TS952IN - Dual 3MHz Rail-to-Rail Op Amp | STMicroelectronics
料号： TS952IN ✓ 量产中TS952IN 概述
An operational amplifier is a voltage-controlled differential amplifier that can amplify the difference between two input voltages while providing high open-loop gain. The TS952IN contains two independent amplifier channels in one package. Rail-to-rail input operation lets each channel accept signals close to the positive or negative supply rail, while rail-to-rail output operation allows the output voltage to approach either supply limit. These characteristics make the device useful for portable instrumentation, sensor interfaces, audio paths, and low-voltage control systems.
The 3 MHz gain-bandwidth product supports useful bandwidth in low-voltage signal chains without requiring a high-speed amplifier operating from a larger supply. The 1 V/us slew rate helps limit large-signal distortion when signals change quickly. Because the TS95x family is designed for low-power operation, the TS952IN is also appropriate for battery-powered equipment where a pair of independent amplifiers is useful without using two separate packages.
The device is specified for a 2.7 V to 12 V supply range, with its family optimized for 3 V and 5 V systems. At low supply voltages, rail-to-rail behavior becomes especially valuable because it increases the usable input and output range relative to conventional fixed-output amplifiers. Designers should still verify the actual output swing, input common-mode range, noise, input bias current, output-current capability, and stability requirements against the manufacturer datasheet for the operating point of interest.
Typical applications include buffering sensor outputs, amplifying low-level analog signals, active filtering, audio preamplification, and general-purpose signal conditioning. In a sensor interface, one channel can amplify the sensor signal while the other can provide buffering, gain, or a reference-related function. Supply bypassing, output-load compatibility, and stability with the selected feedback network are important implementation considerations for this general-purpose dual amplifier.
This product page combines the verified TS952IN operating characteristics, package information, drop-in replacement findings, application guidance, and practical design notes. It is intended to help engineers identify the correct amplifier quickly, compare pin-compatible choices, and plan PCB and signal-chain changes before releasing a new design.
直接替换替代料： TS952IN ——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： TS952IN （相同外形与封装尺寸） ——差异在于 Amplifier Type, Input Common-Mode Range, Package, Slew Rate.
TS952IN 最大额定值与电气特性
| Amplifier Type | Dual general-purpose operational amplifier |
| Number of Amplifiers | 2 channels |
| Gain-Bandwidth Product | 3 MHz |
| Slew Rate | 1 V/us |
| Supply Voltage Range | 2.7 V to 12 V |
| Architecture | BiCMOS |
| Input Common-Mode Range | Input and output rail-to-rail |
| Output Swing | Output rail-to-rail |
| Optimization Voltage | 3 V and 5 V operation |
| Power Class | Low power |
| 封装 | 8-pin Mini DIP (PDIP-8) |
| Package Pitch | 7.62 mm |
| Package Body Width | 0.300 inch |
| 安装方式 | Through-hole |
| RoHS 状态 | unknown |
| REACH Status | unknown |
| AEC-Q100 Qualification | not_qualified |
TS952IN 引脚配置
| 引脚 1 | OUT A — Output of amplifier A |
| 引脚 2 | -IN A — Inverting input of amplifier A |
| 引脚 3 | +IN A — Non-inverting input of amplifier A |
| 引脚 4 | V- — Negative supply connection |
| 引脚 5 | +IN B — Non-inverting input of amplifier B |
| 引脚 6 | -IN B — Inverting input of amplifier B |
| 引脚 7 | OUT B — Output of amplifier B |
| 引脚 8 | V+ — Positive supply connection |
典型应用
TS952IN 适用于 6 应用s: Low-Voltage Sensor Signal Conditioning, Portable Audio Preamplification, Active Filtering and Signal Shaping, Industrial Control and Instrumentation, Communications and Interface Buffing, Power-Supply Feedback and Analog Monitoring.
Low-Voltage Sensor Signal Conditioning
The TS952IN suits low-voltage sensor interfaces because its input and output stages operate rail-to-rail while the device is optimized for 3 V and 5 V systems. Place one channel in a non-inverting configuration when the sensor output is centered around a mid-supply reference, or use inverting feedback when the sensor is a current-source device and the required gain is known. The 3 MHz gain-bandwidth product supports signals well above the common sensor bandwidths used in industrial and portable equipment. Check the datasheet for input bias current, offset voltage, noise, and common-mode limits before using it with high-impedance sources. The 1 V/us slew rate also provides adequate large-signal headroom for many low-frequency measurement channels without introducing a high-speed amplifier’s greater supply demand.
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Portable Audio Preamplification
The TS952IN can serve as a dual low-voltage audio preamplifier in portable equipment operating from 3 V or 5 V. Its rail-to-rail input stage accepts source signals that swing close to the supply rails, while rail-to-rail output capability increases the usable voltage range into a downstream ADC or codec. The 3 MHz bandwidth exceeds typical human-audio and many control-signal requirements, while the 1 V/us slew rate helps prevent excessive distortion on larger transients. Both channels can process left and right inputs independently. Confirm output-current capability, noise density, output-voltage swing, and stability with the intended load using the STMicroelectronics datasheet, particularly when driving a headphone stage, audio network, or high-gain filter.
推荐
Active Filtering and Signal Shaping
The dual TS952IN is useful when a board needs two independent active-filter or general-purpose shaping functions in one through-hole package. Its 3 MHz gain-bandwidth product provides operating margin for filters intended for control, sensor, or low-frequency communication signals rather than precision RF work. The 1 V/us slew rate reduces large-signal error when the filter drives a moderate capacitive or resistive load. Configure each amplifier with stable feedback and suitable decoupling, then verify phase margin at the actual gain, load, and supply voltage. Rail-to-rail input and output behavior is especially helpful in 3 V systems because it broadens the signal range available to the filter. The device is not a substitute for a precision instrumentation amplifier when input offset, bias current, and drift dominate the measurement error.
