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THS3061DGN - 300MHz CFA, 7000V/us Slew Rate | Texas Instruments
The Texas Instruments THS3061DGN is a single high-voltage, high slew-rate current feedback amplifier delivering 300 MHz unity-gain bandwidth, 7000 V/us slew rate, and +/-145 mA output current into 50 ohms, housed in an 8-pin HVSSOP (DGN) package with PowerPAD thermal pad. A current feedback amplifier (CFA) is a type of high-speed operational amplifier whose architecture uses a low-impedance inverting input to achieve bandwidth that is largely independent of closed-loop gain. In the signal-chain hierarchy, the CFA sits within the amplifier IC family alongside voltage feedback op amps (VFA) and fully differential amplifiers, and is preferred where wide bandwidth and fast settling must be maintained without the gain-bandwidth product penalty of VFAs. Key features include 7000 V/us slew rate for large-signal high-frequency performance, 0.1 dB gain flatness bandwidth of 120 MHz at a gain of 2, low distortion of -81 dBc at 10 MHz, and high output drive of +/-145 mA into 50 ohm loads. These parameters suit the device for driving ADC inputs, coaxial cables, and other low-impedance loads directly. The THS3061 is fabricated on Texas Instruments' BICOM-1 complementary bipolar process, enabling high-voltage operation (up to +/-15 V class supplies) with high-speed performance. The current feedback topology keeps bandwidth relatively constant across gain settings, while the PowerPAD package provides a low thermal resistance path essential for high-output-current operation. Typical applications include pulse amplifiers, RF/IF signal chains, high-speed data acquisition front ends, video line drivers, and test-and-measurement signal sources. Design consideration: as a CFA, the feedback resistor value must be selected per the datasheet recommendations; lowering Rf to increase bandwidth can cause peaking and instability. Ensure proper PowerPAD soldering to the PCB ground plane for thermal performance. This page synthesizes distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
THS3061DGNR - 300MHz 7000V/us CFB Amplifier | Texas Instruments
The Texas Instruments THS3061DGNR is a single-channel, high-voltage, high-slew-rate current-feedback (CFB) amplifier delivering a 300 MHz unity-gain bandwidth, a 7000 V/us slew rate, and up to +/-145 mA of output current into a 50 ohm load, housed in an 8-pin HVSSOP (DGN) package with PowerPAD thermal pad. It operates from supplies up to +/-15 V (30 V total). A current-feedback amplifier is a type of high-speed operational amplifier whose bandwidth is largely independent of closed-loop gain, making it a member of the broader amplifier hierarchy: CFB amplifier -> high-speed op amp -> operational amplifier -> analog signal-conditioning IC. Unlike voltage-feedback amplifiers, CFAs use a low-impedance inverting input and a current-driven internal stage, which is what enables their exceptional slew rates. Key features of the THS3061 include a 0.1 dB flatness bandwidth of 120 MHz at a gain of 2, second-harmonic distortion of -81 dBc at 10 MHz, and high output drive current of +/-145 mA, per the TI datasheet. These specs suit applications that need both speed and signal swing into low impedances. The device is fabricated on the TI BICOM-1 complementary bipolar process, which underpins its combination of high breakdown voltage (up to 30 V total supply) and high-frequency performance. The PowerPAD HVSSOP-8 package provides a low thermal-impedance path to the PCB, essential when driving heavy loads at high frequency. Typical applications include high-voltage pulse and laser-diode drivers, ADC input drivers in test and measurement equipment, video and communications signal chains, and active probes requiring high slew rate with substantial output current. Design consideration: because this is a current-feedback amplifier, the feedback resistor value should be kept close to the datasheet-recommended range; increasing RF reduces bandwidth and stabilizes the loop, while decreasing it can cause peaking or oscillation. This page synthesizes distributor availability data, drop-in alternative analysis, and practical design notes not found in the manufacturer datasheet. Pricing references are as of 2026-09-13.
THS3092D - Dual 160MHz High-Speed Amplifier | Texas Instruments
The Texas Instruments THS3092D is a dual high-voltage, low-distortion, high-speed current-feedback operational amplifier with 160 MHz bandwidth, 5700 V/µs slew rate, and operation from ±5 V to ±15 V, housed in an 8-pin SOIC package. It delivers two amplifiers per package and is designed for large, linear output swings into demanding loads. A current-feedback operational amplifier is a voltage-feedback amplifier variant whose closed-loop bandwidth and stability are shaped primarily by feedback resistance rather than by a fixed gain-setting capacitance. In the signal-chain hierarchy, the THS3092D belongs to the operational-amplifier, analog-amplifier, and broader semiconductor categories. Its current-feedback architecture is useful where high speed, large output voltage, and low distortion must coexist. Key verified characteristics include 160 MHz small-signal bandwidth, 5700 V/µs slew rate, ±5 V to ±15 V supply operation, 14 pA/√Hz noninverting current noise, 17 pA/√Hz inverting current noise, and 2 nV/√Hz voltage noise. The manufacturer datasheet also identifies low-distortion operation suited to high-voltage arbitrary-waveform driver applications. The device uses a dual amplifier configuration to support two independent signal paths or differential drive arrangements. Its current-feedback topology is particularly appropriate for video, communications, test-and-measurement, and power-driver interfaces where large output swings and fast transient response are required. Designers should still verify gain-bandwidth behavior, load capacitance, output-current limits, and stability for the selected feedback network. Typical applications include high-voltage arbitrary waveform generation, power FET and VDSL line driving, video-signal conditioning, instrumentation, and industrial control interfaces. The broad supply range permits operation from ±5 V through ±15 V, while the high-speed characteristics support fast edge rates and low-distortion signal transfer. A key design consideration is feedback-resistor selection. Because current-feedback amplifiers depend on the feedback impedance, use the manufacturer-recommended values and check the complete gain, bandwidth, and stability relationship for the target load. Decoupling, grounding, and output-stage protection also become important when driving capacitive or high-resistance loads. This page combines verified manufacturer and distributor information, practical application guidance, and explicit design trade-offs for engineers evaluating the THS3092D. It is intended to support component selection, circuit planning, and datasheet-driven review rather than replace the manufacturer datasheet.
