300V.TXT Apr 26, 2015 Testing of precision 300V reference made with 25.00V 0.1% each trimmed at 20uA (LM285+J175 and divider). Tek 7CT1N curve tracer on 6 x 25V shows 150.24V @ 40uA, regulation knee seen slightly below 20uA (by design). <------- V@current, æA ----------> SN 20 25 30 60 100 200 500 P300A 305 305 305 306 306 306 306 Made with 12 ea 25V00 P300B 305 305 306 306 306 306 306 regulators 1M005 25 24 37 64 104 205 508 should read 1M005 26 24 39 63 104 206 509 20, 25, 30, 60, 100, 200, 500 11M28 228 284 273 535 871 1635 2516 should read 11M28 228 285 271 536 873 1642 2550 226, 282, * 33M65 668 794 613 956 1565 2614 2554 673, 841* 33M79 668 794 613 956 1567 2617 2555 676, 845* 40M03 780 915 714 1093 1678 2733 2534 should read 40M03 781 916 714 1094 1680 2738 2536 801, 1001, * *= above voltage rating of resistor Measured 300.9V from 30uA to 470uA; so within 0.3%