Overview
The LF353N/NOPB is a dual JFET-input operational amplifier produced by Texas Instruments. This component is designed for applications requiring high input impedance, low input bias current, and low noise. It is part of the LF series, known for its cost-effectiveness and high performance. The LF353N/NOPB is particularly suitable for high-speed integrators, fast D/A converters, and sample-and-hold circuits. Its market positioning targets engineers and designers in the electronics industry who need reliable and efficient operational amplifiers for precision analog circuits.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Input Offset Voltage | 10 | mV | Internal Trim |
| Input Bias Current | 50 | pA | |
| Input Noise Voltage | 25 | nV/√Hz | |
| Input Noise Current | 0.01 | pA/√Hz | |
| Gain Bandwidth Product | 4 | MHz | |
| Slew Rate | 13 | V/μs | |
| Supply Current | 3.6 | mA | |
| Input Impedance | 10^12 | Ω | |
| Total Harmonic Distortion | ≤0.02 | % | |
| 1/f Noise Corner | 50 | Hz | |
| Settling Time (0.01%) | 2 | μs |
Key Features
- High input impedance and low input bias current for precision applications.
- Low noise and low offset voltage drift ensure accurate signal processing.
- Wide gain bandwidth and high slew rate support high-speed operations.
- Low power consumption makes it suitable for battery-powered devices.
- Compatible with standard LM1558 pin configurations for easy upgrades.
Applications
The LF353N/NOPB is widely used in various fields, including industrial automation, consumer electronics, and automotive electronics. Its high-speed performance and precision make it ideal for applications such as high-speed integrators, fast D/A converters, and sample-and-hold circuits. Additionally, its low noise and high input impedance are beneficial in audio processing and sensor signal conditioning. In automotive systems, it can be used in control units and sensor interfaces where reliability and efficiency are critical.
Q & A
1. What is the input offset voltage of the LF353N/NOPB?
The input offset voltage is 10 mV, internally trimmed for precision.
2. What is the typical input bias current?
The typical input bias current is 50 pA.
3. What is the gain bandwidth product of this amplifier?
The gain bandwidth product is 4 MHz.
4. What is the slew rate of the LF353N/NOPB?
The slew rate is 13 V/μs.
5. Is the LF353N/NOPB suitable for low-power applications?
Yes, it has a low supply current of 3.6 mA, making it suitable for low-power applications.
6. What is the input impedance of this operational amplifier?
The input impedance is 10^12 Ω.
7. Can the LF353N/NOPB be used in audio applications?
Yes, its low noise and high input impedance make it suitable for audio processing.
8. Is the LF353N/NOPB compatible with LM1558 pin configurations?
Yes, it is compatible with standard LM1558 pin configurations for easy upgrades.
9. What is the settling time for 0.01% accuracy?
The settling time is 2 μs for 0.01% accuracy.
10. What are the typical applications of the LF353N/NOPB?
Typical applications include high-speed integrators, fast D/A converters, and sample-and-hold circuits.
