Overview
The LM258DG4 is a dual operational amplifier produced by Texas Instruments. It is part of the industry-standard LM258 series, known for its versatility and reliability in a wide range of applications. This device features two high-voltage operational amplifiers, making it suitable for various electronic systems that require stable and accurate signal amplification.
The LM258DG4 is particularly valued for its wide supply voltage range, low quiescent current, and high unity-gain bandwidth, which make it an excellent choice for cost-sensitive and environmentally challenging applications.
Key Specifications
| Parameter | Minimum | Typical | Maximum | Unit |
|---|---|---|---|---|
| Supply Voltage (VS) | 3 | - | 30 | V |
| Differential Input Voltage (VID) | -32 | - | 32 | V |
| Input Voltage (VI) | -0.3 | - | 32 | V |
| Quiescent Current per Amplifier (IQ) | 300 | 460 | 800 | µA |
| Unity-Gain Bandwidth | - | 1.2 | - | MHz |
| Input Offset Voltage (VIO) | - | 3 | - | mV |
| Input Bias Current (IIB) | - | 10 | 35 | nA |
| Operating Ambient Temperature (TA) | -25 | - | 85 | °C |
| ESD Rating (HBM) | - | - | 2000 | V |
Key Features
- Wide Supply Range: The LM258DG4 operates over a supply voltage range of 3V to 30V, making it versatile for various power supply conditions.
- Low Quiescent Current: With a typical quiescent current of 300µA per amplifier, it is energy-efficient and suitable for battery-powered devices.
- Unity-Gain Bandwidth: The device has a unity-gain bandwidth of 1.2MHz, ensuring high-frequency signal handling capabilities.
- Common-Mode Input Range: The common-mode input voltage range includes ground, allowing for direct sensing near ground.
- Internal RF and EMI Filter: Built-in RF and EMI filters enhance the device's performance in noisy environments.
- High ESD Protection: The LM258DG4 offers 2kV HBM ESD protection, making it robust against electrostatic discharge.
- Compact Packaging: Available in various compact packages such as SOIC, TSSOP, and VSSOP, making it suitable for space-constrained designs.
Applications
- Power Supplies and Mobile Chargers: Used in power supply units and mobile chargers due to its stability and efficiency.
- Motor Control: Suitable for controlling various types of motors including AC induction, brushed DC, brushless DC, and stepper motors.
- Desktop PC and Motherboard: Employed in desktop PCs and motherboards for signal amplification and conditioning.
- Home Appliances: Used in washers, dryers, refrigerators, and air conditioners for control and monitoring circuits.
- Uninterruptible Power Supplies (UPS): Utilized in UPS systems to ensure reliable power supply during outages.
- Electronic Point-of-Sale Systems: Applied in electronic point-of-sale systems for accurate and reliable signal processing.
Q & A
- What is the supply voltage range of the LM258DG4?
The LM258DG4 operates over a supply voltage range of 3V to 30V.
- What is the typical quiescent current per amplifier for the LM258DG4?
The typical quiescent current per amplifier is 300µA.
- What is the unity-gain bandwidth of the LM258DG4?
The unity-gain bandwidth is 1.2MHz.
- Does the LM258DG4 have internal RF and EMI filters?
- What is the ESD protection rating of the LM258DG4?
The LM258DG4 has a 2kV HBM ESD protection rating.
- In what types of packages is the LM258DG4 available?
The LM258DG4 is available in SOIC, TSSOP, and VSSOP packages.
- What is the operating ambient temperature range for the LM258DG4?
The operating ambient temperature range is -25°C to 85°C.
- Can the LM258DG4 be used in motor control applications?
- Is the LM258DG4 used in home appliances?
- What are some common applications of the LM258DG4 in computing?
