Overview
The LM6211MFX/NOPB, produced by Texas Instruments, is a low noise, wide bandwidth operational amplifier designed for high-performance applications. It features a CMOS input stage and rail-to-rail output swing, making it suitable for a variety of high-voltage, low-noise systems. The LM6211 operates over a wide supply voltage range of 5V to 24V and is unity gain stable. It is particularly beneficial in applications requiring low input bias currents and high output voltage swing, such as active loop filters for wide-band PLLs and high-fidelity audio amplifiers.
Key Specifications
| Parameter | Value | Conditions |
|---|---|---|
| Supply Voltage Range | 5V to 24V | |
| Unity Gain Bandwidth | 20 MHz | |
| Input Referred Voltage Noise | 5.5 nV/√Hz | At 10 kHz |
| Input Bias Current | 2.3 pA | |
| Output Short Circuit Current | 25 mA (sourcing), 38 mA (sinking) | |
| Slew Rate | 5.6 V/μs | |
| Input Common Mode Range | Includes the negative supply rail | |
| Temperature Range | -40°C to 125°C | |
| Package | SOT-23 |
Key Features
- Wide bandwidth of 20 MHz and low input referred voltage noise of 5.5 nV/√Hz at 10 kHz.
- Low input bias current of 2.3 pA and high input impedance.
- Rail-to-rail output swing and ground-sensing CMOS input stage.
- Low total harmonic distortion of 0.01% at 1 kHz with loads up to 600Ω.
- Low common-mode input capacitance of 5.5 pF.
- Short circuit protection with output current limiting (25 mA sourcing, 38 mA sinking).
- Small SOT-23 package for compact board designs.
Applications
- PLL Loop Filters: Ideal for wide-band PLL synthesizers requiring active loop filters.
- Low Noise Active Filters: Suitable for high-gain and wideband filter applications.
- Strain Gauge Amplifiers: High input impedance and low noise make it suitable for strain gauge applications.
- Low Noise Microphone Amplifiers: Low input bias current and high fidelity make it ideal for audio applications.
- Industrial Control Systems: Versatile operation over a wide supply voltage range.
- Portable Instrumentation: Low power consumption and compact size.
Q & A
- What is the supply voltage range of the LM6211?
The LM6211 operates over a supply voltage range of 5V to 24V.
- What is the unity gain bandwidth of the LM6211?
The unity gain bandwidth of the LM6211 is 20 MHz.
- What is the input referred voltage noise of the LM6211?
The input referred voltage noise of the LM6211 is 5.5 nV/√Hz at 10 kHz.
- What is the input bias current of the LM6211?
The input bias current of the LM6211 is 2.3 pA.
- What is the output short circuit current of the LM6211?
The output short circuit current of the LM6211 is 25 mA (sourcing) and 38 mA (sinking).
- What is the slew rate of the LM6211?
The slew rate of the LM6211 is 5.6 V/μs.
- What is the temperature range of the LM6211?
The temperature range of the LM6211 is -40°C to 125°C.
- In what package is the LM6211 available?
The LM6211 is available in the SOT-23 package.
- What are some typical applications of the LM6211?
Typical applications include PLL loop filters, low noise active filters, strain gauge amplifiers, low noise microphone amplifiers, industrial control systems, and portable instrumentation.
- Why is the LM6211 suitable for high-fidelity audio applications?
The LM6211 is suitable for high-fidelity audio applications due to its low total harmonic distortion of 0.01% at 1 kHz with loads up to 600Ω and its low input referred voltage noise.
