Overview
The LF347MX is a high-performance JFET-input operational amplifier manufactured by Texas Instruments. This IC is designed for applications requiring low input bias and offset currents, high input impedance, and wide bandwidth. It is part of the LF series, which is known for its precision and reliability in analog signal processing. The LF347MX is particularly suited for audio processing, instrumentation, and active filtering applications, making it a popular choice among engineers and designers in the electronics industry.
Key Specifications
| Parameter | Value | Unit | Notes |
|---|---|---|---|
| Number of Channels | 4 | Quad operational amplifier | |
| Supply Voltage | ±18 | V | Maximum |
| Input Bias Current | 200 | pA | Typical |
| Input Offset Voltage | 10 | mV | Maximum |
| Gain Bandwidth Product | 4 | MHz | Typical |
| Slew Rate | 13 | V/µs | Typical |
| Operating Temperature Range | 0 to 70 | °C | |
| Package | SOIC-14 | Surface Mount |
Key Features
- JFET Input Stage: Provides high input impedance and low input bias current, ideal for high-impedance sensor interfaces.
- Wide Bandwidth: Ensures accurate signal amplification across a broad frequency range.
- Low Noise: Suitable for audio and precision measurement applications.
- High Slew Rate: Enables fast signal response, making it suitable for high-speed applications.
- Quad Configuration: Integrates four op-amps in a single package, saving board space and reducing component count.
Applications
The LF347MX is widely used in various fields, including:
- Audio Processing: Its low noise and high bandwidth make it ideal for audio amplifiers and equalizers.
- Instrumentation: High input impedance and precision are beneficial for signal conditioning in measurement devices.
- Active Filters: Its wide bandwidth and low distortion are suitable for designing active low-pass, high-pass, and band-pass filters.
- Industrial Control Systems: Used in analog signal processing and control circuits.
- Medical Equipment: Its precision and reliability are critical in medical instrumentation and diagnostic devices.
Q & A
1. What is the input bias current of the LF347MX?
The typical input bias current is 200 pA.
2. What is the maximum supply voltage for the LF347MX?
The maximum supply voltage is ±18 V.
3. What is the gain bandwidth product of the LF347MX?
The typical gain bandwidth product is 4 MHz.
4. What package does the LF347MX come in?
It is available in an SOIC-14 package.
5. Is the LF347MX suitable for audio applications?
Yes, its low noise and wide bandwidth make it ideal for audio processing.
6. What is the operating temperature range of the LF347MX?
It operates within a range of 0 to 70°C.
7. Can the LF347MX be used in active filters?
Yes, its wide bandwidth and low distortion make it suitable for active filter designs.
8. What is the slew rate of the LF347MX?
The typical slew rate is 13 V/µs.
9. How many channels does the LF347MX have?
It is a quad operational amplifier with four channels.
10. Is the LF347MX suitable for high-impedance sensor interfaces?
Yes, its JFET input stage provides high input impedance, making it ideal for such applications.
