Overview
The LMC6082AIMX/NOPB is a precision, low-offset-voltage operational amplifier (op amp) produced by Texas Instruments. This dual operational amplifier is part of the LMC608x series, which includes the LMC6081, LMC6082, and LMC6084. The LMC6082 is designed for high precision and low noise applications, making it an excellent choice for various precision circuit requirements.
Key performance characteristics include ultra-low input bias current, high voltage gain, rail-to-rail output swing, and an input common-mode voltage range that includes ground. These features, along with its low offset voltage, make the LMC6082 suitable for a wide range of applications requiring high accuracy and reliability.
Key Specifications
| Parameter | Typical Value | Unit |
|---|---|---|
| Input Offset Voltage (VOS) | ±150 µV | µV |
| Input Bias Current (IB) | ±10 fA | fA |
| Input Offset Current (IOS) | ±5 fA | fA |
| Common-Mode Rejection Ratio (CMRR) | 75 dB (typical) | dB |
| Power-Supply Rejection Ratio (PSRR) | 84 dB (typical) | dB |
| Open-Loop Voltage Gain (AOL) | 400 V/mV (typical) | V/mV |
| Input Voltage Noise Density (en) | 22 nV/√Hz | nV/√Hz |
| Input Current Noise Density (in) | 4 fA/√Hz | fA/√Hz |
| Supply Voltage Range | 4.5V to 15.5V | V |
| Operating Temperature Range | -40°C to +85°C | °C |
| Package Type | 8-Pin SOIC, 8-Pin PDIP |
Key Features
- Low Offset Voltage: Typical value of ±150 µV, ensuring high precision in applications.
- Single-Supply Operation: Operates from 4.5V to 15.5V, making it versatile for various power supply conditions.
- Ultra-Low Input Bias Current: As low as ±10 fA, minimizing the impact on input signals.
- Rail-to-Rail Output Swing: Output voltage can swing to within 20mV of the supply rail with a 2kΩ load.
- High Voltage Gain: Open-loop voltage gain of 400 V/mV (typical), ensuring high amplification accuracy.
- Improved Latch-Up Immunity: Designed to prevent latch-up susceptibility, enhancing reliability.
- High Input Impedance: Input resistance of 10 TΩ, reducing the loading effect on input signals.
Applications
- Instrumentation Amplifier: Ideal for precision measurement and signal conditioning.
- Photodiode and Infrared Detector Preamplifier: Suitable for low-noise amplification of photodiode and infrared detector signals.
- Transducer Amplifier: Used in transducer applications requiring high accuracy and low noise.
- Medical Instrumentation: Applicable in medical devices that require precise signal amplification and processing.
- Digital-to-Analog Converter (DAC): Can be used in DAC circuits to improve signal integrity.
- Charge Amplifier for Piezoelectric Transducer: Suitable for amplifying charge signals from piezoelectric transducers.
- Precision Full-Wave Rectifiers, Integrators, References, and Sample-and-Hold Circuits: Used in various precision analog circuits.
Q & A
- What is the typical input offset voltage of the LMC6082?
The typical input offset voltage is ±150 µV.
- What is the input bias current of the LMC6082?
The input bias current is as low as ±10 fA.
- What is the supply voltage range for the LMC6082?
The supply voltage range is from 4.5V to 15.5V.
- What are the common applications of the LMC6082?
Common applications include instrumentation amplifiers, photodiode and infrared detector preamplifiers, transducer amplifiers, medical instrumentation, and more.
- What is the open-loop voltage gain of the LMC6082?
The open-loop voltage gain is typically 400 V/mV.
- How does the LMC6082 handle latch-up susceptibility?
The LMC6082 is designed with improved latch-up immunity to prevent latch-up susceptibility.
- What is the input impedance of the LMC6082?
The input impedance is 10 TΩ.
- What are the package types available for the LMC6082?
The LMC6082 is available in 8-Pin SOIC and 8-Pin PDIP packages.
- What is the operating temperature range for the LMC6082?
The operating temperature range is from -40°C to +85°C.
- How does the LMC6082 perform in terms of noise?
The LMC6082 has a low input voltage noise density of 22 nV/√Hz and an input current noise density of 4 fA/√Hz.
