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Texas Instruments Engineer Interview Questions and Answers

Updated 15 Jun 2024

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Interview Questionnaire 

1 Question

  • Q1. State machines
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via Company Website and was interviewed in Jan 2024. There were 2 interview rounds.

Round 1 - Technical 

(2 Questions)

  • Q1. Questions about memory segments and compiler optimisations
  • Q2. Question about controller architecture
Round 2 - Technical 

(1 Question)

  • Q1. Question about memory allocation of variables from a code snippet

I applied via Approached by Company and was interviewed in May 2022. There were 5 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Technical 

(2 Questions)

  • Q1. As infineon is Produc based company and Every Person Responsible for complete Chip Testing instead on 1 specific Block. so Interview Asked Basic Tests like continuity, DPS short , Vil/Vih , Voh/Vih , Lekag...
  • Ans. Above all the Topics prepare clearly
  • Answered Anonymously
  • Q2. Basics of Tester Hardwares and why you join in INFIN ? Why want to Change the company ? Why should we we hire ? Tell me about any challenges faced in previous organisation and Work status ? Any protocol...
  • Ans. These are Main topics you should good before going to attend the interview
  • Answered Anonymously
Round 3 - Technical 

(1 Question)

  • Q1. Same as Previous Round but did by Manager in deep level on Basics and work
Round 4 - Behavioral 

(1 Question)

  • Q1. General Discussion about Works did in previous organisation and Basics
Round 5 - HR 

(1 Question)

  • Q1. General Discussion and Salary Negotiation

Interview Preparation Tips

Topics to prepare for Infineon Technologies Senior Engineer interview:
  • Java, Basics of Engineering
Interview preparation tips for other job seekers - Instead of preparing before interview Continuously Learn where ever you work that make you get confidence

Learn more skills that make your Resume more weight

Must and Should Revise and Review all the topics attached in Resume

If any One Call for scheduling Interview, ask for time min 2 Java and Max 1 week to Revise and Get ready with Full knowledge and confidence for interview.
Interview experience
3
Average
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Selected Selected

I applied via LinkedIn and was interviewed in May 2022. There were 3 interview rounds.

Round 1 - Resume Shortlist 
Pro Tip by AmbitionBox:
Keep your resume crisp and to the point. A recruiter looks at your resume for an average of 6 seconds, make sure to leave the best impression.
View all tips
Round 2 - Aptitude Test 

Easy questions were there in round 10 . . . . . . .

Round 3 - Technical 

(2 Questions)

  • Q1. Easy questions. . . . . . . . .
  • Q2. Everything from fundamentals.....

Interview Preparation Tips

Interview preparation tips for other job seekers - Keep clam and listen to your brain. . . . . . .. . . .

Interview Questionnaire 

4 Questions

  • Q1. Implement the following code using gates(MUX and multiplier) If(A): F = D*E Else: F = G*H
  • Ans. 

    Implement code using MUX and multiplier gates for conditional assignment

    • Use a 2:1 MUX to select between D*E and G*H based on A

    • Use a multiplier gate to calculate D*E and G*H

    • Connect the output of the MUX to the input of the multiplier gate

    • Ensure proper sizing of gates to meet design requirements

  • Answered by AI
  • Q2. Draw State diagram to find a pattern 1011.Important to ask: If overlap is allowed.If there are 1000 states, we represent using 10 bits. If ‘P’ power is consumed when the system moves from State 0 to State ...
  • Q3. Timing analysis of Sequential and combinational logic: Definition of Setup time. How does it affect the system. Find the minimum clock frequency given Tcq, delay of all the gates, Tsu, Thold
  • Ans. 

    Setup time is the minimum time required for the input signal to be stable before the clock edge arrives.

    • Setup time is a critical parameter in timing analysis of sequential and combinational logic.

    • It affects the system by ensuring that the input signal is stable before the clock edge arrives, preventing errors in the output.

    • The minimum clock frequency can be calculated using the formula: Fmin = 1 / (Tcq + Tsu + Thold), ...

  • Answered by AI
  • Q4. Due to some other type of fabrication, if clock frequency happened to be more than whatit is supposed to be(the one calculated above), how do you handle that situation?

Interview Preparation Tips

Round: Resume Shortlist
Experience: Shortlisted 8 students from resumes for interview.

Parameters for shortlisting (at each stage of process):Varied ResumeAny work done in FGPACG - I had CGPA of 8.66Internship - Was an Intern at QualcommProjects - Digital IC Design-used Standard Cell Design,Wireless-OFDMsynchronization and channel estimation,Automatic speech recognition)

Round: Technical Interview
Experience: Only 1 round of interview was taken.No HR round and only Technical Questions were asked.

