AD820ANZ Low Power FET-Input Op Amp

The AD820ANZ is a high-performance, low-power operational amplifier from Analog Devices Inc., designed for a wide range of applications. Its FET (Field Effect Transistor) input stage ensures low input bias currents, making it an excellent choice for high-impedance sensor amplification and precision integrators.

This op amp operates from a single supply range of 3V to 36V or dual supplies of ±1.5V to ±18V, providing versatility in various power environments. The AD820ANZ is well-suited for battery-powered applications due to its low power consumption, drawing only 800 μA of quiescent current.

The device features a wide bandwidth of 1.8 MHz and a slew rate of 2 V/μs, making it capable of handling a broad spectrum of signals in both audio and data-processing applications. The precision performance of the AD820ANZ is characterized by its low offset voltage of 1 mV max and low offset voltage drift of 2 μV/°C, ensuring stability and accuracy over temperature variations.

The AD820ANZ is also notable for its low noise performance, with a voltage noise density of 12 nV/√Hz at 1 kHz, which is critical for high-fidelity and measurement applications. Additionally, the op amp is designed to be stable with capacitive loads up to 10 pF, a feature that enhances its robustness in feedback applications.

Packaged in an 8-lead PDIP (Plastic Dual In-line Package), the AD820ANZ is straightforward to integrate into a wide range of electronic circuits. Its operational temperature range of -40°C to +85°C ensures reliable performance in diverse environmental conditions.

Whether for medical instrumentation, precision filters, data acquisition systems, or battery-powered devices, the AD820ANZ from Analog Devices Inc. represents a blend of precision, power efficiency, and reliability, making it a smart choice for engineers and designers seeking a high-quality operational amplifier.