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參數資料
型號: AD7851ARS
廠商: ANALOG DEVICES INC
元件分類: ADC
英文描述: 14-Bit 333 kSPS Serial A/D Converter
中文描述: 1-CH 14-BIT SUCCESSIVE APPROXIMATION ADC, SERIAL ACCESS, PDSO24
封裝: MO-15AG, SSOP-24
文件頁數: 29/36頁
文件大小: 435K
代理商: AD7851ARS
–29–
REV. A
AD7851
Interface Mode 1 Configuration
Figure 42 shows the flowchart for configuring the part in Inter-
face Mode 1. T his mode of operation can only be enabled by
writing to the control register and setting the 2/
3
MODE bit.
Reading and writing cannot take place simultaneously in this
mode as the DIN pin is used for both reading and writing.
SERIAL
INTERFACE
MODE
POWER-ON, APPLY CLKIN SIGNAL,
WAIT 150ms FOR AUTOMATIC CALIBRATION
NO
YES
WAIT FOR BUSY SIGNAL TO GO
LOW OR WAIT FOR BUSY BIT = 0
READ
DATA
DURING
CONVERSION
APPLY
SYNC
(IF REQUIRED), SCLK, READ
CURRENT CONVERSION RESULT ON DIN PIN
1
INITIATE
CONVERSION
IN
SOFTWARE
WAIT APPROXIMATLY 200ns
AFTER
CONVST
RISING EDGE
OR AFTER END OF CONTROL
REGISTER WRITE
APPLY
SYNC
(IF REQUIRED),
SCLK, READ PREVIOUS CONVERSION
RESULT ON DIN PIN
NO
YES
APPLY
SYNC
(IF REQUIRED),
SCLK, WRITE TO CONTROL REGISTER
SETTING THE TWO-WIRE MODE
AND CONVST BIT TO 1
START
APPLY
SYNC
(IF REQUIRED),
SCLK, WRITE TO CONTROL REGISTER
SETTING THE TWO-WIRE MODE
PULSE
CONVST
PIN
Figure 42. Flowchart for Setting Up, Reading, and Writing
in Interface Mode 1
Interface Modes 4 and 5 Configuration
Figure 43 shows the flowchart for configuring the AD7851 in
Interface Modes 4 and 5, the self-clocking modes. In this case it
is not recommended to use the software conversion start option.
T he read and write operations always occur simultaneously and
during conversion.
POWER-ON, APPLY CLKIN SIGNAL,
WAIT 150ms FOR AUTOMATIC CALIBRATION
SYNC
AUTOMATICALLY GOES
LOW AFTER
CONVST
RISING EDGE
PULSE
CONVST
PIN
SCLK AUTOMATICALLY ACTIVE, READ CURRENT
CONVERSION RESULT ON DOUT PIN, WRITE
TO CONTROL REGISTER ON DIN PIN
4, 5
START
SERIAL
INTERFACE
MODE
Figure 43. Flowchart for Setting Up, Reading, and Writing
in Interface Modes 4 and 5
相關PDF資料
PDF描述
AD7851KN 14-Bit 333 kSPS Serial A/D Converter
AD7851KR 14-Bit 333 kSPS Serial A/D Converter
AD7853LARS 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs
AD7853L* Single Supply V.35 Transceiver; Package: SO; No of Pins: 28; Temperature Range: -40°C to +85°C
AD7853L 3 V to 5 V Single Supply, 200 kSPS 12-Bit Sampling ADCs(單電源,200kSPS 12位采樣A/D轉換器)
相關代理商/技術參數
參數描述
AD7851ARS-REEL 制造商:Analog Devices 功能描述:ADC Single SAR 333ksps 14-bit Serial 24-Pin SSOP T/R
AD7851ARSZ 功能描述:IC ADC 14BIT SRL 333KSPS 24SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
AD7851ARSZ-REEL 功能描述:IC ADC 14BIT SRL 333KSPS 24SSOP RoHS:是 類別:集成電路 (IC) >> 數據采集 - 模數轉換器 系列:- 標準包裝:1,000 系列:- 位數:12 采樣率(每秒):300k 數據接口:并聯 轉換器數目:1 功率耗散(最大):75mW 電壓電源:單電源 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:24-SOIC(0.295",7.50mm 寬) 供應商設備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數目和類型:1 個單端,單極;1 個單端,雙極
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AD7851ARZ3 制造商:AD 制造商全稱:Analog Devices 功能描述:14-Bit 333 kSPS Serial A/D Converter
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