Burr-Brown co-founder Tom Brown looks back at the significance of this amplifier, one of the most important devices in the company's history: "This was a case of serendipity finding us. When we were designing this amplifier, without realizing it, we actually were designing the first commercial sold-state op amp. We originally went to dc coupling to get rid of the large capacitors, and it was our customers who recognized this amplifier as an excellent op amp. From then on we were in the op amp business."
Burr Brown AC Decade Amplifier.
"We originally went to dc coupling to get rid of the large capacitors, and it was our customers who recognized this amplifier as an excellent op amp."
From "Electronic Design," 40 Years Ago, November 18, 1996. https://proaudiodesignforum.com/images/ ... lifier.pdf
Burr Brown's First Op Amp.
"Engineers actually bought the unit, discarded the wooden case, and embedded the PC board in their own circuits."