AD8532ARZ-REEL

Voltage - Input Offset:	25mV
Base Part Number:	AD8532
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 (±):	2.7 V ~ 6 V, ±1.35 V ~ 3 V
Current - Output / Channel:	250mA
Current - Supply:	750µA
Series:	--
Current - Input Bias:	5pA
Gain Bandwidth Product:	3MHz
Slew Rate:	5 V/µs
Output Type:	Rail-to-Rail
Number of Circuits:	2
Amplifier Type:	General Purpose
Part Status:	Active
Packaging:	Tape & Reel (TR)

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Introduction

The AD8532ARZ-REEL is a specialized instrumentation amplifier (IA) designed to provide high accuracy and small size with minimal noise and power consumption. The wide range of gains, high common-mode rejection (CMR) ratio, and low offset make it well-suited for a variety of instrumentation applications, including thermocoupling, pressure and displacement measurement, data acquisition, and analog-to-digital conversion. This paper will discuss the application field and working principle of the AD8532ARZ-REEL.

Applications

The AD8532ARZ-REEL is designed with a wide range of applications and configurations in mind. By leveraging its high common-mode rejection and low offset, it can be used for high accuracy thermocoupling, pressure and displacement measurements. Those measurements can also be used in data acquisition and analog-to-digital conversion systems. Thermocoupling measurements, for example, usually require a high-gain gain stage, making the AD8532ARZ-REEL an ideal solution. The small size and low power consumption make it well suited for portable medical devices and point-of-care systems. It can also be used in automotive, industrial, and instrumentation systems that require accurate, low-noise measurements of temperature, current, voltage, or other variables.

Working Principle

The AD8532ARZ-REEL is a three-channel gain stage instrumentation amplifier. It uses a differential amplifier topology to provide a high common-mode rejection ratio to reduce noise and offset. The differential inputs isolate the input signals from each other, and the outputs are amplified to provide a gain that is set by an external resistor. The amplifier features two adjustable internal resistors that allow for a wide range of gains. One resistor sets the common-mode gain, while the other sets the differential gain. By setting the two resistors, the amplifier can be precisely configured for the desired gain with low noise and low power consumption.

Conclusion

The AD8532ARZ-REEL is an instrumentation amplifier designed for high accuracy and small size measurements. Its wide range of gains, low offset, and high common-mode rejection make it suitable for a variety of instrumentation and data acquisition applications. Leveraging its adjustable internal resistors, the amplifier can be tuned for the desired gain with minimal noise and power consumption.

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