AD8421BRZ-R7

Voltage - Input Offset:	25µV
Base Part Number:	AD8421
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 (±):	5 V ~ 36 V, ±2.5 V ~ 18 V
Current - Output / Channel:	65mA
Current - Supply:	2mA
Series:	--
Current - Input Bias:	100pA
-3db Bandwidth:	10MHz
Slew Rate:	35 V/µs
Output Type:	--
Number of Circuits:	1
Amplifier Type:	Instrumentation
Part Status:	Active
Packaging:	Tape & Reel (TR)

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The AD8421BRZ-R7 is a low power instrumentation amplifier that has design simplicity and outstanding accuracy. This product is ideal for applications that require high gain accuracy, excellent dc precision and a low power dissipation.

The main applications for the AD8421BRZ-R7 include: Medical instruments, industrial monitoring systems, data acquisition systems, process controls, instrumentation amplifiers, and more. The AD8421BRZ-R7 is a ideal solution for high performance, low-power applications where accuracy and precision are paramount.

Instrumentation amplifiers are commonly used when the desired output is a high fidelity representation of an input signal. Instrumentation amplifiers measure input signals with a low level of noise, so that the signal is not disturbed or distorted. This allows for higher accuracy and precision in the amplification of the signal.

The AD8421BRZ-R7 features an instrumentation amplifier design with a truly differential architecture and low offset voltage of 12.5µV. It has a low frequency of 10kHz and an open loop gain of 500V/V. This instrumentation amplifier also features a single external resistor to set the gain, which makes it very easy to use and configure.

The working principle of the AD8421BRZ-R7 involves the use of two matched transistors. These two transistors are connected in such a way as to create an input stage. This input stage is powered by the +VCC voltage supply which provides bias to the transistors. This bias allows the transistors to function as amplifiers, with the amplified output going to the output pin. The gain of the amplifier is set by the external resistor, Rgain, which is connected to the positive and negative terminals of the input stage.

The AD8421BRZ-R7 also features an active gain control and an adjustable output stage. The active gain control adjusts the overall gain of the amplifier, while the adjustable output stage can be used to change the amount of voltage gain of the amplifier.

The AD8421BRZ-R7 is a versatile instrumentation amplifier that is perfect for a wide range of applications. It is easy to use, offers excellent accuracy and precision, and has a low power dissipation. It is well suited for use in medical instruments, industrial monitoring systems, data acquisition systems, process controls, and other applications that require high gain accuracy and excellent dc precision.

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