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Ina114 instrumentation amplifier tutorial

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WATCH RELATED VIDEO: Instrumentation amplifiers I: Four characteristics, 30/9/2014

Operational amplifiers (op amps)


Rao and Dr. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or scanning without the written permission of Texas Instruments Limits of Liability: While the publisher and the author have used their best efforts in preparing this book, Wiley and the author make no representation or warranties with respect to the accuracy or completeness of the contents of this book, and specifically disclaim any implied warranties of merchantability or fitness for any particular purpose.

There are no warranties which extend beyond the descriptions contained in this paragraph. No warranty may be created or extended by sales representatives or written sales materials. The accuracy and completeness of the information provided herein and the opinions stated herein are not guaranteed or warranted to produce any particular results, and the advice and strategies contained herein may not be suitable for every individual. Neither Wiley India nor the author shall be liable for any loss of profit or any other commercial damages, including but not limited to special, incidental, consequential, or other damages.

Disclaimer: The contents of this book have been checked for accuracy. Since deviations cannot be precluded entirely, Wiley or its author cannot guarantee full agreement. As the book is intended for educational purpose, Wiley or its author shall not be responsible for any errors, omissions or damages arising out of the use of the information contained in the book.

This publication is designed to provide accurate and authoritative information with regard to the subject matter covered. It is sold on the understanding that the Publisher is not engaged in rendering professional services. Trademarks: All brand names and product names used in this book are trademarks, registered trademarks, or trade names of their respective holders. Wiley is not associated with any product or vendor mentioned in this book. We thank everyone for this warm reception.

We are happy to place in your hands the revised version of the Analog System Lab Manual. The Analog System Lab Kit and the associated manual were created to help colleges in India in updating their curriculum for courses related to analog.

Analog electronics occupies a very special and significant place in modern-day systems. In the past decade, India has seen the emergence of a number of system design companies.

Manufacturing of electronic products has also received a significant boost. These companies look for system-level design skills in both analog and digital domains. Unfortunately, analog system design is not emphasized in the conventional way of teaching analog. Our attempt is to help bridge this gap at an early stage in undergraduate coursework. We believe that the ASLK can be adopted by both undergraduate and postgraduate students. We have interacted with hundreds of Indian teachers in the faculty development programs on Analog System Design that were conducted in the last year.

Several colleges have independently conducted such hands-on workshops for teachers as well as students. We are encouraged by the acceptance of the kit as an educational tool that is easy to use. We are grateful to all the comments and feedback we have received from academia.

Several teachers have told us that they have designed new experiments in the areas of communications and controls. Several companies used ASLK in their in-house training programs. We could not have expected a more positive response! Some students even surprised us by using ASLK for new experiments such as motor control and simulation of chaos in oscillators!

We encourage students and teachers to explore such innovative applications of ASLK. TI has a vast portfolio of analog ICs to select from. Based on the feedback we received, we have introduced a few changes in this version of the manual. We are sure you will like the aesthetic improvements to the manual, including the colored illustrations.

A pin diagram of the ASLK is included with the kit to facilitate the connections. We have added several additional exercises in almost all chapters. These additional exercises are marked with a star; we have provided the component values and typical simulation results in these exercises.

The starred exercises can be good starting points when one begins to use ASLK. However, we emphasize the importance of the other exercises which involve design. We suggest that a teacher assigns a mix of starred and the other exercises in the lab work. We are pleased to acknowledge the help from several persons in preparing this manual. Ms Meenakshi Sehrawat of Wiley-India has done a creditable job of editing.

We thank Praveen Settigere of Wiley-India for his continued support. We thank all our colleagues in TI India for their constant support and encouragement. As always, we are eager to know your feedback! Rao C. The goal of the Analog System Lab is to provide students an exposure to the fascinating world of analog and mixed-signal signal processing.

The course can be adapted for an undergraduate or a postgraduate curriculum. As part of the lab course, the student will build analog systems using analog ICs and study their macro models, characteristics and limitations.

Our philosophy in designing this lab course has been to focus on system design rather than circuit design. We feel that many Analog Design classes in the colleges focus on the circuit design aspect, ignoring the issues encountered in system design. In the real world, a system designer uses the analog ICs as building blocks. The focus of the system designer is to optimize system-level cost, power and performance.

