AD7652 Analog Devices, AD7652 Datasheet - Page 13

• Manufacturer Part Number: AD7652
• Manufacturer: Analog Devices

Specifications of AD7652

• Resolution (bits): 16bit
• # Chan: 1
• Sample Rate: 500kSPS
• Interface: Par,Ser,SPI
• Analog Input Type: Diff-Uni
• Ain Range: Uni (Vref),Uni 2.5V
• Adc Architecture: SAR
• Pkg Type: CSP,QFP

Figure 12. SNR and S/(N+D) vs. Input Level (Referred to Full Scale)
–100
–110
–120
–50
–60
–70
–80
–90
87
85
84
83
82
89
88
87
86
85
86
–55
–60
1
Figure 11. THD, Harmonics, and SFDR vs. Frequency
Figure 13. SNR, S/(N+D), and ENOB vs. Temperature
–35
–50
–15
–40
10
5
TEMPERATURE (°C)
FREQUENCY (kHz)
INPUT LEVEL (dB)
SFDR
THD
25
SECOND
HARMONIC
–30
S[N+D]
S/[N+D]
SNR
SNR
45
ENOB
100
–20
65
85
THIRD
HARMONIC
–10
105
02966-0-031
02965-0-033
02965-0-032
1000
125
0
140
120
100
80
60
40
20
0
14.50
14.38
14.25
14.13
14.00
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10000
Figure 16. Zero Error, Full Scale with Reference vs. Temperature
0.001
–100
–105
–110
–115
–120
1000
0.01
100
0.1
–1
–2
–3
–4
–5
–6
10
6
5
4
3
2
1
0
1
–55
–55
10
Figure 14. THD and Harmonics vs. Temperature
Figure 15. Operating Current vs. Sample Rate
–35
SECOND
HARMONIC
–35
THIRD
HARMONIC
THD
100
–15
–15
5
5
SAMPLE RATE (SPS)
TEMPERATURE (°C)
TEMPERATURE (°C)
1000
25
25
45
45
10000
PDREF = PDBUF = HIGH
65
65
ZERO ERROR
AVDD
FULL SCALE
100000
85
85
DVDD
105
AD7652
105
OVDD
02965-0-040
02965-0-036
02965-0-034
1000000
125
125