TS974IDT - 12 MHz Quad Rail-to-Rail Op Amp | ST
N.º da peça: TS974IDT ✓ AtivoTS974IDT Visão geral
An operational amplifier is an analog integrated circuit that uses high-gain feedback to amplify voltage differences. The TS974 belongs to the operational-amplifier hierarchy, which sits within amplifier ICs and analog signal-processing semiconductors. Rail-to-rail output operation allows the output to approach the available supply rails, while low-noise amplification preserves small signals in audio, instrumentation, sensor, and control systems.
The TS974IDT combines four amplifiers in one package. Key characteristics include 4 nV/Hz noise density, 0.003% distortion, 12 MHz bandwidth, and 4 V/us slew rate. These figures support high-frequency signal amplification with relatively low added noise. The device also includes 2 kV ESD protection and Class A latch-up immunity, improving practical robustness in sensitive analog applications.
Its architecture is optimized for low-noise and low-distortion operation. The 12 MHz bandwidth provides adequate response for audio preamplification and general instrumentation, while the 4 V/us slew rate helps preserve large-signal fidelity. The rail-to-rail output topology reduces output-voltage headroom concerns, although designers must still evaluate input common-mode range, output swing, supply voltage, stability, and output loading against the manufacturer specifications.
Typical uses include low-noise audio preamplification, portable and battery-powered instrumentation, sensor signal conditioning, industrial measurement systems, and general-purpose analog signal processing. The four-amplifier configuration reduces board area when several independent channels are required. It is particularly useful where four similar low-noise channels must operate within one compact package.
Designers should place input and output compensation or decoupling components according to the recommended application circuit, maintain the required input and output common-mode range, and verify stability with the intended source and load impedances. The low-noise performance does not remove the need for careful grounding, short PCB traces, and clean supply routing.
This page combines the principal TS974IDT operating characteristics, practical application guidance, package information, and verified replacement relationships. It also highlights design constraints and selection trade-offs that help engineers determine whether the device is appropriate before committing it to a new PCB layout.
Alternativas drop-in para TS974IDT — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TS974IDT (mesmo formato e footprint) — diferindo em Amplifier Type, Package, Slew Rate.
TS974ID
✅ Drop-In✓ Em estoque
$1.2305 / unidade
Ver ficha técnica →TS974IPT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TS974IYDT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TS974CDT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TS974MDT
✅ Drop-In ⚠️ Especificações não verificadas📋 Alternativa de referência (fora do catálogo)
TS974IDT Classificações máximas e características elétricas
| Amplifier Type | General-purpose operational amplifier |
| Number of Circuits | 4 circuits |
| Rail-to-Rail Output | Yes |
| Gain-Bandwidth Product | 12 MHz |
| Slew Rate | 4 V/us |
| Densidade de ruído | 4 nV/Hz |
| Total Harmonic Distortion | 0.003% |
| Minimum Operating Supply | ±1.35 V |
| Maximum Operating Supply | 10 V |
| ESD Protection | 2 kV |
| Latch-Up Immunity | Class A |
| Encapsulamento | 14-pin SO package |
| Tipo de montagem | Surface mount |
| Product Classification | Instrumentation, operational amplifier, buffer amplifier |
Guia de Configuração de Pinos do TS974IDT 14-pin so package
Configuração de pinos para TS974IDT (pacote 14-pin so package). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para TS974IDT.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TS974IDT é adequado para 6 aplicaçãos: Low-Noise Audio Preamplification, Battery-Powered Sensor Conditioning, Industrial Instrumentation, Precision Measurement Interfaces, Audio and Communication Front Ends, General-Purpose Analog Signal Processing.
Low-Noise Audio Preamplification
The TS974IDT is appropriate for low-level audio preamplification because its 4 nV/Hz noise density preserves weak signals while the 0.003% distortion specification supports low added harmonic content. A 12 MHz gain-bandwidth product provides more bandwidth than many conventional audio stages require, and the 4 V/us slew rate allows larger transitions without excessive distortion. Place one of the four amplifiers in the input path, provide local supply bypassing, and connect compensation and biasing components according to the manufacturer application circuit. The rail-to-rail output is useful in portable equipment where available signal swing is limited, although output loading and stable operation must be verified for the selected gain and feedback network.
Recomendado
Battery-Powered Sensor Conditioning
The TS974IDT suits battery-powered sensor conditioning because the TS97x family operates with supply voltages as low as ±1.35 V, while its rail-to-rail output swing maximizes usable signal range in compact systems. The 4 nV/Hz noise density is valuable when conditioning low-level sensor outputs, and four amplifiers can process multiple channels without requiring four separate packages. Connect each amplifier as a voltage follower or gain stage, maintain a short return path to the sensor ground, and bypass the supply close to the package. Verify that the input common-mode range covers the sensor’s full output swing at startup and across battery discharge, because low supply voltage alone does not guarantee unrestricted input operation.
