32k Point FFT fS = 1.6Msps,
參數(shù)資料
型號: DC1813A-E
廠商: Linear Technology
文件頁數(shù): 21/24頁
文件大?。?/td> 0K
描述: BOARD SAR ADC LTC2369-18
軟件下載: QuikEval II System
設(shè)計資源: DC1813A Schematic
DC1813A Design File
標(biāo)準(zhǔn)包裝: 1
系列: QuikEval-II™
ADC 的數(shù)量: 1
位數(shù): 18
采樣率(每秒): 1.6M
數(shù)據(jù)接口: 串行,SPI?
輸入范圍: 0 ~ VREF
在以下條件下的電源(標(biāo)準(zhǔn)): 18mW @ 1.6MSPS
工作溫度: 0°C ~ 70°C
已用 IC / 零件: LTC2369-18
已供物品:
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LTC2369-18
6
236918fa
TYPICAL PERFORMANCE CHARACTERISTICS
32k Point FFT fS = 1.6Msps,
fIN = 2kHz
SNR, SINAD vs Input Frequency
THD, Harmonics
vs Input Frequency
SNR, SINAD vs Input level,
fIN = 2kHz
SNR, SINAD vs Reference
Voltage, fIN = 2kHz
THD, Harmonics vs Reference
Voltage, fIN = 2kHz
Integral Nonlinearity
vs Output Code
Differential Nonlinearity
vs Output Code
DC Histogram
TA = 25°C, VDD = 2.5V, OVDD = 2.5V, REF = 5V,
fSMPL = 1.6Msps, unless otherwise noted.
OUTPUT CODE
0
65536
131072
196608
262144
–2.0
INL
ERROR
(LSB)
0.0
0.5
1.0
1.5
–0.5
–1.0
–1.5
2.0
236918 G01
OUTPUT CODE
–0.5
DNL
ERROR
(LSB)
0.4
0.3
0.2
0.1
0.0
–0.4
–0.3
–0.2
–0.1
0.5
236918 G02
0
65536
131072
196608
262144
CODE
COUNTS
25000
30000
35000
236918 G03
15000
0
131067 131069 131071 131073 131075 131077
40000
= 1.3
20000
10000
5000
FREQUENCY (kHz)
0
100 200 300 400
800
700
600
500
–180
AMPLITUDE
(dBFS)
–60
–40
–20
–80
–100
–120
–140
–160
0
236918 G04
SNR = 96.5dB
THD = –127dB
SINAD = 96.5dB
SFDR = 134dB
FREQUENCY (kHz)
0
70
SNR,
SINAD
(dBFS)
75
80
85
90
50
100
150
200
236918 G05
95
100
SNR
25
75
125
175
SINAD
FREQUENCY (kHz)
0
–160
HARMONICS,
THD
(dBFS)
–150
–130
–120
–110
–60
THD
2ND
3RD
–90
50
100
125
236918 G06
–140
–80
–70
–100
25
75
150 175
200
INPUT LEVEL (dB)
–40
95.0
SNR,
SINAD
(dBFS)
95.5
96.0
96.5
97.0
97.5
SNR
SINAD
98.0
–30
–20
–10
0
236918 G07
REFERENCE VOLTAGE (V)
2.5
95
96
97
SNR
SINAD
4.5
236918 G08
94
93
3
3.5
4
5
92
91
90
SNR,
SINAD
(dBFS)
REFERENCE VOLTAGE (V)
2.5
HARMONICS,
THD
(dBFS)
–120
–110
THD
3RD
–100
4.5
236918 G09
–130
–140
–125
–115
–105
–135
–145
–150
3
3.5
4
5
2ND
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