Overview
The LM358ST, produced by STMicroelectronics, is a low-power dual operational amplifier designed to operate from a single power supply over a wide range of voltages. This component consists of two independent, high-gain, internally frequency-compensated op amps. It is particularly suited for applications in single power supply systems, such as transducer amplifiers, DC gain blocks, and conventional op amp circuits. The LM358ST can be directly supplied with standard voltages like 5 V, making it compatible with logic systems and providing the necessary interface electronics without additional power supplies.
Key Specifications
| Characteristic | Symbol | Unit | Min | Typ | Max |
|---|---|---|---|---|---|
| Input Offset Voltage | VIO | mV | -2.0 | - | 7.0 |
| Input Bias Current | IB | nA | - | 20 | - |
| Input Offset Current | IOS | nA | - | 2 | - |
| DC Voltage Gain | - | dB | - | 100 | - |
| Bandwidth (Unity Gain) | - | MHz | - | 1.1 | - |
| Supply Current per Channel | ICC | mA | 0.7 | 1.2 | - |
| Operating Temperature Range | - | °C | 0 | - | 70 |
| Output Voltage Swing | - | V | 0 | - | VCC - 1.5 |
Key Features
- Frequency compensation implemented internally
- Large DC voltage gain: 100 dB
- Wide bandwidth (unity gain): 1.1 MHz (temperature compensated)
- Very low supply current per channel, essentially independent of supply voltage
- Low input bias current: 20 nA (temperature compensated)
- Low input offset voltage: 2 mV
- Low input offset current: 2 nA
- Input common-mode voltage range includes negative rails
- Differential input voltage range equal to the power supply voltage
- Large output voltage swing from 0 V to (VCC - 1.5 V)
Applications
The LM358ST is versatile and can be used in various applications, including:
- Transducer amplifiers
- DC gain blocks
- Conventional op amp circuits in single power supply systems
- Interface electronics in logic systems
Q & A
- What is the typical input bias current of the LM358ST?
The typical input bias current is 20 nA.
- What is the DC voltage gain of the LM358ST?
The DC voltage gain is 100 dB.
- What is the bandwidth (unity gain) of the LM358ST?
The bandwidth (unity gain) is 1.1 MHz.
- What is the operating temperature range of the LM358ST?
The operating temperature range is from 0°C to 70°C.
- Can the LM358ST operate from a single power supply?
- What is the output voltage swing of the LM358ST?
The output voltage swing is from 0 V to (VCC - 1.5 V).
- What are some common applications of the LM358ST?
- Is the LM358ST suitable for use in logic systems?
- What is the input common-mode voltage range of the LM358ST?
- How does the supply current of the LM358ST vary with supply voltage?
