Overview
The LM258H, produced by National Semiconductor, is a dual operational amplifier designed for a wide range of applications. It is particularly well-suited for single-supply operation, making it a versatile choice for various electronic systems. This component is known for its high gain, internal frequency compensation, and low power consumption, which are essential for battery-operated devices and other power-sensitive applications. The LM258H is commonly used in transducer amplifiers, DC gain blocks, and conventional op-amp circuits, offering a reliable and efficient solution for signal processing needs.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Offset Voltage | 2 | mV | Typical |
| Input Bias Current | 45 | nA | Typical |
| Supply Current | 1 | mA | Typical |
| Output Current | 40 | mA | Max |
| Common-Mode Rejection Ratio | 70 | dB | Min |
| Gain Bandwidth Product | 1 | MHz | Typical |
| Slew Rate | 0.5 | V/µs | Typical |
| Operating Temperature Range | -25 to 85 | °C | |
| Supply Voltage Range | 3 to 32 | V | Single Supply |
| Number of Circuits | 2 |
Key Features
- High gain and internal frequency compensation for stable operation.
- Low power consumption, ideal for battery-operated devices.
- Wide supply voltage range, supporting both single and dual supply configurations.
- High common-mode rejection ratio for improved signal integrity.
- Compatible with all forms of logic, enhancing versatility in various applications.
Applications
The LM258H is widely used in transducer amplifiers, DC gain blocks, and conventional operational amplifier circuits. Its ability to operate from a single power supply makes it particularly useful in digital systems and other applications where additional power supplies are impractical. Typical applications include signal conditioning, active filters, and analog-to-digital converters. The LM258H's low power consumption and high performance also make it suitable for portable and battery-powered devices, such as medical instruments and consumer electronics.
Q & A
What is the typical input offset voltage of the LM258H?
The typical input offset voltage is 2 mV.
What is the maximum output current of the LM258H?
The maximum output current is 40 mA.
What is the common-mode rejection ratio of the LM258H?
The common-mode rejection ratio is at least 70 dB.
What is the gain bandwidth product of the LM258H?
The gain bandwidth product is 1 MHz.
What is the slew rate of the LM258H?
The slew rate is 0.5 V/µs.
What is the operating temperature range of the LM258H?
The operating temperature range is from -25°C to 85°C.
What is the supply voltage range for single supply operation?
The supply voltage range for single supply operation is 3 V to 32 V.
How many operational amplifiers are included in the LM258H?
The LM258H includes two operational amplifiers.
What is the typical supply current of the LM258H?
The typical supply current is 1 mA.
What is the typical input bias current of the LM258H?
The typical input bias current is 45 nA.