IC manufacturers such as Texas Instruments offer a large number of choices of integrated circuits keeping in mind the diverse requirements of system designers. We have tried to emphasize this aspect in designing the experiments in this manual. We believe that there is a need to make a significant change to the way analog design is taught in the engineering colleges today.

The conventional way of starting with device physics and moving on to the design and analysis of analog circuits at the transistor-level needs rethinking. What is proposed is a two-tier approach to teaching analog design — start with analog systems and then move to circuits. There are many system design companies today looking for engineers who can design using analog ICs; they hardly ever design or even use a common emitter amplifier or a Wien-bridge oscillator!

There are 10 experiments in the Analog System Lab, which can be carried out either individually or by groups of two or three students.

In the first phase of experiments, two basic analog building blocks are introduced, namely, Operational Amplifiers and Analog Multipliers. In the second phase, we explain how larger analog systems such as integrators, differentiators, filters, function generators, VCO, PLL, DC-DC converters and regulators can be constructed using the basic building blocks.

The emphasis is on learning by paper design, simulation through SPICE, hardware construction, and analysis of results. With each experiment, we provide brief theoretical background, references to literature mostly online and easy to access , the specification of the design experiment, measurements to be taken, and the documents to be submitted at the end of the experiment. We have received support from a number of individuals when we were working on this manual.

It is our pleasure to acknowledge their contribution. A number of colleagues at Texas Instruments, India have helped us and encouraged us at different stages of the development of the kit and the manual. Our sincere thanks are due to all of them. Sagar has also read various drafts of this manual and provided helpful comments. Ullas Taneja, another student intern, helped in recording the video lectures that provide more information on these experiments. Pulkit Jain, also an intern, helped us by drawing many of the diagrams in this manual.

We thank the faculty members who attended the faculty development programs where initial drafts of this manual and the Analog System Lab Kit were used; their feedback has been useful in improving the kit as well as the manual. We thank Mr. Ashfaq Ibrahim of Cranes Software for their support.

Praveen Settigere of Wiley India for his interest in this project and for all the help he provided in publishing the manual. We hope you and your students will find the Analog Systems Lab Kit and the experiments in this manual rewarding.

We intend to continue to develop more experiments and learning materials in the future; we will share them on the TI India University Program website www. We are eager to know your critique of the kit as well as the manual. Do write to us! Consider a typical signal chain Figure This analog signal is often weak and noisy. Analog filtering may be necessary to remove noise from the signal. Three of the most important building blocks used in this stage are a Operational Amplifiers, b Analog Multipliers and c Analog Comparators.

The choice of the processor depends on how intensive the computation is. A DSP may be necessary when real-time signal processing is needed and the computations are complex. Microprocessors and microcontrollers may suffice in other applications. In modern-day VLSI chips, power dissipation is a major consideration so that we can keep the power density under control. Since the source of power can be a battery, it is important to ensure long battery life through techniques such as clock gating, power gating, etc.

The Power Management block is responsible for these functions. It is evident that analog circuits play a crucial role in the implementation of an electronic system. Our philosophy in designing this lab course has been to focus on system design rather can circuit design.

The focus of the system designer is to optimize system-level cost, power, and performance. As a student, you must be aware of these diverse offerings of semiconductors and select the right IC for the right application. We have designed 10 experiments that can be carried out either individually or by groups of two or three students. These experiments bring out several important issues, such as measurement of gain-bandwidth product, slew-rate and saturation limits of the operational amplifiers.

In a comparator, the rise time, fall time and delay time are important apart from input offset. First, we introduce integrators and differentiators that are essential for implementing filters that can band-limit a signal prior to the sampling process to avoid aliasing errors.

A function generator is also a mixed-mode system that uses an integrator and a regenerative comparator as building blocks.