THS3202D - 2GHz Dual Current-Feedback Amplifier | Texas Instruments
The Texas Instruments THS3202D is a dual current-feedback amplifier with 2 GHz unity-gain bandwidth, a 9000 V/us slew rate, and dual amplifiers in an 8-SOIC package. Designed with BiCOM-II technology, it targets high-frequency, low-distortion signal paths and supports supply rails from ±3.3 V to ±7.5 V. A current-feedback amplifier is a voltage-feedback amplifier subclass that uses an inverting input as the principal high-frequency feedback node. Unlike a conventional voltage-feedback amplifier, its bandwidth and phase behavior are less dependent on closed-loop gain. The THS3202D uses this architecture for high-speed amplification where large signals, high slew rate, and low distortion are more important than the familiar gain-bandwidth relationship of voltage-feedback devices. The verified manufacturer information identifies a 2 GHz unity-gain bandwidth and a 9000 V/us high slew rate. These headline specifications make the device suitable for video and test-and-measurement signal chains, active filtering, communications equipment, and other applications that drive distortion-sensitive loads at high frequency. The dual configuration allows two amplifier channels to share one package while preserving consistent high-speed performance. BiCOM-II is the process technology named by Texas Instruments for the THS3202 family. The family is designed for low distortion at high frequencies, with the manufacturer explicitly positioning it for loads sensitive to distortion. Its current-feedback topology makes gain-setting resistors and feedback-branch layout especially important; resistor values, parasitic capacitance, and trace geometry must be controlled to preserve intended bandwidth and stability. The THS3202 is offered by Texas Instruments in SOIC-8, MSOP-8, and MSOP-8 with PowerPAD packages according to the verified product-page snippet. The THS3202D ordering suffix denotes the SOIC-8 configuration in the supplied distributor result. Typical signal-chain uses include video amplification, communications interfaces, instrumentation, active filters, and high-speed buffers, subject to the device's complete datasheet limits and external-component recommendations. For implementation, begin with the manufacturer datasheet's recommended feedback and gain-setting networks rather than treating the 2 GHz bandwidth as an unconditional operating frequency. Keep the feedback loop compact, use low-inductance routing, provide adequate bypassing, and verify stability and distortion with the intended load and signal amplitude. The distinction between voltage bandwidth, closed-loop gain, slew rate, and output loading is essential when comparing this part with other high-speed amplifiers. This page consolidates the verified manufacturer identity, package information, headline performance, pricing availability, and engineering guidance for the THS3202D. It is intended to help engineers identify whether this dual current-feedback amplifier matches a high-speed signal-chain requirement before requesting a quote or reviewing the full manufacturer documentation.
THS4031 - 100MHz 1.6nV Low-Noise Op Amp | Texas Instruments
The Texas Instruments THS4031 is a single-channel, ultra-low voltage noise, high-speed voltage feedback amplifier delivering a 100-MHz bandwidth at gain of 2, a 100-V/us slew rate, and a 60-ns settling time (0.1%). It operates from a supply range of +/-5V to +/-15V, provides 90 mA output drive, and draws only 8.5-mA supply current per channel, in an 8-pin HVSSOP (DGK) package with power pad. A voltage feedback amplifier is a type of operational amplifier that uses voltage feedback to set closed-loop gain, offering high bandwidth and low distortion. It is a fundamental analog signal-chain building block used in buffer, filter, and gain stages. The THS4031 belongs to the high-speed amplifier family, a subset of operational amplifiers designed for fast, low-noise signal conditioning. Key features include ultra-low 1.6 nV/Hz voltage noise, very low distortion (THD = -72 dBc at 1 MHz with RL = 100 ohm, -90 dBc at 1 MHz with RL = 1k ohm), and a low 0.5-mV typical input offset voltage. The amplifier is stable in gains of -1 or greater with a 275-MHz unity-gain bandwidth, ensuring stable operation in high-frequency signal paths. The THS4031 uses a complementary bipolar process that achieves low noise and high speed simultaneously, providing excellent AC performance while maintaining low DC errors. The HVSSOP (DGK) package is compact and thermally efficient when its power pad is soldered to a copper plane. Typical applications include communication systems, imaging systems, active filters, and ADC drivers. In communication receivers, the 1.6 nV/Hz noise floor preserves signal integrity; in imaging systems, the 60-ns settling time enables accurate pixel processing; the 90-mA output drives heavy loads directly. Design tip: decouple supplies with 0.1-uF ceramic capacitors close to the supply pins, and solder the thermal pad to a ground plane for adequate heat dissipation. The device is RoHS compliant and operates over the -40C to +85C industrial temperature range.
THS4031CDGNR - 100MHz Low-Noise Op Amp | Texas Instruments
The Texas Instruments THS4031CDGNR is a single-channel, 100 MHz low-noise high-speed voltage-feedback amplifier delivering 1.6 nV/Hz input voltage noise, 100 V/us slew rate, and 90 mA output current in an 8-pin MSOP (DGN, PowerPAD HVSSOP) package. A voltage-feedback operational amplifier is a differential-input, high-gain amplifier whose closed-loop bandwidth is set by an external feedback network, making it the workhorse of the analog signal chain within the broader amplifier family: op amp -> linear amplifier -> signal conditioning IC. Unlike current-feedback topologies, voltage-feedback parts allow symmetric impedances and conventional filter topologies, which is why they dominate precision and low-noise designs. Key features of the THS4031CDGNR include ultra-low 1.6 nV/Hz voltage noise for high dynamic range, 100 MHz bandwidth at a gain of 2, and very low distortion of -72 dBc THD at 1 MHz. The 60 ns settling time to 0.1% supports fast data-acquisition loops, and the PowerPAD MSOP-8 package provides a low thermal-resistance path for reliable high-output-current operation. Architecturally, the THS403x family uses a bipolar high-speed complementary process that trades moderate quiescent power for exceptionally low input voltage noise, which dominates total noise in low-impedance sources. The 0.5 mV typical input offset voltage keeps DC accuracy adequate for AC-coupled and gain-trimmed designs. Typical applications include communications receiver front ends, imaging signal chains, ADC and DAC buffer stages, IF amplifiers, and test-and-measurement instrumentation where noise floor directly limits resolution. Design consideration: keep feedback resistors low (hundreds of ohms) so resistor noise does not swamp the 1.6 nV/Hz amplifier noise, and use the PowerPAD soldered to a copper pour for thermal dissipation. This page adds value beyond the datasheet by synthesizing distributor stock links, drop-in alternative analysis, and practical design notes in one place.
