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參數(shù)資料
| 型號： | ADS1252 |
| 英文描述： | 24-Bit, 40kHz ANALOG-TO-DIGITAL CONVERTER |
| 中文描述： | 24位40kHz的模擬到數(shù)字轉(zhuǎn)換器 |
| 文件頁數(shù)： | 12/14頁 |
| 文件大?。?/td> | 131K |
| 代理商： | ADS1252 |
12
ADS1252
A simple two-wire interface is shown in Figure 15. Essentially
P3.2 (INT
0
) generates an internal interrupt when DOUT/
DRDY pulses LOW. The user firmware in the 8xC51 vectors
to the interupt handler and shifts the data in using P3.1 as
SCLK and P3.2 as data in. The P1.0 output from 8xC51 is a
free-running clock.
The data must be clocked out before the ADS1252 enters
DRDY mode to ensure reception of valid data, as described
in the DOUT/DRDY section of this data sheet.
ISOLATION
The serial interface of the ADS1252 provides for simple
isolation methods. An example of an isolated three-wire
interface is shown in Figure 16. The ISO150 is used to
transmit the digital clocks over the isolation barrier. In
addition, the digital output of the ADS1252 can, in some
cases, drive opto-isolators directly.
FIGURE 15. Two-Wire Interface to an 8xC51.
+V
IN
–V
IN
+V
DD
CLK
V
REF
GND
SCLK
DOUT/DRDY
V
Circuit
DV
DD
8xC51
ADS1252
P1.0/T2
P1.1
P1.2
P1.3
P1.4
P1.5
P1.6
P1.7
RST
P3.0
P3.1
P3.2 (INT0)
P3.3
P3.4
P3.5
P3.6
P3.7
XTAL2
XTAL1
V
SS
V
CC
P0.0
P0.1
P0.2
P0.3
P0.4
P0.5
P0.6
P0.7
EA
ALE
PSEN
P2.7
P2.6
P2.5
P2.4
P2.3
P2.2
P2.1
P2.0
V
S
DGND
C1
XTAL
C2
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| ADS1252U | 24-Bit, 40kHz ANALOG-TO-DIGITAL CONVERTER |
| ADS1252K5 | 24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER |
| ADS1254 | 24-Bit, 20kHz, Low Power ANALOG-TO-DIGITAL CONVERTER |
| ADS1254E | 24-Bit, 20kHz, Low Power ANALOG-TO-DIGITAL CONVERTER |
| ADS1255IDB | Very Low Noise, 24-Bit Analog-to-Digital Converter |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| ADS1252EVM | 功能描述:數(shù)據(jù)轉(zhuǎn)換 IC 開發(fā)工具 ADS1252 Eval Mod RoHS:否 制造商:Texas Instruments 產(chǎn)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 |
| ADS1252K5 | 制造商:TI 制造商全稱:Texas Instruments 功能描述:24-Bit, 20kHz, Low-Power ANALOG-TO-DIGITAL CONVERTER |
| ADS1252U | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ResolutionPlus 24-Bit 40kHz 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 |
| ADS1252U | 制造商:Texas Instruments 功能描述:IC 24BIT ADC 41.7KSPS SMD |
| ADS1252U/2K5 | 功能描述:模數(shù)轉(zhuǎn)換器 - ADC ResolutionPlus 24-Bit 40kHz 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 |
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