ADS62C17_1 Datasheet, PDF (25/67 Pages) Texas Instruments – Dual Channel 11 Bit, 200 MSPS ADC With SNRBoost

ADS62C17
www.ti.com ............................................................................................................................................................. SLAS631A – APRIL 2009 – REVISED JULY 2009
A7 – A0 IN HEX
D7
D6
63
0
0
D5
D4
D3
D2
D1
D0
<OFFSET PEDESTAL – Common/Ch A>
D5-D0
011111
011110
011101
....
000000
....
111111
111110
....
100000
<OFFSET PEDESTAL – Common/Ch A>
When the offset correction is enabled, the final converged value after the offset is corrected will be
the ADC mid-code value. A pedestal can be added to the final converged value by programming
these bits. See "Offset Correction" in application section.
Applies to both channels (with common control) or for channel A only (with independent control).
PEDESTAL = 31 LSB
PEDESTAL = 30 LSB
PEDESTAL = 29 LSB
PEDESTAL = 0 LSB
PEDESTAL = –1 LSB
PEDESTAL = –2 LSB
PEDESTAL = –32LSB
A7 – A0 IN HEX
D7
D6
D5
D4
D3
D2
D1
D0
66
0
<OFFSET CORRECTION ENABLE
0
0
0
0
0
0
– CH B>
Offset correction enable
D6
<OFFSET CORRECTION ENABLE – CH B>
Offset correction enable control for channel B (only with independent control).
0 offset correction disabled
1 offset correction enabled
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