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參數資料
| 型號： | TLV571IPW |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 8-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24 |
| 封裝： | GREEN, PLASTIC, TSSOP-24 |
| 文件頁數： | 22/28頁 |
| 文件大?。?/td> | 479K |
| 代理商： | TLV571IPW |
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TLV571
2.7 V TO 5.5 V, 1-CHANNEL, 8-BIT,
PARALLEL ANALOG-TO-DIGITAL CONVERTER
SLAS239A – SEPTEMBER 1999 – REVISED FEBRUARY 2000
3
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description
analog-to-digital SAR converter
_
+
Charge
Redistribution
DAC
SAR
Register
REFM
ADC Code
Control
Logic
Ain
Figure 1
The TLV571 is a successive-approximation ADC utilizing a charge redistribution DAC. Figure 1 shows a
simplified version of the ADC.
The sampling capacitor acquires the signal on Ain during the sampling period. When the conversion process
starts, the SAR control logic and charge redistribution DAC are used to add and subtract fixed amounts of charge
from the sampling capacitor to bring the comparator into a balanced condition. When the comparator is
balanced, the conversion is complete and the ADC output code is generated.
sampling frequency, fs
The TLV571 requires 16 CLKs for each conversion, therefore the equivalent maximum sampling frequency
achievable with a given CLK frequency is:
fs(max) = (1/16) fCLK
The TLV571 is software configurable. The first two MSB bits, D(7,6) are used to address which register to set.
The remaining six bits are used as control data bits. There are two control registers, CR0 and CR1, that are user
configurable. All of the register bits are written to the control register during write cycles. A description of the
control registers is shown in Figure 2.
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| TLV571IPWG4 | 功能描述:模數轉換器 - ADC 8-Bit 1.25 MSPS Single Ch. RoHS:否 制造商:Texas Instruments 通道數量:2 結構:Sigma-Delta 轉換速率: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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLV571PW | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7 V TO 5.5 V, 1-CHANNEL, 8-BIT, PARALLEL ANALOG-TO-DIGITAL CONVERTER |
| TLV5734 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:TRIPLE 8 BIT 30 MSPS ADC WITH HIGH -PRECISION CLAMP FOR YUV/RGB VIDEO |
| TLV5734PAG | 功能描述:視頻模擬/數字化轉換器集成電路 8B 30MSPS ADC Triple Ch Digital Clamp RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
| TLV5734PAGG4 | 功能描述:視頻模擬/數字化轉換器集成電路 8B 30 MSPS ADC 3Ch RoHS:否 制造商:Texas Instruments 輸入信號類型:Differential 轉換器數量:1 ADC 輸入端數量:4 轉換速率:3 Gbps 分辨率:8 bit 結構: 輸入電壓:3.3 V 接口類型:SPI 信噪比: 電壓參考: 電源電壓-最大:3.45 V 電源電壓-最小:3.15 V 最大功率耗散: 最大工作溫度:+ 85 C 最小工作溫度:- 40 C 封裝 / 箱體:TCSP-48 封裝:Reel |
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