<html><head><meta http-equiv="Content-Type" content="text/html; charset=us-ascii"></head><body style="word-wrap: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" class=""><div class=""><br class=""></div><div class=""><br class=""><div><br class=""><blockquote type="cite" class=""><div class="">On Apr 17, 2020, at 2:25 PM, Richie Burnett <<a href="mailto:rburnett@richieburnett.co.uk" class="">rburnett@richieburnett.co.uk</a>> wrote:</div><br class="Apple-interchange-newline"><div class="">How sensitive is the THD nulling to ambient temperature, Don? <br class=""></div></blockquote><div><br class=""></div><div>Good question.</div><div><br class=""></div><div>The effect is similar to a classic exponential converter circuit. I believe you can completely compensate for it with a tempco resistor on the diff amp pair input. (Or two, depending on how you do it.)</div><div><br class=""></div><div>For most applications you might not care. (Do we know of any temperature compensated sine shapers out there?)</div><div><br class=""></div><div><div class=""><div> -- Don<br class="">--<br class="">Donald Tillman, Palo Alto, California<br class=""><a href="http://www.till.com" class="">http://www.till.com</a></div><div class=""><br class=""></div></div></div></div><div class=""><div style="color: rgb(0, 0, 0); font-family: Menlo; font-size: 12px; font-style: normal; font-variant-caps: normal; font-weight: normal; letter-spacing: normal; orphans: auto; text-align: start; text-indent: 0px; text-transform: none; white-space: normal; widows: auto; word-spacing: 0px; -webkit-text-size-adjust: auto; -webkit-text-stroke-width: 0px;"><br class=""></div></div></div></body></html>