OPA4820IDR Datasheet/PDFOPA4820IDR Application Field and Working Principle
The OPA4820IDR is a high-precision, low-power instrumentation amplifier and buffer amplifier IC. It is designed to address a wide range of applications and user needs. The OPA4820IDR operates off a single power supply and contains two-stage differential amplifiers and buffers with precision output drivers. This IC offers a very low noise figure and wide dynamic range, making it suitable for audio and video applications. The OPA4820IDR is also featured in a variety of industrial and medical electronics equipment.
OPA4820IDR Features
The OPA4820IDR features low-power operation, zero-drift, low noise, and wide dynamic range. The amplifier is rated for a current dissipation of only 1.3 mA and operates from a single power supply of 2.7 V to 12 V. It has a high gain of 80 dB and an offset voltage specification of 10 mV. The OPA4820IDR also features a very low input bias current of 0.1 pA and a low input off-set voltage of 2.5 mV. The wide common mode range offers excellent noise immunity and is suitable for bridging and grounding a variety of signals.
OPA4820IDR Operation
The OPA4820IDR is designed to provide high precision linear amplification and buffering. It operates using an input stage and a two-stage differential amplifier to provide an output that is highly accurate. The input stage has a wide input dynamic range and low input offset voltage, which enables low voltage signal sources to provide a low noise output. The input stage also has a wide common-mode range to provide excellent noise immunity for a variety of application circuits. The two-stage differential amplifier has a gain of 80 dB and a low offset voltage specification of 10 mV. The differential amplifier is followed by a buffer stage to drive the signal to the output stage. The output stage has an slew rate of 1.2 V/us and can provide a supply current of up to 8 mA.
OPA4820IDR Applications
The OPA4820IDR is suitable for use in low-voltage, high-precision signal processing applications. It can be used in audio and video applications, such as active speakers, audio mixers, and line level amplifiers. It is also featured in industrial and medical electronics equipment such as Pulse Oximeters, Electrocardiographs, Autoclaves, and other medical devices. It can also be used in a variety of measurement, monitoring, and control applications, such as bridge and weigh scales, industrial process controllers, and temperature or pressure sensors.
Conclusion
The OPA4820IDR is a high-precision, low-power instrumentation amplifier and buffer amplifier IC. It is designed to address a wide range of applications and user needs. The OPA4820IDR operates off a single power supply and contains two-stage differential amplifiers and buffers with precision output drivers. This IC offers a very low noise figure and wide dynamic range, making it suitable for audio and video applications. The OPA4820IDR is also featured in a variety of industrial and medical electronics equipment.