TS912IN - Dual Rail-to-Rail CMOS Op Amp | STMicroelectronics
MPN： TS912IN ✓ 啟用中TS912IN 概覽
A CMOS operational amplifier is a voltage amplifier whose differential input controls the voltage applied to its output. Rail-to-rail input and output ratings allow the amplifier to operate close to the positive and negative supply rails, increasing the usable output range in single-supply systems. In the electronics hierarchy, the TS912IN is a dual operational amplifier, which belongs to the broader class of analog amplifier ICs and ultimately to integrated circuits used for analog signal processing.
Key features include two independent amplifier channels, rail-to-rail input and output operation, and a 2.7 V to 16 V total supply range. The 1 pA typical input bias current is particularly useful for high-impedance sources because it minimizes source-loading error. Maximum input offset voltage of 2 mV supports accurate amplification of signals near the lower end of the input range. Operation from a 3 V supply at approximately 200 µA per amplifier also helps limit power consumption in battery-operated equipment.
The TS912IN uses CMOS input circuitry to provide low bias current and low supply consumption. Rail-to-rail input behavior is important when the signal can approach either supply rail, while rail-to-rail output capability allows the output to use much of the available supply voltage. Designers should still account for output-current limits, load impedance, input common-mode behavior, and output-voltage headroom under the selected supply voltage and load conditions.
Typical uses include low-power sensor signal conditioning, portable measurement instruments, battery-powered monitoring, and general-purpose analog filtering. The dual configuration allows one package to provide two amplifier channels for gain stages, buffers, comparators, or active filters. When the source impedance is high, the 1 pA typical bias current reduces loading, although PCB leakage and guard-ring techniques may still be necessary in demanding measurements.
When designing around the TS912IN, use stable bypass capacitance at the supply pins and keep feedback components close to the amplifier pins to minimize parasitic effects. Confirm the required output swing, load, input range, and noise performance against the manufacturer datasheet before finalizing a high-gain or precision application.
This page consolidates the verified manufacturer descriptions, distributor references, package information, technical characteristics, and substitution constraints for the TS912IN. It also distinguishes verified data from unavailable pricing, compliance, and pin-mapping details, helping engineers evaluate the amplifier without treating unverified substitute parts as drop-in equivalents.
直接替換替代品，適用於 TS912IN — 相同封裝，腳位對腳位相容。需重新設計 PCB 的不同封裝零件不列入。
此系列的變體
與下列產品可直接替換的同系列型號： TS912IN （相同外形與佔位） — 差異在於 Mounting Type, Package.
此產品無可直接替換的替代品。
申請替代品TS912IN 最大額定值與電氣特性
| Amplifier Count | 2 channels |
| Product Type | Rail-to-rail CMOS dual operational amplifier |
| Supply Voltage Range | 2.7 V to 16 V |
| Supply Configuration | Single or dual supply |
| 輸入電壓範圍 | Rail-to-rail |
| 輸出電壓範圍 | Rail-to-rail |
| Typical Input Bias Current | 1 pA |
| Maximum Input Offset Voltage | 2 mV |
| Supply Current per Amplifier | 200 µA at VCC = 3 V |
| Specified Load | 600 Ω and 100 Ω |
| Input Protection | Latch-up immunity |
| ESD Tolerance | Supported |
| 封裝 | 8-pin Mini DIP |
| 安裝類型 | Through-hole |
TS912IN 8-pin mini dip 腳位配置指南
TS912IN（8-pin mini dip 封裝）的腳位配置。 此類比元件具有輸入、輸出與電源腳位。偏移歸零、補償與致能腳位配置請參閱製造商資料表。適用於訊號調理與放大器電路。
無詳細腳位定義資料： TS912IN.
請參閱 資料表 以查看完整腳位配置。
典型應用
TS912IN 適用於 6 應用s: High-Impedance Sensor Signal Conditioning, Portable Measurement Instruments, Battery-Powered Monitoring, Active Analog Filters, Low-Voltage Audio and Control Interfaces, Industrial Process Sensing.
High-Impedance Sensor Signal Conditioning
The TS912IN fits high-impedance sensor interfaces because its input bias current is 1 pA typical, reducing the current drawn from a sensitive source and the resulting measurement error. The dual configuration can provide a non-inverting gain stage and a buffer without requiring two packages. Rail-to-rail input operation is useful when the sensor output approaches either supply rail, while the 2.7 V to 16 V range supports compact, low-voltage systems. The design must still account for board leakage, guard rings, connector contamination, input capacitance, and the amplifier's 2 mV maximum input offset voltage.
推薦
Portable Measurement Instruments
The TS912IN is appropriate for portable measurement instruments that need two analog channels, low supply current, and flexible rail configurations. At a 3 V supply, the verified manufacturer datasheet reports approximately 200 µA supply current per amplifier, helping limit battery consumption. One channel can amplify a sensor signal while the other can buffer a reference or drive an active filter. Its 1 pA typical input bias current is valuable when measuring high-source-impedance transducers, although temperature range, noise, accuracy, and display-interface requirements must be verified for the complete instrument.
