AD7653 Analog Devices, AD7653 Datasheet - Page 12

• Manufacturer Part Number: AD7653
• Manufacturer: Analog Devices

Specifications of AD7653

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

AD7653
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
100
16384
679
Figure 7. FFT Plot
15906
FREQUENCY (kHz)
200
CODE IN HEX
112516
CODE
32768
114641
8000 8001
300
17001
49152
f
f
SNR = 86.0dB
THD = 90.3dB
SFDR = 91.5dB
S/[N+D] = 84.8dB
8002
377
S
IN
= 1000kSPS
= 101kHz
400
8003
0
02966-0-023
02966-0-027
02966-0-029
8004
0
65536
500
Rev. A | Page 12 of 28
160000
140000
120000
100000
80000
60000
40000
20000
–0.5
–1.0
90
87
84
81
78
75
72
2.0
1.5
1.0
0.5
0
0
1
0
Figure 10. SNR, S/(N+D), and ENOB vs. Frequency
Figure 9. Histogram of 261,120 Conversions of a
7FFC 7FFD 7FFE 7FFF
0
Figure 8. Differential Nonlinearity vs. Code
53
DC Input at the Code Center
16384
2856
10
FREQUENCY (kHz)
54482
CODE IN HEX
CODE
146148
32768
8000
54473
8001
100
8002
3099
49152
ENOB
8003
9
S/[N+D]
SNR
02966-0-030
02966-0-026
02966-0-028
8004
0
65536
1000
15.0
14.5
14.0
13.5
13.0
12.5
12.0