TS972ID - 12 MHz Dual Rail-to-Rail Low-Noise Op Amp | STMicroelectronics
料号： TS972ID ✗ 停产TS972ID 概述
An operational amplifier, or op amp, is a high-gain differential amplifier whose feedback network determines its closed-loop behavior. Within the integrated-circuit hierarchy, the TS972ID belongs to the operational-amplifier class, amplifier IC category, and broader analog and mixed-signal semiconductor family. Rail-to-rail output capability lets its output approach the supply rails more closely than a conventional amplifier, improving usable output swing in compact low-voltage systems.
The TS972ID combines three defining benefits: 12 MHz gain-bandwidth product for moderate-frequency amplification, 4 V/us slew rate for faster signal transitions, and 4 nV/Hz input-voltage noise for low-noise operation. A 0.003% distortion figure further supports high-fidelity signal paths. The dual configuration provides two amplifiers in one 8-pin SOIC, reducing board area compared with two separate single-channel packages.
Its low-voltage operating range and rail-to-rail output architecture suit systems that cannot tolerate the headroom required by conventional amplifiers. The 2.7 V to 10 V supply specification permits operation from a single 3.3 V rail, dual ±2.5 V rails, or other compatible supplies. The manufacturer description specifically identifies portable and battery-powered equipment as suitable markets, while the noise and distortion specifications make audio preamplification a natural fit.
Typical uses include portable audio preamplifiers, low-noise sensor conditioning, microphone stages, active filters, and buffered sensor outputs. Two amplifiers in one package can implement dual signal channels, instrumentation front ends, or complementary gain stages when their independent inputs and outputs are required. Care is still necessary when driving capacitive loads, observing output-current limits, and controlling stability around the amplifier and feedback network.
The primary design consideration is stable implementation of the intended gain. Input and feedback resistances should be selected consistently with the 12 MHz bandwidth and noise target, while board layout should minimize parasitic capacitance and feedback-loop coupling. Decoupling capacitors should be placed close to the supply pins, and unused amplifier channels should be configured according to the manufacturer guidance rather than left floating.
This page consolidates the verified TS972ID operating limits, source references, and same-family alternatives with practical selection and layout guidance. It distinguishes documented facts from parameters requiring confirmation, making the result more useful for PCB compatibility reviews, sourcing, and amplifier design decisions.
直接替换替代料： TS972ID ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
TS972IDT
✅ 直接替换📋 参考替代料（不在目录中）
TS972IPT
✅ 直接替换📋 参考替代料（不在目录中）
TS972IQT
✅ 直接替换📋 参考替代料（不在目录中）
TS972ID 最大额定值与电气特性
| Amplifier Type | Dual operational amplifier |
| Number of Amplifiers | 2 circuits |
| 输出类型 | Rail-to-rail |
| Gain-Bandwidth Product | 12 MHz |
| Slew Rate | 4 V/us |
| Input Voltage Noise Density | 4 nV/Hz |
| Total Harmonic Distortion | 0.003% |
| Single-Supply Operating Voltage | 2.7 V to 10 V |
| Minimum Supply Voltage | ±1.35 V |
| Maximum Supply Voltage | 10 V |
| 封装 | 8-pin SOIC |
| 安装类型 | Surface Mount |
| ESD Protection | 2 kV |
| Latch-Up Immunity | Class A |
TS972ID 8-pin soic 引脚配置指南
TS972ID（8-pin soic 封装）的引脚配置。 该模拟元件具有输入、输出和电源引脚。请参阅制造商数据手册以了解失调调零、补偿和使能引脚配置。适用于信号调理和放大器电路。
暂无详细引脚数据： TS972ID.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TS972ID 适用于 6 应用s: Portable Audio Preamplifier, Battery-Powered Sensor Conditioning, Microphone and Low-Level Signal Front End, Active Audio Filter, Buffered Instrumentation Input, Low-Noise Power and Control Signal Conditioning.
Portable Audio Preamplifier
The TS972ID fits portable audio preamplification because its 4 nV/Hz input-voltage noise density and 0.003% distortion support low-level signal amplification without adding substantial broadband noise. The dual 12 MHz amplifier can process stereo or two sequential audio channels, while the 4 V/us slew rate preserves low-frequency and midband transients. Operating from 2.7 V to 10 V also permits use in battery-powered equipment. Designers should keep the feedback network close to the device, maintain the documented output-swing limits, and verify the actual load impedance because the supplied excerpts do not specify maximum output current.
推荐
Battery-Powered Sensor Conditioning
The TS972ID is suitable for conditioning sensor outputs in battery-powered systems because it operates from a single 2.7 V to 10 V supply and provides rail-to-rail output swing. Its 12 MHz gain-bandwidth product can accommodate higher-bandwidth sensors and measurement chains, while 4 nV/Hz noise is beneficial when the source impedance is moderate. Place the amplifier close to the sensor or connector, keep high-impedance sensor paths short, and confirm the input bias-current and common-mode limits from the complete datasheet. Those two parameters are not present in the supplied excerpts and must be checked before selecting a high-impedance source.