Recomendado
Industrial Instrumentation
The TS974IDT can support industrial instrumentation stages requiring low noise, moderate bandwidth, and several channels in a limited board area. Its 12 MHz gain-bandwidth product allows useful closed-loop response above the bandwidth of many general-purpose precision amplifiers, while the 4 V/us slew rate improves large-signal behavior. Use the four channels for related functions such as sensor buffers, active filters, or gain stages, keeping sensitive paths away from switching nodes and high-current return paths. Confirm the exact temperature grade for the operating environment and evaluate the circuit against input common-mode limits, output swing, noise, and stability with realistic source and load impedances.
Recomendado
Precision Measurement Interfaces
For precision measurement interfaces, the TS974IDT combines 4 nV/Hz noise density with a 12 MHz gain-bandwidth product, allowing small sensor signals to be amplified with less added noise and adequate closed-loop bandwidth. The four-channel arrangement is useful in multi-sensor systems, quadrature channels, or test-fixture conditioning where channel count affects board size. Follow the manufacturer’s recommended feedback and compensation arrangement to preserve stability, and evaluate source impedance carefully because very high source resistance can degrade noise performance. Keep the signal ground and supply return paths short, use a quiet local supply bypass, and avoid routing inputs near clocks, power converters, and digital switching edges.
Recomendado
Audio and Communication Front Ends
The TS974IDT can serve in audio and communication front ends where low noise, rail-to-rail output, and modest high-frequency capability are useful. Its 4 nV/Hz noise density benefits low-amplitude receive or preamplifier nodes, while 12 MHz bandwidth and 4 V/us slew rate provide response beyond baseband audio. The four independent channels can support multiple baseband paths or mixed signal-conditioning functions. Confirm the minimum supply and input common-mode limits, and provide the output load required by the following stage without driving the amplifier into nonlinear operation. A clean reference return and short input traces remain essential because low intrinsic noise cannot compensate for ground bounce or coupled interference entering the signal path.
Recomendado
General-Purpose Analog Signal Processing
The TS974IDT is a versatile choice for general-purpose analog signal processing because each package contains four rail-to-rail amplifiers with 12 MHz bandwidth and 4 V/us slew rate. These channels can implement voltage followers, non-inverting gain stages, active filters, comparators, and cross-coupled analog functions, subject to the detailed operating limits. Choose stable feedback values and suitable output loading for each topology, and confirm the input and output ranges across temperature. The low 4 nV/Hz noise density is especially beneficial in high-gain stages, but layout quality remains decisive. Separate sensitive inputs from switching-current paths and connect the package ground to a low-impedance return rather than a long branch through the ground plane.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TS974IDT — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | TS974ID | TS974IPT | TS974IYDT | TS974CDT | TS974MDT |
|---|---|---|---|---|---|---|
| Package | 14-pin SO | 14-pin SO | 14-pin SO | 14-pin SO | 14-pin SO | 14-pin SO |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Amplifier Count | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits |
| Gain-Bandwidth Product | 12 MHz | 12 MHz | 12 MHz | 12 MHz | 12 MHz | 12 MHz |
| Slew Rate | 4 V/us | 4 V/us | 4 V/us | 4 V/us | 4 V/us | 4 V/us |
| Noise Density | 4 nV/Hz | 4 nV/Hz | 4 nV/Hz | 4 nV/Hz | 4 nV/Hz | 4 nV/Hz |
| Distortion | 0.003% | 0.003% | 0.003% | 0.003% | 0.003% | 0.003% |
| Minimum Family Operating Supply | ±1.35 V | ±1.35 V | ±1.35 V | ±1.35 V | ±1.35 V | ±1.35 V |
| Rail-to-Rail Output | Yes | Yes | Yes | Yes | Yes | Yes |
Principais diferenciais
- Combines four low-noise amplifiers with high small-signal bandwidth (vs TL064CD)
- Rail-to-rail output operation supports wider signal swing (vs TS974ID)
- Automotive-qualified family option preserves the same core performance (vs TS974IPT)
- Four-channel integration reduces board footprint for multichannel analog designs (vs LM224ADR)
Notas de projeto
Place the input and output components associated with the selected feedback network close to their associated TS974IDT pins. Sensitive input routes should be short, surrounded by a stable ground reference where appropriate, and kept away from switching nodes and high-current return paths. Connect the package ground to a low-impedance plane rather than routing ground through a narrow branch. For four-channel designs, keep the analog signal paths separated from digital and power-converter areas to reduce coupled noise.
Do not assume that rail-to-rail output operation guarantees an unrestricted input common-mode range. Check the manufacturer input common-mode limits for the selected supply voltage, and verify the required output swing at the actual load. High source impedance can also increase noise and upset feedback stability. Use the recommended compensation arrangement for the selected gain, and evaluate the completed circuit with the intended source resistance and capacitive load.
The TS974IDT’s 4 nV/Hz noise density only benefits the design when board-level interference is controlled. Use a quiet local supply bypass, maintain a compact supply-and-return loop, and avoid running sensitive inputs beneath or parallel to switching-current paths. If the design includes high-speed digital logic or a dc-dc converter, establish quiet-zone boundaries and keep the analog return current within the regulator’s capacitor loop. Validate noise and distortion with the complete power subsystem operating under load.
Informações de conformidade
The TS974IDT is an analog operational amplifier; AEC-Q100 qualification is not stated for the base ordering code. Compliance attributes for the exact orderable part require confirmation from the manufacturer.
