AD8011AR

Voltage - Input Offset:	2mV
Base Part Number:	AD8011
Supplier Device Package:	8-SOIC
Package / Case:	8-SOIC (0.154", 3.90mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	3 V ~ 12 V, ±1.5 V ~ 6 V
Current - Output / Channel:	30mA
Current - Supply:	1.3mA
Series:	--
Current - Input Bias:	5µA
-3db Bandwidth:	400MHz
Slew Rate:	3500 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Current Feedback
Part Status:	Obsolete
Packaging:	Tube

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AD8011AR Application Field and Working Principle

The AD8011AR is a low-noise, low-drift instrumentation amplifier (IA) developed by Analog Devices. This part is part of the ADI\'s portfolio of high-performance, low-noise, low-drift amplifiers, and provides exceptional performance and noise immunity in a small die size. Ideal for medical and instrumentation applications, the AD8011AR also includes an internal low-impedance fixed output stage that eliminates the need for external resistors when connected to a low-impedance load.The AD8011AR combines a wide dynamic range with a low noise figure, operating in the frequency range of 10 Hz to 10 kHz. In addition to offering low distortion, the AD8011AR also has low-output offset voltage and input bias current, making it ideal for use in precision, low-voltage applications. The part features a low power consumption of 7 mW, making it well-suited for battery-powered applications. In addition, the AD8011AR offers a robust temperature range from -40°C to +85°C, making it well-suited for commercial and industrial applications that are exposed to wide temperature ranges.

Application Field

The AD8011AR is a general-purpose IA best suited for medical instrumentation and portable stereo applications. In medical applications, the device is typically used in sensors, where its low-voltage operation combined with its low noise and low-distortion operation allow the design of small, low-noise sensors. The AD8011AR can also be used in portable stereo applications, where its low noise and low-power operation provide improved audio performance in compact devices.In addition, the AD8011AR is also a good fit for instrumentation amplification in audio, video, and data acquisition applications, providing outstanding performance in low-voltage systems. The device\'s low noise, low-drift, and low-output offset voltage make it suitable for these types of applications, with the added benefit of high accuracy and repeatability.

Working Principle

The basic working principle behind the AD8011AR is the same as the one found in most IA components; a differential input stage, followed by a gain stage, and then an output amplifier. In the AD8011AR, the differential input stage, consisting of two matched high-impedance input terminals and a low-impedance ground, divides the incoming signal into two components. A high-gain differential amplifier then amplifies these two components, producing a high-gain output signal.The gain stage, usually a three-terminal, non-inverting amplifier, amplifies the differential signal further, before routing it through an output amplifier. This stage serves to boost the output signal and minimize distortion and crosstalk. Finally, the output amplifier, either a single-ended or differential output buffer, serves to match the output impedance of the device, providing an efficient connection back to the application circuitry.

Conclusion

The AD8011AR is an excellent choice for low-voltage instrumentation, medical, and portable stereo applications, offering exceptional performance and low-power operation. With its low noise, low distortion and low output-offset voltage, the device is well suited for precision and low-voltage applications that demand high accuracy and repeatability. The consistent performance and robust temperature range make the AD8011AR a well-suited choice for a wide range of applications.

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