1 PCS INA114AP DIP-8 INA114 Precision INSTRUMENTATION AMPLIFIER

The Web This site. Op amps are extremely versatile and have become the amplifier of choice for very many applications. The advantages of integration also allow op amps to be included in many application specific integrated circuits ASICs where, combined with other circuit elements, a chip can be designed to carry out a specific function, which for example, can vary from a dedicated tone control or a programmable filter network to a complete audio or communications system. This section introduces some basic variations on the voltage amplifiers described in Module 6. The voltage follower shown in Fig. The gain of a non inverting voltage amplifier would normally be described using the values of R f and R in by the formula:. In the voltage follower circuit however, both R in and R f are replace by simple conductors, and so both these values in the above formula will be extremely small, therefore the gain is 1.

INA Instrumentation Amplifier Module times gain adjustable Single power supply Single-ended/differential input. 89% of recommend.

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The capacitance between the plates is C0 when the tank is empty, and C1 when the tank is filled with fluid. As shown in previous lectures, the height of the fluids is directly proportional to the capacitance between the plates. This capacitance is measured through a bridge circuit shown in Figure 1b. Measure the exact height of your tank. Take two pieces of metal plates that you can submerge into water with a fixed plate separation. You may glue a plastic spacer between the plates so that the distance is fixed. Firstly, calculate theoretically the capacitances at home when the tank is empty and full water in between the plates. In laboratory, you will measure the capacitances of the plates for two cases empty and full cases with given described method below see Section 3.

Analog_system_lab_pro_manual_v103 Analog System Lab Pro Manual V103

ina114 instrumentation amplifier tutorial

Rao and Dr. No part of this book may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying, recording or scanning without the written permission of Texas Instruments Limits of Liability: While the publisher and the author have used their best efforts in preparing this book, Wiley and the author make no representation or warranties with respect to the accuracy or completeness of the contents of this book, and specifically disclaim any implied warranties of merchantability or fitness for any particular purpose. There are no warranties which extend beyond the descriptions contained in this paragraph. No warranty may be created or extended by sales representatives or written sales materials. The accuracy and completeness of the information provided herein and the opinions stated herein are not guaranteed or warranted to produce any particular results, and the advice and strategies contained herein may not be suitable for every individual.

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INA114 Instrumentation Amplifier


Tucson Blvd. Prices and specifications are subject to change. No patent rights or licenses to any of the circuits described herein are implied or granted to any third party. Supply Voltage Input Voltage Range

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We use Cookies to give you best experience on our website. By using our website and services, you expressly agree to the placement of our performance, functionality and advertising cookies. Please see our Privacy Policy for more information. A folding amplifier is a number of parallel differential pairs with interconnected outputs as shown in Figure 1. The folding ratio is the number of differential pairs used in the amplifier , amplifier with a folding ratio of 16 replaces 16 input comparators. Copyright VB The operation of , number of folding amplifiers necessary to implement an 8-bit conversion using a folding ratio of

Electricity and Instrumentation, , Brussels, Belgium [email protected] The first stage is a precision instrumentation amplifier INA that has high.

Instrumentation amplifier application guide

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For my group design project one of the main tasks was to determine the amount Lego blocks stacked together. The group gave me this task, so I decided to make a weight sensor based on strain gauge. Hopefully I'll be able to briefly explain how it is done and what obstacles I had to overcome. Hopefully, it will help someone out there in the world to get over frustation faster, when working with strain gauges. Thanks hackaday for publishing my article! Strain gauges are sensors which are used in variety of physical measurements.

Feature: 1.

The low impedance line drive maintains signal integrity even over distances of several hundred metres, requiring minimal configuration to interface with vibration analysers DJB Instruments. Instrumentation Amplifier Applications - Developer Help Apr 28, Instrumentation amplifiers are by far the most common interface circuits that are used with pressure sensors. An example of an inexpensive instrumentation amplifier based interface circuit uses an LM dual operational amplifier and several resistors that are configured as a classic instrumentation amplifier with one important exception. Information furnished by Analog Devices is believed to be accurate and reliable. However, no responsibility is assumed by Analog Devices for its use, nor for any infringements of patents or other rights of third parties that may result from its use. A basic instrumentation amp is made of 2 op-amps.

The load cell output needed converting into a digital input using an aAnalogue- to- digital converter ADC , which I covered in my previous post. Now, before I even convert the analogue signalit, I want to amplify it. Without amplification, the difference in voltage readouts when applying a range of pressures was tiny.




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