參數(shù)資料
型號(hào)： ADS7817
英文描述： 12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
中文描述： 12位差分輸入微功耗采樣模擬到數(shù)字轉(zhuǎn)換器
文件頁(yè)數(shù)： 11/15頁(yè)
文件大?。?/td> 172K
代理商： ADS7817
11
ADS7817
D
OUT
1.4V
Test Point
3k
100pF
C
LOAD
t
r
D
OUT
V
OH
V
OL
t
f
t
dDO
t
hDO
D
OUT
DCLOCK
V
OH
V
OL
V
IL
D
OUT
Test Point
t
dis
Waveform 2, t
en
t
dis
Waveform 1
100pF
C
LOAD
3k
t
dis
CS/SHDN
D
OUT
Waveform 1
(1)
D
OUT
Waveform 2
(2)
90%
10%
V
IH
1
B11
2
t
en
CS/SHDN
DCLOCK
V
OL
D
OUT
V
CC
Load Circuit for t
dDO
, t
r
, and t
f
Voltage Waveforms for D
OUT
Rise and Fall Times t
r
, and t
f
Voltage Waveforms for D
OUT
Delay Times, t
dDO
Load Circuit for t
dis
and t
den
Voltage Waveforms for t
en
FIGURE 5. Timing Diagrams and Test Circuits for the Parameters in Table I.
Voltage Waveforms for t
dis
NOTES: (1) Waveform 1 is for an output with internal conditions such that
the output is HIGH unless disabled by the output control. (2) Waveform 2
is for an output with internal conditions such that the output is LOW unless
disabled by the output control.
1000
100
10
1
S
μ
A
1
10
100
1000
Sample Rate (kHz)
T
A
= 25°C
V
CC
= +5V
V
REF
= +2.5V
f
CLK
= 3.2MHz
FIGURE 6. Maintaining f
CLK
at the Highest Possible Rate
Allows Supply Current to Drop Directly with
Sample Rate.
FIGURE 7. Scaling f
CLK
Reduces Supply Current Only
Slightly with Sample Rate.
1000
100
10
1
S
μ
A
1
10
100
1000
Sample Rate (kHz)
T
A
= 25°C
V
CC
= +5V
V
REF
= +2.5V
f
CLK
= 16 f
SAMPLE
相關(guān)PDF資料
PDF描述
ADS7817B 12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7817C 12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7818 2SC5161
ADS7818E 2SC5161
ADS7818EB 2SC5161
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7817B 制造商:BB 制造商全稱:BB 功能描述:12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7817C 制造商:BB 制造商全稱:BB 功能描述:12-Bit Differential Input Micro Power Sampling ANALOG-TO-DIGITAL CONVERTER
ADS7817E 制造商:TI 制造商全稱:Texas Instruments 功能描述:12-Bit Differential Input Micro Power Sampling
ADS7817E/250 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Differential In MicroPwr Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
ADS7817E/250G4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit Differential In MicroPwr Sampling RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結(jié)構(gòu):Sigma-Delta 轉(zhuǎn)換速率:125 SPs to 8 KSPs 分辨率:24 bit 輸入類型:Differential 信噪比:107 dB 接口類型:SPI 工作電源電壓:1.7 V to 3.6 V, 2.7 V to 5.25 V 最大工作溫度:+ 85 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-32
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