TS972IQT - Dual 12MHz Low-Noise Op Amp | STMicroelectronics
料号： TS972IQT ✓ 量产中TS972IQT 概述
An operational amplifier is a high-gain analog building block used to amplify small voltage signals, buffer sensors, perform active filtering, and provide feedback control. The TS972 belongs to the operational-amplifier hierarchy, which includes general-purpose amplifiers, rail-to-rail input/output amplifiers, and low-noise instrumentation amplifiers. Its dual-channel configuration reduces the component count in stereo, differential, and multi-signal circuits while preserving matched performance within one package.
The principal features of the TS972IQT include two amplifier channels, rail-to-rail output operation, low-noise performance suitable for audio preamplification, and a 12 MHz gain-bandwidth product. The 2.7 V minimum operating voltage makes it suitable for low-energy systems powered from a single lithium-cell range or a regulated 3.3 V rail. The small 8-DFN package also allows placement close to analog sensors, reducing sensitive-signal trace length and conserving board area.
Its 12 MHz bandwidth is particularly useful when moderate-frequency closed-loop gain is required for audio buffers, active filters, and sensor interfaces. Low noise and low distortion characteristics make the amplifier appropriate for portable and battery-supplied equipment. Because the device is not limited to a high-voltage industrial rail, designers can use one amplifier family across 3 V, 3.3 V, and 5 V systems without changing the package footprint.
Typical applications include microphone and line-level audio preamplification, low-voltage sensor conditioning, precision current-to-voltage conversion, active filters, and portable measurement equipment. Two independent channels can also implement differential buffering, dual-axis sensor interfaces, or stereo signal paths. The exposed-pad package can improve heat dissipation when either amplifier operates near its output-current limit, although normal signal operation generally produces modest dissipation.
When laying out a board, place input and output decoupling close to the appropriate device pins and keep sensitive input traces away from switching nodes and high-current return paths. Verify the operating voltage, output swing, load, and stability requirements against the actual signal amplitude and frequency. The manufacturer datasheet should be used for the complete pin description, electrical limits, exposed-pad connection, and recommended layout.
This product page combines the exact catalog identity, verified distributor references, application guidance, and drop-in replacement analysis for engineers evaluating the TS972IQT. It also identifies where an equivalent package and electrical match can be confirmed, helping design teams avoid assuming that a similar amplifier is electrically or mechanically interchangeable.
直接替换替代料： TS972IQT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
本系列中的变体
可与以下型号直接替换的同系列型号： TS972IQT （相同外形与封装尺寸） ——差异在于 Amplifier Type, Package.
TS972IYPT
✅ 直接替换📋 参考替代料（不在目录中）
TS972IQT 最大额定值与电气特性
| Amplifier Type | General-purpose operational amplifier |
| Number of Channels | 2 channels |
| Gain-Bandwidth Product | 12 MHz |
| Supply Voltage Range | 2.7 V to 10 V |
| Rail-to-Rail Output | Yes |
| Low-Noise Architecture | Very low noise |
| Low-Power Operation | Low power |
| 封装 | 8-DFN, 3 x 3 mm |
| 引脚数量 | 8 pins |
| 安装类型 | Surface mount |
| 输出类型 | Rail-to-rail |
TS972IQT 8-dfn, 3 x 3 mm 引脚配置指南
TS972IQT（8-dfn, 3 x 3 mm 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： TS972IQT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TS972IQT 适用于 6 应用s: Portable Audio Preamplification, Low-Voltage Sensor Conditioning, Precision Current-to-Voltage Conversion, Active Audio Filtering, Portable Test and Measurement, Industrial Control Signal Interface.
Portable Audio Preamplification
The TS972IQT fits stereo and dual-channel audio preamplification because it combines two very-low-noise amplifier circuits with a 12 MHz gain-bandwidth product in a compact 8-DFN package. The two channels can process left and right inputs while preserving low distortion through the signal path. Its 2.7 V to 10 V supply range supports portable and battery-operated equipment operated from a regulated 3 V or 3.3 V rail. Place the device close to the audio input stage, keep input traces short, and confirm the required gain, output swing, and load against the manufacturer limits.
推荐
Low-Voltage Sensor Conditioning
The TS972IQT is suitable for conditioning low-level sensor signals in compact 3 V and 3.3 V systems because each channel provides a 12 MHz gain-bandwidth product while the dual package limits board area. The amplifier can buffer a sensor, implement an active gain stage, or form part of a low-pass filter when its noise and stability characteristics suit the operating frequency. Keep sensitive input routing away from switching converters and motor returns, and use the manufacturer input common-mode limits to establish the usable signal range.
