AD9020–SPECIFICATIONS
ABSOLUTE MAXIMUM RATINGS1
3/4REF, 1/2REF, 1/4REF Current . . . . . . . . . . . . . . . . . . . 10 mA
Digital Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 20 mA
Operating Temperature
AD9020JE/KE/JZ/KZ . . . . . . . . . . . . . . . . . . . . 0°C to 70°C
Storage Temperature . . . . . . . . . . . . . . . . . . . –65°C to +150°C
Maximum Junction Temperature2 . . . . . . . . . . . . . . . . . 150°C
Lead Soldering Temp (10 sec) . . . . . . . . . . . . . . . . . . . . 300°C
+VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . +6 V
–VS . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . –6 V
ANALOG IN . . . . . . . . . . . . . . . . . . . . . . . . . . . –2 V to +2 V
+VREF, –VREF, 3/4REF, 1/2REF, 1/4REF . . . . . . . . . . –2 V to +2 V
+VREF to –VREF . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 4.0 V
DIGITAL INPUTS . . . . . . . . . . . . . . . . . . . . . . .–0.5 V to +VS
ELECTRICAL CHARACTERISTICS
(؎VS = ؎5 V; ؎VSENSE = ؎1.75 V; ENCODE = 40 MSPS unless otherwise noted)
Test
AD9020JE/JZ
AD9020KE/KZ
Parameter (Conditions)
Temp
Level
Min
Typ
Max
Min
Typ
Max
Unit
RESOLUTION
10
10
Bits
DC ACCURACY3
Differential Nonlinearity
25°C
Full
25°C
Full
I
VI
I
VI
VI
1.0
1.25
1.5
2.75
3.0
0.75
1.0
1.0
LSB
LSB
LSB
LSB
1.25
2.25
2.50
Integral Nonlinearity
1.25
No Missing Codes
Full
Guaranteed
ANALOG INPUT
Input Bias Current4
25°C
Full
25°C
25°C
25°C
I
VI
I
V
V
0.4
1.0
2.0
0.4
1.0
2.0
mA
mA
kΩ
Input Resistance
Input Capacitance4
Analog Bandwidth
2.0
7.0
45
175
2.0
7.0
45
175
pF
MHz
REFERENCE INPUT
Reference Ladder Resistance
25°C
Full
Full
I
VI
V
22
14
37
0.1
45
45
50
56
66
22
14
37
0.1
45
45
50
56
66
Ω
Ω
Ladder Tempco
Reference Ladder Offset
Top of Ladder
Ω/°C
25°C
Full
25°C
Full
I
VI
I
VI
V
90
90
90
90
90
90
90
90
mV
mV
mV
mV
Bottom of Ladder
Offset Drift Coefficient
Full
µV/°C
SWITCHING PERFORMANCE
Conversion Rate
Aperture Delay (tA)
25°C
25°C
25°C
25°C
25°C
I
60
6
60
6
MSPS
ns
ps, rms
ns
V
V
I
1
5
10
3
1
5
10
3
Aperture Uncertainty (Jitter)
5
Output Delay (tOD
)
13
5
13
5
Output Time Skew5
I
ns
DYNAMIC PERFORMANCE
Transient Response
Overvoltage Recovery Time
Effective Number of Bits (ENOB)
fIN = 2.3 MHz
25°C
25°C
V
V
10
10
10
10
ns
ns
25°C
25°C
25°C
I
IV
IV
7.9
7.6
7.2
9.0
8.4
8.0
7.9
7.6
7.2
9.0
8.4
8.0
Bits
Bits
Bits
fIN = 10.3 MHz
f
IN = 15.3 MHz
Signal-to-Noise Ratio6
fIN = 2.3 MHz
25°C
25°C
25°C
I
I
I
49.5
47.5
45.5
56
53
50
49.5
47.5
45.5
56
53
50
dB
dB
dB
f
f
IN = 10.3 MHz
IN = 15.3 MHz
Signal-to-Noise Ratio6
(Without Harmonics)
f
IN = 2.3 MHz
25°C
25°C
25°C
I
I
I
49.5
49.5
48
56
54
52
49.5
49.5
48
56
54
52
dB
dB
dB
fIN = 10.3 MHz
fIN = 15.3 MHz
–2–
REV. C
ADI [ ADI ]
