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參數(shù)資料
| 型號(hào)： | TLC2543QDWRQ1 |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 11-CH 12-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | PLASTIC, SOIC-20 |
| 文件頁數(shù)： | 5/25頁 |
| 文件大?。?/td> | 413K |
| 代理商： | TLC2543QDWRQ1 |
TLC2543Q1
12BIT ANALOGTODIGITAL CONVERTERS
WITH SERIAL CONTROL AND 11 ANALOG INPUTS
SGLS218D NOVEMBER 2003 REVISED MAY 2008
13
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
PRINCIPLES OF OPERATION
power up and initialization
After power up, CS must be taken from high to low to begin an I/O cycle. EOC is initially high, and the input data
register is set to all zeroes. The contents of the output data register are random and the first conversion result
should be ignored. To initialize during operation, CS is taken high and is then returned low to begin the next I/O
cycle. The first conversion after the device has returned from the power-down state may not read accurately
due to internal device settling.
Table 1. Operational Terminology
Current (N) I/O cycle
The entire I/O CLOCK sequence that transfers address and control data into the data register and clocks
the digital result from the previous conversion from DATA OUT.
Current (N) conversion cycle
The conversion cycle starts immediately after the current I/O cycle. The end of the current I/O cycle is the
last clock falling edge in the I/O CLOCK sequence. The current conversion result is loaded into the output
register when conversion is complete.
Current (N) conversion result
The current conversion result is serially shifted out on the next I/O cycle.
Previous (N 1) conversion cycle
The conversion cycle just prior to the current I/O cycle.
Next (N + 1) I/O cycle
The I/O period that follows the current conversion cycle.
Example: In the 12-bit mode, the result of the current conversion cycle is a 12-bit serial-data stream clocked out during
the next I/O cycle. The current I/O cycle must be exactly 12 bits long to maintain synchronization, even
when this corrupts the output data from the previous conversion. The current conversion is begun
immediately after the twelfth falling edge of the current I/O cycle.
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| TLC254ACNE4 | 功能描述:運(yùn)算放大器 - 運(yùn)放 LinCMOS Quad Op Amp RoHS:否 制造商:STMicroelectronics 通道數(shù)量:4 共模抑制比（最小值）:63 dB 輸入補(bǔ)償電壓:1 mV 輸入偏流（最大值）:10 pA 工作電源電壓:2.7 V to 5.5 V 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:QFN-16 轉(zhuǎn)換速度:0.89 V/us 關(guān)閉:No 輸出電流:55 mA 最大工作溫度:+ 125 C 封裝:Reel |
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