參數(shù)資料
型號(hào): EVAL-AD7686CBZ
廠商: Analog Devices Inc
文件頁(yè)數(shù): 28/28頁(yè)
文件大?。?/td> 0K
描述: BOARD EVALUATION FOR AD7686
標(biāo)準(zhǔn)包裝: 1
系列: PulSAR®
ADC 的數(shù)量: 1
位數(shù): 16
采樣率(每秒): 500k
數(shù)據(jù)接口: 串行
輸入范圍: ±VREF
在以下條件下的電源(標(biāo)準(zhǔn)): 15mW @ 500kSPS,5 V
工作溫度: -40°C ~ 85°C
已用 IC / 零件: AD7686
已供物品:
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AD7686
Rev. B | Page 9 of 28
TYPICAL PERFORMANCE CHARACTERISTICS
CODE
IN
L
(
L
S
B
)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
16384
32768
49152
65535
02
96
9-
00
7
POSITIVE INL = +0.52LSB
NEGATIVE INL = –0.38LSB
Figure 7. Integral Nonlinearity vs. Code
0
296
9-
008
CO
UNT
S
250000
200000
150000
100000
50000
0
CODE IN HEX
802B 802C 802D 802E
8026
8027
8028
8029 802A
00
26
00
202719
30770
27583
22
VDD = REF = 5V
Figure 8. Histogram of a DC Input at the Code Center
0
29
69-
009
FREQUENCY (kHz)
120
0
20
40
60
80 100
200 220 240
140 160 180
AM
P
L
IT
UDE
(
d
B
O
F
UL
L
S
CAL
E
)
0
–20
–40
–60
–80
–100
–120
–160
–140
–180
8192 POINT FFT
VDD = REF = 5V
fS = 500kSPS
fIN = 19.99kHz
SNR = 92.8dB
THD = –108.7dB
SECOND HARMONIC = –110.1dB
THIRD HARMONIC = –119.2dB
Figure 9. FFT Plot
CODE
DN
L
(
L
S
B
)
2.0
1.5
1.0
0.5
0
–0.5
–1.0
–1.5
–2.0
0
16384
32768
49152
65535
02
96
9-
01
0
POSITIVE DNL = +0.35LSB
NEGATIVE DNL = –0.36LSB
Figure 10. Differential Nonlinearity vs. Code
0
296
9-
0
1
CO
UNT
S
160000
140000
120000
100000
60000
80000
20000
40000
0
CODE IN HEX
802B
8024
8026
8025
8027
8028
8029
802A
0
1703
0
124164
133575
1678
VDD = REF = 5V
Figure 11. Histogram of a DC Input at the Code Transition
02
96
9-
0
12
INPUT LEVEL (dB)
0
–10
–8–6–4–2
T
HD
(
d
B)
–120
–105
–108
–111
–114
–117
S
NR
(
d
B)
95
94
93
92
91
90
SNR
THD
Figure 12. SNR and THD vs. Input Level
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