Datasheet

ADS6445, ADS6444
ADS6443, ADS6442
www.ti.com SLAS531B –MAY 2007–REVISED DECEMBER 2009
DIGITAL CHARACTERISTICS
The DC specifications refer to the condition where the digital outputs are not switching, but are permanently at a valid logic
level 0 or 1 AVDD = LVDD = 3.3V, I
O
= 3.5mA, R
LOAD
= 100Ω
(1)
.
All LVDS specifications are characterized, but not tested at production.
ASD6445/ADS6444
ADS6443/ADS6442
PARAMETER TEST CONDITIONS UNIT
MIN TYP MAX
DIGITAL INPUTS
High-level input voltage 2.4 V
Low-level input voltage 0.8 V
High-level input current 10 μA
Low-level input current 10 μA
Input capacitance 4 pF
DIGITAL OUTPUTS
High-level output voltage 1375 mV
Low-level output voltage 1025 mV
Output differential voltage |V
OD
| 250 350 450 mV
Output offset voltage V
OS
Common-mode voltage of OUTP and OUTM 1200 mV
Output capacitance inside the device, from either output to 2 pF
Output capacitance
ground
(1) I
O
refers to the LVDS buffer current setting, R
LOAD
is the external differential load resistance between the LVDS output pair.
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Product Folder Link(s): ADS6445, ADS6444 ADS6443, ADS6442