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參數(shù)資料
| 型號： | TLV1571CPW |
| 廠商： | Texas Instruments, Inc. |
| 英文描述： | 2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT, PARALLEL ANALOG-TO-DIGITAL CONVERTERS |
| 中文描述： | 2.7 V至5.5 V，1-/8-CHANNEL，10位，并行模擬數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 4/29頁 |
| 文件大小： | 434K |
| 代理商： | TLV1571CPW |
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TLV1571, TLV1578
2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT,
PARALLEL ANALOG-TO-DIGITAL CONVERTERS
SLAS170C –MARCH 1999 – REVISED FEBRUARY 2000
4
POST OFFICE BOX 655303
DALLAS, TEXAS 75265
detailed description
_
+
Charge
Redistribution
DAC
SAR
Register
REFM
ADC Code
Control
Logic
Ain
Figure 1. Analog-to-Digital SAR Converter
The TLV1571/78 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, f
s
The TLV1571/TLV1578 requires 16 CLKs for each conversion, therefore the equivalent maximum sampling
frequency achievable with a given CLK frequency is:
f
s(max)
= (1/16) f
CLK
The TLV1571 and TLV1578 are software configurable. The first two MSB bits, D(9,8) are used to address which
register to set. The rest of the eight 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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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| TLV1571IDW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.2 MSPS PA 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 |
| TLV1571IDWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.2 MSPS PA 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 |
| TLV1571IPW | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 10bit 1.2 MSPS PA 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 |
| TLV1571IPWG4 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 1-Ch 10-Bit 1.25MSPS 8-Ch DSP/SPI 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 |
| TLV1572 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:2.7 V TO 5.5 V, 10-BIT, 1.25 MSPS SERIAL ANALOG-TO-DIGITAL CONVERTER WITH AUTO-POWERDOWN |
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