AD7690 Analog Devices, AD7690 Datasheet - Page 9
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AD7690
Manufacturer Part Number
AD7690
Description
Manufacturer
Analog Devices
Datasheet
1.AD7690.pdf
(24 pages)
Specifications of AD7690
Resolution (bits)
18bit
# Chan
1
Sample Rate
400kSPS
Interface
Ser,SPI
Analog Input Type
Diff-Uni
Ain Range
(2Vref) p-p
Adc Architecture
SAR
Pkg Type
CSP,SOP
Available stocks
Company
Part Number
Manufacturer
Quantity
Price
Company:
Part Number:
AD7690BRMZ
Manufacturer:
ADI
Quantity:
1 000
Part Number:
AD7690BRMZ
Manufacturer:
ADI/亚德诺
Quantity:
20 000
Company:
Part Number:
AD7690BRMZ-RL7
Manufacturer:
VICOR
Quantity:
104
Company:
Part Number:
AD7690BRMZ-RL7
Manufacturer:
ADI
Quantity:
1 000
TYPICAL PERFORMANCE CHARACTERISTICS
–0.5
–1.0
–1.5
–100
–120
–140
–160
–180
1.5
1.0
0.5
80k
70k
60k
50k
40k
30k
20k
10k
–20
–40
–60
–80
0
0
0
0
0
Figure 8. Histogram of a DC Input at the Code Center
55
0
20
57
Figure 7. Integral Nonlinearity vs. Code
0
Figure 9. Fast Fourier Transform Plot
40
65536
39
58
2614
60
59
FREQUENCY (kHz)
31666
80
5A
CODE IN HEX
131072
CODE
67198
100
5B
27546
POSITIVE INL = +0.42LSB
NEGATIVE INL = –0.6LSB
5C
120
1991
5D
140
196608
f
f
SNR = 101.4dB
THD = –122dB
SFDR = 130dB
SINAD = 101.3dB
VDD = REF = 5V
S
IN
5E
18
= 400kSPS
= 1.99kHz
160
5F
0
180
262144
60
0
200
Rev. B | Page 9 of 24
105
104
103
102
101
100
99
98
97
96
95
–0.5
–1.0
1.0
0.5
–10
60k
50k
40k
30k
20k
10k
0
Figure 11. Histogram of a DC Input at the Code Transition
0
0
31
0
Figure 10. Differential Nonlinearity vs. Code
32
0
–8
Figure 12. SNR, THD vs. Input Level
65536
33
2
533
34
INPUT LEVEL (dB)
12623
–6
35
CODE IN HEX
SNR
THD
52500
131072
CODE
36
53936
37
–4
11212
38
196608
263
39
VDD = REF = 5V
–2
3A
3
3B
0
AD7690
262144
3C
0
0
–110
–112
–114
–116
–118
–120
–122
–124
–126
–128
–130