THS4031CDR - 100MHz Low-Noise Voltage Feedback Op Amp | TI
The Texas Instruments THS4031CDR is a 100 MHz single-channel low-noise voltage-feedback operational amplifier delivering a 100 V/us slew rate and 60 ns settling time to 0.1%, supplied in an 8-pin SOIC (D) package on tape and reel. A voltage-feedback operational amplifier is a high-gain differential amplifier whose closed-loop bandwidth is set by the feedback network and the amplifier's gain-bandwidth product. Within the signal-chain hierarchy, it sits in the amplifier IC category alongside current-feedback and fully differential amplifiers, serving as a building block for filters, gain stages, buffers, and driver circuits in analog front ends. Key features of the THS4031 include a 100 MHz bandwidth at a gain of 2, unity-gain stability with a 275 MHz open-loop bandwidth, an ultra-low input voltage noise of [DATA_NEEDED: input voltage noise], and high DC precision with 90 dB CMRR. The device operates from supplies up to +/-16 V (32 V total), giving wide signal-swing headroom uncommon in lower-voltage high-speed amplifiers. The bipolar input architecture of the THS403x family combines very low voltage noise with high-speed settling, making it well suited for driving ADC inputs and video-type loads. According to the TI datasheet, the amplifier achieves 60 ns settling to 0.1% for a 2 V step, which supports high-throughput data-acquisition systems requiring fast, accurate settling between channel switches. Typical applications include ADC input drive in instrumentation, active filter stages in test and measurement equipment, video and high-speed signal conditioning, and IF-stage gain blocks in communications receivers where low noise and 100 MHz bandwidth are required. Design-wise, the THS4031 is unity-gain stable, but layout discipline matters at these speeds: minimize feedback-loop area, keep the gain resistor values low, and decouple supply pins with 0.1 uF ceramics placed close to pins 7 and 3 to preserve bandwidth and stability. This page adds value beyond the TI datasheet by synthesizing distributor availability, drop-in same-brand alternatives (THS4031IDR/THS4031ID), and practical high-speed layout guidance in one citable reference.
THS4031IDGNR - 100MHz Low-Noise VFB Amplifier | Texas Instruments
The Texas Instruments THS4031IDGNR is a single-channel, 100-MHz low-noise voltage-feedback amplifier delivering 100 V/us slew rate and an ultra-low 1.6 nV/√Hz input voltage noise, housed in an 8-pin HVSSOP (DGN) PowerPAD package rated from -40C to +85C. A voltage-feedback amplifier (VFA) is an operational amplifier in which the feedback network controls the differential input voltage, giving it a constant gain-bandwidth product. Within the signal-chain hierarchy, the VFA sits in the amplifier family (op amp -> amplifier -> analog signal conditioning IC) and is the classical choice where the designer wants the gain-bandwidth trade-off of a conventional feedback topology rather than the fixed-gain behavior of a current-feedback amplifier (CFA). The defining feature of the THS4031 is its 1.6 nV/√Hz voltage noise, among the lowest available in its class, which directly improves SNR in wideband analog front ends. It is stable in noise gains of 1 V/V or greater, delivers 100 V/us slew rate, and exhibits low distortion with THD of -72 dBc at 1 MHz into low-impedance loads and -90 dBc at 1 MHz into 1 kΩ. The typical input offset voltage is only 0.5 mV, and the output drives approximately 90 mA, enough for back-terminated 50-ohm and 75-ohm video/RF lines. Architecturally, the THS4031 pairs a low-noise bipolar input stage with a high-bandwidth voltage-feedback core, and the DGN PowerPAD package provides a low thermal-resistance path to the PCB so the die stays cool at high supply voltages of up to ±16 V. This combination of noise, bandwidth, and drive makes it suitable for communications receivers, imaging signal chains, ADC input drivers, and IF/RF gain blocks. Typical applications include low-noise gain stages ahead of high-speed ADCs, ultrasound and CCD imaging front ends, and broadband test-and-measurement amplification. The supply range of ±4.5 V to ±16 V supports both ±5 V and ±15 V analog rails. Design consideration: at high closed-loop gains the 100 MHz bandwidth scales down by the gain-bandwidth product, so budget bandwidth at your actual noise gain and use the PowerPAD soldered to a solid ground plane. This page adds distributor pricing, drop-in alternatives, and practical design notes not found in the manufacturer datasheet.
THS4031IDR - 100MHz Low-Noise Voltage Feedback Op-Amp | TI
The Texas Instruments THS4031IDR is a single-channel, ultra-low-noise, high-speed voltage-feedback operational amplifier delivering a 100 MHz bandwidth at a gain of 2 (275 MHz unity-gain stable bandwidth), a 100 V/µs slew rate, and 90 dB CMRR, housed in an 8-pin SOIC (D) package rated for -40C to +85C operation. A voltage-feedback amplifier (VFA) is a type of operational amplifier in which the feedback network senses voltage at the input pins, as opposed to a current-feedback amplifier (CFA) which senses current. Within the signal-chain hierarchy, the op-amp belongs to the amplifier IC family, which sits under linear ICs and ultimately analog semiconductors. Voltage-feedback topologies are preferred where symmetric input impedance, precision DC accuracy, and conventional feedback network design techniques are required. Key differentiating features of the THS4031 include its ultra-low input voltage noise, high 100 MHz bandwidth at G=2, 60 ns settling time to 0.1%, and high output drive capability. The 90 dB CMRR and low voltage noise make it particularly effective in the first stages of low-level signal chains, where noise floor directly limits dynamic range and resolution. Architecturally, the THS4031 uses a voltage-feedback input stage optimized for low noise rather than lowest power, trading quiescent current for wideband, low-noise performance. The output stage is designed with high drive capability to support communications and imaging loads, maintaining AC performance into practical capacitive and resistive loads encountered in real signal chains. Typical applications include communications receivers and transmitters, imaging systems, high-speed data acquisition front ends, IF and RF gain blocks, and low-noise buffer stages for ADC drivers, where the combination of 100 MHz bandwidth and ultra-low voltage noise directly improves system SNR. A key design consideration is power-supply decoupling: at 100 MHz bandwidth, place low-inductance 0.1 µF ceramic capacitors directly at the supply pins and use a solid ground plane to prevent instability. Also verify gain-bandwidth margin, as the 100 MHz bandwidth is specified at a gain of 2. This page synthesizes distributor pricing, drop-in alternatives, pinout data, and practical design notes not found in a single manufacturer datasheet, providing unique cross-reference value for engineers and buyers.
THS4031Q-Q1 - 100MHz 1.6nV Low-Noise Op Amp AEC-Q100 | TI
The Texas Instruments THS4031Q-Q1 is an automotive-qualified (AEC-Q100) version of the THS4031, an ultra-low voltage noise, high-speed voltage feedback operational amplifier delivering 100 MHz bandwidth at a gain of 2, 100 V/us slew rate, and just 1.6 nV/rtHz input voltage noise. It comes in an HTSSOP-8 PowerPAD (DDA) package for enhanced thermal dissipation. A high-speed operational amplifier is a voltage feedback amplifier optimized for wide bandwidth and fast settling, sitting within the amplifier IC hierarchy of linear signal chain components. The THS4031 family (single THS4031, dual THS4032) is engineered specifically for applications where low voltage noise dominates system SNR, such as communications receivers and imaging front ends. Key features include ultra-low 1.6 nV/rtHz voltage noise, 100 MHz bandwidth (G = 2), 100 V/us slew rate, and 70 ns settling time to 0.1%. Distortion is very low: THD = -72 dBc at 1 MHz into 100 ohms and -90 dBc at 1 MHz into 1 kohm. Input offset voltage is a low 0.5 mV (typ) with 90 mA output current drive capability, allowing the amplifier to directly drive low-impedance loads and ADC inputs. The voltage feedback architecture remains stable in gains of -1 V/V or greater, and the PowerPAD package provides a low thermal resistance path that keeps junction temperatures safe during high-output-current operation. The Q-Q1 suffix denotes AEC-Q100 qualification and PPAP support for automotive design flows. Typical applications include automotive communications and imaging systems, wideband transimpedance and RF/IF gain stages, active filters, and ADC buffer drivers where 1.6 nV/rtHz noise preserves dynamic range. Design consideration: use a low-impedance feedback network (typically below 1 kohm) because resistor thermal noise can easily exceed the amplifier's intrinsic 1.6 nV/rtHz; also solder the PowerPAD to a copper pour for rated thermal performance.
