參數(shù)資料
型號： TLC2543-EVM
廠商： Texas Instruments, Inc.
英文描述： TLC2543 Evaluation Module(TLC2543評估板)
中文描述： 器TLC2543評估模塊（器TLC2543評估板）
文件頁數(shù)： 26/52頁
文件大小： 231K
代理商： TLC2543-EVM
Sensor Output Reference Select
2-12
2.4
Input Reference Voltage Select
The REF SELECT jumper allows ratiometric measurements (jumper set to
V
CC
) or allows absolute measurements (jumper set to REF V) relative to a volt-
age reference established by the TL1431 (D1). This voltage reference is pro-
grammed by resistors R22 and R23 to a voltage level of approximately 4.1 V.
2.4.1
Ratiometric Measurements
Ratiometric measurements are measurements made relative to the 5-V power
supply voltage. If a sensor or input signal voltage is used that varies proportion-
ally to the 5-V power supply voltage (such as the potentiometer R13), then the
signal becomes a ratio of the absolute value of the power supply voltage.
Therefore, when the reference voltage is connected to 5 V (REF SELECT
jumper position at V
CC
), the TLC2543 tracks the power supply voltage
and provides a converted result independent of the power supply voltage vari-
ations.
2.4.2
Absolute Measurements
Absolute measurements are required when the input analog signal does not
change with the power supply voltage. The optical and temperature sensors
are in this category. For these sensors, the REF SELECT jumper is set to the
REF V position.
相關(guān)PDF資料
PDF描述
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TLC2558(中文) 5-V, 12-BIT, 400 KSPS, 8 Channel, Low Power, Serial Analog-to-Digital Converters With Auto Power Down(2.7V-5.5V,12位,400KSPS 8通道,低功耗,自動掉電的串行A/D轉(zhuǎn)換器)
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參數(shù)描述
TLC2543IDB 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 66kSPS Ser Out Prog MSB/LSB First 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
TLC2543IDBG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 66kSPS Ser Out Prog MSB/LSB First 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
TLC2543IDBR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 66kSPS Ser Out Prog MSB/LSB First 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
TLC2543IDBRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12Bit 66kSPS Ser Out Prog MSB/LSB First 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
TLC2543IDBRG4Q1 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 12B 66kSPS ADC Ser. Out 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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