Overview
The LF411CDR is a JFET-input operational amplifier produced by Texas Instruments. It is a low-cost, high-speed device known for its very low input offset voltage and low input bias and offset currents. The LF411CDR is characterized by its high input impedance, low total harmonic distortion, and low 1/f noise corner. This operational amplifier is available in both plastic Small-Outline (D) and Standard (P) DIP packages, making it versatile for various applications.
Key Specifications
| Parameter | Typical Value | Maximum Value | Unit |
|---|---|---|---|
| Input Offset Voltage (VIO) at 25°C | 0.8 mV | 2 mV | mV |
| Input Bias Current | 50 pA | 200 pA | pA |
| Input Noise Voltage at 1 kHz | 18 nV/√Hz | nV/√Hz | |
| Input Noise Current at 1 kHz | 0.01 pA/√Hz | pA/√Hz | |
| Supply Current | 2 mA | 3.4 mA | mA |
| Unity-Gain Bandwidth | 3 MHz | MHz | |
| Slew Rate | 13 V/µs | V/µs | |
| Common Mode Rejection Ratio (CMRR) | 100 dB | 70 dB | dB |
| Operating Temperature Range | 0°C to 70°C | °C | |
| Total Supply Voltage | 7 V to 36 V | V |
Key Features
- Low input bias current: 50 pA typical
- Low input noise current: 0.01 pA/√Hz typical
- High input impedance: 10^12 Ω typical
- Low total harmonic distortion
- Low 1/f noise corner: 50 Hz typical
- Fast slew rate: 13 V/µs typical
- High gain-bandwidth product: 3 MHz typical
- Low supply current: 2 mA typical
- Available in plastic Small-Outline (D) and Standard (P) DIP packages
Applications
The LF411CDR is suitable for a variety of high-speed and precision applications, including:
- High-speed integrators
- Digital-to-analog converters
- Sample-and-hold circuits
- Audio and video processing
- Medical and industrial instrumentation
Q & A
- What is the typical input offset voltage of the LF411CDR?
The typical input offset voltage is 0.8 mV at 25°C.
- What is the maximum input bias current of the LF411CDR?
The maximum input bias current is 200 pA.
- What is the unity-gain bandwidth of the LF411CDR?
The unity-gain bandwidth is 3 MHz typical.
- What is the slew rate of the LF411CDR?
The slew rate is 13 V/µs typical.
- What are the package options for the LF411CDR?
The LF411CDR is available in plastic Small-Outline (D) and Standard (P) DIP packages.
- What is the operating temperature range for the LF411CDR?
The operating temperature range is 0°C to 70°C for the LF411C and –40°C to 85°C for the LF411I.
- What is the total supply voltage range for the LF411CDR?
The total supply voltage range is from 7 V to 36 V.
- What are some common applications of the LF411CDR?
Common applications include high-speed integrators, digital-to-analog converters, sample-and-hold circuits, and audio and video processing.
- Is the LF411CDR suitable for high-speed applications?
- What is the common mode rejection ratio (CMRR) of the LF411CDR?
The CMRR is 100 dB typical.
