TS954IN - 3MHz Quad Rail-to-Rail Op Amp | STMicroelectronics
料号： TS954IN ✓ 量产中TS954IN 概述
An operational amplifier is an active semiconductor device that amplifies the voltage difference between its differential inputs. Rail-to-rail input capability means the input common-mode range can extend toward both supply rails, while rail-to-rail output capability allows the output voltage to approach the operating limits more closely than a conventional non-rail-to-rail amplifier. The TS954IN belongs to the TS95x family of low-power BiCMOS operational amplifiers optimized for single-supply systems.
Key characteristics include four amplifier channels in one package, a 3 MHz gain-bandwidth product, and a 1 V/us slew rate. These specifications support applications such as sensor interfaces, buffered analog signals, low-voltage instrumentation, audio paths, and general-purpose analog conditioning. The TS954IN is also identified as ESD protected to 2 kV and includes latch-up protection according to the manufacturer datasheet information.
The BiCMOS architecture combines bipolar input characteristics with CMOS power-handling behavior. This implementation supports low-power operation while maintaining a useful small-signal bandwidth for sensor, filtering, and signal-buffer circuits. At a 3V supply, the family is specifically optimized for low-power consumption, which makes it relevant to portable equipment and embedded analog systems that cannot justify a higher-power precision amplifier.
Typical uses include buffering sensor outputs, amplifying low-level analog signals, active filtering, level shifting, audio preamplification, and instrumentation. The quad organization reduces package count when several independent analog channels are required. Designers should still evaluate input offset voltage, input bias current, output-current capability, noise, and stability for the exact gain, load, and supply conditions before finalizing a circuit.
The principal design consideration is operating margin. Rail-to-rail inputs and outputs do not remove the requirement to maintain adequate input and output voltage limits, especially under load. Decoupling capacitors should be placed close to the supply pins, and feedback networks should be designed to preserve the intended closed-loop gain while avoiding output saturation.
This product page combines the manufacturer family description with practical application guidance, parameter comparison, and pin-package considerations. It is intended to help engineers determine whether the TS954IN's four-channel 3V/5V rail-to-rail architecture fits a board-level design before consulting the complete manufacturer datasheet for limit values and test conditions.
直接替换替代料： TS954IN ——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： TS954IN （相同外形与封装尺寸） ——差异在于 Package, Mounting Type, Slew Rate, ESD Protection, Input Common-Mode Range.
TS954ID
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →TS954IP
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
TS954IYDT
✅ 直接替换 ⚠️ 规格未核验📋 参考替代料（不在目录中）
OP496GP
✅ 直接替换📋 参考替代料（不在目录中）
OP496GPZ
✅ 直接替换📋 参考替代料（不在目录中）
TS954IN 最大额定值与电气特性
| Product Type | Quad input/output rail-to-rail low-power operational amplifier |
| Amplifier Channel Count | 4 circuits |
| Architecture | BiCMOS |
| Supply Optimization | 3 V and 5 V operation |
| Maximum Supply Voltage | 12 V |
| Gain-Bandwidth Product | 3 MHz |
| Slew Rate | 1 V/us |
| Supply Voltage Rejection Ratio | 80 dB |
| Input Common-Mode Range | Input rail-to-rail |
| Output Voltage Swing | Output rail-to-rail |
| ESD Protection | 2 kV |
| Latch-Up Protection | Supported |
| 封装 | 14-DIP |
| 安装类型 | Through-hole |
TS954IN 14-dip 引脚配置指南
TS954IN（14-dip 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： TS954IN.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TS954IN 适用于 6 应用s: Low-Voltage Sensor Conditioning, Portable Instrumentation, Active Filtering, Audio Preamplification, Data Acquisition Interfaces, General-Purpose Analog Buffering.
Low-Voltage Sensor Conditioning
The TS954IN suits low-voltage sensor front ends because its rail-to-rail input stage accepts signals approaching the 3V or 5V supply rails, while the 3 MHz gain-bandwidth product supports useful closed-loop bandwidth above low-frequency sensor signals. Each of the four channels can buffer or amplify a transducer output without requiring four separate packages. The 1 V/us slew rate provides adequate response for moderate-amplitude, moderate-frequency waveforms. Designers should still compare input bias current and offset voltage against the sensor impedance, and verify output swing at the selected load before committing the circuit.
推荐
Portable Instrumentation
The TS954IN is appropriate for portable instrumentation powered from 3V or 5V because the TS95x family is optimized for those supply rails and combines four amplifiers in one 14-DIP package. Rail-to-rail inputs help preserve measurement range near the supply limits, while the 80 dB supply-voltage rejection ratio assists in reducing supply-related errors. The four channels can support instrumentation-buffer, differential, gain, and output functions. Before using it for precision measurement, verify offset voltage, input bias current, input noise, and common-mode behavior for the specific sensor and reference circuit.
