Bug #867

Fix error 410.1, 411.1, 411.2 - TRMS / TRMS Filter

Added by tin almost 6 years ago. Updated over 3 years ago.

Status:ClosedStart date:15/12/2013
Priority:NormalDue date:29/12/2013
Assignee:tin% Done:


Target version:Keithley 2001 #6


VRIN is buffered by U517 and tied to BUFF. The signal at BUFF is routed through R233,
K503, K500, the input protection circuit and Q513 to the input buffer (Q512 and U520).
The buffered signal is tied to AMP IN.

The signal at AMP IN is then routed to the variable gain ampliÞer (VGA) and, being
positive, follows the non-inverting x1 path that consists of R530, Q509, Q507, U519,
R531, U509, Q501, and U516 to pin 15 of the TRMS converter U517.

The output of the U517 is routed to the multiplexer U511 through R219. The output
(OUT) of the multiplexer is routed through buffer U342 to ACV/A. The signal at ACV/
A is routed through U320 (/AC pulled low) and applied to the A/D buffer (U322),
which is conÞgured for x1 gain. Measure the output at A/D IN.


#1 Updated by tin about 5 years ago

  • Target version changed from Keithley 2001 #7 to Keithley 2001 #6

#2 Updated by tin over 3 years ago

  • Status changed from New to Closed

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