Basics in our courses(state diagrams etc.) were tested.Concepts were explained and was asked questions. So, skill ofgrasping and applying were also testedSpeed didn’t matter. How aproblem was approached,thought were testedNo knowledge regarding minors/electives tested.

For Core:No courses/electives looked at(as nothing related to FPGA is taught)Nothing related to BTP/DDP
Tips: Good skills of maths might help.

In the interview, in 2nd question which was mentioned, whether repetition isallowed or not was asked by the candidate.This really mattered as that was theonly thing different he has done from the person who did an intern in FPGA andit might helped in getting selected finally :)

Skills: Grasping Power, Approaching a Problem, Thought Process, Math Skills, C++, C, Python, Matlab, Networks, Digital Signal Processing, Data Structures , Digital Systems, Algorithms
College Name: IIT MADRAS

Engineer Interview Questions & Answers

Qualcomm user image Siddharth Srivastava

posted on 19 Mar 2015

Interview Questionnaire 

16 Questions

  • Q1. Explain the difference between Moore and Mealy state models
  • Ans. 

    Moore state model outputs depend only on the current state, while Mealy state model outputs depend on both current state and inputs.

    • Moore model: output is a function of current state only

    • Mealy model: output is a function of current state and inputs

    • Moore model has a separate output function, while Mealy model combines output and state transition functions

    • Example: vending machine can be modeled using Mealy model as outpu...

  • Answered by AI
  • Q2. Draw the state diagram and the clocked D-flipflop circuit for a 0110 sequence detector
  • Ans. 

    State diagram and clocked D-flipflop circuit for a 0110 sequence detector.

    • The state diagram will have four states: S0, S1, S2, and S3.

    • The circuit will have four D-flipflops, one for each state.

    • The output of the circuit will be high when the sequence 0110 is detected.

    • The clock signal will be used to synchronize the flipflops.

    • The state diagram and circuit can be designed using software like Quartus or Xilinx.

  • Answered by AI
  • Q3. What is parity and how is it used? Draw the circuit diagram for a parity checker
  • Ans. 

    Parity is a method of error detection in digital communication. It involves adding an extra bit to a data stream to ensure even or odd number of 1s.

    • Parity is used to detect errors in data transmission.

    • It involves adding a parity bit to a data stream.

    • The parity bit is set to 1 or 0 depending on whether the number of 1s in the data stream is even or odd.

    • If an error occurs during transmission, the parity bit will be incor...

  • Answered by AI
  • Q4. Design a memory organization given the size and block units
  • Ans. 

    Designing a memory organization based on size and block units.

    • Determine the size of the memory and the size of each block unit

    • Choose a suitable memory organization scheme such as direct mapping, associative mapping, or set-associative mapping

    • Implement the chosen scheme and test for efficiency and accuracy

  • Answered by AI
  • Q5. Draw the circuit diagram for a random number generator
  • Ans. 

    A random number generator circuit diagram can be created using a noise source and an amplifier.

    • Use a noise source such as a Zener diode or a reverse-biased transistor

    • Amplify the noise signal using an amplifier circuit

    • Use a comparator to convert the analog signal to a digital signal

    • Add a clock circuit to control the output frequency

  • Answered by AI
  • Q6. What is a Schmitt trigger/inverter?
  • Ans. 

    A Schmitt trigger/inverter is a circuit that converts a noisy input signal into a clean digital output signal.

    • It has two threshold voltage levels: a high threshold and a low threshold

    • The output of the circuit changes state only when the input voltage crosses one of the threshold levels

    • It is commonly used in digital circuits to clean up noisy signals and to provide hysteresis

    • Examples include debouncing switches, signal

  • Answered by AI
  • Q7. Arrange the inputs to AND gates so that power usage is optimized/delay is optimized
  • Ans. 

    To optimize power usage/delay in AND gates, arrange inputs based on their capacitance and resistance.

    • Arrange inputs with lower capacitance and resistance closer to the gate

    • Inputs with higher capacitance and resistance should be placed farther away

    • Consider the layout of the circuit and the routing of the wires

    • Simulation tools can be used to determine optimal input arrangement

  • Answered by AI
  • Q8. Draw the CMOS circuit for a given logic equation and do the corresponding W/L sizing
  • Ans. 

    Answering a question on drawing CMOS circuit and W/L sizing for a given logic equation.

    • Understand the logic equation and its truth table

    • Use CMOS inverter and NAND gates to implement the logic

    • Size the transistors based on their role in the circuit

    • Check the circuit for correct functionality

    • Examples: AND gate, OR gate, XOR gate

  • Answered by AI
  • Q9. Draw a circuit for a set of logic equations using PLA
  • Ans. 

