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參數(shù)資料
型號(hào)： THS10082CDAR
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 2-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO32
封裝： GREEN, PLASTIC, TSSOP-32
文件頁(yè)數(shù)： 25/37頁(yè)
文件大小： 375K
代理商： THS10082CDAR
THS10082
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
THS100821
CS0
CS1
RD
WR
DATA_AV
DATA
CONV_CLK
THS100822
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 VREFP and VREFM (either internal
or external reference voltage). The analog input voltage range goes from VREFM to VREFP. This means that VREFM defines
the minimum voltage, which can be applied to the ADC. VREFP defines the maximum voltage, which can be applied to the
ADC. The internal reference source provides the voltage VREFM of 1.5 V and the voltage VREFP of 3.5 V. The resulting
analog input voltage swing of 2 V can be expressed by:
V
REFM v
AINP
v V
REFP
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(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS10082EVM 功能描述:EVALUATION MODULE FOR THS10082 RoHS:是 類別:編程器，開(kāi)發(fā)系統(tǒng) >> 評(píng)估板 - 模數(shù)轉(zhuǎn)換器 (ADC) 系列:- 產(chǎn)品培訓(xùn)模塊:Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:1 系列:- ADC 的數(shù)量:1 位數(shù):12 采樣率（每秒）:94.4k 數(shù)據(jù)接口:USB 輸入范圍:±VREF/2 在以下條件下的電源（標(biāo)準(zhǔn)）:- 工作溫度:-40°C ~ 85°C 已用 IC / 零件:MAX11645 已供物品:板，軟件
THS10082IDA 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 BIT High Speed AD 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
THS10082IDAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 8 MSPS Lo-Pwr 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
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
THS1009CDA 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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