AD9231BCPZ-20 Analog Devices Inc, AD9231BCPZ-20 Datasheet - Page 13

• 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

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.
Figure 12. Two-Tone SFDR/IMD3 vs. Input Amplitude (AIN) with
100
Figure 13. AD9231-80 SNR/SFDR vs. Input Frequency (AIN) with
–100
–120
–0.1
–0.2
–0.3
90
80
70
60
50
40
30
20
10
–20
–40
–60
–80
0.3
0.2
0.1
0
0
0
–70
0
0
Figure 14. AD9231-80 DNL Error with f
SFDR (dBFS)
IMD3 (dBFS)
SFDR (dBc)
IMD3 (dBc)
500
–60
f
IN1
1000
= 28.3 MHz and f
50
INPUT FREQUENCY (MHz)
–50
INPUT AMPLITUDE (dBFS)
2 V p-p Full Scale
1500
SFDR
SNR
OUTPUT CODE
–40
2000
100
IN2
= 30.6 MHz
2500
–30
IN
3000
150
= 9.7 MHz
–20
3500
–10
4000
200
Rev. A | Page 13 of 36
Figure 16. AD9231-80 SNR/SFDR vs. Input Amplitude (AIN) with f
Figure 15. AD9231-80 SNR/SFDR vs. Sample Rate with AIN = 9.7 MHz
–0.2
100
100
0.4
0.2
0.4
90
80
70
60
50
40
30
20
10
90
80
70
60
50
40
30
20
10
0
0
–70
0
10
0
Figure 17. AD9231-80 INL with f
500
–60
20
1000
SFDRFS
–50
30
SNRFS
INPUT AMPLITUDE (dBc)
SFDR
1500
SAMPLE RATE (MHz)
OUTPUT CODE
–40
40
SNRFS
SFDR
2000
SNR
–30
50
2500
IN
= 9.7 MHz
–20
60
3000
–10
3500
70
AD9231
IN
4000
= 9.7 MHz
80
0