TS914ID - Quad Rail-to-Rail CMOS Op Amp | STMicroelectronics
料号： TS914ID ✓ 量产中TS914ID 概述
A CMOS operational amplifier is a voltage-controlled, high-gain analog building block whose differential input is amplified relative to ground or another reference voltage. The TS914 belongs to the operational-amplifier hierarchy, combining four amplifiers in one integrated circuit. It is designed for low-power, single-supply and dual-supply systems where four independent analog channels can be implemented in one compact 14-pin SOIC package.
Key features include four amplifier channels, rail-to-rail input and output ranges, a 2.7 V to 16 V supply-voltage range, and a 1.4 MHz gain-bandwidth product. The typical input bias current of 1 pA is particularly valuable when source impedances are high, because it minimizes the voltage error caused by bias current. The reported 200 µA supply current per amplifier at 3 V also supports battery-powered and portable equipment when the required bandwidth is moderate.
The TS914's CMOS input stage enables operation close to the supply rails and supports low input bias current. Its 1.4 MHz bandwidth is appropriate for general-purpose amplification, filtering, buffering, and signal conditioning rather than high-speed precision instrumentation. Because the maximum offset voltage is specified as 2 mV, applications demanding sub-millivolt accuracy require additional calibration or a more precise amplifier.
Typical uses include four-channel sensor interfaces, low-frequency active filters, audio and communication signal conditioning, portable instrumentation, and industrial control modules. Placing all four channels in one SOIC package reduces board area and external component count. Input common-mode and output swing limits, output-current capability, noise, and stability should still be checked against the manufacturer datasheet before fixing the supply voltage and external network.
For reliable single-supply operation, keep the input common-mode voltage within the supported range, place input and feedback components close to the device, and provide suitable bypassing at each supply pin. Decoupling requirements and compensation values must follow the manufacturer datasheet rather than generic assumptions. If the source resistance is high, account for input bias-current and capacitance errors, and confirm that the selected feedback topology remains stable at the intended gain.
This product page consolidates verified manufacturer and distributor information with package, application, replacement, and design guidance. It distinguishes verified parameters from information that still requires datasheet review, helping engineers evaluate TS914ID without mistaking generic amplifier assumptions for guaranteed TS914ID characteristics.
直接替换替代料： TS914ID ——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： TS914ID （相同外形与封装尺寸） ——差异在于 Amplifier Type, Package, Gain-Bandwidth Product, Supply Voltage Range, Input Offset Voltage.
TS914AIYD
✅ 直接替换📋 参考替代料（不在目录中）
TS914AIYDT
✅ 直接替换📋 参考替代料（不在目录中）
TS27M4IDT
✅ 直接替换📋 参考替代料（不在目录中）
TS912ID
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →TS902ID
✅ 直接替换 ⚠️ 规格未核验联系询价
查看数据手册 →LMC6494BEMX/NOPB
✅ 直接替换📋 参考替代料（不在目录中）
TS914ID 最大额定值与电气特性
| Amplifier Type | Quad CMOS operational amplifier |
| Number of Channels | 4 channels |
| Input and Output Type | Rail-to-rail input and output |
| Supply Voltage Range | 2.7 V to 16 V |
| Supply Configuration | Single or dual supply |
| Gain-Bandwidth Product | 1.4 MHz |
| Input Bias Current | 1 pA typical |
| Input Offset Voltage | 2 mV maximum |
| Supply Current per Amplifier | 200 µA at 3 V |
| 封装 | 14-pin SOIC |
| 安装类型 | Surface mount |
| Process Technology | CMOS |
TS914ID 14-pin soic 引脚配置指南
TS914ID（14-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： TS914ID.
请参阅 数据手册 以查看完整引脚配置。
典型应用
TS914ID 适用于 6 应用s: High-Impedance Sensor Signal Conditioning, Portable Battery-Powered Instrumentation, Industrial Four-Channel Signal Conditioning, Low-Frequency Active Filtering, Audio and Communication Buffers, Battery Management and Voltage Monitoring.
High-Impedance Sensor Signal Conditioning
The TS914ID fits high-impedance sensor interfaces because its rail-to-rail input range accommodates signals near either supply rail and its 1 pA typical input bias current limits the error introduced by source resistance. Four amplifiers can condition four sensor channels within one 14-pin SOIC package. The 1.4 MHz gain-bandwidth product is sufficient for many temperature, light, humidity, and capacitive-sensing channels, while the 2 mV maximum offset voltage requires attention in high-accuracy measurements. Calibration may be necessary when the sensor and amplifier offsets contribute materially to the system error budget.
推荐
Portable Battery-Powered Instrumentation
The TS914ID is appropriate for portable instrumentation because it operates from 2.7 V to 16 V and consumes a verified 200 µA per amplifier at 3 V. Its rail-to-rail input and output capability preserves signal headroom in low-voltage systems, while four channels reduce the number of packages required for a multichannel instrument. The 1.4 MHz bandwidth supports moderate-speed sensing and control rather than waveform capture at high frequencies. Battery-life calculations must include the aggregate current of four active amplifiers, output loading, leakage, and any external analog circuitry.
