FEATURES
2(Typical 24V Supply Unless Otherwise Noted)
• Supply Voltage Range 5V to 24V
• Input Referred Voltage Noise 5.5 nV/√Hz
• Unity Gain Bandwidth 20 MHz
• 1/f Corner Frequency 400 Hz
• Slew Rate 5.6 V/μs
• Supply Current 1.05 mA
• Low Input Capacitance 5.5 pF
• Temperature Range -40°C to 125°C
• Total Harmonic Distortion 0.01% @ 1 kHz,
600Ω
• Output Short Circuit Current 25 mA

APPLICATIONS
• PLL Loop Filters
• Low Noise Active Filters
• Strain Gauge Amplifiers
• Low Noise Microphone Amplifiers

DESCRIPTION
The LM6211 is a wide bandwidth, low noise op amp with a wide supply voltage range and a low input bias
current. The LM6211 operates with a single supply voltage of 5V to 24V, is unity gain stable, has a groundsensing
CMOS input stage, and offers rail-to-rail output swing.
The LM6211 is designed to provide optimal performance in high voltage, low noise systems. The LM6211 has a
unity gain bandwidth of 20 MHz and an input referred voltage noise density of 5.5 nV/√Hz at 10 kHz. The
LM6211 achieves these specifications with a low supply current of only 1 mA. The LM6211 has a low input bias
current of 2.3 pA, an output short circuit current of 25 mA and a slew rate of 5.6 V/us. The LM6211 also features
a low common-mode input capacitance of 5.5 pF which makes it ideal for use in wide bandwidth and high gain
circuits. The LM6211 is well suited for low noise applications that require an op amp with very low input bias
currents and a large output voltage swing, like active loop-filters for wide-band PLLs. A low total harmonic
distortion, 0.01% at 1 kHz with loads as high as 600Ω, also makes the LM6211 ideal for high fidelity audio and
microphone amplifiers.
The LM6211 is available in the small SOT-23 package, allowing the user to implement ultra-small and cost
effective board layouts.