參數(shù)資料
型號(hào)： AD7731BR-REEL7
廠商： Analog Devices Inc
文件頁數(shù)： 30/44頁
文件大?。?/td> 0K
描述： IC ADC 24BIT SIGMA-DELTA 24-SOIC
標(biāo)準(zhǔn)包裝： 400
位數(shù)： 24
采樣率（每秒）： 6.4k
數(shù)據(jù)接口： DSP，串行，SPI?
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 125mW
電壓電源： 模擬和數(shù)字
工作溫度： -40°C ~ 85°C
安裝類型： 表面貼裝
封裝/外殼： 24-SOIC（0.295"，7.50mm 寬）
供應(yīng)商設(shè)備封裝： 24-SOIC W
包裝： 帶卷 (TR)
輸入數(shù)目和類型： 3 個(gè)差分，單極；3 個(gè)差分，雙極；5 個(gè)偽差分，單極；5 個(gè)偽差分，雙極
配用： EVAL-AD7731EBZ-ND - BOARD EVALUATION FOR AD7731
AD7731
–36–
REV. 0
CONFIGURING THE AD7731
The AD7731 contains twelve on-chip registers which can be accessed via the serial interface. Figure 5 and Figure 6 have outlined a
flowchart for the reading and writing of these registers. Table XIX and Table XX outline sample pseudo-code for some commonly
used routines. The required operating conditions will dictate the values loaded to the Mode and Filter Registers. The values given
here are for example purposes only.
Table XIX. Pseudo-Code for Initiating a Self-Calibration after Power-On/Reset
Write 03 Hex to Serial Port
/* Writes to Communications Register Setting Next Operation as Write to
Filter Register*/
Write 1332 Hex to Serial Port
/* Writes to Filter Register Setting a 1 kHz Output Rate in nonCHOP
Mode*/
Write 02 Hex to Serial Port
/* Writes to Communications Register Setting Next Operation as Write to
Mode Register*/
Write B174 Hex to Serial Port
/* Writes to Mode Register Initiating Internal Full-Scale Calibration for
0 V to +1.28 V Input Range on Channel Pair AIN1/AIN2*/
Wait for
RDY Low
/* Wait for
RDY pin to go low to indicate end of calibration cycle*/
Write 02 Hex to Serial Port
/* Writes to Communications Register Setting Next Operation as Write to
Mode Register*/
Write 9174 Hex to Serial Port
/* Writes to Mode Register Initiating Internal Zero-Scale Calibration for
0 V to +1.28 V Input Range*/
Wait for
RDY Low
/* Wait for
RDY pin to go low to indicate end of calibration cycle*/
/* The part has now completed self-calibration and is in idle mode*/
1This operation is not necessary if the default values of the Filter Register are the values used in the application.
Table XX. Pseudo-Code for Looping AD7731 Through Three Fully-Differential Channels
CHANNEL = 4 Hex
/* Sets a Variable Called CHANNEL*/
CH_LOOP: MODE = 2177 Hex
/* Sets a Variable Called MODE */
MODE = MODE AND CHANNEL
/* Logical AND of Both Variables */
Write 02 Hex to Serial Port
/* Writes to Communications Register Setting Next Operation as Write to
Mode Register*/
Write MODE to Serial Port
/* Writes to Mode Register Setting Continuous Conversion Mode for 0 V
to +1.28 V Input Range on Channel Determined by CHANNEL Variable*/
Wait for
RDY Low
/* Wait for
RDY pin to go low to Indicate Output Update*/
Write 11 Hex to Serial Port
/* Writes to Communications Register Setting Next Operation as Read
From Data Register*/
Read 24-Bit Data From Serial Port
/* Read Conversion Result from AD7731’s Data Register*/
Increment CHANNEL
/* Increments Channel Address*/
If CHANNEL = 7Hex Then Set CHANNEL = 4 Hex
/* Resets Channel Address*/
Loop to CH_LOOP
REV. A
相關(guān)PDF資料
PDF描述
VE-2NF-CU-F3 CONVERTER MOD DC/DC 72V 200W
CXS3106A184S CONN PLUG 4POS STRGHT SKT
MS27472T20F41PB CONN RCPT 41POS WALL MT W/PINS
VE-JWV-MX-S CONVERTER MOD DC/DC 5.8V 75W
VE-23L-MX-F3 CONVERTER MOD DC/DC 28V 75W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7731BRU 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7731BRU-REEL 制造商:Analog Devices 功能描述:ADC Single Delta-Sigma 5Msps 24-bit Serial 24-Pin TSSOP T/R 制造商:Analog Devices 功能描述:ADC SGL DELTA-SIGMA 5MSPS 24BIT SERL 24TSSOP - Tape and Reel
AD7731BRU-REEL7 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP RoHS:否 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
AD7731BRUZ 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1 系列:microPOWER™ 位數(shù):8 采樣率（每秒）:1M 數(shù)據(jù)接口:串行，SPI? 轉(zhuǎn)換器數(shù)目:1 功率耗散（最大）:- 電壓電源:模擬和數(shù)字 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:24-VFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:24-VQFN 裸露焊盤（4x4） 包裝:Digi-Reel® 輸入數(shù)目和類型:8 個(gè)單端，單極 產(chǎn)品目錄頁面:892 (CN2011-ZH PDF) 其它名稱:296-25851-6
AD7731BRUZ-REEL 功能描述:IC ADC 24BIT SIGMA-DELTA 24TSSOP RoHS:是 類別:集成電路 (IC) >> 數(shù)據(jù)采集 - 模數(shù)轉(zhuǎn)換器 系列:- 標(biāo)準(zhǔn)包裝:1,000 系列:- 位數(shù):12 采樣率（每秒）:300k 數(shù)據(jù)接口:并聯(lián) 轉(zhuǎn)換器數(shù)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(yīng)商設(shè)備封裝:24-SOIC 包裝:帶卷 (TR) 輸入數(shù)目和類型:1 個(gè)單端，單極；1 個(gè)單端，雙極
發(fā)布緊急采購，3分鐘左右您將得到回復(fù)。

采購需求

(若只采購一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購

我的聯(lián)系方式

*
*
*