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參數(shù)資料
| 型號： | TLC1542QDWREP |
| 廠商： | TEXAS INSTRUMENTS INC |
| 元件分類： | ADC |
| 英文描述： | 11-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO20 |
| 封裝： | GREEN, PLASTIC, SOIC-20 |
| 文件頁數(shù)： | 23/25頁 |
| 文件大?。?/td> | 573K |
| 代理商： | TLC1542QDWREP |
TLC1542EP, TLC1543EP
10BIT ANALOGTODIGITAL CONVERTERS WITH
SERIAL CONTROL AND 11 ANALOG INPUTS
SGLS152A JANUARY 2004 REVISED FEBRUARY 2006
7
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
converter and analog input (continued)
With each step of the successive-approximation process, the initial charge is redistributed among the
capacitors. The conversion process relies on charge redistribution to count and weigh the bits from MSB to LSB.
SC
Threshold
Detector
Node 512
REF
REF+
ST
512
VI
To Output
Latches
REF+
1
2
4
8
16
128
256
1
REF+
REF
ST
Figure 1. Simplified Model of the Successive-Approximation System
chip-select operation
The trailing edge of CS starts all modes of operation and can abort a conversion sequence in any mode. A
high-to-low transition on CS within the specified time during an ongoing cycle aborts the cycle and the device
returns to the initial state (the contents of the output data register remain at the previous conversion result).
Exercise care to prevent CS from being taken low close to the completion of the conversion, because the output
data can be corrupted.
reference voltage inputs
There are two reference inputs used with the device: REF+ and REF. These voltage values establish the upper
and lower limits of the analog input to produce a full-scale and zero reading respectively. The values of REF +,
REF , and the analog input should not exceed the positive supply or be lower than GND consistent with the
specified absolute maximum ratings. The digital output is at full scale when the input signal is equal to or higher
than REF + and at zero when the input signal is equal to or lower than REF .
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLC1542QFN | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 11Chl A/D 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
| TLC1542QN | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS |
| TLC1543 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS |
| TLC1543C | 制造商:TI 制造商全稱:Texas Instruments 功能描述:10-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL AND 11 ANALOG INPUTS |
| TLC1543CDB | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC Hi-Spd A/D Conv 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 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-32 |
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