AD7665 Analog Devices, AD7665 Datasheet - Page 10

• Manufacturer Part Number: AD7665
• Manufacturer: Analog Devices

Specifications of AD7665

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 570kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Bip,Diff-Uni
• Ain Range: Bip (Vref),Bip (Vref) x 2,Bip (Vref) x 4,Uni (Vref),Uni (Vref) x 2,Uni (Vref) x 4
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

AD7665
TPC 8. SNR, S/(N+D), and ENOB vs. Frequency
–100
–120
–140
–160
–180
–20
–40
–60
–80
100
–0
92
90
88
86
95
90
85
80
75
70
–80
0
1
–70
TPC 9. SNR vs. Input Level
SINAD
SNR
57
–60
TPC 7. FFT Plot
10
–50
FREQUENCY – kHz
FREQUENCY – kHz
INPUT LEVEL – dB
114
–40
171
–30
100
4096 POINT FFT
FS = 571kHz
f
SNR = 90.1 dB
SINAD = 89.7dB
THD = –100.1dB
SFDR = 102.3dB
IN
= 45kHz, –0.5dB
–20
ENOB
228
–10
1000
285
0
16.0
15.5
15.0
14.5
14.0
13.5
13.0
–10–
TPC 11. THD, Harmonics, and SFDR vs. Frequency
–100
–105
–110
–115
–100
–110
–120
–130
–140
–150
–60
–65
–70
–75
–80
–85
–90
–95
–60
–70
–80
–90
96
93
90
87
84
TPC 12. THD, Harmonics vs. Input Level
–55
–60
TPC 10. SNR, THD vs. Temperature
1
SECOND HARMONIC
SECOND HARMONIC
THIRD HARMONIC
–35
THIRD HARMONIC
SFDR
–50
–15
–40
10
5
TEMPERATURE – C
FREQUENCY – kHz
INPUT LEVEL – dB
25
–30
THD
45
THD
–20
100
65
SNR
85
THD
–10
105
REV.
1000
125
0
110
105
100
95
90
85
80
75
70
65
60
–98
–100
–102
–104
C