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AD9481
Rev. 0 | Page 4 of 28
DIGITAL SPECIFICATIONS
AVDD = 3.3 V, DRVDD = 3.3 V; TMIN = 40°C, TMAX = +85°C, AIN = 1 dBFS, full scale = 1.0 V, internal reference, differential analog and
clock inputs, unless otherwise noted.
Table 2.
AD9481-250
Parameter
Temp
Test Level
Min
Typ
Max
Unit
CLOCK AND DS INPUTS (CLK+, CLK, DS+, DS)
Differential Input
Full
IV
200
mV p-p
Full
VI
1.38
1.5
1.68
V
Input Resistance
Full
VI
4.2
5.5
6.0
k
Input Capacitance
25°C
V
4
pF
LOGIC INPUTS (PDWN, S1)
Logic 1 Voltage
Full
IV
2.0
V
Logic 0 Voltage
Full
IV
0.8
V
Logic 1 Input Current
Full
VI
±160
A
Logic 0 input Current
Full
VI
10
A
Input Resistance
25°C
V
30
k
Input Capacitance
25°C
V
4
pF
DIGITAL OUTPUTS
Full
VI
DRVDD 0.05
mV
Logic 0 Voltage
Full
VI
0.05
V
Output Coding
Full
IV
Twos complement or binary
1 The common mode for CLOCK inputs can be externally set, such that 0.9 V < CLK ± < 2.6 V.
2 Capacitive loading only.