OPA343NA/3K

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

Introduction

The OPA343NA/3K is an ultra-high performance, low power monolithic Operational Amplifier (Op Amp) which is designed to operate with a single-supply or dual-supplies. It employs a novel matched Cascode architecture which significantly reduces its β variation over temperature. OPA343NA/3K are ideally suited for precision instrumentation, isolation amplifiers, filters, ADCs and DACs, using both single supply and dual singly-ended power supplies.

Applications

The OPA343NA/3K is designed to operate with a single-supply or dual-supplies, which makes it especially good choice in both industrial and commercial applications. It is frequently used in temperature sensors, electrolyte level detectors, vibration sensors, motion sensing, precision filters and anti-aliasing. Additionally, its low power consumption and versatile single-ended input and output characteristics make it an ideal choice for instrumentation applications. It is often used for precision low-noise frequency measurements, data acquisition systems, pulse calibration, and frequency control. In addition, the amplifier can be used for high-precision voltage regulation, closed-loop servoing systems, signal conditioning and transducer interface circuits.

Working Principle

The OPA343NA/3K amplifier is based on a unique matched cascode architecture which optimizes temperature coefficient of the open-loop gain. This amplifier employs low-noise input transistors in its input stage with a symmetrical topology providing outstanding common-mode rejection ratio (CMRR) performance. The amplifier has high output current with R&M noise signature (2-tone -33dB) and good balanced AC stability. The output stage utilizes two current mirrors to generate a balanced output voltage. The amplifier has very high input impedance and can drive capacitive loads. The output can also be set to 0V or within the supply range. It has a maximum output current of 30mA.

Conclusion

The OPA343NA/3K amplifier is an ultra-high performance, low power monolithic Operational Amplifier (Op Amp) which is designed for a single-supply or dual-supplies. It is an ideal choice for precision instrumentation, isolation amplifiers, filters, ADCs and DACs, using both single supply and dual singly-ended power supplies. Its unique matched cascode architecture optimizes temperature coefficient of the open-loop gain and provides excellent common-mode rejection ratio (CMRR) performance, high output current with low distortion, and balanced AC stability. It is frequently used in temperature sensors, electrolyte level detectors, vibration sensors, motion sensing, precision filters and anti-aliasing, and pulse calibration, among many other applications.

The specific data is subject to PDF, and the above content is for reference