Triad Alliance Podcast #3, July 28, 2005

Today’s Show
This is episode #3 of the Triad Alliance Podcast and on today’s show our “guest” will be Programmable Gain Instrumentation Amplifier (PGIA). Stay tuned to learn more about Reusable Analog IP on Triad MSSA platforms.

(Download Triad Alliance Podcast Episode #3)

New version of the website is online. Be sure and visit Triad’s website to become a registered user. Once you are registered you get:

  • Ability to post to the online forum
  • Receive the weekly Triad Alliance Newsletter (you can opt-out at anytime)
  • Download the MSSA Design Kit (MDK)
  • Request that your company be listed in the Triad Alliance Member’s directory
  • And, of course, be eligible to win the ultimate Triad Alliance Gear (we like to call it Ligerwear)

Also, new info is being added to the website daily and weekly so visit often to stay up todate on the latest developments at Triad Semi.

The Triad Audio Decryption Contest is still going on…

(see early podcast for wave file to download)

Hint: Get rid of a sine wave at a particular frequency

I used Goldwave to create and encode the message. You can use Goldwave or a similar program to analyze and decode the message. The first 5 people to decode the message win a T-Shirt from the Triad Alliance. Once you have the answer, send an email to with the answer and if you are one of the first 5 to respond with the right answer I will send you a T-Shirt.

Triad Alliance News
Welcome our newest Triad Alliance Member:

  • Carilion Biomedical Institute

    Carilion Biomedical Institute is dedicated to improving the health and lives of people worldwide by partnering with scientists, researchers, and the medical and business communities to create major advances in healthcare. CBI fosters biomedical research at the University of Virginia and Virginia Polytechnic Institute and State University (popularly known as Virginia Tech) and…(read more)…

FREE Reusable Analog IP

Triad MSSA analog circuits are designed out of our fine to medium-grained analog building blocks such as:

  • OTA (Operational Transconductance Amplifiers)
  • Output Stages
  • OpAmps (General Purpose, Low Power, Wideband)
  • Resistors
  • Capacitors
  • Switches
  • Individual Transistors

The functions are not designed at the GDSII (polygon) level — we’ve already done that for you — You design your circuit by interconnecting these elements at the schematic level and then spice and mixed-signal simulating the design.

Once your design pass simulation you now have a reusable piece of Analog IP.

On today’s show we discuss an analog macro or analog IP block the:

Programmable Gain Instrumentation Amplfier or (PGIA)

The PGIA has 8 digitally controlled gain settings ranging from -6 dB to +30 dB. The gain is selected by a 3-bit digital word. This is a good first IP block to release and review because not only is it a usefull functional block but also because it isn’t overly complex. If you look thru the PGIA Analog IP Documentation on the Triad website, I think that you will get a pretty good idea of what it takes to design a function using the Triad approach. The online documentation gives you an overview of the macro and shows how much of the MSSA’s available resources are utilized to create the PGIA (not much). Other pages in the PGIA area show the schematics and Verilog code used to implement the PGIA. In a couple of days we will post the Mentor Design Architect schematics and spice models for the PGIA. I will let you know when that information is available.