參數(shù)資料
型號(hào)： AD7291BCPZ
廠商： Analog Devices Inc
文件頁(yè)數(shù)： 16/29頁(yè)
文件大?。?/td> 0K
描述： IC ADC 12BIT SAR 8CH 20-LFCSP
標(biāo)準(zhǔn)包裝： 1
位數(shù)： 12
采樣率（每秒）： 22.22k
數(shù)據(jù)接口： I²C，串行
轉(zhuǎn)換器數(shù)目： 1
功率耗散（最大）： 12.6mW
電壓電源： 單電源
工作溫度： -40°C ~ 125°C
安裝類(lèi)型： 表面貼裝
封裝/外殼： 20-WFQFN 裸露焊盤(pán)，CSP
供應(yīng)商設(shè)備封裝： 20-LFCSP-WQ（4x4）
包裝： 托盤(pán)
輸入數(shù)目和類(lèi)型： 8 個(gè)單端，單極
配用： EVAL-AD7291SDZ-ND - BOARD EVAL FOR AD7291
AD7291
Data Sheet
Rev. B | Page 22 of 28
WRITING TO THE AD7291
WRITING TWO BYTES OF DATA TO A 16-BIT
REGISTER
All registers on the AD7921 are 16-bit registers; therefore, two
bytes of data are required to write a value to any one of these
registers. Writing two bytes of data to a register consists of the
following sequence (see Figure 25):
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address followed by the
write bit (low).
3.
The addressed slave device asserts an acknowledge on SDA.
4.
The master sends a register address. The slave asserts an
acknowledge on SDA.
5.
The master sends the first data byte (most significant).
6.
The slave asserts an acknowledge on SDA.
7.
The master sends the second data byte (least significant).
8.
The slave asserts an acknowledge on SDA.
9.
The master asserts a stop condition on SDA to end the
transaction.
WRITING TO MULTIPLE REGISTERS
Writing to multiple address registers consists of the following
steps (see Figure 26):
1.
The master device asserts a start condition on SDA.
2.
The master sends the 7-bit slave address followed by
the write bit (low).
3.
The addressed slave device (AD7291) asserts an
acknowledge on SDA.
4.
The master sends a register address, for example, the CH1
DATAHIGH register address.
5.
The slave (AD7291) asserts an acknowledge on SDA.
6.
The master sends the first data byte.
7.
The slave (AD7291) asserts an acknowledge on SDA.
8.
The master sends the second data byte.
9.
The slave (AD7291) asserts an acknowledge on SDA.
10. The master sends a second register address, for example,
the command register.
11. The slave (AD7291) asserts an acknowledge on SDA.
12. The master sends the first data byte.
13. The slave (AD7291) asserts an acknowledge on SDA.
14. The master sends the second data byte.
15. The slave (AD7291) asserts an acknowledge on SDA.
16. The master asserts a stop condition on SDA to end the
transaction.
The previous example details writing to two registers only (the
CH1 DATAHIGH register address and the command register).
However, the AD7291 can read from multiple registers in one
write operation as shown in Figure 26.
0
87
11
-0
59
S
SLAVE ADDRESS
0
SA
REG POINTER
SA
DATA[15:8]
SA
P
DATA[7:0]
SA
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
S = START CONDITION
SR = REPEATED START
P = STOP CONDITION
SA = SLAVE ACKNOWLEDGE
A = NOT ACKNOWLEDGE
Figure 25. Writing Two Bytes of Data to a 16-Bit Register
08
71
1-
0
19
S
...
