AD9201–Typical Characteristic Curves
(AVDD = +3 V, DVDD = +3 V, F
S
= 20 MHz (50% duty cycle), 2 V input span from –0.5 V to
+1.5 V, 2 V internal reference unless otherwise noted)
1.5
65
1.0
60
–0.5dB
0.5
SNR – dB
55
–6dB
INL
0
50
–0.5
45
–20dB
–1.0
40
–1.5
0
128
256
384
512
640
CODE OFFSET
768
896
1024
35
1.00E+05
1.00E+06
1.00E+07
INPUT FREQUENCY – Hz
1.00E+08
Figure 3. Typical INL (1 V Internal Reference)
Figure 6. SNR vs. Input Frequency
1
65
60
0.5
55
SINAD – dB
DNL
–0.5dB
–6dB
0
50
45
–0.5
40
–20dB
–1.0
0
128
256
384
512
640
CODE OFFSET
768
896
1024
35
1.00E+05
1.00E+06
1.00E+07
INPUT FREQUENCY – Hz
1.00E+08
Figure 4. Typical DNL (1 V Internal Reference)
Figure 7. SINAD vs. Input Frequency
1.00
0.80
0.60
0.40
THD – dB
0.20
I
B
– nA
0.00
–0.20
–0.40
–0.60
–0.80
–1.00
–1.0
–0.5
0
0.5
1.0
INPUT VOLTAGE – V
1.5
2.0
–30
–35
–40
–45
–50
–55
–6dB
–60
–65
–0.5dB
–70
–75
–80
1.00E+05
1.00E+06
1.00E+07
INPUT FREQUENCY – Hz
1.00E+08
–20dB
Figure 5. Input Bias Current vs. Input Voltage
Figure 8. THD vs. Input Frequency
–6–
REV. D
AD [ ANALOG DEVICES ]
