參數(shù)資料
型號(hào)： AD7912AUJZ-REEL7
廠商： Analog Devices Inc
文件頁數(shù)： 5/32頁
文件大?。?/td> 0K
描述： IC ADC 10BIT DUAL 2CH TSOT-23-8
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 10
采樣率（每秒）： 1M
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）： 20mW
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-23-8 薄型，TSOT-23-8
供應(yīng)商設(shè)備封裝： TSOT-23-8
包裝： 標(biāo)準(zhǔn)包裝
輸入數(shù)目和類型： 2 個(gè)單端，單極
其它名稱： AD7912AUJZ-REEL7DKR
AD7912/AD7922
Rev. 0 | Page 13 of 32
TYPICAL PERFORMANCE CHARACTERISTICS
Figure 10 and Figure 11 show typical FFT plots for the AD7922
and AD7912, respectively, at a 1 MSPS sample rate and 100 kHz
input frequency.
Figure 12 shows the SINAD performance versus the input
frequency for various supply voltages while sampling at 1 MSPS
with a SCLK frequency of 18 MHz for the AD7922.
Figure 13 shows the SNR performance versus the input fre-
quency for various supply voltages while sampling at 1 MSPS
with an SCLK frequency of 18 MHz for the AD7922.
Figure 14 and Figure 15 show INL and DNL performance for
the AD7922.
Figure 16 shows a graph of the THD versus the analog input
frequency for different source impedances when using a supply
voltage of 3.6 V and a sampling rate of 1 MSPS. See the Analog
Input section.
Figure 17 shows a graph of the THD versus the analog input
frequency for various supply voltages while sampling at 1 MSPS
with an SCLK frequency of 18 MHz.
Figure 18 shows the shutdown current versus the voltage supply
for different operating temperatures.
5
–15
–35
–55
–75
–95
–115
0
50
100
150
200
250
300
350
400
450
500
04351-0-040
S
NR
(dB)
FREQUENCY (kHz)
8192 POINT FFT
VDD = 2.7V
FSAMP = 1MSPS
FIN = 100kHz
SNR = 73.1dB
SINAD = 72.55dB
THD = –81.78dB
SFDR = –83.03dB
Figure 10. AD7922 Dynamic Performance at 1 MSPS
–10
–30
–50
–70
–90
–110
0
50
100
150
200
250
300
350
400
450
500
04351-0-041
S
NR
(dB)
FREQUENCY (kHz)
8192 POINT FFT
VDD = 2.7V
FSAMP = 1MSPS
FIN = 100kHz
SNR = 61.88dB
SINAD = 61.83dB
THD = –81.12dB
SFDR = –84.92dB
Figure 11. AD7912 Dynamic Performance at 1 MSPS
–67
–74
–73
–72
–71
–70
–69
–68
10
100
1000
04351-0-043
S
INAD
(dB)
FREQUENCY (kHz)
VDD = 2.7V
VDD = 2.35V
VDD = 5.25V
VDD = 4.75V
VDD = 3.6V
Figure 12. AD7922 SINAD vs. Input Frequency at 1 MSPS
–71.6
–71.8
–72.0
–72.4
–72.2
–72.6
–72.8
–73.0
–73.2
–73.4
–73.6
10
100
1000
04351-0-044
S
NR
(dB)
FREQUENCY (kHz)
VDD = 2.35V
VDD = 5.25V
VDD = 2.7V
VDD = 4.75V
VDD = 3.6V
Figure 13. AD7922 SNR vs. Input Frequency at 1 MSPS
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AD7914BRUZ 功能描述:IC ADC 10BIT 4CH 1MSPS 16TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
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