參數(shù)資料
型號(hào)： AD7910AKSZ-REEL
廠商： Analog Devices Inc
文件頁數(shù)： 2/24頁
文件大?。?/td> 0K
描述： IC ADC 10BIT SRL 250KSPS SC70-6
標(biāo)準(zhǔn)包裝： 10,000
位數(shù)： 10
采樣率（每秒）： 250k
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）： 15mW
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： 6-TSSOP，SC-88，SOT-363
供應(yīng)商設(shè)備封裝： SC-70-6
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 1 個(gè)單端，單極
配用： EVAL-AD7910CBZ-ND - BOARD EVALUATION FOR AD7910
AD7910/AD7920
Rev. C | Page 10 of 24
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 7 and Figure 8 show a typical FFT plot for the AD7920 and
AD7910, respectively, at a 250 kSPS sampling rate and a 100 kHz
input frequency.
Figure 9 shows the signal-to-(noise + distortion) ratio performance
vs. input frequency for various supply voltages while sampling at
250 kSPS with an SCLK frequency of 5 MHz for the AD7920.
Figure 10 and Figure 11 show typical INL and DNL performance
for the AD7920.
Figure 12 shows a graph of the total harmonic distortion vs. analog
input frequency for different source impedances when using a
supply voltage of 3.6 V and sampling at a rate of 250 kSPS. See the
Figure 13 shows a graph of the total harmonic distortion vs.
analog input signal frequency for various supply voltages while
sampling at 250 kSPS with an SCLK frequency of 5 MHz.
FREQUENCY (kHz)
–5
–55
–115
0
125
25
S
NR
(dB)
50
75
100
–15
–35
–75
–95
8192 POINT FFT
VDD = 2.7V
fSAMPLE = 250kSPS
fIN = 100kHz
SINAD = 72.05dB
THD = –82.87dB
SFDR = –87.24dB
02976-007
Figure 7. AD7920 Dynamic Performance at 250 kSPS
FREQUENCY (kHz)
–45
–105
S
NR
(dB)
–5
15
–25
–65
–85
0
125
25
50
75
100
02976-008
8192 POINT FFT
VDD = 2.35V
fSAMPLE = 250kSPS
fIN = 100kHz
SINAD = 61.67dB
THD = –79.59dB
SFDR = –82.93dB
Figure 8. AD7910 Dynamic Performance at 250 kSPS
FREQUENCY (kHz)
–72.0
10
1000
S
INAD
(dB)
100
–73.0
–73.5
VDD = 5.25V
VDD = 2.35V
VDD = 2.7V
VDD = 4.75V V
DD = 3.6V
–72.5
–71.0
–71.5
02976-009
Figure 9. AD7920 SINAD vs. Input Frequency at 250 kSPS
CODE
1.0
0.4
–0.2
0
1024
INL
E
RROR
(LS
B
)
512
0.8
0.6
0.2
0
–0.4
–0.6
–0.8
–1.0
1536
2048
2560
3072
3584
4096
VDD = 2.35V
TEMP = 25
°C
fSAMPLE = 250kSPS
02976-010
Figure 10. AD7920 INL Performance
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