• Skip to primary navigation
  • Skip to main content
  • Skip to primary sidebar
  • Skip to footer

Analog IC Tips

Analog IC Design, Products, Tools Layout

  • Products
    • Amplifiers
    • Clocks & Timing
    • Data Converters
    • EMI/RFI
    • Interface & Isolation
    • MEMS & Sensors
  • Applications
    • Audio
    • Automotive/Transportation
    • Industrial
    • IoT
    • Medical
    • Telecommunications
    • Wireless
  • Learn
    • eBooks / Tech Tips
    • FAQs
    • EE Learning Center
    • EE Training Days
    • Tech Toolboxes
    • Webinars & Digital Events
  • Resources
    • Design Guide Library
    • Digital Issues
    • Engineering Diversity & Inclusion
    • LEAP Awards
    • Podcasts
    • White Papers
    • DesignFast
  • Video
    • EE Videos
    • Teardown Videos
  • EE Forums
    • EDABoard.com
    • Electro-Tech-Online.com
  • Engineering Training Days
  • Advertise
  • Subscribe

Analog Top Talks in December on EDABoard.com forums

January 3, 2019 By Aimee Kalnoskas

Peer-to-peer, engineer-to-engineer questions and answers from the EDABoard.com engineering community around analog ICs and analog design. Click the “Read more” link and follow the entire conversation and maybe add your two cents by logging in to EDAboard.com.

Signal integrity problem in a 100MHZ CLK –  I am wondering about a signal integrity issue with a 100MHz clock generated by an FPGA. This is the set up:
– FPGA generates a 100MHZ square signal with 50% of duty cycle.
– The IO constraint is LVCMOS 3.3V.
– The PCB track has a length of 20cm, and it finished in a Sub-D25 connector. The track has a series termination resistor (Rt). Read more

P-mos not turning off – The p-mos(U1) remains OFF initially when n-mos(Q1) is OFF. Once, a signal from n-mos(Q1) is sent, the p-mos(U1) turns ON, but, even after turning OFF the n-mos(Q1), p-mos(U1) remains ON. Can anyone tell me the reason? Read more

 

Tuning of transconductance in OTA circuit – I want to tune the transconductance of OTA. For transconductance tuning I have to vary the biasing current. But how can I vary the biasing current what circuitry should be used to vary the biasing current for transconductance tuning. Read more

PLL and DLL and their differences?  – I want to become intimate with the PLLs and DLLs. I think the best way is to design and operate them in simulation and on bench. However, I am not sure where to start. It is possible to create them in MATLAB Simunlink (maybe) to learn about how the mechanism works. But I don’t know if they can be constructed using different components on bench or can only work in an integrated circuit. Read more

Workaround for power supply not local with receiver input – I’m stuck with an issue. A 0 – 5V 33Hz pulse train needs to be interfaced with an optocoupler 4N46 before it reaches to a DAQ input. This needs to block common mode EMI which introduces noise at this DAQ‘s input. Read more

Folded cascode amplifier is an op-amp or OTA? – I want to know if a folded cascode amplifier is an OTA or opamp. Read more

Distorted sine output from transformer – I am using an amplifier (LT1210) with +-15V supply and its output is connected to a transformer RM10 core N97 with 9:150 step-up ratio and its output has to be connected to various piezoelectric transducers in the range 40 to 300 kHz and impedances varying from 20 to 2.5kΩ. The problem is I can’t amplify my signal as much as I want to as the sine wave gets distorted and also I have to connect a resistor between amplifier and transformer to make this circuit work. Read more

Slew rate and slew rate limiting –  If the value of the maximum change of the output of the opamp is greater than the slew rates positive and negative (single-ended output) – then I don’t get slew rate limiting OR is it less than the positive and negative slew rates? Read more

5-decade precision current sense application – I’m concepting a current sense application covering about 5 decades from 500μ to 5A where high precision <0.1% AC/DC and high bandwidth ~1Mhz are required (high precision applies to <<1mhz). Ultimately the signal is fed to an ADC (>5MSPS). So first I think it’s obvious this requires multiple shunts and my thought is to space them every decade -> 0.01/0.1/1/10/100.  Read more

Arduino controlled light dimmer – Working on an urgent project of a light dimmer that starts low and the gets brighter in 4 steps — 5% glow then 20% then 50% then 80% or even gradually still good. I found the circuit below at this great website. The light power I need is 3000 W. Can I simply replace the Triac with a bigger power like BTA41-600V? Or do I need to make other changes on the circuit? Read more

analog

You may also like:

  • analog
    Analog Top Talks in November on EDABoard.com forums
  • analog
    Analog Top Talks in October on EDABoard.com forums

  • Analog Top Talks in September on EDABoard.com forums

Filed Under: Amplifiers, Analog ICs, Clocks & Timing, EMI/RFI, Featured, Products Tagged With: edaboard.com, edaboardcom

Primary Sidebar

Featured Contributions

Design a circuit for ultra-low power sensor applications

Active baluns bridge the microwave and digital worlds

Managing design complexity and global collaboration with IP-centric design

PCB design best practices for ECAD/MCAD collaboration

Open RAN networks pass the time

More Featured Contributions

EE TECH TOOLBOX

“ee
Tech Toolbox: 5G Technology
This Tech Toolbox covers the basics of 5G technology plus a story about how engineers designed and built a prototype DSL router mostly from old cellphone parts. Download this first 5G/wired/wireless communications Tech Toolbox to learn more!

EE LEARNING CENTER

EE Learning Center
“analog
EXPAND YOUR KNOWLEDGE AND STAY CONNECTED
Get the latest info on technologies, tools and strategies for EE professionals.

EE ENGINEERING TRAINING DAYS

engineering

RSS Current EDABoard.com discussions

  • Diode recovery test Irrm timing.
  • How to make string LEDs?
  • The Analog Gods Hate Me
  • Battery Deep Discharge – IC Workarounds?
  • Safe Current and Power Density Limits in PCB Copper(in A/m² and W/m³) simulation

RSS Current Electro-Tech-Online.com Discussions

  • Raise your hand if your car had one of these:
  • Tektronix 2235 channel 1 trace unstable
  • How to make string LEDs?
  • Wideband matching an electrically short bowtie antenna; 50 ohm, 434 MHz
  • The Analog Gods Hate Me
“bills

Design Fast

Component Selection Made Simple.

Try it Today
design fast globle

Footer

Analog IC Tips

EE WORLD ONLINE NETWORK

  • 5G Technology World
  • EE World Online
  • Engineers Garage
  • Battery Power Tips
  • Connector Tips
  • DesignFast
  • EDA Board Forums
  • Electro Tech Online Forums
  • EV Engineering
  • Microcontroller Tips
  • Power Electronic Tips
  • Sensor Tips
  • Test and Measurement Tips

ANALOG IC TIPS

  • Subscribe to our newsletter
  • Advertise with us
  • Contact us
  • About us

Copyright © 2025 · WTWH Media LLC and its licensors. All rights reserved.
The material on this site may not be reproduced, distributed, transmitted, cached or otherwise used, except with the prior written permission of WTWH Media.

Privacy Policy