Overview
The LM348DR is a quadruple, independent, high-gain, internally compensated operational amplifier produced by Texas Instruments. It is designed to have operating characteristics similar to the µA741. This device is part of the LM148, LM248, and LM348 family, which are known for their low supply-current drain and minimal input bias and offset currents. The LM348DR is particularly suited for applications requiring multiple amplifiers in a single package, offering a compact and efficient solution.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Package Type | SOIC (D) | - |
| Pins | 14 | - |
| Operating Temperature Range | 0 to 70 | °C |
| Supply Voltage (VCC+) | 4 to 18 | V |
| Supply Voltage (VCC-) | -4 to -18 | V |
| Differential Input Voltage (VID) | 36 | V |
| Input Offset Voltage (VIO) | 1 to 6 | mV |
| Input Offset Current (IIO) | 4 to 50 | nA |
| Input Bias Current (IIB) | 30 to 200 | nA |
| Unity-Gain Bandwidth (AVD) | 1 | MHz |
| Phase Margin | 60° | - |
| Common Mode Rejection Ratio (CMRR) | 70 to 90 | dB |
| Supply Current (ICC) per Amplifier | 0.6 | mA |
Key Features
- µA741 Operating Characteristics: Designed to be interchangeable with industry-standard µA741 operational amplifiers.
- Low Supply-Current Drain: Typical 0.6 mA per amplifier.
- Low Input Offset Voltage and Current: Ensuring high precision and minimal drift.
- Class AB Output Stage: Provides efficient operation and high output current capability.
- Input/Output Overload Protection: Enhances reliability and durability.
- Internally Compensated: Simplifies circuit design and ensures stability.
Applications
- Audio and Video Equipment: Suitable for amplifying audio and video signals due to its high gain and low noise characteristics.
- Medical Devices: Used in medical equipment where precision and reliability are critical.
- Industrial Control Systems: Ideal for various industrial applications requiring multiple amplifiers in a compact form.
- Automotive Systems: Can be used in automotive electronics for signal processing and amplification.
- General Purpose Amplification: Applicable in any scenario requiring high-gain, low-power operational amplifiers.
Q & A
- What is the LM348DR operational amplifier?
The LM348DR is a quadruple, independent, high-gain, internally compensated operational amplifier produced by Texas Instruments.
- What are the key features of the LM348DR?
Key features include µA741 operating characteristics, low supply-current drain, low input offset voltage and current, Class AB output stage, and input/output overload protection.
- What is the operating temperature range of the LM348DR?
The operating temperature range is 0°C to 70°C.
- What is the supply voltage range for the LM348DR?
The supply voltage range is from ±4V to ±18V.
- What is the typical input offset voltage of the LM348DR?
The typical input offset voltage is 1 to 6 mV.
- What is the unity-gain bandwidth of the LM348DR?
The unity-gain bandwidth is 1 MHz.
- Is the LM348DR RoHS compliant?
Yes, the LM348DR is RoHS compliant and also meets Green (low halogen) requirements.
- What are some common applications of the LM348DR?
Common applications include audio and video equipment, medical devices, industrial control systems, automotive systems, and general-purpose amplification.
- How many amplifiers are included in the LM348DR package?
The LM348DR includes four independent operational amplifiers in a single package.
- What is the package type of the LM348DR?
The package type is SOIC (D) with 14 pins.
- Is the LM348DR suitable for high-temperature applications?
No, the LM348DR is not suitable for high-temperature applications, with an operating temperature range limited to 0°C to 70°C.
