ADS6445 Datasheet, PDF (4/75 Pages) STMicroelectronics – QUAD CHANNEL, 14-BIT, 125/105/80/65 MSPS ADC WITH SERIAL LVDS OUTPUTS

ADS6445, ADS6444
ADS6443, ADS6442
SLAS531 – MAY 2007
RECOMMENDED OPERATING CONDITIONS
over operating free-air temperature range (unless otherwise noted)
SUPPLIES
AVDD Analog supply voltage
LVDD LVDS Buffer supply voltage
ANALOG INPUTS
Differential input voltage range
Input common-mode voltage
Voltage applied on VCM in external reference mode
CLOCK INPUT
ADS6445
Input clock sample rate, F_srated
ADS6444
ADS6443
ADS6442
Sine wave, ac-coupled
Input clock amplitude differential (V_CLKP– V_CLKM)
LVPECL, ac-coupled
LVDS, ac-coupled
LVCMOS, ac-coupled
Input Clock duty cycle
DIGITAL OUTPUTS
C_LOAD
Maximum external load capacitance from each output pin ^{Without internal termination}
to DGND
With internal termination
R_LOAD
T_A
Differential load resistance (external) between the LVDS output pairs
Operating free-air temperature
www.ti.com
MIN
NOM MAX UNIT
3.0
3.3 3.6 V
3.0
3.3 3.6 V
2
V_pp
1.5 ±0.1
V
1.45
1.50 1.55 V
5
5
5
5
0.4
35%
1.5
± 0.8
± 0.35
3.3
50%
125
105
80
65
65%
MSPS
V_pp
5
pF
10
100
Ω
–40
85 °C
4
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