Texas Instruments LM358N – Dual Operational Amplifier for Analog Signal Conditioning
O LM358N by Texas Instruments is a versatile dual-operational amplifier featuring a wide supply voltage range, low power consumption, and compatibility with single-supply or dual-supply configurations. This op-amp is designed to operate from as low as 3 V up to 32 V (or ±1.5 V to ±16 V in dual supply), making it ideal for a wide range of general-purpose analog applications.
Key Functional Benefits
The LM358N integrates two independent high-gain amplifiers in a single 8-pin DIP or SOIC package. Its input common-mode range includes ground, which simplifies single-supply operation. The device’s output can also swing to ground in single-supply configurations, ensuring effective operation in signal chains requiring full dynamic range.
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Especificações técnicas e parâmetros
| Parâmetro | Valor | Unidade |
|---|---|---|
| Number of Amplifiers | 2 | – |
| Gama de tensão de alimentação | 3 to 32 (±1.5 to ±16) | V |
| Tensão de desvio de entrada (máx.) | 7 | mV |
| Corrente de polarização de entrada | 20 | nA |
| Produto de largura de banda de ganho | 1.1 | MHz |
| Taxa de variação | 0.3 | V/µs |
| Quiescent Current per Amplifier | 700 | µA |
| Gama de temperaturas de funcionamento | 0 to +70 | °C |
| Opções de pacote | PDIP-8, SOIC-8 | – |
Why Choose LM358N Over Standard Op-Amps
- Single-Supply Capability: Operates effectively with a single supply, making it optimal for cost-sensitive applications.
- Baixo consumo de energia: The 700 µA per channel quiescent current helps extend battery life in portable systems.
- Cost-Efficient & Versatile: Combines solid performance with affordability, suitable for commercial and industrial electronics.
- Proven Reliability: Backed by Texas Instruments’ industry-standard quality and reliability testing.
Aplicações típicas
- Sensor Signal Conditioning in Industrial Automation
- Active Filters and Signal Amplification Circuits
- Automotive Monitoring and Diagnostics
- Medical Device Analog Front Ends
- Battery-Powered Measurement Instruments
About Texas Instruments Quality
Texas Instruments maintains strict quality assurance and validation protocols. The LM358N is built to withstand environmental and electrical stress factors across standard industrial temperature ranges. This makes it an excellent choice for designs requiring operational reliability in varying thermal and electrical conditions.
Perguntas frequentes (FAQ)
Can the LM358N operate on a single 5V power supply?
Yes, the LM358N can function on a single supply as low as 3V, making it suitable for 5V systems often used in digital and embedded electronics.
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Does this op-amp require external frequency compensation?
No, it includes internal compensation, which simplifies design and ensures stability without additional components.
Is the LM358N suitable for battery-powered devices?
Absolutely. Its low quiescent current (700 µA/channel) makes it highly efficient for battery-operated or energy-sensitive designs.
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What package types are available for the LM358N?
The device is available in PDIP-8 and SOIC-8 packages, offering flexibility for both through-hole and surface-mount designs.
What’s the typical use case for this operational amplifier?
Common use cases include analog signal amplification, low-power filtering, and interfacing with sensors in automation or automotive systems.
