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

ADA4861-3YRZ-RL application field and working principle

Linear - Amplifiers - Instrumentation, OP Amps, Buffer Amps

The ADA4861-3YRZ-RL is a high-performance, low-power, wideband, rail-to-rail, single-channel amplifier. It is designed for use in precision instrumentation and data acquisition applications. This amplifier typically includes one stable output stage, a current amplifier, and a voltage amplifier with a wide bandwidth of more than 500 MHz and a slew rate of 5.5 V/µs. The amplifier also provides a low input bias current and fast settling time of 1.1 µs to 0.01 %. With its low distortion, high speed, low memory, excellent temperature, and low power consumption, the ADA4861-3YRZ-RL can provide superior dynamic performance in a variety of applications.

Applications

The ADA4861-3YRZ-RL is suitable for a variety of applications, such as high speed test instruments, oscilloscope front ends, data acquisition systems, high speed data converters, active filters, SAR ADC drivers, high speed/low power amplifiers, ultrasonic processing applications, and high speed logic probes. This amplifier also provides superior performance in systems with high accuracy requirements, such as radar and ultrasound imaging systems.

Working principle

The ADA4861-3YRZ-RL amplifier incorporates a common-mode feedback loop. This loop reduces noise, enhances linearity and stability, and helps maintain a wide common-mode range near the rail voltages. The voltage and current amplifiers are separated by a Schmitt trigger and a current-sense amplifier. The bias current noise is reduced by an output transistor configured as a diode-connected current amplifier. The output stage can provide a rail-to-rail output and a low output offset voltage.

The ADA4861-3YRZ-RL is designed with a de-ramp circuit to reduce the output voltage fluctuation caused by the power supply. It also provides a fast power ramp time and a fast settle time at low supply voltages. An on-chip band gap reference ensures the highest accuracy over the full operating temperature range for even the most demanding precision applications.

Conclusion

The ADA4861-3YRZ-RL is a high-performance, low-power, wideband, rail-to-rail, single-channel amplifier. It is designed for use in precision instrumentation and data acquisition applications. With its low distortion, high-speed, low memory, excellent temperature, and low power consumption, the ADA4861-3YRZ-RL provides superior dynamic performance in a variety of applications.

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