behavior also broadens the usable input and output range in low-voltage systems. The trade-off is that the 14-pin DIP package is larger than modern surface-mount packages, making TS914IN more appropriate for through-hole, legacy, industrial, and prototyping assemblies. Typical uses include battery-powered instrumentation, sensor interfaces, low-voltage signal conditioning, sample-and-hold circuits, active filters, and general-purpose analog control systems. Its four independent channels can reduce the number of packages required when a board needs several similar low-power amplifier functions. When designing around TS914IN, verify input and output common-mode limits, output-current capability, operating-temperature limits, and stability requirements against the manufacturer datasheet for the exact operating conditions. Input bias, offset, and supply currents should be checked with the source impedance and signal bandwidth, particularly in high-impedance precision measurements. This page consolidates verified manufacturer and distributor information, package and pin details, replacement constraints, comparison data, and application-specific engineering guidance. It distinguishes confirmed specifications from unavailable values so engineers can make sourcing and PCB-retention decisions without relying on unsupported assumptions.
TS921ID - 4MHz High-Output RRIO Op Amp | STMicroelectronics
The STMicroelectronics TS921ID is a single rail-to-rail input and output BiCMOS operational amplifier optimized for 3 V and 5 V operation, with a 4 MHz gain-bandwidth product, 1.3 V/us slew rate, and 80 mA output-current capability in an 8-pin SOIC package. An operational amplifier is a voltage-controlled differential amplifier that uses high open-loop gain to amplify small input signals. The TS921 belongs to the rail-to-rail input/output, or RRIO, family, allowing its input common-mode range and output swing to approach the supply rails. This makes it useful for low-voltage battery-powered equipment, sensor interfaces, audio stages, industrial controls, and portable instruments where the signal can occupy much of the available supply range. The TS921's principal features include low input noise of 9 nV/sqrt(Hz), a 4 MHz gain-bandwidth product, 1.3 V/us slew rate, and an output stage capable of delivering 80 mA. The manufacturer identifies the device as optimized and fully specified for 3 V and 5 V supplies, while verified distributor data also gives a 2.7 V to 12 V operating-voltage range. Rail-to-rail operation reduces the need for separate positive and negative supply rails in single-supply designs. The BiCMOS process combines bipolar input characteristics with CMOS output circuitry. In practical signal chains, the TS921 can condition low-level sensor outputs, buffer precision ADC inputs, or provide general-purpose gain. Its 80 mA output capability is useful for driving moderate loads, although sustained heavy loading can reduce output swing and increase power dissipation. The 4 MHz bandwidth supports applications requiring moderate rather than high-frequency closed-loop performance. Typical uses include battery-operated instrumentation, low-voltage audio, industrial sensor conditioning, active filters, and portable measurement equipment. The SOIC-8 format supports conventional surface-mount assembly, while the manufacturer datasheet provides the authoritative pin connection and recommended application information for layout and decoupling decisions. For single-supply operation, reserve output headroom for the load and check the input common-mode range across the complete signal excursion. Place the supply bypass capacitor close to the positive and ground pins, and use short, low-impedance feedback routes to limit parasitic feedback and preserve stability. This product page combines the verified manufacturer and distributor information with package, application, comparison, and design guidance. It identifies where TS921ID fits, highlights the 4 MHz bandwidth and 80 mA output-current capabilities, and clearly separates confirmed data from engineering details that require additional verification.
