參數(shù)資料
型號： THS1040CPWR
廠商： Texas Instruments, Inc.
英文描述： TAPE,SCOTCHCODE? WIRE MARKER TAPE REFILLS FOR WIRE MARKER TAPE DISPENSER,TAPE,SCOTCHCODE SDR WIRE MARKER TAPE REFILL A" RoHS Compliant: Yes
中文描述： 3伏，10位，40 MSPS的CMOS模擬數(shù)字轉(zhuǎn)換器
文件頁數(shù)： 17/32頁
文件大小： 545K
代理商： THS1040CPWR
SLAS290C OCTOBER 2001 REVISED OCTOBER 2004
17
www.ti.com
PRINCIPLES OF OPERATION
internal reference mode (MODE = AV
DD
or AV
DD
/2)
Sample
and
Hold
X1
X1
ADC
Core
AIN+
AIN
Internal
Reference
Buffer
VREF
AGND
AVDD + VREF
2
AVDD VREF
2
Figure 22. ADC Reference Generation, MODE = AV
DD
/2
Connecting MODE to AV
DD
or AV
DD
/2 enables the internal ADC references buffer A2. The outputs of A2 are
connected to the REFT and REFB pins and its inputs are connected to pins VREF and AGND. The resulting
voltages at REFT and REFB are:
REFT
AVDD
VREF
2
REFB
AVDD
VREF
2
Depending on the connection of the REFSENSE pin, the voltage on VREF may be driven by an off-chip source
or by the internal bandgap reference A1 (see
onboard reference generator
) to match the THS1040 input range
to their application requirements.
When MODE = AV
DD
the BIASREF pin provides a buffered, stabilized AV
DD
/2 output voltage that can be used
as a bias reference for ac coupling networks connecting the signal sources to the AIN+ or AIN inputs. This
removes the need for the user to provide a stabilized external bias reference.
(7)
(8)
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相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS1040CPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40 MSPS Low Power 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
THS1040EVM 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 THS1040 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)品:Demonstration Kits 類型:ADC 工具用于評估:ADS130E08 接口類型:SPI 工作電源電壓:- 6 V to + 6 V
THS1040IDW 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40 MSPS Low Power 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
THS1040IDWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40 MSPS Low Power 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
THS1040IDWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10 Bit 40 MSPS Low Power 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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