DRV401AIDWP

Series:	--
Packaging:	Tube
Part Status:	Active
Type:	Sensor Conditioner
Input Type:	Logic
Output Type:	Logic
Interface:	--
Current - Supply:	6.8mA
Operating Temperature:	-40°C ~ 125°C
Mounting Type:	Surface Mount
Package / Case:	20-SOIC (0.295", 7.50mm Width) Exposed Pad
Supplier Device Package:	20-SO PowerPad
Base Part Number:	DRV401

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Introduction

The DRV401AIDWP is an integrated low-power differential amplifier for strain gauge, pressure sensitive resistors and similar transducers. It provides single supply operation from 1.6 V to 5.5 V (6V with the LOW_VIN option). This device also includes gain and zero offset adjustment and temperature-compensated measurements on a single monolithic chip. The DRV401AIDWP can be used for diverse applications such as automotive, industrial, medical and consumer applications.

Application Field

DRV401AIDWP can be used in a variety of fields and applications. Automotive applications where the device can be used include Active Suspension, Active Motor Mounts, Clutch Pedal Position, Steering Torque, and Accelerator Pedal Position. Industrial applications include Flow Meters and Pressure Sensors. In medical applications, the device can be used for Strain Gauges, Contact and Non-Contact Tension and Pressure Sensors. In consumer applications, the device can be used in a variety of applications such as Force Measurement, Accelerometer Sensors and Pressure Sensors.

Features and Benefits

The DRV401AIDWP offers a wide range of features and benefits, which makes it suitable for a variety of applications. Its low-power operation makes it ideal for battery-powered and portable applications. It also has an adjustable gain and offset, allowing for customizability to suit specific transducer characteristics. Its temperature-compensated measurements allow for accurate readings in varying environmental conditions. In addition, the device has a low-noise output signal and low input bias current.

Working Principle

The DRV401AIDWP operates on the principle of strain gauge measurements. It utilizes a two-resistor full Wheatstone bridge to measure the strain gauges. The two resistor strain gauge is made of two resistors in series and connected at the mid-point of both resistors. The two resistors then act as two independent strain gauges. The DRV401AIDWP amplifies the difference between the two strain gauges so that it can then be further processed/measured.The DRV401AIDWP provides a differential output signal proportional to the resistance difference between the two strain gauges. This signal can then be further amplified, digitized and/or processed according to the requirements of the application. It can also be used to measure the amount of strain in the strain gauges, thus allowing the determination of various characteristics such as the force being applied.

Conclusion

The DRV401AIDWP is a low-power differential amplifier for strain gauge, pressure sensitive resistors and similar transducers. It is suitable for a variety of applications, including automotive, industrial, medical and consumer applications. It has various features, including low-power operation, adjustable gain and offset and temperature-compensated measurements that make it suitable for a variety of measurement applications. The device utilizes a two-resistor full Wheatstone bridge to measure the strain and provides a differential output signal proportional to the resistance difference between the two strain gauges.

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