TS921IN - 4MHz Rail-to-Rail Op Amp | STMicroelectronics
The STMicroelectronics TS921IN is a single-amplifier operational amplifier with a 4 MHz gain-bandwidth product, 1 V/µs slew rate, rail-to-rail input and output capability, and an 8-DIP package. Its 80 mA typical output current supports higher-capacitive and load-driving capability than a conventional low-current general-purpose amplifier. An operational amplifier, or op amp, is a high-gain analog building block used to amplify, buffer, compare, filter, and control signals. The TS921IN belongs to the operational-amplifier hierarchy, which falls under analog amplifier ICs and broader semiconductor signal-conditioning devices. Its rail-to-rail input and output architecture is useful when the usable input or output range must extend close to the supply rails. Key characteristics include a 4 MHz gain-bandwidth product, 1 V/µs slew rate, low input-referred noise density of 9 nV/√Hz, and typical output current of 80 mA. The single-amplifier configuration allows a PCB footprint to remain compact, while the 8-DIP package provides straightforward through-hole assembly. The listed operating temperature range is -40°C to +125°C, supporting industrial-temperature applications. The TS921IN combines rail-to-rail signal handling with relatively high bandwidth and output-drive capability. Its low-noise specification is particularly useful for low-level audio, instrumentation, sensor-interface, and general analog signal-conditioning circuits. The 80 mA output current also allows the amplifier to drive more demanding loads than a typical comparator-oriented or ultra-low-power op amp, provided the supply voltage and thermal limits remain satisfied. Typical uses include low-level sensor amplification, active filtering, audio preamplification, buffer stages, threshold and comparator-style interfaces, and general industrial control circuitry. It can also serve as a rail-to-rail input/output buffer in systems where the input signal approaches either supply rail. Designers should still verify stability, output swing, load capability, and noise performance against the complete circuit requirements. A key design consideration is the trade-off between bandwidth, noise, and output drive. The TS921IN is more capable than a low-power, low-bandwidth amplifier, but it is not necessarily the optimal choice for every precision or micropower design. Input and output stability should be evaluated with the actual source impedance, load, supply voltage, and external compensation network. This page combines verified distributor specifications and availability with a practical TS921IN selection guide, application analysis, datasheet references, and defensible family alternatives. Pricing reflects the verified $0.58 unit-price listing as of October 29, 2026, while unavailable technical fields are explicitly marked rather than estimated.
TS922ID - Dual Rail-to-Rail Op Amp | STMicroelectronics
The STMicroelectronics TS922ID is a dual, rail-to-rail BiCMOS operational amplifier optimized for 3 V and 5 V operation, housed in an 8-pin small-outline integrated circuit package. Its two amplifier channels feature high output-current capability for driving low-load impedances, while the rail-to-rail input and output stages make it suitable for systems whose signal levels approach the supply rails. An operational amplifier is a high-gain, high-impedance analog amplifier used to amplify, buffer, compare, or filter signals. The TS922ID belongs to the operational-amplifier family within analog integrated circuits, providing two independent amplifier channels in one package. Rail-to-rail operation means the amplifier can process input and output signals close to the positive and negative supply limits, which improves utilization of the available supply voltage in mixed-signal systems. The TS922 and TS922A family is specifically described by STMicroelectronics as a dual BiCMOS operational-amplifier family optimized and fully specified for 3 V and 5 V operation. The TS922ID also provides high output currents, allowing the device to drive low-load impedances. These characteristics make it useful in audio output stages, sensor-conditioning circuits, active filters, and low-voltage industrial or battery-powered equipment. The TS922ID is identified as an active, RoHS-compliant, standard general-purpose amplifier with an operating temperature range of -40 °C to +125 °C. The device is supplied in an SOIC-8 package, and distributor listings identify the TS922ID as a dual amplifier with rail-to-rail operation. Because the device combines two amplifiers in one package, it can also reduce board area in designs that require two buffered or amplifying channels. A key application consideration is that the available supply voltage and load current determine whether the output stage remains within its intended operating region. Designers should also observe the absolute maximum ratings and recommended operating conditions in the STMicroelectronics datasheet, provide appropriate bypass capacitance near the supply pins, and confirm that the connected load does not exceed the amplifier's specified drive capability. This page combines the manufacturer datasheet, distributor inventory information, and verified cross-reference findings. It also distinguishes documented TS922ID data from parameters that require confirmation from the full datasheet or distributor inventory before production release.
