參數(shù)資料
型號(hào)： ADS7870EA
英文描述： 12-Bit ADC, MUX, PGA and Internal Reference DATA ACQUISITION SYSTEM
中文描述： 12位ADC，復(fù)用器，PGA和內(nèi)部基準(zhǔn)數(shù)據(jù)采集系統(tǒng)
文件頁(yè)數(shù)： 23/27頁(yè)
文件大?。?/td> 262K
代理商： ADS7870EA
23
ADS7870
Figure 12 shows an example of a conversion start using an
8-bit write operation to the Gain/Mux Register with the
CNV/BSY bit set to “1”. The double rising arrow on SCLK
indicates where the data is latched into the Gain/Mux regis-
ter and the double arrow on CCLK indicates when the
conversion will start. The example is for LSB first, CCLK
divider = 1, and SCLK active on rising edge.
Figure 13 shows the timing of a conversion start using the
convert start instruction byte when a conversion is already in
progress (indicated by BUSY high). The double rising arrow
on SCLK indicates when the instruction is latched. The
second falling arrow on CCLK indicates when the conver-
sion cycle would have started had a conversion not been in
progress. The double falling arrow on CCLK indicates
where the conversion cycle will actually start (immediately
after completion of the previous conversion). This example
is for LSB first, CCLK divider = 2, and SCLK active on
rising edge. Notice that BUSY will be low for two CCLK
periods because the CCLK divider = 2.
FIGURE 12. Timing Diagram Example for a Conversion Start using 8-Bit Write to the Gain/Mux Register.
y
z
{{
|
yy
z
A0
A1
A2
A3
A4
0
0
0
M0
M1
M2
M3
G0
G1
G2
1
DIN
CS
CCLK
BUSY
Conversion Starts
{{{{
||||
DOUT
yyyy
zzzz
M0
M1
M2
M3
G0
G1
G2
1
Normal Start
Delayed Start
SCLK
DIN
CS
CCLK
BUSY
FIGURE 13. Timing Diagram Example of Delayed Conversion Start with Serial Interface.
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
ADS7870EA/1K 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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
ADS7870EA/1KG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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
ADS7870EA/250 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Analog-to-Digital Converter， 12-Bit
ADS7870EAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12-Bit ADC MUX PGA 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
ADS7870EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開(kāi)發(fā)工具 ADS7870 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評(píng)估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
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