ADS5481 datasheet(30/42 Pages) TI

30 / 42 page

Clock Inputs

CLKP

CLKM

ADS548x

SquareWaveor

SineWave

0.01 F

S0168-08

ADS5481

ADS5482

ADS5483

SLAS565A – JUNE 2008 – REVISED NOVEMBER 2008................................................................................................................................................... www.ti.com

The ADS548x equivalent clock input circuit is shown in Figure 67. The clock inputs can be driven with either a

differential clock signal or a single-ended clock input, but differential is highly recommended. The characterization

of the ADS548x is typically performed with a 3-VPP differential clock, but the ADC performs well with a differential

clock amplitude down to ~1 VPP, as shown in Figure 69 and Figure 70 . The clock amplitude becomes more of a

factor in performance as the analog input frequency increases. When single-ended clocking is a necessity, it is

best to connect CLKM to ground with a 0.01-

µF capacitor, while CLKP is ac-coupled with a 0.01-µF capacitor to

the clock source, as shown in Figure 68.

Figure 67. Clock Input Circuit

Figure 68. Single-Ended Clock

Submit Documentation Feedback

Product Folder Link(s): ADS5481 ADS5482 ADS5483

ADS5481 Datasheet(PDF) 30 Page - Texas Instruments

ADS5481 Datasheet(HTML) 30 Page - Texas Instruments

Html Pages

1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42

Datasheet Download

Link URL