推薦
Battery-Powered Monitoring
A battery-powered monitoring product can use the TS912IN for low-voltage analog conditioning while preserving usable signal range. The device accepts supplies from 2.7 V to 16 V, operates from a single or dual supply, and supports rail-to-rail input and output voltage ranges. Its dual channels can implement signal amplification and filtering in a compact PCB area. At 3 V, the approximate 200 µA-per-amplifier supply current helps with energy efficiency, but total current includes sensor excitation, display, communications, and regulator losses that must be evaluated separately.
推薦
Active Analog Filters
The TS912IN can implement active analog filters where low input bias, rail-to-rail signal handling, and low supply current are useful. Its two channels allow a second-order filter to be built with an active stage and a buffer or an additional pole. The 2.7 V minimum supply supports low-energy designs, and rail-to-rail output behavior can improve available signal swing. Component selection should account for the 2 mV maximum input offset, finite gain-bandwidth product, phase response, output loading, and the datasheet-specified 600 Ω and 100 Ω load conditions.
推薦
Low-Voltage Audio and Control Interfaces
The TS912IN can serve low-voltage audio or control interfaces when the signal path requires rail-to-rail input and output swing in a compact supply system. The dual channels can amplify a control input and buffer a reference or feedback path. Operation down to 2.7 V supports single-cell-derived rails, while the 1 pA typical bias current avoids significant loading of high-impedance source nodes. For audio-quality designs, engineers must verify noise, slew rate, gain bandwidth, output current, stability with capacitive loads, and the acceptable distortion characteristics against the manufacturer datasheet.
推薦
Industrial Process Sensing
The TS912IN is suitable for process-sensing front ends that use low-energy sensor excitation and require flexible input range. Its rail-to-rail inputs can accept sensor outputs that move near the supply boundaries, while the two channels can form a differential or referenced signal-conditioning arrangement. The 1 pA typical input bias current is advantageous for resistive sensors with high source impedance. Industrial use also requires checking the verified operating temperature range, ESD requirements, supply ripple behavior, component tolerances, and whether the product needs an automotive-qualified alternative; those qualifications are not established by the supplied snippets.
推薦
工程參考資料，適用於 TS912IN — 比較、設計指引及合規資訊。
選型指南
與替代品比較
| 參數 | 本產品 |
|---|---|
| Package | 8-pin Mini DIP |
| Brand | STMicroelectronics |
| Amplifier Count | 2 channels |
| Supply Voltage Range | 2.7 V to 16 V |
| Input Voltage Range | Rail-to-rail |
| Output Voltage Range | Rail-to-rail |
| Typical Input Bias Current | 1 pA |
| Maximum Input Offset Voltage | 2 mV |
| Supply Current per Amplifier | 200 µA at VCC = 3 V |
| Specified Loads | 600 Ω and 100 Ω |
主要差異化特點
- Very low input bias current (對比General-purpose dual CMOS operational amplifier)
- Low-voltage rail-to-rail operation (對比Dual amplifier requiring a higher minimum supply)
- Low supply consumption (對比Higher-power dual operational amplifier)
- Two amplifier channels in one package (對比Discrete single-channel amplifiers)
設計說明
Place the supply bypass capacitor close to the TS912IN power pins and connect it with a short, low-inductance path. Keep the two amplifier channels physically separated from noisy switching circuitry when one channel handles a precision signal and the other handles a less sensitive function. Route input and feedback traces away from the supply and return-current paths to reduce coupled noise. The verified data confirms low input bias and rail-to-rail operation but does not provide a complete stability or layout specification.
Use guarding or a grounded guard ring around high-impedance input nodes when the source impedance is high. Although the typical input bias current is 1 pA, PCB contamination, connector insulation resistance, and surface leakage can dominate the total error. Keep sensitive inputs away from long exposed pads and moisture-prone areas. Also consider the 2 mV maximum input offset voltage when defining the accuracy of a high-gain stage, because offset and bias error may be amplified together.
Do not assume that rail-to-rail input and output ratings guarantee a full rail-to-rail swing under every load. Verify output-current capability, load impedance, common-mode limits, and output-voltage headroom using the manufacturer datasheet for the selected supply voltage. The verified data specifically mentions 600 Ω and 100 Ω load conditions. Likewise, the minimum 2.7 V supply does not by itself guarantee correct operation for every external network, so prototype the final gain, feedback, and capacitive-load conditions.
合規資訊
The supplied verified search results do not extract explicit RoHS, REACH, AEC-Q100, lead-free, halogen-free, or conflict-minerals statements. Compliance must be confirmed from the current STMicroelectronics product page, material declarations, or the full manufacturer datasheet.