TS922IN - Dual 4MHz Rail-to-Rail Op Amp | STMicroelectronics
STMicroelectronics TS922IN is a dual, rail-to-rail input and output BiCMOS operational amplifier optimized for 3 V and 5 V operation, with a 4 MHz gain-bandwidth product, 1 V/µs slew rate, and high output-current capability. The device is supplied in an 8-pin Mini DIP package and contains two independent amplifiers. According to the STMicroelectronics manufacturer datasheet, its rail-to-rail stages allow input and output voltages to approach the supply rails, while the BiCMOS architecture combines low input bias current with CMOS-style low power consumption. An operational amplifier is a high-gain, high-impedance analog signal-conditioning circuit used for voltage amplification, buffering, filtering, and closed-loop feedback control. Within the broader semiconductor hierarchy, the TS922IN is a dual precision analog amplifier, falling under the categories of operational amplifier, analog IC, and semiconductor. Its two amplifier sections can independently process signals or operate together in differential and analog signal-conditioning circuits. Key electrical characteristics include a 4 MHz gain-bandwidth product, 1 V/µs slew rate, low noise identified as 9 nV/√Hz, and output-current capability up to 80 mA. The supported supply range is 2.7 V to 12 V, with operation optimized around 3 V and 5 V rails. Rail-to-rail input and output behavior is especially useful when signal amplitudes occupy much of the available supply-voltage range. The 80 mA output capability also permits relatively low-load-impedance drive compared with many general-purpose dual amplifiers. The TS922 family uses a BiCMOS input stage to combine bipolar-device characteristics with CMOS power behavior. Its dual architecture saves board area by placing two amplifiers in one package. The manufacturer describes the devices as optimized and fully specified for 3 V and 5 V operation, while also identifying a wider operating range extending to 12 V. This makes the TS922IN relevant to industrial controls, sensor interfaces, audio paths, data acquisition, and general dual-amplifier designs. Typical uses include low-level sensor conditioning, active filtering, audio preamplification, voltage buffering, and mixed-signal circuits requiring two amplifiers. The rail-to-rail output is useful when driving subsequent stages whose common-mode range is limited. The high output current can also reduce the need for an additional output-buffer stage in moderate-load applications. Designers should verify output swing, input common-mode behavior, load stability, and noise at the actual supply voltage and operating frequency. Decoupling capacitors should be placed close to the supply pins, and unused amplifier sections should be configured according to the manufacturer datasheet rather than left floating. The 8-pin Mini DIP package also requires adequate spacing for through-hole assembly and careful handling during insertion. This page combines manufacturer specifications, verified distributor information, package guidance, drop-in alternatives, comparison data, and practical application notes. It is intended to help engineers identify whether the TS922IN fits a 3 V or 5 V dual-amplifier design before purchasing or modifying an existing PCB.
