AD7652 Analog Devices, AD7652 Datasheet - Page 12

• 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

AD7652
TYPICAL PERFORMANCE CHARACTERISTICS
140000
120000
100000
80000
60000
40000
20000
–100
–120
–140
–160
–180
–20
–40
–60
–80
–1
–2
–3
–4
4
3
2
1
0
0
0
0
0
7FFB
Figure 6. Histogram of 261,120 Conversions of a
0
Figure 5. Integral Nonlinearity vs. Code
7FFC 7FFD 7FFE 7FFF
0
DC Input at the Code Transition
50
16384
477
Figure 7. FFT Plot
25889
FREQUENCY (kHz)
100
111974
CODE IN HEX
CODE
32768
112112
8000 8001
150
10598
49152
f
f
SNR = 83.4dB
THD = 90.9dB
SFDR = 91.2dB
S/[N+D] = 82.8dB
8002
S
IN
70
= 500kSPS
= 102kHz
200
8003
0
02965-0-023
02965-0-027
02965-0-029
8004
0
65536
250
Rev. 0 | Page 12 of 28
160000
140000
120000
100000
80000
60000
40000
20000
–0.5
–1.0
88
85
82
79
76
2.0
1.5
1.0
0.5
0
0
0
1
7FFC 7FFD 7FFE 7FFF
Figure 10. SNR, S/(N+D), and ENOB vs. Frequency
Figure 9. Histogram of 261,120 Conversions of a
0
Figure 8. Differential Nonlinearity vs. Code
110
16384
DC Input at the Code Center
8659
10
FREQUENCY (kHz)
64967
CODE IN HEX
CODE
32768
144958
8000
41624
8001
100
ENOB
8002
801
49152
S/[N+D]
8003
1
SNR
02966-0-026
02965-0-030
02965-0-028
8004
0
65536
1000
14.5
14.0
13.5
13.0
12.5