參數(shù)資料
型號(hào)： AD7993BRUZ-1
廠商： Analog Devices Inc
文件頁數(shù)： 9/32頁
文件大?。?/td> 0K
描述： IC ADC 10BIT 4CHAN I2C 16TSSOP
標(biāo)準(zhǔn)包裝： 96
位數(shù)： 10
采樣率（每秒）： 188k
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 2.2mW
電壓電源： 單電源
工作溫度： -40°C ~ 125°C
安裝類型： 表面貼裝
封裝/外殼： 16-TSSOP（0.173"，4.40mm 寬）
供應(yīng)商設(shè)備封裝： 16-TSSOP
包裝： 管件
輸入數(shù)目和類型： 4 個(gè)單端，單極
AD7993/AD7994
Rev. 0 | Page 17 of 32
For ac applications, removing high frequency components from
the analog input signal is recommended by use of an RC band-
pass filter on the relevant analog input pin. In applications
where harmonic distortion and signal-to-noise ratio are critical,
the analog input should be driven from a low impedance
source. Large source impedances significantly affect the ac
performance of the ADC. This may necessitate the use of an
input buffer amplifier. The choice of the op amp is a function of
the particular application.
When no amplifier is used to drive the analog input, the source
impedance should be limited to low values. The maximum
source impedance depends on the amount of total harmonic
distortion (THD) that can be tolerated. THD increases as
the source impedance increases, and performance degrades.
Figure 23 shows the THD vs. the analog input signal frequency
when using supply voltages of 3 V ± 10% and 5 V ± 10%.
Figure 24 shows the THD vs. the analog input signal frequency
for different source impedances.
–100
–90
–80
–70
–50
–40
THD
(dB)
10
1000
INPUT FREQUENCY (kHz)
03472-0-023
100
–60
VDD = 5.5V
VDD = 5V
VDD = 4.5V
VDD = 3.3V
VDD = 3V
VDD = 2.7V
Figure 23. THD vs. Analog Input Frequency for Various
Supply Voltages, FS = 136 kSPS, Mode 1
–100
–90
–80
–70
–50
–40
THD
(dB)
10
1000
INPUT FREQUENCY (kHz)
03472-0-024
100
–60
RIN = 50
RIN = 10
RIN = 100
RIN = 1000
VDD = 5V
Figure 24. THD vs. Analog Input Frequency for Various
Source Impedances for VDD = 5 V, 136 kSPS, Mode 1
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7993BRUZ-1REEL 功能描述:IC ADC 10BIT 4CHAN I2C 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:2,500 系列:- 位數(shù):16 采樣率（每秒）:15 數(shù)據(jù)接口:MICROWIRE?，串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:480µW 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:38-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:38-QFN（5x7） 包裝:帶卷 (TR) 輸入數(shù)目和類型:16 個(gè)單端，雙極；8 個(gè)差分，雙極 配用:DC1011A-C-ND - BOARD DELTA SIGMA ADC LTC2494
AD7993-X 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
AD7994 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 12-/10-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
AD7994-0 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
AD7994-1 制造商:AD 制造商全稱:Analog Devices 功能描述:4-Channel, 10- and 12-Bit ADCs with I2C Compatible Interface in 16-Lead TSSOP
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