參數(shù)資料
型號: AD7468BRT-R2
廠商: Analog Devices Inc
文件頁數(shù): 7/29頁
文件大?。?/td> 0K
描述: IC ADC 8BIT 1.6V LP SOT-23-6
標準包裝: 1
位數(shù): 8
采樣率(每秒): 200k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉(zhuǎn)換器數(shù)目: 1
功率耗散(最大): 900µW
電壓電源: 單電源
工作溫度: -40°C ~ 85°C
安裝類型: 表面貼裝
封裝/外殼: SOT-23-6
供應商設備封裝: SOT-23-6
包裝: 剪切帶 (CT)
輸入數(shù)目和類型: 1 個單端,單極
其它名稱: AD7468BRT-R2CT
AD7466/AD7467/AD7468
Rev. C | Page 14 of 28
5
–5
S
NR
(dB)
–45
–35
–25
–15
–55
–65
–75
–85
–95
0
5
10
15
20
25
30
35
40
45
50
FREQUENCY (kHz)
8192 POINT FFT
VDD = 1.8V
fSAMPLE = 100kSPS
fIN = 30kHz
SINAD = 49.83dB
THD = –79.37dB
SFDR = –70.46dB
02643-009
Figure 8. AD7468 Dynamic Performance at 100 kSPS
–65
S
INAD
(dB)
–72
–71
–70
–69
–68
–67
–66
–73
10
100
INPUT FREQUENCY (kHz)
VDD = 3.6V
VDD = 3V
VDD = 2.7V
TEMP = 25
°C
VDD = 1.8V VDD = 1.6V VDD = 2.2V
02643-010
Figure 9. AD7466 SINAD vs. Analog Input Frequency
at 100 kSPS for Various Supply Voltages
–68.0
S
NR
(dB)
–72.5
–72.0
–71.5
–71.0
–70.5
–70.0
–69.0
–68.5
–69.5
–73.0
10
100
INPUT FREQUENCY (kHz)
VDD = 3.6V
VDD = 3V
VDD = 2.7V
TEMP = 25
°C
VDD = 1.8V
VDD = 1.6V
VDD = 2.2V
02643-011
Figure 10. AD7466 SNR vs. Analog Input Frequency
at 100 kSPS for Various Supply Voltages
–65
THD
(dB)
–83
–81
–79
–77
–75
–73
–69
–67
–71
–85
10
100
INPUT FREQUENCY (kHz)
VDD = 3.6V
VDD = 3V
VDD = 2.7V
TEMP = 25
°C
VDD = 1.8V
VDD = 1.6V
VDD = 2.2V
02643-012
Figure 11. AD7466 THD vs. Analog Input Frequency
at 100 kSPS for Various Supply Voltages
–76
THD
(dB)
–83
–82
–81
–80
–79
–78
–77
–84
10
100
INPUT FREQUENCY (kHz)
RIN = 510Ω
RIN = 10Ω
TEMP = 25
°C
VDD = 2.7V
RIN = 100Ω
RIN = 0Ω
RIN = 1kΩ
02643-013
Figure 12. AD7466 THD vs. Analog Input Frequency
for Various Source Impedances
1.0
INL
ERROR
(LSB)
–0.8
–0.6
–0.4
–0.2
0
0.2
0.4
0.6
0.8
–1.0
0
512
1024
1536
2048
2560
3072
3584
4096
CODE
VDD = 1.8V
TEMP = 25
°C
fIN = 50Hz
fSAMPLE = 100kSPS
02643-014
Figure 13. AD7466 INL Performance
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