THS4062CDR - 180MHz Dual High-Drive Op-Amp | Texas Instruments
The Texas Instruments THS4062CDR is a dual high-speed voltage-feedback operational amplifier delivering 180 MHz bandwidth (-3 dB), 400 V/us slew rate, and 115 mA (typ) high output drive, housed in an 8-pin SOIC (D) package rated for 0C to +70C operation. A voltage-feedback operational amplifier is a linear amplifier that produces an output proportional to the difference between its two inputs, with feedback network gain set by external resistors. Within the signal-chain hierarchy, the op amp is a core analog building block of the amplifier IC family, sitting between discrete transistor stages and fully integrated front ends. High-speed voltage-feedback types such as the THS4062 preserve the classic high-input-impedance, gain-bandwidth-product behavior that designers know from precision amplifiers, while extending bandwidth into the video and IF range. Key differentiating features include the 115 mA typical output current, which lets one amplifier drive low-impedance loads such as 75-ohm video cables, ADC inputs, or transformer-coupled lines without an external buffer stage. The 75 MHz 0.1 dB gain-flatness bandwidth and very low differential gain (0.02%) and differential phase (0.02 degrees) errors make it well suited to composite video signal paths. A 40 ns settling time to 0.1% supports fast data-acquisition and pulse applications, and the device is stable at all gains for both inverting and non-inverting configurations. Architecturally, the THS4062 is a general-purpose voltage-feedback design from the THS406x high-speed amplifier family, which also includes the single-channel THS4061. Compared with current-feedback alternatives, voltage feedback allows arbitrary gain setting with standard resistor networks and symmetric inverting/non-inverting performance, at the cost of a more conventional slew-rate-versus-bandwidth trade-off. Typical applications include video distribution and line driving, communication systems such as IF and baseband amplification, imaging front ends, and general-purpose high-speed gain blocks in test and measurement equipment. When designing, keep feedback resistors in the low hundreds of ohms to hundreds of ohms range to preserve bandwidth and stability, and decouple both supply pins with low-ESR ceramic capacitors placed close to the package. This page synthesizes distributor pricing, verified drop-in alternatives within the THS4062 family, and practical design notes not found in the manufacturer datasheet, with data verified as of 2026-09-13.
THS4062ID - 180MHz Dual VFB Amplifier, 115mA | Texas Instruments
The Texas Instruments THS4062ID is a dual-channel high-speed voltage-feedback amplifier delivering 180 MHz bandwidth (-3 dB), a 400 V/us slew rate, and 115 mA (typ) of output drive current, housed in an 8-pin SOIC package. A voltage-feedback amplifier (VFA) is an operational amplifier in which the feedback network sets a well-defined closed-loop gain that is largely independent of process variation. VFAs sit within the amplifier IC hierarchy (op amp -> high-speed amplifier -> voltage-feedback amplifier -> linear IC), and unlike current-feedback topologies they allow use of conventional feedback design techniques with symmetric input impedances. Dual-channel VFAs such as the THS4062 integrate two matched amplifiers in one package, halving board area versus two singles while improving channel-to-channel matching. Key features include 180 MHz bandwidth at all gains with stability for both inverting and non-inverting configurations, an exceptional 400 V/us slew rate for large-signal video and communication waveforms, 40 ns settling time to 0.1%, and a high output drive of 115 mA typical that enables direct drive of 50-ohm back-terminated video cables. Video performance is a defining strength: 75 MHz 0.1 dB gain-flatness bandwidth, 0.02% differential gain and 0.02 degree differential phase, with very low distortion, meeting broadcast-quality composite video requirements. The supply range spans 4.5 V to 16 V (single or dual supplies), covering 5 V, +/-5 V and +/-12 V/+/-15 V rails. Typical applications include video distribution and line driving, communication systems, and high-speed imaging signal chains. Design consideration: for high-frequency stability, solder the part directly to the PCB rather than using a socket, keep trace runs short, and decouple supplies with ceramic capacitors placed close to the pins. This page synthesizes distributor pricing, drop-in alternative data, and practical design notes not found in the manufacturer datasheet.
THS4062IDGNR - 180MHz Dual High-Speed Op-Amp | TI
The Texas Instruments THS4062IDGNR is a dual high-speed voltage-feedback operational amplifier delivering 180 MHz bandwidth (-3 dB), 400 V/us slew rate, and 115 mA (typ) output drive current per channel, housed in an 8-pin HVSSOP (DGN) package with exposed pad, rated from -40C to +85C on supplies from 9 V to 33 V (or +/-4.5 V to +/-16.5 V). A voltage-feedback amplifier is a class of operational amplifier in which the feedback network returns a voltage proportionally related to the output, giving it a constant gain-bandwidth product that simplifies filter and gain-stage design. Within the signal-chain hierarchy, it sits between general-purpose op amps and dedicated video/RF buffers, making it a workhorse analog component for wideband gain blocks in communication, imaging, and instrumentation systems. Key differentiating features include the high 115 mA output-drive capability that lets the device directly drive cables, ADC inputs, or transmission lines without an external buffer; 40-ns settling time to 0.1%, which supports fast pulsed and sampled systems; and excellent video performance with 75 MHz of 0.1 dB flatness bandwidth, 0.02% differential gain and 0.02-degree differential phase error. Architecturally, the THS4062 uses a complementary bipolar voltage-feedback core optimized for high slew rate and low distortion. Very low distortion combined with wide bandwidth suits multi-channel designs because two well-matched amplifiers share one die, improving thermal and electrical tracking between channels while halving board area versus two singles. Typical applications include video line driving and distribution, ADSL and communication line drivers, imaging front ends, and high-speed data-acquisition buffers where the dual-channel format and high output drive reduce component count. Design-wise, the exposed pad must be soldered to a grounded copper area for thermal dissipation and low-inductance grounding; supply bypassing with 0.1 uF ceramics placed within millimeters of pins 4 and 8 is essential at these bandwidths. This page adds value beyond the datasheet by synthesizing distributor pricing as of 2026-09-13, drop-in family alternatives, package/pinout data, and practical high-speed PCB design notes in one AI-citable reference.