TS924IN - Quad 4MHz Rail-to-Rail Op Amp | STMicroelectronics
STMicroelectronics TS924IN is a quad, rail-to-rail BiCMOS operational amplifier optimized for 3 V and 5 V operation, with four amplifier channels, 4 MHz gain-bandwidth product, 1.3 V/us slew rate, and low input-offset voltage up to 900 uV. The device is supplied in a 14-pin DIP package, making it suitable for conventional through-hole and legacy industrial designs. An operational amplifier is a high-gain analog signal-conditioning IC used in the broader voltage-amplifier and analog IC hierarchy. The TS924IN combines four independent amplifiers in one package, allowing compact implementation of filters, amplifiers, comparators, instrumentation circuits, and signal-conditioning stages. Its rail-to-rail output design supports operation close to the supply rails, while its BiCMOS construction combines bipolar input characteristics with CMOS output stages. The headline specifications are 4 MHz gain-bandwidth product, 1.3 V/us slew rate, and input offset voltage of 900 uV maximum. The TS924 family is fully specified for 3 V and 5 V supply operation, and the supplied operating-range information extends to 12 V. Its high output-current capability is particularly useful for driving low-impedance loads compared with many general-purpose op-amplifier choices. Each channel can operate as an amplifier, comparator, or active-filter building block. The wide available bandwidth supports signal paths that need more gain-bandwidth than low-speed precision-oriented amplifiers, while the 1.3 V/us slew rate allows moderate-amplitude signals to transition without excessive distortion. Four integrated channels can reduce package count and simplify board layout in multi-channel measurement and control systems. Typical uses include industrial sensor interfaces, low-voltage audio and communication circuits, active filters, data-acquisition front ends, process-control loops, and general-purpose analog signal conditioning. The 14-DIP format is especially useful when maintaining an existing through-hole design or avoiding a conversion to a surface-mount footprint. Input and output protection should still be considered because the verified data does not establish the maximum input or output voltage range. The principal design consideration is the power relationship between supply voltage, output swing, load current, and dissipation. Because no thermal-resistance or absolute maximum-rating data was included in the verified results, those values must be confirmed in the manufacturer datasheet before production release. Decoupling capacitors should be placed close to the supply pins and return pins should follow a low-impedance layout. This product record combines verified manufacturer and distributor information, package-specific replacement guidance, practical design considerations, and a parameter comparison that helps engineers distinguish true pin-compatible alternatives from merely functional substitutes. It supports component selection for legacy 14-DIP analog designs without treating incompatible package or performance variants as drop-in replacements.
TS925ID - Quad 4MHz Rail-to-Rail Op Amp | STMicroelectronics
STMicroelectronics TS925ID is a quad operational amplifier with rail-to-rail input and output capability, 4 MHz gain-bandwidth product, 1.3 V/us slew rate, and operation from 2.7 V to 12 V in a 16-pin SOIC package. Each amplifier can deliver 80 mA of output current, allowing it to drive up to 32 loads according to the manufacturer documentation. An operational amplifier is an analog signal-processing IC that uses high open-loop gain to amplify voltage differences between two inputs. The TS925ID belongs to the operational-amplifier hierarchy and combines four amplifiers in one package. Rail-to-rail input behavior supports operation near the positive and negative supply rails, while rail-to-rail output behavior provides greater output-voltage range than conventional amplifiers constrained by the supply rails. The principal features include 9 nV/Hz input-voltage noise, low distortion, 4 MHz bandwidth, and 1.3 V/us slew rate. The 80 mA output-current capability distinguishes the TS925ID from lower-current general-purpose op amps, making it useful where several amplifiers must drive heavier resistive or capacitive loads. Its quad configuration also reduces board area by integrating four amplifier channels. The TS925ID combines bipolar input and CMOS output stages, identified in technical listings as a BiCMOS amplifier. This architecture supports rail-to-rail operation while retaining low-noise bipolar input characteristics. Because the four channels share a common package, careful consideration of power-supply routing, grounding, output isolation, and thermal behavior is required in multi-channel analog systems. Typical uses include audio output stages, active filters, sensor-conditioning circuits, buffer amplifiers, communications receivers, and industrial control systems. Its quad organization is particularly useful when a design needs four closely related analog channels. The adjustable phantom-ground feature can support signal references in applications requiring an artificial ground, while the standby mode can reduce power consumption when the amplifier is not needed. Designers should use the manufacturer datasheet to verify the complete electrical limits, pin configuration, output-current conditions, stability requirements, and recommended external components. Decoupling capacitors should be placed close to the supply pins, and outputs that drive capacitive loads may require isolation resistors or other stability measures. Because the available verified specification excerpt does not provide the complete pin table, the package diagram should not be used as a substitute for the official datasheet. This page consolidates the verified TS925ID operating range, bandwidth, slew rate, noise, output-current, package, pricing, and sourcing information into an engineering-focused reference. It also distinguishes verified same-package alternatives from parts that require package or electrical revalidation, helping designers make a safer replacement decision before committing a new PCB layout.
