AD8250ARMZ-RL

The AD8250ARMZ-RL is a high performance, low-power, two-stage log amplifier with 23 dB of gain and better than 1nV/√Hz input noise. It has a maximum supply voltage of ±2.5V and an operating temperature range of -40°C to +125°C. The AD8250ARMZ-RL is well suited for a variety of applications requiring low-power, high linearity and wide dynamic range. It is ideal for measuring very small signals such as low-level audio and power supplies. The AD8250ARMZ-RL can also be used as a differential to single-ended unbalanced amplifier for instrumentation and control applications.

AD8250ARMZ-RL Application Field

The AD8250ARMZ-RL is ideal for low noise, low power applications such as instrumentation and control. Its wide gain range allows it to be used in a broad array of applications including wireless communications, surveillance, automatic test equipment, biomedical systems, automotive systems, industrial measurement and control and many others. Additionally, its high stability means it can be used in applications where long term stability is required. It is also suitable for a variety of special applications such as sensor conditioning, signal conditioning, anti-aliasing filters, power supply monitoring and other amplifier solutions.

AD8250ARMZ-RL Working Principle

The AD8250ARMZ-RL is a two-stage log amplifier that uses a combination of current-mode and voltage-mode amplification to achieve 23 dB of gain and low noise performance. The first stage is an input differential pair with programmable bias current, designed to provide high linearity and low noise. The second stage is an high performance photodetector. It features an integrated high-impedance current input stage to provide greater linearity with low power consumption. The output of the second stage is a low-impedance buffered signal with lossless signal transfer from input to output. The AD8250ARMZ-RL also features an input dynamic range of 100dB and a maximum offset voltage of 0.2mV.

Conclusion

The AD8250ARMZ-RL is a high performance, low-power two-stage log amplifier with 23 dB of gain and low noise performance. It is ideal for a variety of applications requiring low-power, high linearity and wide dynamic range. The AD8250ARMZ-RL is well suited for applications such as instrumentation and control, wireless communications, surveillance, automatic test equipment, biomedical systems, automotive systems, industrial measurement and control and many others. The first stage of the amplifier is a differential pair with programmable bias current, and the second stage is a high performance photodetector. With features such as a 0.2mV maximum offset voltage, 100dB input dynamic range, and lossless signal transfer from input to output, the AD8250ARMZ-RL is an ideal solution for a variety of demanding applications.