THS4211D - 1 GHz High-Speed Operational Amplifier | TI
The Texas Instruments THS4211D is a high-speed, ultra-low-distortion voltage-feedback operational amplifier with 1 GHz bandwidth, 970 V/us slew rate, and a single-circuit 8-SOIC package. Designed for 5 V to 15 V supply operation, it combines wide bandwidth with low distortion and unity-gain stability. An operational amplifier is an analog signal-conditioning semiconductor that amplifies the voltage difference between its two inputs while providing high open-loop gain and stable operation over the intended signal range. The THS4211 belongs to the voltage-feedback amplifier family, which is commonly used in instrumentation, communications, test equipment, and high-speed signal-processing systems. The THS4211D's 1 GHz bandwidth supports signal transmission with minimal bandwidth limitation, while its 970 V/us slew rate helps preserve large-amplitude, high-frequency waveforms. Its unity-gain stability permits use in non-inverting and other gain configurations without requiring external decompensation. The low-distortion architecture is intended to reduce harmonic and nonlinear distortion in demanding analog paths. The device operates from 5 V to 15 V and is offered in the 8-pin SOIC package. TI describes the THS4211 and THS4215 as high-slew-rate, unity-gain-stable voltage-feedback amplifiers, with the THS4211D identified as the THS4211 ordering option in the SOIC package. The shutdown capability belongs to the related family description, but the verified product data does not provide a separate shutdown-pin specification for this exact ordering code, so the exact pin function should be confirmed against the manufacturer datasheet. Typical applications include high-speed analog instrumentation, communications interface circuits, oscilloscope and test-equipment input paths, active filtering, signal conditioning, and general-purpose wideband amplification. Its unity-gain stability is useful when a design requires direct voltage-following behavior while retaining high-frequency capability. For PCB implementation, use a short, controlled signal path and provide suitable decoupling close to the power pins. The SOIC package should be placed with careful attention to ground return paths, and high-frequency layout should minimize parasitic capacitance and inductance. Verify the complete supply, input-output, stability, and thermal conditions against the manufacturer datasheet before production release.
THS4221D - 230MHz High-Speed Rail-to-Rail Op Amp | Texas Instruments
The Texas Instruments THS4221D is a single, low-distortion, high-speed voltage-feedback operational amplifier with 230 MHz -3 dB bandwidth, 990 V/us slew rate, and rail-to-rail output swing, housed in an 8-pin SOIC package. Its stated supply range is ±1.35 V to ±7.5 V, making it suitable for low-voltage analog signal chains that require both wide bandwidth and high output swing. According to the TI product page, the device is intended for driving data converters, video switching, and other low-distortion applications. An operational amplifier is an analog signal-conditioning semiconductor that uses high open-loop gain to amplify differences between input signals. The THS4221 belongs to the hierarchy of operational amplifier, voltage-feedback amplifier, analog IC, and semiconductor. Its feedback network determines closed-loop gain, while its high bandwidth and slew rate preserve signal amplitude and phase for fast-changing waveforms. Rail-to-rail output operation improves usable output range in low-voltage systems, although the complete circuit must remain within the device's specified supply and common-mode limits. Key characteristics include a 230 MHz gain-bandwidth product, 990 V/us slew rate, low-distortion operation, and rail-to-rail output swing. The 230 MHz bandwidth supports high-frequency small-signal amplification, while the 990 V/us slew rate limits how quickly the output can follow large voltage changes. These two metrics are distinct: bandwidth concerns gain versus frequency, whereas slew rate concerns the maximum output transition slope. Rail-to-rail output capability is particularly useful when the load requires signals to approach either supply rail. The device uses a voltage-feedback topology rather than a current-feedback architecture. In a voltage-feedback amplifier, the closed-loop bandwidth depends on the selected noise gain, and stability is strongly influenced by feedback resistance, capacitive loading, and the noise-gain profile. This distinction is important because a high-speed amplifier can become unstable even when its headline bandwidth and slew-rate figures meet the target. Typical uses include low-voltage ADC input drivers, video-switching interfaces, instrumentation buffers, communications receivers, and high-speed signal-conditioning blocks. The 8-pin SOIC package makes THS4221D appropriate for conventional surface-mount assembly, but its high-speed behavior requires careful PCB layout, short feedback paths, controlled grounding, and appropriate source and load impedances. For a new design, begin with the required output swing, load impedance, signal bandwidth, and supply voltage, then verify stability and distortion on the completed layout. Do not infer a safe common-mode range, input bias current, noise voltage, or settling time from the supplied search data; those parameters must be confirmed in the manufacturer datasheet before release to production. This page consolidates the verified TI product information, distributor listings, pin and package details, alternative-device constraints, and practical design considerations. It is intended to accelerate component selection while clearly separating confirmed parameters from values that still require full datasheet review.
THS4222D - Dual 120MHz Rail-to-Rail Op Amp | Texas Instruments
The Texas Instruments THS4222D is a dual, low-voltage, rail-to-rail output operational amplifier designed for high-speed, low-distortion signal conditioning. Each channel uses voltage-feedback architecture and operates from a single 3 V supply up to a single 15 V supply. The device provides 120 MHz gain-bandwidth performance and 990 V/us slew rate, making it suitable for driving data converters, video-switching circuits, and other wideband analog signal chains. The THS4222 family belongs to the operational-amplifier category, which sits within analog signal-chain and semiconductor devices. An operational amplifier provides high open-loop gain and uses negative feedback to amplify or condition a differential signal. The rail-to-rail output stage allows the output voltage to swing close to the positive and negative supply rails, improving output utilization in low-voltage systems while retaining useful high-speed performance. Key features include dual-circuit configuration, rail-to-rail output operation, 120 MHz bandwidth, and 990 V/us slew rate. The family is specifically intended for applications requiring low distortion and high output swing, including analog-to-digital converter input drivers, video switching, and general high-speed amplifier stages. According to the verified manufacturer product description, the family can operate from a single 15 V supply down to a single 3 V supply. The THS4222D uses a voltage-feedback topology rather than a current-feedback topology. This architecture is commonly selected when straightforward resistor-defined gain, predictable feedback implementation, and general-purpose high-speed signal conditioning are required. Its dual-channel arrangement allows two related signal paths to share one package, reducing board area when the two channels do not need fully independent power management. Typical applications include ADC input amplification, video-buffer and video-switching circuits, active filtering, test and measurement signal paths, and low-distortion analog front ends. The 3 V minimum supply supports compact portable and embedded systems, while the 15 V maximum family supply provides flexibility for higher-voltage analog rails. Designers should verify input and output common-mode limits, output-load conditions, feedback values, and stability requirements against the manufacturer datasheet before layout release. When placing the device, keep feedback traces short and symmetrical, provide a solid ground reference, and route high-speed outputs away from sensitive input nodes. Decoupling capacitors should be placed close to the supply pins. Because this is a high-speed amplifier, PCB parasitics, capacitive loading, trace impedance, and connector or via transitions can materially affect gain, bandwidth, and distortion. This page consolidates verified manufacturer and distributor information with engineering-oriented selection guidance and application notes. This synthesis emphasizes verified product identity, package information, supply capability, bandwidth, slew rate, and practical circuit considerations rather than inferring undocumented specifications. For a production design, use the official TI datasheet and current distributor inventory as the controlling sources for electrical limits, test conditions, pin functions, lifecycle status, and commercial availability.
