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參數(shù)資料
| 型號： | TLV1570EVM |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | TLV1570 Evaluation Module(TLV1570評估板) |
| 中文描述： | TLV1570評估模塊（TLV1570評估板） |
| 文件頁數(shù)： | 15/34頁 |
| 文件大?。?/td> | 226K |
| 代理商： | TLV1570EVM |
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Voltage Reference
2-5
Analog Configuration
2.7
Voltage Reference
There are three ways to generate the voltage reference:
Onboard reference
External reference
Internal reference of the TLV1570 (See TLV1570 data sheet, literature
number SLAS169. The internal reference cannot be used for the
onboard DAC.)
2.7.1
Onboard Reference
To use the onboard voltage reference, W1 must be set. The reference voltage
is generated by D1, R5, and U5. The Zener diode (D1) determines the voltage,
which is buffered by U5 and connected to the reference input of the TLV1570.
To get the same full-scale range, the reference voltage is divided by two
(R17, R18) before it is applied to the TLV5616 (the DAC has a built-in
2
×
amplifier).
2.7.2
External Reference
To use the onboard voltage reference, W1 must be removed from the board.
The reference voltage must be supplied on pin 23 of J1. To get the same
full-scale range, the reference voltage is divided by two (R17, R18) before it
is applied to the TLV5616 (the DAC has a built-in 2
×
amplifier).
The external reference voltage must not exceed the supply voltage
by more than 0.3 V.
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相關(guān)代理商/技術(shù)參數(shù) |
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|---|---|
| TLV1570IDW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.25MSPS Ser 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 |
| TLV1570IDWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP 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 |
| TLV1570IDWR | 制造商:Texas Instruments 功能描述: |
| TLV1570IPW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.25MSPS Ser 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 |
| TLV1570IPWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 1.25 MSPS 8-Ch DSP 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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