參數(shù)資料
型號: AD7680ARM
廠商: Analog Devices Inc
文件頁數(shù): 2/24頁
文件大?。?/td> 0K
描述: IC ADC 16BIT LP 100KSPS 8-MSOP
標準包裝: 50
系列: PulSAR®
位數(shù): 16
采樣率(每秒): 100k
數(shù)據(jù)接口: DSP,MICROWIRE?,QSPI?,串行,SPI?
轉換器數(shù)目: 1
功率耗散(最大): 26.4mW
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: 8-TSSOP,8-MSOP(0.118",3.00mm 寬)
供應商設備封裝: 8-MSOP
包裝: 管件
輸入數(shù)目和類型: 1 個單端,單極
AD7680
Rev. A | Page 10 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 5 shows a typical FFT plot for the AD7680 at 100 kSPS
sample rate and 10 kHz input frequency. Figure 6 shows the
signal-to-(noise + distortion) ratio performance versus the
input frequency for various supply voltages while sampling at
100 kSPS with an SCLK of 2.5 MHz.
Figure 7 shows a graph of the total harmonic distortion versus
the analog input frequency for various supply voltages, while
Figure 8 shows a graph of the total harmonic distortion versus
the analog input frequency for various source impedances (see
the Analog Input section). Figure 9 and Figure 10 show the
typical INL and DNL plots for the AD7680.
03643-0-021
dB
–140
–120
–100
–80
–60
–40
–20
–160
0
10k
20k
30k
40k
FREQUENCY (kHz)
50k
0
VDD = 5V
FSAMPLE = 100kSPS
FIN = 10kHz
SNR = 88.28dB
SINAD = 87.82dB
THD = –97.76dB
SFDR = –98.25dB
Figure 5. AD7680 Dynamic Performance at 100 kSPS
03643-0-016
S
INAD
(d
B)
80
10
INPUT FREQUENCY (kHz)
100
85
90
95
VDD = 2.5V
VDD = 5.25V
VDD = 4.75V
VDD = 4.3V
VDD = 3.6V
VDD = 3.0V
VDD = 2.7V
FSAMPLE = 100kSPS
TA = 25°C
Figure 6. AD7680 SINAD vs. Analog Input Frequency
for Various Supply Voltages at 100 kSPS
03643-0-017
T
HD
(d
B)
90
10
INPUT FREQUENCY (kHz)
100
95
105
110
VDD = 4.75V
VDD = 4.3V
VDD = 3.6V
VDD = 3.0V
VDD = 2.7V
VDD = 2.5V
VDD = 5.25V
FSAMPLE = 100kSPS
TA = 25°C
Figure 7. AD7680 THD vs. Analog Input Frequency
for Various Supply Voltages at 100 kSPS
03643-0-018
THD
(dB)
75
10
INPUT FREQUENCY (kHz)
100
95
100
80
90
85
105
110
FSAMPLE = 100kSPS
TA = 25°C
VDD = 4.75V
RIN = 10Ω
RIN = 50Ω
RIN = 100Ω
RIN = 1000Ω
Figure 8. AD7680 THD vs. Analog Input Frequency
for Various Source Impedances
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