推荐
Precision Current-to-Voltage Conversion
The TS972IQT can implement a dual-channel current-to-voltage conversion stage around a matched feedback resistor, with its 12 MHz bandwidth providing margin above the bandwidth of many moderate-speed current measurements. Its low-noise architecture helps preserve small sensor currents during amplification, while rail-to-rail output increases the usable measurement range within a compact 3.3 V system. The input and feedback network must be selected for the target transimpedance, and the complete circuit must be checked for stability, common-mode limits, and output saturation.
推荐
Active Audio Filtering
The TS972IQT is appropriate for active filtering around audio and communication signals because its 12 MHz gain-bandwidth product is substantially higher than that of a basic low-frequency op amp. Two channels can implement a stereo filter or separate filters for different channels, reducing component count and helping maintain matched behavior. Select resistor and capacitor values against the device gain-bandwidth and noise characteristics, and verify stability with the actual source and load impedances rather than relying only on nominal bandwidth.
推荐
Portable Test and Measurement
The TS972IQT suits portable measurement equipment that needs two low-noise analog channels in a compact footprint. One channel can buffer the input under test while the other handles a reference, monitor, or auxiliary signal, and the 12 MHz bandwidth supports more demanding signal conditioning than a precision-only amplifier. Its 3.3 V-compatible operation reduces system complexity, while the 8-DFN package preserves space for display, controls, and isolated measurement circuitry. Validate offset, noise, common-mode range, and output drive for the selected gain configuration.
推荐
Industrial Control Signal Interface
The dual TS972IQT can interface low-voltage control signals to a controller or condition sensor outputs in compact industrial equipment. Its rail-to-rail output improves utilization of a 3.3 V or 5 V signal range, and the 12 MHz gain-bandwidth product provides useful bandwidth for moderately fast control and monitoring signals. The two channels can process related inputs or form a differential receiver when appropriately configured. Confirm industrial temperature requirements, input common-mode behavior, and grounding before using the device in safety-critical or long-lived installations.
推荐
推荐产品汇总
工程参考数据： TS972IQT ——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 | TS972IYPT |
|---|---|---|
| Package | 8-DFN (3 x 3 mm) | 8-DFN (3 x 3 mm) |
| Brand | STMicroelectronics | STMicroelectronics |
| Amplifier Channels | 2 | 2 |
| Gain-Bandwidth Product | 12 MHz | 12 MHz family class |
| Supply Voltage Range | 2.7 V to 10 V | 2.7 V to 10 V family class |
| Rail-to-Rail Output | Yes | Yes |
| Noise Characteristic | Very low noise | Very low noise |
| Power Class | Low power | Low power |
| Mounting Type | Surface mount | Surface mount |
| Price Tier | Request a Quote | Request a Quote |
关键差异点
- Two low-noise channels in a compact package （对比 TS972IYPT)
- Rail-to-rail output improves low-voltage signal utilization （对比 TS972IYPT)
- Low-noise operation for audio and sensor paths （对比 TS972IYPT)
设计说明
Route each amplifier input directly to its device pin and keep the loop around the input and feedback components as small as practical. Place bypass and decoupling capacitors close to the supply pins, with their return paths using the quietest available ground reference. The 3 x 3 mm DFN package leaves little room for long escape routing, so assign pins and the exposed-pad connection before finalizing the surrounding schematic.
Use short, continuous ground references for both input and output paths, particularly when the TS972IQT is processing microphone, sensor, or high-impedance signals. Keep the device away from switching-node copper and high-current return paths. Verify common-mode voltage and output swing in the actual system because rail-to-rail output does not imply that the input accepts every voltage across the full supply range.
Follow the manufacturer guidance for the DFN exposed pad, including its PCB land pattern and thermal-via arrangement. Although normal low-voltage signal operation usually creates limited heat, a sustained output load or accidental output saturation can increase dissipation. Check the output-current limit, operating temperature, and ambient conditions before treating the small package as having unlimited thermal capacity.
Do not substitute the TS972 solely because another TS97x member uses a similar amplifier topology. Confirm the exact package, pinout, exposed-pad treatment, supply limits, temperature grade, input offset, noise, bandwidth, and stability requirements. Likewise, verify that rail-to-rail output satisfies the signal swing requirement; a low-noise amplifier can still become nonlinear if the output approaches its allowed range.
合规信息
No explicit product-specific compliance statement appears in the cited catalog references. The TS972IQT is a general-purpose operational amplifier rather than an automotive-qualified device.
