ADS6445_14 Datasheet, PDF (9/82 Pages) Texas Instruments – QUAD CHANNEL, 14-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS OUTPUTS

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ADS6445, ADS6444
ADS6443, ADS6442
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.
PARAMETER
TEST CONDITIONS
ASD6445/ADS6444
ADS6443/ADS6442
MIN TYP MAX
UNIT
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|
Output offset voltage V_OS
Output capacitance
Common-mode voltage of OUTP and OUTM
Output capacitance inside the device, from either output to
ground
250 350 450 mV
1200
mV
2
pF
(1) I_O refers to the LVDS buffer current setting, R_LOAD is the external differential load resistance between the LVDS output pair.
Copyright © 2007–2009, Texas Instruments Incorporated
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