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參數(shù)資料
| 型號： | ADS8365 |
| 英文描述： | 16-Bit, 250kSPS, 6-Channel, Simultaneous Sampling SAR ANALOG-TO-DIGITAL CONVERTERS |
| 中文描述： | 16位，AD7691的6通道同步采樣SAR類比數(shù)位轉(zhuǎn)換器 |
| 文件頁數(shù)： | 17/33頁 |
| 文件大?。?/td> | 441K |
| 代理商： | ADS8365 |
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CM+V
REF
+V
REF
-
V
REF
Single-Ended Inputs
t
+IN
CMVoltage
CM V
-
REF
CM+1/2V
REF
Differential Inputs
t
+IN
-
IN
CMVoltage
CM 1/2V
-
REF
-
IN = CM Voltage
+V
REF
-
V
REF
Commonmode voltage (Differential mode) = (+IN)
(IN)
2
. Commonmode voltage (Singleended mode) = IN
2.7
2.3
AV
= 5V
DD
3.8
1.2
5
4
3
2
1
0
1
-
Single-Ended Input
C
1.0
1.5
2.0
2.5
3.0
V
(V)
REF
2.6
5
4
3
2
1
0
1
-
C
Differential Input
AV
= 5V
DD
4.0
0.45
4.55
1.0
1.5
2.0
2.5
3.0
V
(V)
REF
2.6
1.0
ADS8365
SBAS362A–AUGUST 2006–REVISED SEPTEMBER 2006
NOTES:
The maximum differential voltage between +IN and –IN of the ADS8365 is V
REF
. See
Figure 23
and
Figure 24
for a
further explanation of the common voltage range for single-ended and differential inputs.
Figure 22. Using the ADS8365 in the Single-Ended and Differential Input Modes
Figure 23. Single-Ended Input: Common-Mode
Voltage Range vs V
REF
Figure 24. Differential Input: Common-Mode
Voltage Range vs V
REF
When the input is differential, the amplitude of the
input is the difference between the +IN and –IN
input, or: (+IN) – (–IN). The peak-to-peak amplitude
of each input is
±
1/2V
REF
around this common
voltage.
However,
since
out-of-phase, the peak-to-peak amplitude of the
differential voltage is +V
REF
to –V
REF
. The value of
V
also determines the range of the voltage that
may be common to both inputs, as shown in
Figure 24
.
In each case, care should be taken to ensure that
the output impedance of the sources driving the +IN
(20pF) between the positive and negative input helps
to match the impedance. Otherwise, a mismatch may
result in offset error, which will change with both
temperature and input voltage.
the
inputs
are
180
°
The input current on the analog inputs depends on a
number of factors, such as sample rate or input
voltage. Essentially, the current into the ADS8365
17
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
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| ADS8365IPAG | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16B 250kSPS 6Ch Simu Sampling SAR ADC 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 |
| ADS8365IPAGG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16B 250kSPS 6Ch Simu Sampling SAR ADC 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 |
| ADS8365IPAGG-4 | 制造商:Texas Instruments 功能描述:IC, SM 16-BIT ADC 6CH SAR |
| ADS8365IPAGR | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16 B 250k SPS 6 Ch Smltns Smplg SARADC 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 |
| ADS8365IPAGRG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 16B 250kSPS 6Ch Simu Sampling SAR ADC 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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