TS942AID - Dual Rail-to-Rail Op Amp, 2.5-10V | STMicroelectronics
部品番号: TS942AID ✓ 生産中TS942AID 概要
An operational amplifier is an active semiconductor device that uses high open-loop gain to amplify the difference between two input voltages. The TS942 belongs to the STMicroelectronics TS94x family, which is characterized for operation from 2.5 V to 10 V. Rail-to-rail output capability allows the output voltage to approach the supply rails more closely than a conventional fixed-output amplifier, making the device useful in battery-powered, portable, measurement, and signal-conditioning systems.
The TS942AID combines two amplifiers in one 8-SOIC package. The verified product information identifies the part as a standard general-purpose dual amplifier with rail-to-rail operation. Its low-power characteristics and 5 mA per channel output-current capability make it suitable for low-voltage analog systems where component count, supply efficiency, and board area are important. The device can be used for sensor interfaces, instrumentation amplifiers, filtering, comparators, and general voltage amplification.
The TS942AID is supplied in an 8-SOIC package, providing a standard surface-mount footprint for leaded analog designs. The dual-channel configuration allows independent signal paths to share one package while preserving the familiar operational-amplifier pin arrangement. Because the device is specified down to 2.5 V, it is appropriate for systems using a 3 V or 3.3 V rail, although the exact input and output common-mode limits should be checked in the manufacturer datasheet for the operating condition.
For low-voltage designs, pay attention to output swing, input common-mode range, noise, offset voltage, and stability with the selected load. Place bypass capacitors close to the supply pins and route sensitive input signals away from high-current switching paths. The 8-SOIC footprint also makes the TS942AID convenient for designs that need a straightforward replacement footprint rather than a fine-pitch or exposed-pad package.
This product page combines the TS942AID manufacturer family information, exact distributor listing details, package identification, application guidance, and a practical comparison with verified drop-in alternatives. It is intended to help engineers evaluate the TS942AID for 2.5 V to 10 V dual rail-to-rail analog designs and identify compatible replacement options.
ドロップイン代替品: TS942AID — 同一パッケージでピン互換。PCBの作り直しが必要な異なるパッケージの部品は除外されています。
このシリーズのバリエーション
同一シリーズでドロップイン互換のモデル: TS942AID （同一形状・フットプリント） — 相違点: Number of Amplifier Channels, Number of Pins, Package.
TS942AIDT
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LMC6442AIMX/NOPB
✅ ドロップイン📋 参考代替品（カタログ未掲載）
LMC6442IMX/NOPB
✅ ドロップイン📋 参考代替品（カタログ未掲載）
TS942AID 最大定格＆電気的特性
| Product Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 |
| Supply Voltage Range | 2.5 V to 10 V |
| 動作温度範囲 | -40 °C to +85 °C |
| 出力タイプ | Rail-to-rail |
| Input Bias Current | 1 pA |
| Output Current per Channel | 5 mA |
| 電源電流 | 1.2 µA per channel |
| Input Offset Voltage | 5000 µV maximum |
| パッケージ | 8-SOIC (0.154 inch, 3.90 mm width) |
| 実装タイプ | Surface mount |
| ピン数 | 8 |
| Product Classification | Standard general-purpose amplifier |
| Technology | BiCMOS |
TS942AID 8-soic (0.154 inch, 3.90 mm width) ピン配置ガイド
TS942AID (8-soic (0.154 inch, 3.90 mm width) パッケージ) のピン配置。 このアナログコンポーネントは、入力、出力、および電源ピンを備えています。オフセットナル、補償、イネーブルピンの設定については、メーカーのデータシートを参照してください。信号調整やアンプ回路に最適です。
詳細なピン配置データはありません: TS942AID.
詳細は データシート をご参照ください。
主な用途
TS942AID の用途: 6 件s: Low-Voltage Sensor Signal Conditioning, Battery-Powered Measurement Equipment, Active Filtering and Signal Conditioning, Instrumentation and Industrial Control, Portable Medical and Diagnostic Interfaces, Audio and Low-Level Analog Preamplification.
Low-Voltage Sensor Signal Conditioning
The TS942AID fits low-voltage sensor front ends where two amplifier channels are needed in a compact 8-SOIC package. Its 2.5 V to 10 V supply range supports 3 V and 3.3 V instrumentation, while the rail-to-rail output characteristic helps preserve signal swing near the supply limits. The 1 pA input bias-current figure is especially useful for high-impedance sources, provided the sensor output remains inside the amplifier's valid input common-mode range. Use one channel for amplification and the other for filtering or buffering, and verify offset, noise, and common-mode behavior in the manufacturer datasheet.
