參數(shù)資料
型號(hào)： THS1031IDWRG4
廠商： TEXAS INSTRUMENTS INC
元件分類： ADC
英文描述： 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
封裝： GREEN, PLASTIC, SOIC-28
文件頁(yè)數(shù)： 16/42頁(yè)
文件大?。?/td> 730K
代理商： THS1031IDWRG4
THS1031
3-V TO 5.5-V, 10-BIT, 30 MSPS
CMOS ANALOG-TO-DIGITAL CONVERTER
SLAS242E – NOVEMBER 1999 – REVISED MARCH 2002
23
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
operating configuration examples (continued)
In Figure 25, the input signal is differential, so Mode = AVDD/2 (differential mode) is set to allow the inverse signal
to be applied to REFTS and REFBS. The differential input goes from – 0.8 V to 0.8 V, giving a total input signal
span of 1.6 V. Using a PGA gain of 1, REFTF – REFBF should therefore, equal 1.6 V. REFSENSE is connected
to resistors RA and RB (external divider mode) to make VREF = 1.6 V, that is RA/RB = 0.6 (see Figure 22).
AIN
REFTS
REFBS
REFTF
REFBF
REFSENSE
MODE
1.4 V
0.6 V
0.1
F
10
F
0.1
F
0.1
F
VREF = 1.6 V
RA
RB
1 V
1.4 V
0.6 V
1 V
AIN+
AIN–
AVDD
2
Figure 25. Differential Operation
Figure 26 shows a center span configuration for an input waveform swinging between 0.2 and 1.9 V. Pins
REFTS and REFBS are connected to a voltage source of 1.05 V, equal to the mid-scale of the input waveform.
With the PGA gain set to its default value of 1, REFTF – REFBF should be set equal to the span of the input
waveform, 1.7 V, so VREF is connected to an external source of 1.7 V. REFSENSE must be connected to AVDD
to disable the ORG output to VREF (see Figure 23) to allow this external source to be applied.
AIN
REFTS
REFBS
REFTF
REFBF
REFSENSE
MODE
1.9 V
0.2 V
0.1
F
10
F
0.1
F
0.1
F
1.05 V
DC SOURCE = 1.05 V
VREF
DC SOURCE = 1.7 V
AVDD
2
Figure 26. Center Span Operation
相關(guān)PDF資料
PDF描述
THS1031CDWR 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
THS1031IPW 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
THS1031IPWG4 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
THS1031IPWR 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
THS1031CPWRG4 1-CH 10-BIT PROPRIETARY METHOD ADC, PARALLEL ACCESS, PDSO28
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
THS1031IPW 功能描述:模數(shù)轉(zhuǎn)換器 - 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
THS1031IPWG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10B 30 MSPS ADC Sgl Ch. Integ. Pgmable 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
THS1031IPWR 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 30 MSPS 1-Ch 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
THS1031IPWRG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10-Bit 30 MSPS 1-Ch 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
THS1031SOIC 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7 V . 5.5 V, 10-BIT, 30 MSPS CMOS ANALOG-TO-DIGITAL CONVERTER
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