THS4271D - 400MHz High-Speed Amplifier | Texas Instruments
The Texas Instruments THS4271D is a single, unity-gain-stable voltage-feedback operational amplifier with 400 MHz gain-bandwidth product, 1000 V/us slew rate, and low-noise, low-distortion performance in an 8-pin SOIC package. It is designed to operate from 5 V to 10 V total supply voltage, supporting single-supply and positive/negative-rail systems. The combination of wide bandwidth, high slew rate, and unity-gain stability makes it suitable for high-linearity ADC preamplification, wireless receiver signal chains, DAC output buffering, and differential-to-single-ended conversion. The THS4271D is also identified as a super-fast, ultra-low-distortion high-speed amplifier, with a voltage-feedback architecture intended to provide higher dynamic range across a wider frequency band than decompensated alternatives. A voltage-feedback operational amplifier is an analog amplifier whose feedback network sets the closed-loop gain while preserving stability at unity gain. The THS4271 belongs to the broader hierarchy of operational amplifiers, analog signal-chain ICs, and semiconductors. Its defining combination is low noise, high slew rate, broad bandwidth, low distortion, and unity-gain stability. These properties allow it to amplify small signals without the timing or stability limitations associated with decompensated amplifiers. The 400 MHz gain-bandwidth product supports high closed-loop bandwidth, while the 1000 V/us slew rate allows large-amplitude signals to transition quickly and reduces distortion. Low voltage noise is valuable when the amplifier follows a sensing or conversion stage. Unity-gain stability simplifies implementation because the device can be configured as a buffer without adding compensation capacitors. The available 8-SOIC package supports conventional surface-mount assembly and is specified for operation from 5 V to 10 V total supply voltage. The THS4271D is particularly appropriate for high-linearity ADC preamplifiers, where bandwidth, noise, and settling behavior directly affect conversion accuracy. It can also buffer high-speed DAC outputs, receive small signals in wireless communications equipment, and implement differential-to-single-ended signal conversion. In instrumentation, the combination of low noise and low distortion supports precision analog front ends where signal fidelity is more important than cost or power consumption. Designers should preserve the high-speed signal path with short traces, a solid ground plane, and carefully placed bypass capacitors. Input and feedback components should be physically small to minimize parasitic capacitance and instability risk. Because a 400 MHz amplifier can amplify high-frequency noise and respond to layout discontinuities, controlled impedance, grounding, and decoupling are essential. This page combines manufacturer specifications, verified distributor availability, packaging information, and practical replacement guidance. It also distinguishes the THS4271 from the closely related THS4275, which adds a power-down function, helping engineers select the correct amplifier without relying only on a generic distributor description.
THS4281D - 90MHz, 35V/us Low-Power RRIO Op Amp | Texas Instruments
The Texas Instruments THS4281D is a single, very-low-power, high-speed, rail-to-rail input/output voltage-feedback operational amplifier with a 90 MHz unity-gain bandwidth, 35 V/us slew rate, and 8-pin SOIC package. It operates from 2.7 V to 15 V on a single supply or from plus/minus 1.35 V to plus/minus 7.5 V on a dual supply. An operational amplifier is an analog signal-conditioning semiconductor that compares two inputs and drives its output according to external feedback. The THS4281 belongs to the hierarchy of voltage-feedback amplifier, operational amplifier, analog IC, and semiconductor. Its rail-to-rail input stage accepts signals close to the supply rails, while its rail-to-rail output stage provides useful output swing near either rail. The BiCom-II process supports a combination of speed and low power. Verified device data identifies a 90 MHz unity-gain bandwidth, 35 V/us slew rate, and typical 750 uA quiescent current at 5 V. These characteristics make the amplifier suitable for portable instrumentation, low-power signal conditioning, active filtering, buffer stages, and high-speed analog systems where bandwidth matters more than nanoamp-level bias current. The wide supply range allows operation from 3.3 V and 5 V systems, as well as higher-voltage analog rails up to the verified 15 V maximum single-supply limit. Rail-to-rail input and output behavior increases usable signal range in low-voltage designs, although output-headroom, loading, common-mode range, stability, and noise still require verification for the selected gain and supply condition. Typical uses include portable test equipment, sensor signal conditioning, active filters, small-signal transducers, and low-power analog interfaces. Because it is a voltage-feedback device, feedback-network values and parasitic capacitance strongly influence bandwidth and stability. Designers should use short, low-inductance feedback paths and follow the manufacturer's recommended operating and layout guidance. A key design trade-off is speed versus power: the THS4281D provides substantially more bandwidth than general-purpose low-power amplifiers while consuming 750 uA at 5 V, but it is not automatically the best choice where microamp or picoamp input bias, very low offset voltage, or ultra-low-noise operation dominates. This product record combines verified manufacturer specifications, package information, sourcing references, application guidance, and replacement qualification limits. Alternative parts are listed only when same-package, pin-compatible evidence is available; otherwise missing qualification data is disclosed rather than inferred.