おすすめ
Battery-Powered Measurement Equipment
The TS942AID is suitable for battery-powered measurement equipment because the TS94x family operates from 2.5 V to 10 V and is specified over -40 °C to +85 °C. The dual-channel 8-SOIC arrangement reduces board area compared with two separate single amplifiers. With approximately 1.2 µA supply current per channel listed for the TS942 family, it can support low-power sensor, diagnostic, and portable measurement systems. The actual energy budget depends on load current, operating mode, leakage, and the surrounding power-management circuit.
おすすめ
Active Filtering and Signal Conditioning
The TS942AID can implement active filters and general-purpose signal-conditioning stages when the circuit operates within the TS94x voltage and temperature limits. Its two channels allow a filter stage and a buffer stage to be placed in one 8-SOIC package, simplifying dual-channel boards. Rail-to-rail outputs can help preserve amplitude in low-voltage systems, while the compact package supports dense analog layouts. Choose external resistor and capacitor values from the intended transfer function, then verify noise, gain-bandwidth behavior, and load stability in the datasheet.
おすすめ
Instrumentation and Industrial Control
The TS942AID is appropriate for industrial control and instrumentation circuits requiring two analog channels in a standard surface-mount package. The -40 °C to +85 °C operating range supports many commercial and industrial environments, and the 2.5 V to 10 V supply specification permits operation from common low-voltage rails. The dual topology is useful for amplifying one sensor while buffering a reference or driving an auxiliary analog node. Confirm input range, output swing, offset, and noise requirements against the production sensor and fault conditions.
おすすめ
Portable Medical and Diagnostic Interfaces
The TS942AID can be evaluated for portable diagnostic and medical-interface signal paths that use low-voltage analog front ends. Its dual rail-to-rail amplifier channels, 8-SOIC format, and 2.5 V minimum supply operation are useful for compact systems that need amplification and buffering without a larger quad package. The device is not automatically qualified for every medical design; use the manufacturer documentation for electrical limits, and apply the applicable risk-management, isolation, and regulatory requirements of the finished equipment.
おすすめ
Audio and Low-Level Analog Preamplification
The TS942AID may be used for low-level audio preamplification or other small-signal analog stages where a compact dual amplifier and low-voltage operation are priorities. The rail-to-rail output characteristic helps maintain signal swing in 3 V or 3.3 V systems, and the two channels can support a stereo preamp or an amplification-plus-buffering arrangement. The device is described as a general-purpose amplifier rather than a dedicated audio part, so verify the required bandwidth, noise, distortion, output-load capability, and channel-to-channel behavior in the manufacturer datasheet.
おすすめ
おすすめ製品の概要
エンジニアリング参考データ: TS942AID — 比較、設計ガイダンス、コンプライアンス情報。
選定ガイド
代替品との比較
| パラメータ | この製品 | TS942AIDT | LMC6442AIMX/NOPB | LMC6442IMX/NOPB |
|---|---|---|---|---|
| Package | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Brand | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments |
| Amplifier Channels | 2 | 2 | 2 | 2 |
主な差別化要因
- Dual rail-to-rail channels in one 8-SOIC package （vs LMC6442AIMX/NOPB)
- Same-manufacturer TS942 family option （vs TS942AIDT)
- Low-voltage operation for compact analog systems （vs LMC6442IMX/NOPB)
設計ノート
Design the TS942AID supply rails within the 2.5 V to 10 V family operating range and account for the voltage difference between the supply and the signal being amplified. Place local bypass capacitors close to the supply pins and use a low-impedance ground return. Because the device is specified at 2.5 V minimum, validate input common-mode and output-swing requirements at the lowest system supply, not only at the nominal rail.
Keep the two input traces short and route them away from switching nodes, high-current load paths, and inductors. Connect the exposed analog ground reference cleanly to the circuit ground plane, and keep feedback components close to the amplifier pins to reduce parasitic resistance and capacitance. The 8-SOIC footprint supports conventional surface-mount routing, but the manufacturer pin-description table must govern the final connections.
Do not assume that rail-to-rail output operation guarantees unrestricted input common-mode range or full output swing under every load. Check the TS94x datasheet for the exact input and output limits, offset voltage, bias current, and stability conditions. When replacing TS942AID with an LMC6442 candidate, verify those parameters rather than relying only on the 8-SOIC footprint.
コンプライアンス情報
The verified product information confirms the STMicroelectronics TS94x family, 2.5 V to 10 V operation, -40 °C to +85 °C temperature range, and 8-SOIC package. Specific RoHS, REACH, AEC-Q100, lead-free, halogen-free, and conflict-minerals statements require confirmation from the applicable manufacturer documentation.