    A circuit for a set of logic equations using PLA

    • PLA stands for Programmable Logic Array

    • PLA is a type of digital circuit used to implement combinational logic circuits

    • The circuit consists of an AND array and an OR array

    • Inputs are fed into the AND array and the outputs are fed into the OR array

    • Example: A PLA circuit for a 2-input XOR gate would have 2 inputs, 2 AND gates, and 1 OR gate

  • Answered by AI
  • Q10. Draw and talk about a basic SRAM cell
  • Ans. 

    An SRAM cell is a type of memory cell that stores a single bit of data using two cross-coupled inverters.

    • Consists of two inverters connected in a feedback loop

    • Has two stable states, representing 0 and 1

    • Uses two access transistors to read and write data

    • Commonly used in cache memory and microprocessors

  • Answered by AI
  • Q11. Given the delays for gates and wires, draw output waveforms for the given logic circuit
  • Ans. 

    Draw output waveforms for a logic circuit given delays for gates and wires.

    • Identify the logic gates and their delays

    • Determine the propagation delay for each wire

    • Use the delays to calculate the output waveform

    • Draw the waveform using a timing diagram

  • Answered by AI
  • Q12. What is Min-Cut placement algorithm? Given some block sizes, use the algorithm to place them on a given chip area
  • Ans. 

    Min-Cut placement algorithm is used to place blocks on a given chip area.

    • Min-Cut algorithm partitions the chip into two parts and minimizes the cut between them

    • It is a graph-based algorithm that uses a flow network to represent the chip and its blocks

    • The algorithm iteratively partitions the network until all blocks are placed

    • Example: Placing logic gates on a microprocessor chip

  • Answered by AI
  • Q13. Given a clock waveform of frequency f, design a circuit to get an output of frequency f/3
  • Ans. 

    Design a circuit to get an output of frequency f/3 from a clock waveform of frequency f.

    • Use a counter to divide the frequency by 3

    • Implement a flip-flop to toggle the output

    • Use logic gates to control the counter and flip-flop

  • Answered by AI
  • Q14. Explain a little about your M.Tech. project
  • Ans. 

    My M.Tech. project was focused on developing a machine learning algorithm for predicting stock prices.

    • Used historical stock data to train the algorithm

    • Implemented various machine learning techniques such as regression and neural networks

    • Achieved an accuracy of 80% in predicting stock prices

    • Explored the impact of news articles on stock prices

  • Answered by AI
  • Q15. What do you know about Qualcomm?
  • Ans. 

    Qualcomm is a multinational semiconductor and telecommunications equipment company.

    • Founded in 1985 in San Diego, California

    • Specializes in designing and manufacturing wireless telecommunications products and services

    • Known for their Snapdragon processors used in smartphones and other mobile devices

    • Also involved in developing 5G technology and Internet of Things (IoT) devices

    • Has partnerships with various companies includi

  • Answered by AI
  • Q16. Have you ever worked in groups? What kind of work was it?
  • Ans. 

    Yes, I have worked in groups on various projects.

    • I have worked in groups during my college projects.

    • I have also worked in groups in my previous job on a software development project.

    • In both cases, we had to collaborate and divide tasks among team members.

    • We had regular meetings to discuss progress and address any issues.

    • I found that working in a group allowed us to leverage each other's strengths and produce better res

  • Answered by AI

Interview Preparation Tips

Round: Test
Experience: The Quant and Programming sections were long but fairly easy; I pretty much sailed through them. However, the core EC section was really lengthy and not so easy, and also had negative marking. I was able to complete the first 2 sections completely, and around 11/20 questions in the core section.
The Quant section touched basic topics like probability, algebra and simple geometry. Programming questions were quite syntax-based, rather than algorithm-based. In the core section, the focus was on device physics and digital electronics, including combinational/sequential circuits and microprocessors.
Tips: 1. Practice Quantitative sections. A LOT. Speed is of the essence in these sections, because almost everyone is on the same level as you are where mathematics is concerned.
2. Know the basic syntax of C++, that is the most common language you're tested on in the Programming section. Also know simple data structures and complexity calculations.
3. The core section is the most important one, so make sure your knowledge is sound and practice solving digital circuits as fast as you can.
4. The EC section is generally quite lengthy, so quickly flip through the questions once and then figure out what questions you can do for sure, finish those and then start on the remaining ones. DO NOT STAY ON ONE QUESTION FOR TOO LONG, because you won't even be able to haphazardly guess on the other questions because of the negative marking.
Duration: 60 minutes
Total Questions: 50

