Overview
The LMC6084IMX/NOPB is a precision, low-offset-voltage operational amplifier (op amp) produced by Texas Instruments. This device is part of the LMC608x series, which includes the LMC6081, LMC6082, and LMC6084 models. The LMC6084 is a quad-channel operational amplifier, making it suitable for a wide range of precision circuit applications. It is known for its ultra-low input bias current, high voltage gain, and rail-to-rail output swing, along with an input common-mode voltage range that includes ground. These features make the LMC6084 an excellent choice for applications requiring high precision and low power consumption.
Key Specifications
| Parameter | Typical Value | Minimum Value | Maximum Value | Unit |
|---|---|---|---|---|
| Input Offset Voltage (VOS) | ±150 | ±350 | ±1300 | μV |
| Input Bias Current (IB) | ±10 fA | - | ±4 pA | fA |
| Power Supply Rejection Ratio (PSRR) | 75 dB | 66 dB | 85 dB | dB |
| Common-Mode Rejection Ratio (CMRR) | 75 dB | 66 dB | 85 dB | dB |
| Open-Loop Voltage Gain (AOL) | 400 V/mV | 300 V/mV | 1400 V/mV | V/mV |
| Quiescent Current per Amplifier (IQ) | 0.55 mA | 0.45 mA | 0.85 mA | mA |
| Supply Voltage Range | - | 4.5 V | 15.5 V | V |
| Operating Temperature Range | - | -40°C | 85°C | °C |
Key Features
- Low Offset Voltage: Typically 150 μV, ensuring high precision in applications.
- Single-Supply Operation: Can operate from a single supply voltage ranging from 4.5V to 15.5V.
- Ultra-Low Input Bias Current: As low as 10 fA, which is beneficial for high-impedance sources.
- Rail-to-Rail Output Swing: The output can swing to within 20 mV of the supply rails with a 2 kΩ load.
- High Voltage Gain: Open-loop voltage gain of up to 1400 V/mV.
- Improved Latch-Up Immunity: Enhanced protection against latch-up conditions.
- Low Power Consumption: Quiescent current per amplifier as low as 0.45 mA.
Applications
- Instrumentation Amplifier: Suitable for precision measurement and signal conditioning.
- Photodiode and Infrared Detector Preamplifier: Ideal for amplifying low-level signals from photodiodes and infrared detectors.
- Transducer Amplifier: Used in various transducer applications requiring high precision and low noise.
- Medical Instrumentation: Applicable in medical devices that require precise signal amplification and low power consumption.
- Digital-to-Analog Converter (DAC): Can be used in DAC circuits to improve precision and reduce noise.
- 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 LMC6084?
The typical input offset voltage of the LMC6084 is ±150 μV.
- What is the range of the single-supply voltage for the LMC6084?
The LMC6084 can operate from a single supply voltage ranging from 4.5V to 15.5V.
- What is the ultra-low input bias current of the LMC6084?
The ultra-low input bias current of the LMC6084 is typically 10 fA.
- What is the output swing capability of the LMC6084?
The output can swing to within 20 mV of the supply rails with a 2 kΩ load.
- What is the open-loop voltage gain of the LMC6084?
The open-loop voltage gain of the LMC6084 is up to 1400 V/mV.
- Does the LMC6084 have improved latch-up immunity?
Yes, the LMC6084 has enhanced protection against latch-up conditions.
- What are some common applications of the LMC6084?
Common applications include instrumentation amplifiers, photodiode and infrared detector preamplifiers, transducer amplifiers, medical instrumentation, and more.
- What is the quiescent current per amplifier for the LMC6084?
The quiescent current per amplifier for the LMC6084 is typically 0.55 mA.
- What is the operating temperature range for the LMC6084?
The operating temperature range for the LMC6084 is from -40°C to 85°C.
- What package options are available for the LMC6084?
The LMC6084 is available in a 14-pin SOIC package.
