Datasheet

ADS6445, ADS6444
ADS6443, ADS6442
SLAS531B –MAY 2007–REVISED DECEMBER 2009 www.ti.com
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
MIN NOM MAX UNIT
SUPPLIES
AVDD Analog supply voltage 3.0 3.3 3.6 V
LVDD LVDS Buffer supply voltage 3.0 3.3 3.6 V
ANALOG INPUTS
Differential input voltage range 2 V
pp
Input common-mode voltage 1.5 ±0.1 V
Voltage applied on VCM in external reference mode 1.45 1.50 1.55 V
CLOCK INPUT
ADS6445 5 125
ADS6444 5 105
Input clock sample rate, F
srated
MSPS
ADS6443 5 80
ADS6442 5 65
Sine wave, ac-coupled 0.4 1.5
LVPECL, ac-coupled ± 0.8
Input clock amplitude differential (V
CLKP
– V
CLKM
) V
pp
LVDS, ac-coupled ± 0.35
LVCMOS, ac-coupled 3.3
Input Clock duty cycle 35% 50% 65%
DIGITAL OUTPUTS
Without internal termination 5
Maximum external load capacitance from each output pin
C
LOAD
pF
to DGND
With internal termination 10
R
LOAD
Differential load resistance (external) between the LVDS output pairs 100 Ω
T
A
Operating free-air temperature –40 85 °C
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Product Folder Link(s): ADS6445, ADS6444 ADS6443, ADS6442