Round: Technical Interview
Experience: I had only one round of technical interview. The interviewer was a person who'd worked at Qualcomm for around 5 years, as a Senior Engineer. The questions were not too tough, but challenging enough that you had to be quick at circuit evaluations. I wasn't able to solve all the questions completely, but talking aloud really helped, the interviewer himself would pass on hints or correct me sometimes if I went too far off on a tangent.
All in all, the interview lasted for about 45 minutes and was tiring but really fun if you like EC. For the first time, I realized that I actually knew electronics after studying it for 4 years! ;)
Tips: 1. Many people must have said this to you, but I'll say it again: Don't be too nervous. The questions are asked in such a way that you will definitely not be able to do all of them, so don't freak if you miss something here and there, they know it too!
2. Make sure you have the basics of logic gates, sequential design and digital VLSI circuits down pat when you're preparing for the interview. These are the main areas they are looking for in the VLSI Electronics interviews. Apart from these, a knowledge of Computer Architecture and basic VLSI CAD wouldnn't hurt!
3. I can't emphasize this enough: Talk out when thinking. It is very important for the interviewers to know what kind of technical logic you use when working out problems, and most often they start talking with you, which leads to an insightful discussion rather than a Q&A session.
4. Make sure your interest in the field also comes across; as far as I saw, they're looking for people who actually like EC and will be able to work hours together without getting bored of it (Well, not too much :P)

Round: HR Interview
Experience: The HR interview wasn't really an interview; it was more of a 15-minute discussion with an HR person. He was basically looking to see whather I would be able to fit into a team-oriented work environment and add something to it, that's all. Apart from that, there was mostly a discussion on the package breakdown, and the kind of work and teams we could be involved with in Qualcomm.
Tips: 1. Know something about Qualcomm, so that you're able to answer the first question they'll mostly ask.
2. This round is set to get to know you, so clear all your doubts and ask as many questions as you want.
3. Once again, try to express your interest in working in the field of electronics; if your passion shows, this round is pretty much cleared!

General Tips: 1. Be sure you're interested in EC before applying to Qualcomm for the VLSI profile.
2. For the test, speed is of the essence; practice solving different question sets in as less time as possible.
3. For the interview(s), don't be nervous, talk aloud, and have a sound technical base to build upon.
Skills: Digital Circuits, VLSI Technology, Low-Power Electronics, EC Device Physics, VLSI Circuit Design, Basic Programming
College Name: Indian Institute of Technology Kharagpur
Motivation: I've always been interested in Electronics, ever since I studied the 8085 Microprocessor in the 12th Grade. Even when I joined IITKGP, I changed my Department to Electronics after my first year, because that's what I wanted to study!
Circuit design is one of the most interesting and challenging fields in today's electronics field, and I would love to see what happens, and be a part of it. Especially since right now we're on the verge of a big change - we're close to moving away from silicon-based designs; what happens next?

Skills evaluated in this interview

I was interviewed before Jun 2016.

Interview Preparation Tips

Round: Test
Experience: Basic questions, testing normal knowledge
Total Questions: 50

Round: Technical Interview
Experience: 20 minutes, 5 questions ? Scheduling, real-time OS, and file system based questions ? Asked some in depth questions about file-handling in Linux ? C++ - IBM site tutorials, C-FAQ for C coding tutorials ? One puzzle, regarding number of rectangles on a chessboard, and some more typical questions asked in technical interviews

Round: HR Interview
Experience: Family and educational background ? Tell me about yourself ? Went a little in-depth into Linux. ? Main concern: will you join or not
Tips: Over all preparation in C, DSP course, OS and course in networking helps. ? Also, for HR interview, know about the company, PPT and website.

Interview Questionnaire 

1 Question

  • Q1. I was interviewed for 4G/5G modem system. Topics that generally comes in these types of interview: Communication systems basics in detail, modulation techniques in detail, wireless channel in detail like m...
Interview experience
5
Excellent
Difficulty level
Moderate
Process Duration
Less than 2 weeks
Result
Not Selected

I applied via LinkedIn and was interviewed before Sep 2022. There was 1 interview round.

Round 1 - Technical 

(2 Questions)

  • Q1. General question on WLAN, bluetooth
  • Q2. WLAN Connection procedure
  • Ans. 

    WLAN connection procedure involves scanning for available networks, selecting a network, entering the password, and connecting to the network.

    • Scan for available networks

    • Select a network to connect to

    • Enter the password for the selected network

    • Establish connection to the network

  • Answered by AI

Skills evaluated in this interview

Texas Instruments Interview FAQs

How many rounds are there in Texas Instruments Engineer interview?
Texas Instruments interview process usually has 1 rounds. The most common rounds in the Texas Instruments interview process are One-on-one Round.
How to prepare for Texas Instruments Engineer interview?
Go through your CV in detail and study all the technologies mentioned in your CV. Prepare at least two technologies or languages in depth if you are appearing for a technical interview at Texas Instruments. The most common topics and skills that interviewers at Texas Instruments expect are Analog, Electrical Engineering, Semiconductor, Analytical and Electronics.

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