TS931BILT - 100kHz Rail-to-Rail Micropower Op Amp | STMicroelectronics
The STMicroelectronics TS931BILT is a single-channel CMOS operational amplifier in a SOT-23-5 package, featuring rail-to-rail output swing, micropower consumption, and operation down to 2.7 V single supply. As a member of the TS93x family (single/dual/quad variants), it delivers 100 kHz gain-bandwidth product while drawing only a few microamps of quiescent current, making it an excellent choice for battery-powered and portable applications. An operational amplifier (op-amp) is a high-gain DC-coupled electronic voltage amplifier with differential inputs and, typically, a single-ended output. Within the broader signal-conditioning hierarchy, op-amps sit between transducers/ADC front ends and downstream digital processing; rail-to-rail output variants extend the usable output swing to nearly both supply rails, maximizing dynamic range in low-voltage systems. Micropower CMOS op-amps like the TS931BILT optimize this topology for low-Iq operation, trading GBW and slew rate for extended battery life in handheld, IoT, and remote-sensor designs. Key specifications include a 2.7 V to 10 V supply range, 100 kHz GBW, rail-to-rail output (reaching 2.9 Vpp with RL = 100 kΩ at 3 V supply), CMOS input stage, and an operating temperature range of -40 °C to +105 °C. The SOT-23-5 package is among the smallest standard op-amp footprints, enabling compact PCB layouts in space-constrained designs. Architecturally, the TS931BILT uses a CMOS input stage with a class-AB output stage to deliver rail-to-rail output swing at low quiescent current. The 'B' suffix denotes the enhanced second-generation variant, offering improved offset and noise compared with the original TS931, while the 'I' in 'ILT' indicates the industrial temperature grade (-40 °C to +105 °C). Typical applications include battery-powered instrumentation, portable medical devices, sensor signal conditioning, active filters, and transducer interfaces. The micropower Iq makes it ideal for always-on circuits where sleep current must be minimized. When designing with this op-amp, note that the CMOS inputs have lower bias current than bipolar alternatives but may exhibit higher leakage at elevated temperatures. Decouple the supply with a 100 nF ceramic capacitor placed close to the VCC pin to suppress noise. This page synthesizes distributor pricing, drop-in alternatives within the same SOT-23-5 footprint, and practical design notes that go beyond the manufacturer datasheet, helping engineers select the right op-amp quickly.
TS931ID - 100kHz Rail-to-Rail Op Amp | STMicroelectronics
The STMicroelectronics TS931ID is a single-amplifier, general-purpose operational amplifier with a 100 kHz gain-bandwidth product, rail-to-rail output operation, and a 2.7 V minimum supply voltage, packaged in an 8-pin SOIC. It operates from single 2.7 V to 10 V supplies, consumes approximately 20 µA, and provides an extremely low typical input bias current of 1 pA. The device is suited to portable instrumentation, low-power signal conditioning, buffering, and general analog signal-processing applications. An operational amplifier, or op amp, is an analog integrated circuit that provides high open-loop gain and feedback control for amplification, filtering, comparison, buffering, and signal conversion. The TS93x family belongs to the broader operational-amplifier hierarchy, which includes instrumentation, rail-to-rail, micropower, and precision amplifier categories. Rail-to-rail output operation allows the TS931ID to approach its supply-voltage limits at the output, improving dynamic range in low-voltage systems where usable signal headroom is limited. The TS931ID provides several characteristics suited to compact analog designs. Its 100 kHz gain-bandwidth product supports moderate-frequency amplification and feedback networks, while the approximately 20 µA supply consumption suits battery-operated equipment. The 1 pA typical input bias current minimizes disturbance to high-impedance sources. According to the available STMicroelectronics datasheet material, the device can reach a 2.9 Vpp output swing with a 100 kΩ load when supplied at 3 V. The TS931ID uses CMOS inputs and includes ESD protection, making it appropriate for low-leakage analog interfaces. Rail-to-rail output swing improves usable signal range near the positive or negative supply rail, but input common-mode behavior, output-current capability, stability, and drive into capacitive loads