Overview
The LM348DG4 is a quadruple operational amplifier (op amp) produced by Texas Instruments. It is part of the LM148/LM248/LM348 series, which are designed to provide functional characteristics identical to those of the familiar 741 operational amplifier. This device is particularly useful in applications where multiple 741-type amplifiers are required, offering high gain, internal compensation, and low power consumption. The LM348DG4 is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) package, making it suitable for a variety of electronic designs.
Key Specifications
| Parameter | Value | Unit |
|---|---|---|
| Supply Voltage | ±18 | V |
| Differential Input Voltage | ±36 | V |
| Input Offset Voltage | 6.0 - 7.5 | mV |
| Input Offset Current | 75 - 125 | nA |
| Input Bias Current | 325 - 500 | nA |
| Large Signal Voltage Gain | 25 - 15 | V/mV |
| Output Voltage Swing | VS = ±15V, RL = 10 kΩ | - |
| Operating Temperature Range | 0°C to 70°C | - |
| Package Type | SOIC (D) | - |
| Packing Quantity | Tube of 50 | - |
Key Features
- Four independent, high-gain, internally compensated operational amplifiers.
- Class AB output stage with no crossover distortion.
- Low supply current drain: 0.6 mA per amplifier.
- Low input offset voltage: 6 mV.
- Low input offset current: 4 nA.
- Low input bias current: 30 nA.
- High degree of isolation between amplifiers: 120 dB.
- Pin compatible with the LM124.
- Overload protection for inputs and outputs.
Applications
The LM348DG4 is versatile and can be used in various applications where multiple 741-type operational amplifiers are needed. Some common uses include:
- Audio and radio frequency (RF) amplifiers.
- Temperature sensors and other analog integrated circuit applications.
- Any scenario requiring multiple matched amplifiers or high packing density.
Q & A
- What is the LM348DG4?
The LM348DG4 is a quadruple operational amplifier produced by Texas Instruments, designed to provide functional characteristics similar to the 741 op amp. - What is the package type of the LM348DG4?
The LM348DG4 is packaged in a 14-pin SOIC (Small Outline Integrated Circuit) package. - What is the operating temperature range of the LM348DG4?
The operating temperature range is 0°C to 70°C. - What is the supply voltage range for the LM348DG4?
The supply voltage range is ±18V. - What are the key features of the LM348DG4?
Key features include low supply current, low input offset voltage, low input offset current, and high isolation between amplifiers. - Where can the LM348DG4 be used?
It can be used in audio and RF amplifiers, temperature sensors, and any application requiring multiple matched amplifiers. - How many amplifiers are included in the LM348DG4?
The LM348DG4 includes four independent operational amplifiers. - What is the input offset voltage of the LM348DG4?
The input offset voltage is 6.0 to 7.5 mV. - Does the LM348DG4 have overload protection?
Yes, it has overload protection for inputs and outputs. - Is the LM348DG4 RoHS compliant?
Yes, the LM348DG4 is RoHS compliant and free of Sb/Br.