0
SA
SLAVE ADDRESS
POINT TO CH1 DATAHIGH REG (0x04)
P
SA
DATA[7:0]
DATA[15:8]
POINT TO COMMAND REG (0x00)
DATA[15:8]
SA
DATA[7:0]
FROM MASTER TO SLAVE
FROM SLAVE TO MASTER
S = START CONDITION
SR = REPEATED START
P = STOP CONDITION
SA = SLAVE ACKNOWLEDGE
A = NOT ACKNOWLEDGE
Figure 26. Writing to Multiple Registers
相關(guān)PDF資料
PDF描述
VI-26R-MY-B1 CONVERTER MOD DC/DC 7.5V 50W
1676850-1 CAP CER 0.47PF 25V 5% NP0 0402
VI-26L-MY-B1 CONVERTER MOD DC/DC 28V 50W
VE-JWD-MY-F4 CONVERTER MOD DC/DC 85V 50W
VI-24Y-MX-B1 CONVERTER MOD DC/DC 3.3V 49.5W
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
AD7291BCPZ-RL7 功能描述:IC ADC I2C/SRL 22.22K 20LFCSP RoHS:是 類(lèi)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):16 采樣率（每秒）:45k 數(shù)據(jù)接口:串行 轉(zhuǎn)換器數(shù)目:2 功率耗散（最大）:315mW 電壓電源:模擬和數(shù)字 工作溫度:0°C ~ 70°C 安裝類(lèi)型:表面貼裝 封裝/外殼:28-SOIC（0.295"，7.50mm 寬） 供應(yīng)商設(shè)備封裝:28-SOIC W 包裝:帶卷 (TR) 輸入數(shù)目和類(lèi)型:2 個(gè)單端，單極
AD7291TCPZ-EP 功能描述:CH 12 BIT SAR WT INTERNAL TEMP S 制造商:analog devices inc. 系列:- 包裝:托盤(pán) 零件狀態(tài):在售 位數(shù):12 采樣率（每秒）:22.22k 輸入數(shù):8 輸入類(lèi)型:單端 數(shù)據(jù)接口:I2C 配置:MUX-S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):SAR 參考類(lèi)型:外部， 內(nèi)部 電壓 - 電源，模擬:2.8 V ~ 3.6 V 電壓 - 電源，數(shù)字:2.8 V ~ 3.6 V 特性:溫度傳感器 工作溫度:-55°C ~ 125°C（TA） 封裝/外殼:20-WFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:20-LFCSP（4x4） 標(biāo)準(zhǔn)包裝:1
AD7291TCPZ-EP-RL7 功能描述:8 CH 12 BIT SAR WT INTERNAL TEMP 制造商:analog devices inc. 系列:- 包裝:帶卷（TR） 零件狀態(tài):在售 位數(shù):12 采樣率（每秒）:22.22k 輸入數(shù):8 輸入類(lèi)型:單端 數(shù)據(jù)接口:I2C 配置:MUX-S/H-ADC 無(wú)線電 - S/H:ADC:1:1 A/D 轉(zhuǎn)換器數(shù):1 架構(gòu):SAR 參考類(lèi)型:外部， 內(nèi)部 電壓 - 電源，模擬:2.8 V ~ 3.6 V 電壓 - 電源，數(shù)字:2.8 V ~ 3.6 V 特性:溫度傳感器 工作溫度:-55°C ~ 125°C（TA） 封裝/外殼:20-WFQFN 裸露焊盤(pán)，CSP 供應(yīng)商器件封裝:20-LFCSP（4x4） 標(biāo)準(zhǔn)包裝:1,500
AD7292BCPZ 制造商:Analog Devices 功能描述:Monitor and Control System 36-Pin LFCSP EP Tray 制造商:Analog Devices 功能描述:12-BIT,MULTI-CHANNEL, ADC,DAC WT TEMP IC - Trays 制造商:Analog Devices 功能描述:IC ADC 10BIT SPI/SRL 36-LFCSP 制造商:Analog Devices 功能描述:ADC DAC TEMP SENSOR GPIO 3 制造商:Analog Devices 功能描述:ADC, DAC, TEMP SENSOR, GPIO, 36LFCSP 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 12-Bit Multi-Channel ADC DAC wt Temp IC 制造商:Analog Devices 功能描述:ANALOGUE MONITORING & CONTROL CIRCUIT, LFCSP-36; IC Function:Analogue Monitoring and Control Circuit; Supply Voltage Min:1.8V; Supply Voltage Max:5.25V; Operating Temperature Min:-40C; Operating Temperature Max:125C; No. of Pins:36;RoHS Compliant: Yes
AD7292BCPZ-RL 制造商:Analog Devices 功能描述:Monitor and Control System 36-Pin LFCSP EP T/R 制造商:Analog Devices 功能描述:12-BIT,MULTI-CHANNEL, ADC,DAC WT TEMP IC - Tape and Reel 制造商:Analog Devices 功能描述:IC ADC 10BIT SPI/SRL 36LFCSP 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 12-Bit Multi-Channel ADC DAC wt Temp IC 制造商:Analog Devices Inc. 功能描述:Analog to Digital Converters - ADC 10B Monitor & Cntrl System w/ Temp Sensr
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫(xiě)一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。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(gòu)。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(gòu)

我的聯(lián)系方式

*
*
*