推荐
Industrial Four-Channel Signal Conditioning
The TS914ID can condition four low-frequency industrial sensor channels within a 2.7 V to 16 V control system. Its rail-to-rail input and output ranges simplify scaling around low-voltage analog nodes, and the 14-pin SOIC package reduces board area compared with four single-amplifier packages. The 1.4 MHz gain-bandwidth product supports general-purpose gain and active-filter stages, but channel bandwidth, input common-mode behavior, and output settling must be checked against the factory datasheet. Industrial surge, temperature, and EMC requirements should be evaluated separately from the basic amplifier specifications.
推荐
Low-Frequency Active Filtering
The TS914ID is suitable for low-frequency active filters when four channels can share one package. Its 1.4 MHz gain-bandwidth product leaves bandwidth for moderate closed-loop gains, and its CMOS input stage provides a verified 1 pA typical bias current that helps preserve high-impedance filter behavior. Component tolerances and the amplifier's gain-bandwidth response can determine the realized cutoff and stopband behavior. The exact resistor and capacitor values, permissible noise gain, and stability conditions must be selected from the manufacturer datasheet and verified on the assembled board.
推荐
Audio and Communication Buffers
The TS914ID can provide low-level buffering and gain for audio or communication interfaces that operate within its 1.4 MHz bandwidth and 2.7 V to 16 V supply range. Rail-to-rail I/O operation is useful with low-voltage codecs, sensors, and line-level interface circuits. However, the TS914ID is a general-purpose CMOS amplifier, so noise density, harmonic distortion, channel separation, and output-drive data must be checked before using it in high-fidelity audio. Four channels allow matched buffering for stereo or multi-interface designs when board layout and thermal conditions are controlled.
推荐
Battery Management and Voltage Monitoring
The TS914ID can support current sensing, battery-voltage monitoring, threshold comparison, and low-frequency feedback loops in a compact power-management module. Rail-to-rail input operation is helpful when monitoring signals extend toward a low-voltage supply rail, and the 1 pA typical bias current is advantageous with high-resistance sense elements. The 2 mV maximum offset must be included in the measurement error budget. The amplifier is not itself a charger or protection controller, so its use should remain limited to the analog monitoring and control functions validated by the system design.
推荐
推荐产品汇总
工程参考数据： TS914ID ——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 | TS914AIYD | TS914AIYDT | TS27M4IDT | TS912ID | TS902ID | LMC6494BEMX/NOPB |
|---|---|---|---|---|---|---|---|
| Package | SOIC-14 | SOIC-14 | SOIC-14 | SOIC-14 | SOIC-14 | SOIC-14 | SOIC-14 |
| Brand | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | STMicroelectronics | Texas Instruments |
| Amplifier Configuration | Quad | Quad | Quad | Quad | Quad | Quad | Quad |
关键差异点
- Four rail-to-rail channels in one 14-pin SOIC package （对比 LMC6494BEMX/NOPB)
- Low 1 pA typical input bias current （对比 TS27M4IDT)
- Broad verified 2.7 V to 16 V supply range （对比 TS912ID)
- Automotive-grade same-family ordering options （对比 TS914ID)
设计说明
Place the manufacturer-recommended bypass capacitors immediately adjacent to the TS914ID supply pins and connect them to a low-impedance ground plane. Keep input and feedback-component connections short to minimize parasitic coupling. Because the device provides four channels in one 14-pin SOIC package, route each channel independently and avoid sharing long high-impedance input traces. The supplied web results do not state the required capacitor values, so those values must be taken from the STMicroelectronics TS914 datasheet rather than inferred from generic op-amp practice.
Do not treat the 2 mV maximum input offset voltage as adequate for every precision measurement. Include the offset error, input bias-current error, noise, and resistor tolerance in the system error budget. For a high-value source resistance, the verified 1 pA typical input bias current can still produce a meaningful voltage error even though it is low. Verify the actual minimum and maximum input resistance, source leakage, and operating temperature before selecting the amplifier for high-impedance precision sensing.
The 1.4 MHz gain-bandwidth product limits the useful closed-loop bandwidth as gain rises. For example, a gain of 10 implies an approximate 140 kHz bandwidth under a simplified gain-bandwidth estimate; this is an estimate and must be confirmed against the manufacturer curve. Avoid operating close to the gain-bandwidth limit if phase margin, settling time, or noise-gain peaks are important. Use the datasheet's recommended feedback network and evaluate the finalized layout because an unsuitable feedback ratio can compromise stability.
The verified supply-current value is 200 µA per amplifier at 3 V, so four continuously active channels can consume roughly 800 µA before external loads and bias effects are included. That is an estimate derived from the quoted per-amplifier value, not a separate maximum supply-current specification. Battery-powered designs should sum the current of all four channels and account for sleep-mode availability, output loading, leakage, voltage dependence, and the behavior of the chosen operating state before estimating battery life.
合规信息
The supplied verified data does not provide explicit compliance statements. The TS914AIYD and TS914AIYDT ordering codes are presented as automotive family alternatives, but an AEC-Q100 qualification statement was not included and has not been inferred. The RoHS state on one third-party listing was a verification request rather than a confirmed declaration.