推荐
Microphone and Low-Level Signal Front End
The TS972ID can serve as a microphone or low-level signal front end where low voltage noise and low distortion are more important than maximum open-loop gain. Its 4 nV/Hz noise density supports small-signal amplification, and the 4 V/us slew rate avoids slew-rate limiting on many audio-band waveforms. The dual arrangement allows closely related channels to share one package, reducing board area. Input and feedback resistors should be sized against the 12 MHz bandwidth and output-load capability. Because the supplied data does not specify input bias current or the exact noise integration bandwidth, those values must be confirmed before finalizing microphone-bias and source-impedance calculations.
推荐
Active Audio Filter
The TS972ID is appropriate for active filtering of audio-band or wider-band signals because it combines a 12 MHz gain-bandwidth product with a 4 V/us slew rate. These specifications support closed-loop gains and crossover frequencies that remain well below the unity-gain bandwidth, while the 0.003% distortion specification favors low-amplitude signal paths. The two amplifiers can implement a second-order or higher-order filter when the required topology permits. Select feedback and balancing resistors to maintain the intended gain and bandwidth, check op-amp stability with the selected noise-gain network, and verify output swing and load behavior in the complete datasheet before volume production.
推荐
Buffered Instrumentation Input
The TS972ID can buffer a moderate-impedance instrumentation signal while preserving signal quality through its 4 nV/Hz noise density and low distortion. Its 12 MHz bandwidth gives adequate loop gain for many moderate-frequency closed-loop stages, and the dual package can provide separate buffering or gain channels. For practical instrumentation designs, use short guarded input traces, place the amplifier close to the connector or sensor, and reference the input and output grounds carefully. Input bias current, offset voltage, and common-mode range remain essential checks for source selection because these parameters were not included in the verified excerpts.
推荐
Low-Noise Power and Control Signal Conditioning
The TS972ID can condition low-level control or feedback signals in industrial and power-control systems where its 4 nV/Hz noise density and rail-to-rail output provide useful flexibility. The 2.7 V minimum single-supply voltage supports compact control boards, while the 4 V/us slew rate allows the amplifier to follow moderately fast command waveforms. Use the second channel for sensing or buffered reference signals when appropriate. Decoupling capacitors must be placed directly beside the supply pins, the feedback loop should remain compact, and output loading must remain within the manufacturer limits. Verify the absolute maximum and supply ratings in the complete TS972ID documentation before connecting to externally driven nodes.
推荐
推荐产品汇总
工程参考数据： TS972ID ——对比、设计指导和合规信息。
选型指南
与替代料对比
| 参数 | 本产品 | TS972IDT | TS972IPT | TS972IQT |
|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 8-pin SOIC | 8-pin SOIC - same | 8-pin SOIC - same | 8-pin SOIC - same |
| Amplifier Configuration | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier | Dual operational amplifier |
| Gain-Bandwidth Product | 12 MHz | 12 MHz | 12 MHz | 12 MHz |
| Slew Rate | 4 V/us | 4 V/us | 4 V/us | 4 V/us |
| Supply Voltage Range | 2.7 V to 10 V | 2.7 V to 10 V | 2.7 V to 10 V | 2.7 V to 10 V |
| Output Architecture | Rail-to-rail | Rail-to-rail | Rail-to-rail | Rail-to-rail |
| Input Voltage Noise Density | 4 nV/Hz | 4 nV/Hz | 4 nV/Hz | 4 nV/Hz |
| Distortion | 0.003% | 0.003% | 0.003% | 0.003% |
关键差异点
- Low-noise dual amplifier in an 8-pin SOIC （对比 TS972IDT)
- Rail-to-rail output from a 2.7 V minimum supply （对比 TS972IPT)
- Low distortion for low-level signal paths （对比 TS972IQT)
设计说明
Place the input, output, feedback, and supply-decoupling connections directly around the TS972ID rather than routing high-impedance inputs through long PCB traces. The verified 4 nV/Hz noise specification makes the device appropriate for low-noise amplification, but PCB leakage and thermal gradients can still dominate the result when source impedance is high. Keep the feedback loop compact, avoid routing input and output paths in parallel, and use a quiet ground reference for the analog section.
The TS972ID operates from 2.7 V to 10 V, so verify that the selected rail remains within that range during startup, shutdown, and fault conditions. Place the supply bypass capacitor next to the supply pins and provide the decoupling arrangement required by the complete manufacturer datasheet. Because the supplied data does not state supply current or output-current limits, do not calculate loading capability or thermal performance from the TS972ID package data until those values are confirmed.
Do not assume that the complete TS972ID suffix is interchangeable with every TS972 order code. The verified comparison distinguishes obsolete TS972ID from active TS972IDT, while other TS972 suffix combinations appear in comparison results. Confirm the package, temperature grade, qualification, marking, delivery option, and electrical limits against the current manufacturer datasheet. For legacy production, also request date-code, traceability, and change-control information from the distributor.
合规信息
The supplied excerpts do not explicitly state RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals status. Compliance must be confirmed using the current STMicroelectronics product documentation and the applicable manufacturer declaration.