EVAL-ADUC831QSZ Datasheet, PDF (13/76 Pages) Analog Devices – MicroConverter®, 12-Bit ADCs and DACs with Embedded 62 kBytes Flash MCU

20
AV_DD / DV_DD = 5V
0
f_S = 152kHz
f_IN = 9.910kHz
–20
SNR = 71.3dB
THD = –88.0dB
–40
ENOB = 11.6
–60
–80
–100
–120
–140
–160
0
10
20
30
40
50
60
70
FREQUENCY – kHz
TPC 11. Dynamic Performance at V_DD = 5 V
20
AV_DD / DV_DD = 3V
0
f_S = 149.79kHz
f_IN = 9.910kHz
–20
SNR = 71.0dB
THD = –83.0dB
–40
ENOB = 11.5
–60
–80
–100
–120
–140
–160
0
10
20
30
40
50
60
70
FREQUENCY – kHz
TPC 12. Dynamic Performance at V_DD = 3 V
ADuC831
80
–70
AV _DD/DV_DD = 3V
f_S = 152kHz
75
–75
SNR
70
–80
THD
65
–85
60
–90
55
–95
50
0.5
1.0
1.5
2.0
2.5
3.0
EXTERNAL REFERENCE – V
–100
TPC 14. Typical Dynamic Performance vs. V_REF, V_DD = 3 V
80
78
AV_DD / DV_DD = 5V
76
74
72
70
68
66
64
62
60
65.476 92.262
119.05 145.83 172.62
FREQUENCY – kHz
199.41
226.19
TPC 15. Typical Dynamic Performance vs.
Sampling Frequency
80
–70
AV_DD / DV_DD = 5V
75
f_S = 152kHz
–75
SNR
70
–80
65
–85
THD
60
–90
55
–95
50
0.5
1.0
1.5
2.0
2.5
5.0
EXTERNAL REFERENCE – V
–100
TPC 13. Typical Dynamic Performance vs. V_REF, V_DD = 5 V
0.80
0.75
0.70
AV_DD / DV_DD = 3V
SLOPE = ؊2mV/؇C
0.65
0.60
0.55
0.50
0.45
0.40
–40
–20
0
25
50
85
TEMPERATURE – ؇C
TPC 16. Typical Temperature Sensor Output vs.
Temperature
REV. 0
–13–