推荐
Industrial Control and Instrumentation
The TS952IN fits industrial control boards that operate from 5 V or a higher supported supply and need flexible analog signal conditioning. One channel can buffer a control or sensor signal, while the second can amplify a feedback quantity, reference signal, or auxiliary monitor. Its rail-to-rail input and output characteristics provide useful signal range in low-voltage control systems, and the 3 MHz bandwidth is more than adequate for many process-control loops. The through-hole Mini DIP package supports prototype boards, control-panel assemblies, and repair products where socketed through-hole construction is practical. For safety- or mission-critical equipment, verify operating temperature, supply-current, electromagnetic-performance requirements, and component qualification separately. The standard TS952IN is not identified as AEC-Q100-qualified automotive grade.
推荐
Communications and Interface Buffing
The TS952IN can buffer or amplify low-level communications-interface signals in equipment operating from 3 V or 5 V. Rail-to-rail inputs are useful when line-driver outputs can approach the supply range, and the dual configuration supports two channels such as transmit and receive, data and clock, or differential halves of a balanced interface. Its 3 MHz gain-bandwidth product and 1 V/us slew rate suit many low-speed control and data-conditioning tasks, but the device is not intended to replace a high-speed line driver or differential transceiver. Validate input capacitance, output loading, logic thresholds, and timing margins in the completed circuit. A low-pass filter may be added ahead of the amplifier when slow-moving noise is present, while bypassing close to pins 4 and 8 is essential.
推荐
Power-Supply Feedback and Analog Monitoring
The TS952IN can monitor a power rail, buffer a reference, or amplify a feedback signal in a low-voltage power-management design. One channel may sense a divided output voltage while the other buffers the result for an ADC or comparator. The 2.7 V to 12 V supply range permits operation across common 3 V and 5 V rails, and rail-to-rail input behavior helps when monitoring voltages near either supply limit. The 3 MHz bandwidth is generally much higher than required for slow power feedback, leaving margin for transient monitoring. Because the TS952IN is a general-purpose amplifier rather than a dedicated power-management controller, use the manufacturer datasheet to check input offset, bias current, and output-current limits. Its through-hole package also supports simple bench prototypes and educational power-supply designs.
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推荐产品汇总
工程参考数据： TS952IN ——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 | TS952ID | TS952IN |
|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics |
| Package | 8-pin Mini DIP (PDIP-8) | 8-pin Mini DIP (PDIP-8) | 8-pin Mini DIP (PDIP-8) |
| Number of Amplifiers | 2 | 2 | 2 |
| Gain-Bandwidth Product | 3 MHz | 3 MHz | 3 MHz |
| Slew Rate | 1 V/us | 1 V/us | 1 V/us |
| Supply Voltage Range | 2.7 V to 12 V | 2.7 V to 12 V | 2.7 V to 12 V |
| Input/Output Range | Rail-to-rail input and output | Rail-to-rail input and output | Rail-to-rail input and output |
| Architecture | BiCMOS | BiCMOS | BiCMOS |
| Mounting Style | Through-hole | Through-hole | Through-hole |
| Automotive Qualification | Not AEC-Q100 qualified | Not AEC-Q100 qualified | Not AEC-Q100 qualified |
关键差异点
- Combines two independent rail-to-rail amplifier channels in one through-hole package （对比 TS952IDT)
- Optimized for common low-voltage analog systems （对比 General-purpose fixed-rail amplifiers)
- Provides adequate bandwidth and slew rate for general-purpose conditioning （对比 Precision low-bandwidth amplifiers)
设计说明
Place the supply-bypass capacitor as close as practical to pins 4 and 8, and keep the ground return short to the device ground plane. For a non-inverting stage, connect the inverting input directly to the feedback divider near the amplifier to minimize parasitic pickup. For an inverting stage, route the feedback resistor and input resistor close to the relevant input pin. The 8-pin Mini DIP footprint provides ample physical spacing, but lead inductance and long feedback loops can still impair stability.
Do not treat rail-to-rail as an unlimited output range. The usable output swing depends on supply voltage, output load, temperature, and the selected gain. Similarly, rail-to-rail input capability does not remove the need to check input common-mode limits and absolute maximum ratings. Confirm the feedback topology, output-load current, input capacitance, and stable gain using the STMicroelectronics TS952IN datasheet before release.
The 3 MHz gain-bandwidth product and 1 V/us slew rate are appropriate for general-purpose low-frequency signal conditioning, not precision high-speed acquisition. Keep sensitive sensor inputs away from clock, switching-regulator, and digital return currents, and use a grounded guard or shielding strategy when source impedance is high. Add filtering only after evaluating phase margin, because excessive capacitance at the output or a high-gain feedback network can reduce stability.
Design the supply network for the datasheet operating range of 2.7 V to 12 V while recognizing that the TS95x family is optimized for 3 V and 5 V operation. Check supply-current consumption at the actual load and temperature, and account for startup behavior in battery-powered equipment. Do not apply an absolute maximum voltage above 12 V. If the amplifier must remain powered while its input is disconnected, verify input-current and protection behavior in the manufacturer documentation.
合规信息
The verified product information does not explicitly establish RoHS, REACH, lead-free, halogen-free, or conflict-minerals status. AEC-Q100 qualification is not identified for the standard TS952IN ordering code.
