TS942AID - Dual Rail-to-Rail Op Amp, 2.5-10V | STMicroelectronics
N.º da peça: TS942AID ✓ AtivoTS942AID Visão geral
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.
Alternativas drop-in para TS942AID — mesmo encapsulamento, compatível pino a pino. Peças de encapsulamento diferente que exigem retrabalho na PCB são excluídas.
Variantes desta série
Modelos da mesma série compatíveis como drop-in com TS942AID (mesmo formato e footprint) — diferindo em Number of Amplifier Channels, Number of Pins, Package.
TS942AIDT
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LMC6442AIMX/NOPB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
LMC6442IMX/NOPB
✅ Drop-In📋 Alternativa de referência (fora do catálogo)
TS942AID Classificações máximas e características elétricas
| Product Type | Dual operational amplifier |
| Number of Amplifier Channels | 2 |
| Supply Voltage Range | 2.5 V to 10 V |
| Faixa de temperatura de operação | -40 °C to +85 °C |
| Tipo de saída | Rail-to-rail |
| Input Bias Current | 1 pA |
| Output Current per Channel | 5 mA |
| Corrente de alimentação | 1.2 µA per channel |
| Input Offset Voltage | 5000 µV maximum |
| Encapsulamento | 8-SOIC (0.154 inch, 3.90 mm width) |
| Tipo de montagem | Surface mount |
| Número de pinos | 8 |
| Product Classification | Standard general-purpose amplifier |
| Technology | BiCMOS |
Guia de Configuração de Pinos do TS942AID 8-soic (0.154 inch, 3.90 mm width)
Configuração de pinos para TS942AID (pacote 8-soic (0.154 inch, 3.90 mm width)). Este componente analógico possui pinos de entrada, saída e alimentação. Consulte o datasheet do fabricante para configurações de offset null, compensação e pino de enable. Ideal para circuitos de condicionamento de sinal e amplificadores.
Nenhum dado detalhado de pinagem disponível para TS942AID.
Consulte a ficha técnica para a configuração completa dos pinos.
Aplicações típicas
TS942AID é adequado para 6 aplicaçãos: 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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
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.
Recomendado
Resumo dos produtos recomendados
Dados de referência de engenharia para TS942AID — comparação, orientação de projeto e informações de conformidade.
Guia de seleção
Comparação com alternativas
| Parâmetro | Este produto | 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 |
Principais diferenciais
- 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)
Notas de projeto
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.
Informações de conformidade
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.