TS952IPT - Dual Low-Power Rail-to-Rail Amplifier | ST
料号： TS952IPT ✓ 量产中TS952IPT 概述
An operational amplifier is a high-gain analog signal-processing component that compares its differential input with a feedback-defined reference and amplifies the resulting error. The TS952IPT belongs to the rail-to-rail input/output amplifier class, allowing its input and output stages to operate close to the supply rails. This makes it useful in portable instruments, sensor interfaces, battery-powered equipment, and low-voltage industrial control systems where signal headroom is limited.
Key characteristics include a low 35 nA input bias current, which reduces loading on high-impedance sources, and a 3 MHz gain-bandwidth product that supports moderate-speed signal paths. Its 1 V/us slew rate improves large-signal response, while rail-to-rail input and output stages increase usable signal range in single-supply systems. The dual configuration also reduces board area by integrating two amplifiers into one package.
The TS952IPT uses a low-power BiCMOS operational-amplifier architecture. The architecture combines bipolar input behavior with CMOS-compatible output drive and low-power operation. In practical circuits, input common-mode range, output swing, output-current capability, noise, and stability with the selected feedback network determine whether it is suitable for a particular precision or signal-conditioning stage.
Typical applications include low-voltage sensor amplification, photodiode-biased readout stages, portable measurement equipment, audio signal conditioning, general-purpose buffer circuits, and industrial control interfaces. The 3 V and 5 V operating environments align the device with battery-powered products, data-acquisition modules, embedded systems, and compact instrumentation.
When designing a PCB around the TS952IPT, follow the manufacturer datasheet for decoupling, exposed pad or thermal guidance, input capacitance, and output-load limitations. Place the input and output bypass capacitors close to their associated pins, maintain short feedback paths, and verify stability with the actual source impedance and capacitive load.
This product page combines the TS952IPT technical characteristics, sourcing information, package guidance, practical application notes, and replacement analysis. It is designed to help engineers identify the correct low-power amplifier and plan a robust implementation without changing the established 8-pin TSSOP footprint.
直接替换替代料： TS952IPT ——相同封装，引脚兼容。需要 PCB 改动的不同封装料号已排除。
该产品暂无直接替换替代料。
请求替代料TS952IPT 最大额定值与电气特性
| Amplifier Channel Count | 2 channels |
| Product Type | Dual low-power operational amplifier |
| Input Common-Mode Range | Rail-to-rail input |
| Output Swing | Rail-to-rail output |
| Input Bias Current | 35 nA |
| Slew Rate | 1 V/us |
| Gain-Bandwidth Product | 3 MHz |
| Input Offset Voltage | 6 mV |
| Supported System Supply | 3 V to 5 V |
| Architecture | BiCMOS |
| 封装 | 8-pin TSSOP |
| 安装类型 | Surface mount |
TS952IPT 8-pin tssop 引脚配置指南
TS952IPT（8-pin tssop 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： TS952IPT.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TS952IPT 适用于 6 应用s: Low-Power Sensor Signal Conditioning, Battery-Powered Measurement Equipment, Industrial Control and Data Acquisition, Audio and Communication Buffering, Photodiode and Optical Front Ends, General-Purpose Embedded Interface.
Low-Power Sensor Signal Conditioning
The TS952IPT fits high-impedance sensor interfaces because its 35 nA input bias current reduces the DC loading applied to the sensing element. Two amplifiers can condition bipolar or single-ended signals without moving to a larger package. Its 3 MHz gain-bandwidth product supports moderate-frequency instrumentation, while the 1 V/us slew rate handles faster small-signal changes. The rail-to-rail input stage is particularly useful when a sensor output approaches either supply rail.
Battery-Powered Measurement Equipment
In a 3 V or 5 V portable instrument, the TS952IPT provides two low-power amplifier channels in one 8-pin TSSOP package. The dual configuration reduces board area, while rail-to-rail input and output operation preserves signal range in compact systems. Its 35 nA input bias current is useful with resistive dividers, thermistors, and other high-impedance probes. Design checks should include offset error, noise, source-impedance limits, and the output swing under the expected load.
