AD9231BCPZ-20 Analog Devices Inc, AD9231BCPZ-20 Datasheet - Page 12

• Manufacturer Part Number: AD9231BCPZ-20
• Description: 12 Bit, 20 MSPS Dual Low Power ADC
• Manufacturer: Analog Devices Inc

Specifications of AD9231BCPZ-20

• Number Of Bits: 12
• Sampling Rate (per Second): 20M
• Data Interface: Serial, SPI™
• Number Of Converters: 2
• Power Dissipation (max): 73.3mW
• Voltage Supply Source: Analog and Digital
• Operating Temperature: -40°C ~ 85°C
• Mounting Type: Surface Mount
• Package / Case: 64-LFCSP
• Lead Free Status / RoHS Status: Lead free / RoHS Compliant

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. A | 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