推荐
Active Filtering
The TS954IN can implement active low-pass, high-pass, and other feedback filters where a 3 MHz gain-bandwidth product and 1 V/us slew rate are sufficient for the signal bandwidth. Its quad-channel organization allows cascading stages or building several filters in one package, reducing board area compared with discrete single amplifiers. The 3V and 5V operating optimization also supports compact battery-powered test equipment. Component selection must account for closed-loop gain, noise gain, phase margin, component tolerances, and output loading; the complete manufacturer datasheet should be used to assess stability and output-current limits.
推荐
Audio Preamplification
The TS954IN can serve as a general-purpose audio preamplifier or line-stage buffer in 3V and 5V systems because it provides rail-to-rail output operation and a 3 MHz gain-bandwidth product. The 1 V/us slew rate is suitable for many low-frequency and midrange audio signals, while four channels allow convenient stereo implementation with additional monitoring or filtering channels. Headphone or loudspeaker loads require separate output-current and distortion checks, and input-noise performance must be compared with the source impedance. Decoupling and grounding should prevent supply ripple and digital switching noise from entering the audio path.
推荐
Data Acquisition Interfaces
The TS954IN is suitable for intermediate stages in a 12-bit or 16-bit data-acquisition interface when its input offset, bias current, noise, and output-drive behavior satisfy the converter requirements. Rail-to-rail inputs help utilize more of the available 3V or 5V sensor range, and the quad package can provide multiple amplifier functions for gain, filtering, level shifting, and reference buffering. A practical design should include anti-alias filtering, source-impedance analysis, and a converter-specific settling-time review. The manufacturer's complete electrical tables remain necessary for precision conversion because bandwidth alone does not establish total error.
推荐
General-Purpose Analog Buffering
The TS954IN provides four independent channels for buffering isolated sensor, interface, or control signals on a 3V or 5V board. Rail-to-rail input and output stages reduce signal-headroom loss, and the 80 dB supply-voltage rejection ratio helps isolate the buffered signal from supply noise. Use the quad organization to place several buffers near the associated circuitry and reduce trace sensitivity. Validate stability with the intended capacitive load, maintain adequate output voltage margin, and include local supply decoupling. For very high source impedances or very low-level signals, the input bias current and offset specifications should be reviewed before layout is finalized.
推荐
推荐产品汇总
工程参考数据： TS954IN ——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 | TS954ID | TS954IP | TS954IYDT | OP496GP | OP496GPZ |
|---|---|---|---|---|---|---|
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Analog Devices | Analog Devices |
| Package | 14-DIP | 14-DIP - same | 14-DIP - same | 14-DIP - same | 14-DIP - same | 14-DIP - same |
| Amplifier Channels | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits | 4 circuits |
关键差异点
- Four low-power amplifiers in one through-hole package （对比 OP496GP)
- Specified for 3V and 5V low-voltage systems （对比 OP496GPZ)
- Combination of bandwidth, slew rate, and supply rejection （对比 TS954ID)
设计说明
Design the TS954IN around its optimized 3V and 5V supply conditions and do not exceed the documented 12 V maximum supply voltage. Place a local bypass capacitor at each amplifier supply connection as indicated in the manufacturer application guidance, and keep the return path short. Because four channels share one package, aggregate supply current and thermal dissipation can rise when all channels operate simultaneously. Check each channel's output-current demand and the total package temperature rise under the worst-case load rather than evaluating only one amplifier.
Do not treat the word rail-to-rail as permission to exceed the input common-mode or output-swing limits. Confirm the signal remains inside the permitted range at the selected supply voltage and load, including the effect of output saturation. Also account for input offset voltage and bias current when the source impedance is high. Four independently configured amplifiers can introduce separate stability and saturation risks, so evaluate each channel at its actual gain and capacitive load.
Use the manufacturer pin-description table when assigning the 14-DIP footprint and maintain a common ground reference across all four channels. Route sensitive input and feedback traces away from switching nodes and high-current return paths. Keep supply-decoupling connections short, use an adequate ground plane, and place input-conditioning components close to their associated pins. Although the through-hole package tolerates longer routing than many SMD packages, minimizing loop area remains important because the 80 dB supply rejection specification is only effective within its stated test conditions.
Use the 3 MHz gain-bandwidth product to select a closed-loop gain and feedback network that retains adequate phase margin over the intended signal bandwidth. The 1 V/us slew rate limits large-signal response, so a circuit that meets small-signal bandwidth requirements can still distort faster full-scale transitions. For filters or oscillators, include component tolerances and amplifier noise gain in the design. Check capacitive loading and add an isolation resistor when driving long PCB traces or cable capacitance.
合规信息
The verified manufacturer-family information identifies a general-purpose operational amplifier and does not state product-specific RoHS, REACH, lead-free, halogen-free, conflict-minerals, or automotive qualification status.