參數(shù)資料
型號(hào)： TLV1578CDARG4
廠商： TEXAS INSTRUMENTS INC
元件分類(lèi)： ADC
英文描述： 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO32
封裝： GREEN, PLASTIC, TSSOP-32
文件頁(yè)數(shù)： 28/33頁(yè)
文件大?。?/td> 627K
代理商： TLV1578CDARG4
TLV1571, TLV1578
2.7 V TO 5.5 V, 1-/8-CHANNEL, 10-BIT,
PARALLEL ANALOG-TO-DIGITAL CONVERTERS
SLAS170D –MARCH 1999 – REVISED JULY 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, fs
The TLV1571/ TLV1578 requires 16 CLKs for each conversion, (assuming the read cycle takes 1 CLK). The
equivalent maximum sampling frequency achievable with a given CLK frequency is:
fs(max) = (1/17) fCLK
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.
相關(guān)PDF資料
PDF描述
TLV1571IDW 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24
TLV1571CPW 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24
TLV1571IDWR 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24
TLV1571CDWR 1-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO24
TLV1578IDAR 8-CH 10-BIT SUCCESSIVE APPROXIMATION ADC, PARALLEL ACCESS, PDSO32
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
TLV1578IDA 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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLV1578IDAG4 功能描述:模數(shù)轉(zhuǎn)換器 - ADC 8-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(lèi)型:Differential 信噪比:107 dB 接口類(lèi)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
TLV1578IDAR 制造商:Rochester Electronics LLC 功能描述:- Bulk
TLV1701AIDBVR 功能描述:Comparator General Purpose Open Collector SOT-23-5 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類(lèi)型:通用 元件數(shù):1 輸出類(lèi)型:開(kāi)路集電極 電壓 - 電源，單/雙（±）:2.2 V ~ 36 V，±1.1 V ~ 18 V 電壓 - 輸入失調(diào)（最大值）:3.5mV 電流 - 輸入偏置（最大值）:15nA 電流 - 輸出（典型值）:20mA 電流 - 靜態(tài)（最大值）:75μA CMRR，PSRR（典型值）:- 傳播延遲（最大值）:560ns 滯后:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74A，SOT-753 安裝類(lèi)型:表面貼裝 供應(yīng)商器件封裝:SOT-23-5 標(biāo)準(zhǔn)包裝:1
TLV1701AIDBVT 功能描述:Comparator General Purpose Open Collector SOT-23-5 制造商:texas instruments 系列:- 包裝:剪切帶（CT） 零件狀態(tài):有效 類(lèi)型:通用 元件數(shù):1 輸出類(lèi)型:開(kāi)路集電極 電壓 - 電源，單/雙（±）:2.2 V ~ 36 V，±1.1 V ~ 18 V 電壓 - 輸入失調(diào)（最大值）:3.5mV 電流 - 輸入偏置（最大值）:15nA 電流 - 輸出（典型值）:20mA 電流 - 靜態(tài)（最大值）:75μA CMRR，PSRR（典型值）:- 傳播延遲（最大值）:560ns 滯后:- 工作溫度:-40°C ~ 125°C 封裝/外殼:SC-74A，SOT-753 安裝類(lèi)型:表面貼裝 供應(yīng)商器件封裝:SOT-23-5 標(biāo)準(zhǔn)包裝:1
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