AD8271ARMZ

Voltage - Input Offset:	300µV
Base Part Number:	AD8271
Supplier Device Package:	10-MSOP
Package / Case:	10-TFSOP, 10-MSOP (0.118", 3.00mm Width)
Mounting Type:	Surface Mount
Operating Temperature:	-40°C ~ 85°C
Voltage - Supply, Single/Dual (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Current - Output / Channel:	100mA
Current - Supply:	2.3mA
Series:	--
Current - Input Bias:	500nA
Gain Bandwidth Product:	15MHz
Slew Rate:	30 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	1
Amplifier Type:	Programmable Gain
Part Status:	Active
Packaging:	Tube

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AD8271ARMZ Application Field and Working PrincipleThe AD8271ARMZ is an instrumentation amplifier that expands the input signal range and accuracy while achieving high performance characteristics. It belongs to the category of linear amplifiers, specifically instrumentation, operational (OP) amplifiers, and buffer amplifiers. AD8271ARMZ is suitable for use in a wide range of applications, from medical equipment to automotive systems, where precision signal amplification and gain accuracy is necessary. In this article, we will discuss the application fields of the AD8271ARMZ and the principles behind its operation.Application FieldsThe AD8271ARMZ was designed for precision amplification and gain accuracy. It provides an input range which is 16 times greater than a conventional non-inverting amplifier and offers excellent offset, gain, and linearity error performance. It is suitable for use in medical equipment where precise signal amplification is necessary. Medical equipment requires accurate and precise analog signals. Amplifying the signal in the AD8271ARMZ ensures high-resolution accuracy for transmitted signals.The AD8271ARMZ is also commonly used in automotive systems to measure pressure, temperature, acceleration, and more. The accuracy of the signal is paramount, and the AD8271ARMZ allows a high-resolution of the signal across the operating voltage range without any compromises. This ensures accurate enough measurements in engine controls and traction control systems.Other applications which include the AD8271ARMZ are power supply regulation and monitor circuits. This instrumentation amplifier is suitable for producing the precise voltage values needed for regulation efficiency. It is also used in satellites and communications systems, offering accurate signal amplification and stability.Working PrincipleThe AD8271ARMZ has an amplifier stage composed of PNP and NPN transistors connected to the input and output terminals. This configuration is called an instrumentation amplifier (INA). An INA amplifies the differential voltage (VIN) between two input terminals and then delivers the amplified differential voltage output to the output terminal (VOUT). The gain of the amplifier can be adjusted by setting the value of the feedback resistors.The AD8271ARMZ has excellent offset and gain accuracy, due to its precise calibration of the input stages. The integrated gain and offset adjustment circuit keeps the gain difference between two channels to within ±0.05% and the offsets to within ±2 µV. This allows for both precise amplification of the expected input signals, and precise offset and linearity error cancellation.The AD8271ARMZ has a wide input common-mode range of ±15V, enabling a wide range of possible inputs. Its high common-mode rejection ratio (CMRR) of 107 dB is capable of canceling out unwanted noise in the input signal and allowing only the desired signal to pass through and be amplified. With a stable and precise response, the AD8271ARMZ ensures accuracy of the output signal.In summary, the AD8271ARMZ is an instrumentation amplifier belonging to the category of linear amplifiers, specifically instrumentation, operational (OP) amplifiers, and buffer amplifiers. It provides excellent offset, gain, and linearity error performance, with a wide input common-mode range and high CMRR of 107 dB. This enables a wide range of applications: medical equipment, automotive systems, power supply regulation and monitor circuits and more. With a precise calibration of its input stages and accurate gain and offset adjustment circuitry, it provides stable and precise amplification of input signals, avoiding any unwanted noise.

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