must still be checked against the complete operating condition. The single-amplifier configuration also reduces board area when one independent analog channel is required rather than a dual or quad device. Typical uses include low-power sensor conditioning, portable measurement systems, analog buffering, low-current-to-voltage conversion stages, and small-signal control circuits. Its combination of a 2.7 V minimum supply, 20 µA-class consumption, and 100 kHz bandwidth is particularly relevant to battery-powered instrumentation. The 8-pin SOIC package supports conventional surface-mount assembly and is convenient for prototypes, repair, and mixed analog or mixed-signal boards. Designers should account for output headroom when driving loads, verify stability with the selected feedback network and load capacitance, and route sensitive input traces away from switching nodes. Input and output bypassing must follow the manufacturer recommendations. Because the verified source set does not provide complete offset, slew-rate, common-mode-range, and absolute-maximum-rating tables, those values should be confirmed in the official datasheet before a safety- or precision-critical design is released. This page consolidates the verified distributor specifications, package information, purchasing reference, family-level alternatives, and practical analog-design guidance. It also distinguishes documented values from parameters that still require direct confirmation from the manufacturer datasheet, helping engineers move from part selection to PCB implementation without presenting unverified figures as facts.
TS932ID - Dual 100 kHz Rail-to-Rail Op Amp | STMicroelectronics
The STMicroelectronics TS932ID is a dual, rail-to-rail-output micropower operational amplifier with a 100 kHz gain-bandwidth product, 0.05 V/µs slew rate, and a 2.7 V to 10 V supply-voltage range. The device is supplied in an 8-pin SOIC package and is intended for low-power, low-frequency signal conditioning where low supply current and CMOS input characteristics are important. An operational amplifier, or op amp, is a high-gain analog building block used to amplify, buffer, compare, and filter signals. The TS93x family belongs to the amplifier IC hierarchy, where rail-to-rail output stages allow an output voltage to approach the supply rails. This capability makes the TS932ID suitable for battery-powered sensors, portable instrumentation, and low-voltage analog interfaces. Key characteristics include a 100 kHz gain-bandwidth product, 0.05 V/µs slew rate, and typical supply-current consumption of 20 µA. The output can reach 2.9 Vpp when supplied from 3 V with a 100 kΩ load. The TS93x series also features CMOS inputs, ultra-low input bias current of approximately 1 pA, and ESD protection. These characteristics favor high-impedance sources and energy-limited systems rather than demanding high-speed or high-precision instrumentation. The TS932ID is a dual amplifier, allowing two independent signal paths in one package. Its rail-to-rail output architecture simplifies signal conditioning near low supply voltages, while its micropower operation reduces the burden on batteries or harvested-energy supplies. The 100 kHz bandwidth is adequate for audio-frequency, sensing, and general-purpose feedback-control loops, but it is not intended for high-frequency filtering, video amplification, or communications waveform processing. Typical applications include battery-operated sensor conditioning, low-current comparator or threshold functions, portable measurement modules, low-frequency active filters, analog sensor interfaces, and general-purpose buffering. In each case, the device provides two amplifier channels in a compact 8-pin SOIC while consuming approximately 20 µA under the stated family conditions. Designers should verify output load, input common-mode range, output swing, noise, offset, stability, and operating-temperature limits against the manufacturer datasheet before release. Decoupling capacitors should be placed close to the supply pins, and feedback-network components should be selected with practical bias-current and leakage considerations. This page consolidates the verified distributor information, manufacturer-family characteristics, package details, application guidance, and substitution limitations for TS932ID. It also distinguishes documented drop-in options from unsupported cross-package or functional substitutes so engineers can make a traceable replacement decision.