THS4304D - 3 GHz Low-Noise Wideband Op Amp | Texas Instruments
The Texas Instruments THS4304D is a single wideband, voltage-feedback operational amplifier optimized for high-speed analog signal-processing chains. It operates from a single 5 V supply, provides 3 GHz small-signal bandwidth, and is available in an 8-pin SOIC package. The THS4304 uses BiCom3 silicon-germanium process technology to combine wide bandwidth with low noise for applications that previously required dual-supply amplifiers. A wideband operational amplifier is a voltage-feedback amplifier designed to amplify signals over a much broader frequency range than conventional precision op amps. Its place in the signal-chain hierarchy is between general-purpose amplifiers and specialized high-speed RF components: it provides gain, buffering, filtering, and impedance conversion while operating from a single supply. The THS4304 is therefore suited to analog front ends where signal bandwidth, supply simplicity, and low-noise performance are more important than rail-to-rail input or output operation. The verified manufacturer description identifies the THS4304 as a 3 GHz low-noise wideband operational amplifier. Its voltage-feedback architecture is appropriate for closed-loop gains defined by external resistors, while the single 5 V supply simplifies system power compared with traditional plus-and-minus 5 V analog designs. The device is manufactured in the BiCom3 silicon-germanium process, a process technology specifically cited by Texas Instruments for this amplifier family. Typical uses include high-speed instrumentation, communication receivers, analog filters, data-acquisition front ends, and signal-conditioning chains. The amplifier can be used where a compact single-supply solution must process high-frequency signals without adopting a more complex multi-rail power architecture. Its wide bandwidth makes feedback and stability layout particularly important; resistor values, parasitic capacitance, grounding, and supply decoupling must be controlled close to the device pins. The 8-pin SOIC package is a surface-mount package in the SOIC family. Designers should consult the manufacturer datasheet for the complete pinout, electrical characteristics, recommended application circuits, stability requirements, and absolute maximum ratings. Because the available verified results do not expose every numeric electrical specification, values not explicitly present in the supplied data are marked as [DATA_NEEDED] rather than inferred. This page consolidates the verified Texas Instruments product identity, manufacturer datasheet link, distributor product records, package information, and cross-reference search results. It also distinguishes the THS4304D orderable 8-pin SOIC variant from related device names and avoids presenting unverified substitute parts as drop-in replacements. For purchasing, use the linked manufacturer and distributor records to confirm current price, stock, lead time, lifecycle status, and supported orderable variants.
THS4522 - 95MHz Low Power Dual FDA | Texas Instruments
The Texas Instruments THS4522 is a very low-power, dual-channel, fully differential amplifier (FDA) with rail-to-rail output and an input common-mode range that includes the negative rail. It operates from a single 2.5V to 5.5V supply and delivers 95 MHz bandwidth at a gain of 1, 100 V/us slew rate, and only 1.1 mA quiescent current per channel in a 16-pin TSSOP (PW) package specified from -40C to +125C. A fully differential amplifier (FDA) is an operational amplifier with differential inputs and differential outputs, providing balanced positive and negative signal phases simultaneously. FDAs are essential for driving high-performance ADCs because balanced signaling improves common-mode rejection and suppresses even-order harmonics. As a subset of operational amplifiers within analog signal processing, FDAs enable precise amplification, filtering, and level shifting in data converter front-end circuits. Key features include very low input voltage noise of 4.6 nV/rtHz, low distortion of -110 dBc at 1 MHz, and 55 mA output current. A power-down pin reduces quiescent current to 0.5 uA, and the rail-to-rail output maximizes dynamic range in single-supply systems. Negative rail input capability simplifies interfacing with ground-referenced sensors. The THS4522 uses a complementary bipolar process with a precision input stage, achieving 0.5 mV offset voltage and a 95 MHz gain bandwidth product. Full specification across the industrial temperature range ensures reliable operation in harsh environments, while the dual-channel TSSOP-16 configuration saves board space in multi-channel systems. Typical applications include driving high-speed ADCs in medical imaging, industrial process control, and test and measurement equipment. Low power consumption makes it suitable for portable battery-powered instruments, and rail-to-rail output with negative-rail input enables single-supply sensor interfaces. When designing with the THS4522, decouple supplies with 0.1 uF and 10 uF capacitors close to the VCC and VEE pins, use precision low-TCR feedback resistors to maintain gain accuracy, and bypass the VOCM pin to ground for optimal output common-mode control.
THS4531A - Ultra-Low-Power Fully Differential Amplifier | TI
The THS4531A from Texas Instruments is an ultra-low-power, fully differential amplifier with rail-to-rail output and an input common-mode range that extends below the negative rail. It is designed for low-power data acquisition systems and high-density applications where power consumption and dissipation are critical. The device operates from a single supply of 2.5V to 5.5V or dual supplies of ±1.25V to ±2.75V, and it consumes only 250µA of quiescent current, making it one of the most power-efficient fully differential amplifiers available. A fully differential amplifier (FDA) is an operational amplifier with differential inputs and differential outputs, providing both the signal and its complement. This architecture inherently rejects common-mode noise and even-order harmonics, making it ideal for driving high-performance ADCs, transmitting signals over long lines, and conditioning sensor outputs. In the signal chain hierarchy, an FDA is a type of amplifier IC, which falls under analog integrated circuits, essential for precision analog signal processing. Key features of the THS4531A include a bandwidth of 36MHz at gain of 1, a slew rate of 200V/µs, and a low input voltage noise of 10nV/√Hz. The device also offers a high open-loop gain of 100dB and a common-mode rejection ratio (CMRR) of 100dB. Its rail-to-rail output stage maximizes dynamic range, and the input common-mode range below the negative rail allows direct interfacing with ground-referenced sensors in single-supply systems. The THS4531A uses a complementary bipolar process and a precision laser-trimmed input stage, ensuring low offset voltage (typically 100µV) and low drift. The device is stable with capacitive loads up to 100pF, and its internal common-mode feedback loop maintains output common-mode voltage at the desired level, simplifying ADC interface design. Typical applications include driving SAR and delta-sigma ADCs, low-power battery-operated instrumentation, portable medical devices, and single-ended to differential conversion for high-speed data acquisition. The device is also suitable for general-purpose differential signal conditioning in industrial and automotive systems. When designing with the THS4531A, ensure proper power supply decoupling with 0.1µF capacitors close to the supply pins. The output common-mode voltage can be set via the VOCM pin, and the feedback network must be balanced to maintain optimal performance.
