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參數資料
| 型號： | TLC4541IDRG4 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 1-CH 16-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO8 |
| 封裝： | GREEN, PLASTIC, SOIC-8 |
| 文件頁數： | 8/27頁 |
| 文件大小： | 666K |
| 代理商： | TLC4541IDRG4 |
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TLC4541, TLC4545
SLAS293 DECEMBER 2001
16
www.ti.com
PRINCIPLES OF OPERATION
1
MSB
9
8
2
2
MSB
MSB
MSB1
19
8
2
OR
th7
tsu7
th7
tsu6
tcyc(reset)
Normal Cycle Begins
Initialization Cycle (Reset)
SCLK
CS
FS
SDO
Figure 21. Critical Timing: Initialization Cycle (TLC4541 Only)
detailed description
The TLC4541/5 are successive approximation (SAR) ADCs utilizing a charge-redistribution DAC. Figure 22
shows a simplified version of the ADC. The sampling capacitor acquires the signal on AIN (or the AIN(+) pin for
TLC4545) 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.
AIN/
AIN(+)
+
GND/
AIN()
Charge
Redistribution
DAC
ADC Code
Control
Logic
Ci
Figure 22. Simplified SAR Circuit
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相關代理商/技術參數 |
參數描述 |
|---|---|
| TLC4545 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:5-V, LOW POWER, 16-BIT, 200-KSPS SERIAL ANALOG TO DIGITAL CONVERTERS WITH AUTO POWER DOWN |
| TLC4545EVM | 功能描述:數據轉換 IC 開發工具 TLC4545 Eval Mod RoHS:否 制造商:Texas Instruments 產品: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 |
| TLC4545ID | 功能描述:模數轉換器 - ADC 16-Bit 200KSPS Serial Out 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 |
| TLC4545ID | 制造商:Texas Instruments 功能描述:IC 16BIT ADC SMD 4545 SOIC8 |
| TLC4545IDG4 | 功能描述:模數轉換器 - ADC 16-Bit 200KSPS Serial Out 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 |
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