AD9231-20EBZ AD [Analog Devices], AD9231-20EBZ Datasheet - Page 12

• Manufacturer Part Number: AD9231-20EBZ
• Description: 12-Bit, 20 MSPS/40 MSPS/65 MSPS/80 MSPS, 1.8 V Dual Analog-to-Digital Converter
• Manufacturer: AD [Analog Devices]

AD9231
TYPICAL PERFORMANCE CHARACTERISTICS
AD9231-80
AVDD = 1.8 V; DRVDD = 1.8 V, maximum sample rate, 2 V p-p differential input, 1.0 V internal reference; AIN = −1.0 dBFS, DCS
disabled, unless otherwise noted.
–105
–120
–135
–105
–120
–135
–105
–120
–135
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
0
0
Figure 7. AD9231-80 Single-Tone FFT with f
0
Figure 6. AD9231-80 Single-Tone FFT with f
Figure 8. AD9231-80 Single-Tone FFT with f
0
0
0
80MSPS
30.6MHz @ –1dBFS
SNR = 70.1dB (71.1dBFS)
SFDR = 94.4dBc
4
4
4
5
8
8
8
+
12
12
12
3
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
6
16
16
16
80MSPS
9.7MHz @ –1dBFS
SNR = 70.2dB (71.2dBFS)
SFDR = 93.6dBc
2
2
20
20
20
+
80MSPS
69MHz @ –1dBFS
SNR = 69.9dB (70.9dBFS)
SFDR = 94.3dBc
6
2
24
24
24
6
+
5
28
28
28
3
IN
IN
IN
= 30.6 MHz
= 9.7 MHz
= 69 MHz
5
32
32
32
3
36
36
36
4
4
4
40
40
40
Rev. 0 | Page 12 of 36
Figure 11. AD9231-80 Two-Tone FFT with f
–105
–120
–135
–105
–120
–135
–105
–120
–135
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
–15
–30
–45
–60
–75
–90
Figure 10. AD9231-80 Single-Tone FFT with f
Figure 9. AD9231-80 Single-Tone FFT with f
0
0
0
0
0
0
F2 – F1 2F2 – F1
4
80MSPS
100.3MHz @ –1dBFS
SNR = 69.5dB (70.5dBFS)
SFDR = 87.7dBc
80MSPS
210.3MHz @ –1dBFS
SNR = 67.9dB (68.9dBFS)
SFDR = 83.2dBc
80MSPS
28.3 @ –7dBFS
30.6 @ –7dBFS
SFDR = 90dBc
4
4
4
8
8
8
3
2F1 + F2
12
12
12
5
FREQUENCY (MHz)
FREQUENCY (MHz)
FREQUENCY (MHz)
16
16
16
F1 + F2
6
3
20
20
20
2
IN1
5
2F2 – F1
24
24
24
= 28.3 MHz and f
+
+
28
28
28
IN
IN
= 100.3 MHz
= 210.3 MHz
32
32
32
2F1 – F2
36
36
36
IN2
= 30.6 MHz
6
4
2
40
40
40