參數(shù)資料
型號： THS10082CDA
廠商： Texas Instruments, Inc.
元件分類： ADC
英文描述： 10 bit TWO ANALOG INPUT, 8 MSPS SIMULTANEOUS SAMPLING ANALOG TO DIGITAL CONVERTER
中文描述： 10位2個模擬輸入，8 MSPS的同步采樣模數(shù)轉換器
文件頁數(shù)： 31/37頁
文件大?。?/td> 263K
代理商： THS10082CDA
SLAS254B
–
MAY 2002
–
REVISED NOVEMBER 2002
www.ti.com
31
INTERFACING THE THS10082 TO THE TMS320C6201 DSP
The following application circuit shows an interface of the THS10082 to the TMS320C6201. The read (using RD,
RD-controlled) and write timings (using WR, WR-controlled) shown before are valid for this specific interface.
CS0
CS1
RD
WR
DATA_AV
DATA
CONV_CLK
THS10082
–
1
CS0
CS1
RD
WR
DATA_AV
DATA
CONV_CLK
THS10082
–
2
TMS320C6201
CE1
EA20
ARE
AWE
EXT_INT6
DATA
TOUT1
TOUT2
EA21
EXT_INT7
ANALOG INPUT CONFIGURATION AND REFERENCE VOLTAGE
The THS10082 features two analog input channels. These can be configured for either single-ended or differential
operation. Best performance is achieved in differential mode. Figure 40 shows a simplified model, where a single-ended
configuration for channel AINP is selected. The reference voltages for the ADC itself are V
REFP
and V
REFM
(either internal
or external reference voltage). The analog input voltage range goes from V
REFM
to V
REFP
. This means that V
REFM
defines
the minimum voltage, which can be applied to the ADC. V
REFP
defines the maximum voltage, which can be applied to the
ADC. The internal reference source provides the voltage V
REFM
of 1.5 V and the voltage V
REFP
of 3.5 V. The resulting
analog input voltage swing of 2 V can be expressed by:
VREFM
AINP
VREFP
10-Bit
ADC
VREFP
VREFM
AINP
Figure 40. Single-Ended Input Stage
A differential operation is desired for many applications. Figure 41 shows a simplified model for the analog inputs AINM
and AINP, which are configured for differential operation. This configuration has a few advantages, which are discussed
in the following paragraphs.
(1)
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相關代理商/技術參數(shù)
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THS10082CDAG4 功能描述:模數(shù)轉換器 - ADC 10 Bit 8 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
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THS10082IDA 功能描述:模數(shù)轉換器 - ADC 10 BIT High Speed AD RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
THS10082IDAG4 功能描述:模數(shù)轉換器 - ADC 10 Bit 8 MSPS Lo-Pwr RoHS:否 制造商:Texas Instruments 通道數(shù)量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32
THS1009 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT, 2 ANALOG INPUT, 8 MSPS, SIMULTANEOUS SAMPLING ANALOG-TO-DIGITAL CONVERTER
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