The AD549LH from Analog Devices Inc. is a monolithic electrometer operational amplifier with ultra-low input bias current. Designed for applications requiring both high precision and high input impedance, this operational amplifier is a top choice for professionals in the fields of medical instrumentation, electrochemistry, and sensitive transducer amplification.

Key Features

• Ultra-Low Input Bias Current: The AD549LH boasts an input bias current of typically 60 femtoamperes, making it ideal for applications where current leakage can significantly affect performance.
• High Input Impedance: With an input impedance of 1015 ohms in parallel with 4 pF, this op-amp ensures minimal loading on high-impedance sources.
• Low Offset Voltage: The offset voltage is typically 1 mV, which enhances the accuracy of the amplifier in precision applications.
• Low Noise: A voltage noise density of 1.0 µV p-p (0.1 Hz to 10 Hz) ensures a clean signal amplification, critical for sensitive measurements.
• High Gain: With an open-loop gain of 5 x 10^12 V/V, the AD549LH ensures a high level of amplification without the need for external components.

Applications

• Electrometer Amplifiers
• Photodiode Amplifiers
• Medical Instrumentation
• High Impedance Buffers
• Electrochemistry

Product Specifications

The AD549LH is packaged in a hermetically sealed TO-99 can, ensuring reliable performance in harsh environments. With its exceptional precision and stability, the AD549LH is a solid choice for those who require the utmost in operational amplifier performance.