Hello together, I have seen in a Fluke application note a block schematic of the Fluke 7000 voltage standard. In the picture there are 2 DACs (10 ppm / 0.4ppm) for precise voltage adjustment. See figure 5 on page 3:
http://fluke.informationstore.net/efulfillment.asp?publication=10777-eng Does anybody know if there are really DACs which are used or if its only the usual BCD coding switches and the resistor string? If there are really DACs: which type (voltage output or multiplying DACs) are actually used? Which integrated circuit? Has anyone a repair handbook with schematic or photos of the pcb? With best regards Andreas _______________________________________________ volt-nuts mailing list -- [email protected] To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/volt-nuts and follow the instructions there.