THS4532 - Dual 0.25mA RRO Fully-Differential Amplifier | TI
The THS4532 is a dual, ultra-low-power, rail-to-rail output (RRO) fully-differential amplifier from Texas Instruments, designed for low-power data acquisition systems and high-density applications where power consumption and dissipation are critical. It operates over a supply range of 2.5V to 5.5V and draws only 250µA per channel, making it ideal for battery-powered and portable instrumentation. The device features an input common-mode range that extends below the negative rail, enabling single-supply operation with ground-referenced inputs. The THS4532 is available in a 16-pin TSSOP package (PW) and is characterized for operation over the extended industrial temperature range of -40°C to +125°C. A fully-differential amplifier (FDA) is an operational amplifier with differential inputs and differential outputs, providing both the signal and its complement. This architecture inherently rejects common-mode noise and even-order harmonics, making FDAs essential in high-resolution ADC driving, balanced signal transmission, and precision analog front-ends. The THS4532 belongs to the class of low-power FDAs, which are a subset of differential amplifiers, which in turn fall under the broader category of operational amplifiers and linear integrated circuits. Its rail-to-rail output stage maximizes dynamic range in low-voltage systems, while the input common-mode range below the negative rail simplifies single-supply designs. Key features of the THS4532 include ultra-low power consumption of 0.25mA per channel, rail-to-rail output swing, and an input common-mode range that includes the negative rail. The device also offers a wide supply range of 2.5V to 5.5V, making it compatible with 3.3V and 5V systems. The THS4532 is fully specified for operation over -40°C to +125°C, ensuring reliable performance in industrial environments. Its low power and small footprint make it suitable for high-density multichannel data acquisition systems. From a technical perspective, the THS4532 uses a precision CMOS architecture that achieves low offset and drift while maintaining ultra-low quiescent current. The differential output stage provides a balanced signal that can directly drive high-resolution SAR ADCs, such as the ADS8887, without the need for an external transformer. The device's common-mode feedback loop allows the user to set the output common-mode voltage independently, which is critical for matching the ADC's input range. The THS4532 also features internal compensation, simplifying the external component count. Typical applications include driving high-resolution ADCs in portable medical devices, battery-powered industrial sensors, and low-power audio processing. Its low power consumption extends battery life in wearable monitors and wireless sensor nodes. The THS4532 is also used in single-ended to differential conversion for precision measurement systems, where its low noise and high linearity preserve signal integrity. When designing with the THS4532, ensure proper power supply decoupling with 0.1µF capacitors close to the V+ and V- pins. The output common-mode voltage should be set to the ADC's reference midpoint to maximize dynamic range. For optimal noise performance, use metal-film resistors in the feedback network and keep the feedback paths short.
THS4551IRGTR - 150MHz Fully Diff Amp | Texas Instruments
The Texas Instruments THS4551IRGTR is a low-noise, precision, 150 MHz fully differential amplifier (FDA) housed in a 16-pin VQFN (RGT) package with exposed thermal pad. It offers a -3 dB bandwidth of 150 MHz (G = 1 V/V), 1.5 nV/√Hz input voltage noise density, and rail-to-rail output swing that simplifies ADC driver designs in space-constrained systems. A fully differential amplifier is an op-amp topology that converts a single-ended or differential input signal into a balanced differential output centered around a settable common-mode voltage. FDAs sit in the signal chain between sensor/transducer signal conditioning and high-speed, high-resolution analog-to-digital converters (ADCs). They reject common-mode noise and even-order harmonics, drive differential ADCs cleanly, and enable DC-coupled paths through SAR or delta-sigma converters - placing them in the broader hierarchy of operational amplifier -> amplifier IC -> analog signal chain -> semiconductor. Key features include 150 MHz small-signal bandwidth, 50 V/µs slew rate, 1.5 nV/√Hz voltage noise, 100 dB DC open-loop gain, and a 2.7 V to 5.4 V single-supply operating range. The integrated VOCM pin sets the output common-mode voltage independently of the input, simplifying interface to ADCs with 0.5 V to 2.5 V common-mode requirements. Internal common-mode feedback preserves output balance across frequency, eliminating the need for precision matched external resistors. Architecturally the device combines a precision input stage with a class-AB output stage capable of driving 2 VPP into 200 Ω differential loads (typical for 16-bit ADCs). The 1.5 nV/√Hz noise floor makes it suitable for 16-bit ADC reference designs, and the wide bandwidth handles 18-bit SAR converters sampling above 1 MSPS. Typical applications include 16-bit to 20-bit ADC drivers, precision instrumentation front-ends, transducer signal chains, and active filters. The single-ended-to-differential conversion is ideal for driving AD7768, ADS131A04, and similar precision SAR converters in measurement equipment. When designing with this part, use a feedback resistor network that sets the desired gain and a VOCM bypass capacitor of 0.1 µF for noise decoupling. Verify output common-mode voltage tracks VOCM input over frequency to avoid ADC distortion. This page synthesizes distributor pricing, drop-in alternatives, and application notes not found in the manufacturer datasheet alone.
THS4551IRGTT - 150MHz Low-Noise Fully Diff Amplifier | Texas Instruments
The Texas Instruments THS4551IRGTT is a low-noise, precision, 150-MHz, fully differential amplifier (FDA) housed in a 16-pin VQFN (RGT) package with exposed thermal pad, optimized for driving high-speed, differential-input ADCs in industrial, instrumentation, and communications signal chains. It delivers 150 MHz of unity-gain bandwidth, 50 ns settling time to 0.1%, 200 V/us slew rate, and -100 dB low total harmonic distortion plus noise (THD+N) at 2 VPP and 100 kHz, while operating from a single 2.7 V to 5.4 V supply with rail-to-rail output swing. Its wideband architecture combines precision DC trim with a low input-referred voltage noise of 3.3 nV/sqrt(Hz) and an integrated output common-mode control loop that tightly regulates the output common-mode voltage set by the VOCM pin, eliminating the need for external precision resistor matching on the feedback network. A fully differential amplifier (FDA) is a specialized op-amp topology that converts a single-ended or differential input signal into a balanced differential output, where each output swings symmetrically around a programmable common-mode voltage. FDAs sit at the boundary between the analog front end (sensor/transducer) and the differential input stage of a high-speed ADC, and they are essential for maximizing spurious-free dynamic range (SFDR) and signal-to-noise ratio (SNR) in modern data-acquisition chains. Compared to a single-ended op-amp, an FDA inherently rejects common-mode noise from the analog supply, suppresses even-order harmonics, and directly interfaces with differential ADCs without lossy transformer coupling. Key features of the THS4551IRGTT include a wide 2.7 V to 5.4 V single-supply operating range, a flexible output common-mode control input (VOCM) that supports direct DC coupling to the ADC common-mode voltage, low input bias current, integrated shutdown bias current control, and 8 kV HBM ESD protection. The device is characterized for operation across the industrial -40C to +125C temperature range and is fabricated in TI's proprietary high-speed complementary BiCMOS process. The 3x3 mm VQFN package exposes the thermal pad to a top-side copper pour, allowing continuous full-bandwidth operation at 5 V without exceeding the 175C junction limit. Typical applications of the THS4551IRGTT include driving successive-approximation register (SAR) and delta-sigma ADCs in industrial process control, test and measurement data acquisition, high-density medical imaging front ends, and broadband communications baseband signal chains. Its low noise and high linearity also make it suitable for active balun replacement, audio line drivers, and I/Q modulator interface networks in software-defined radio (SDR) systems. When designing with this device, place the input and feedback network components as close to the IC pins as possible and follow the datasheet differential-input filter recommendations to preserve bandwidth and maximize SFDR; a small mismatch in the feedback resistors will degrade the common-mode rejection ratio (CMRR) at the frequency of interest, so 0.1% tolerance parts are recommended. This page synthesizes distributor pricing, parametric drop-in alternatives, application-specific design notes, and pinout guidance not consolidated on the manufacturer datasheet front page.