Industrial Control and Data Acquisition
The TS952IPT can amplify low-level control signals in industrial acquisition and monitoring modules operating from 3 V or 5 V. Rail-to-rail input stages accommodate sensors whose voltage range extends near the supply limits, and the dual 8-pin TSSOP package supports two channels without consuming two separate amplifier packages. Its 1 V/us slew rate and 3 MHz bandwidth are suitable for moderate-speed control loops, but grounding, decoupling, and isolation still require careful PCB planning.
Audio and Communication Buffering
Use the TS952IPT as a low-level buffer or gain stage in compact audio and communication equipment where a 3 V or 5 V rail limits available signal headroom. Rail-to-rail output capability increases usable amplitude near the supply limits, and the dual package allows left- and right-channel buffering in one component. The 3 MHz bandwidth and 1 V/us slew rate are adequate for many voice-band and general signal paths, although the 6 mV input offset requires review for precision audio specifications.
Photodiode and Optical Front Ends
The TS952IPT can support low-current optical front ends where source impedance and available signal amplitude are both constrained. Its 35 nA input bias current reduces errors caused by bias current flowing through a photodiode or transimpedance network, while the dual channel can provide amplification or buffering in instrumentation. The 3 MHz gain-bandwidth product helps define achievable closed-loop bandwidth. Follow the manufacturer guidance on input capacitance, feedback stability, guard rings, and junction leakage.
General-Purpose Embedded Interface
The TS952IPT is suitable for embedded analog interfaces that need two general-purpose amplifiers, low quiescent loading, and flexible rail-to-rail signal handling. It can buffer ADC inputs, condition switch outputs, or amplify sensor signals in a compact mixed-signal design. The 8-pin TSSOP footprint simplifies use in space-constrained boards, while operation from 3 V and 5 V systems aligns with common embedded rails. Validate ADC settling, logic-threshold margins, and capacitive loading before production release.
工程参考数据： TS952IPT ——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 |
|---|---|
| Package | 8-pin TSSOP |
| Brand | STMicroelectronics |
| Amplifier Channel Count | 2 channels |
| Input Bias Current | 35 nA |
| Slew Rate | 1 V/us |
| Gain-Bandwidth Product | 3 MHz |
| Input Offset Voltage | 6 mV |
| Input Common-Mode Range | Rail-to-rail input |
| Output Swing | Rail-to-rail output |
| Supported System Supply | 3 V to 5 V |
关键差异点
- Dual rail-to-rail amplifier channels in one compact package （对比 Single-channel amplifiers)
- Low input bias current for high-impedance signal sources （对比 General-purpose bipolar-input amplifiers)
- Moderate-speed operation with compact low-voltage support （对比 Higher-bandwidth precision amplifiers)
设计说明
Place the input and output bypass capacitors close to the associated TS952IPT pins and keep the return paths short. Use the manufacturer's recommended capacitance values and account for capacitor effective DC bias derating. Route sensitive input nets away from switching nodes and high-current return paths. Because no pin-level application circuit was identified in the cited manufacturer document, use the datasheet pin-description table and recommended application diagram as the PCB-layout authority.
Do not assume that rail-to-rail input and output operation eliminates all saturation constraints. Check the exact input common-mode and output-swing limits, including output-current direction, across temperature. The 6 mV input offset is significant in precision gain stages, while the 3 MHz gain-bandwidth product limits closed-loop bandwidth at high gains. Use the unity-gain stability guidance from the manufacturer datasheet when driving capacitive loads.
The 35 nA input bias current is valuable with high-impedance sources, but source leakage, PCB contamination, and input protection leakage can become comparable. Keep input leakage paths short and guard sensitive nodes where appropriate. For a dual amplifier, maintain symmetrical routing when channel-to-channel timing matters, and use a short ground return from the bypass network to the device ground pins.
Use a supply rail compatible with the amplifier's operating limits and verify startup behavior when the input signal exceeds the rail during power sequencing. The low-power 35 nA bias-current characteristic supports battery-oriented designs, but the complete supply-current budget depends on the operating mode and load. Confirm quiescent current, output-current capability, and absolute maximum ratings in the manufacturer datasheet before finalizing the power tree.
合规信息
Compliance status was not stated in the manufacturer or distributor material identified for TS952IPT. Request the current manufacturer declarations before release to a regulated production design.