THS8083 Datasheet, PDF (49/61 Pages) Texas Instruments – Triple 8-Bit, 80 MSPS, 3.3-V Video and Graphics Digitizer With Digital PLL

NOTE 11: Analog input bandwidth – The analog input bandwidth is defined as the maximum frequency of the input sine that can be applied to the
device for which a 3 dB attenuation is observed in the reconstructed signal.
5.4.5.3 Clamp
PARAMETER
TEST CONDITIONS
ADC_INTREF
MIN TYP MAX UNIT
Clamp code adjustment range
See Note 12
100
138 LSB
Clamp acquisition time at input dc level change
Input level changed by ^{Within 10% of final value}
100 mV
Within 1 LSB of final value
1 1.8 ms
2.1 3.6 ms
Clamp acquisition time, clamp code change
Clamp changed from
min to max
Within 1 LSB
400 700 ns
Clamp droop error
Droop between 2 clamps at 15 kHz line rate
0.35 1.2 LSB
NOTE 12: Clamp code adjustment range – A dc-input signal is applied to the device. The clamp code is changed from the minimum to maximum
setting. The corresponding change in the ADC output code is defined as the clamp code adjustment range.
5.4.6 Coarse PGA
PARAMETER
Full-scale adjustment range
Accuracy
Full-scale gain change settling time
TEST CONDITIONS
MIN TYP MAX UNIT
0.4
1.2 V
±6
LSB
285 ns
5.4.7 Fine PGA
PARAMETER
Full-scale adjustment range
TEST CONDITIONS
MIN TYP MAX UNIT
–4
8 LSB
5–5