参数资料
| 型号： | AD7291BCPZ-RL7 |
| 厂商： | Analog Devices Inc |
| 文件页数： | 8/29页 |
| 文件大小： | 0K |
| 描述： | IC ADC I2C/SRL 22.22K 20LFCSP |
| 标准包装： | 1,500 |
| 位数： | 12 |
| 采样率（每秒）： | 22.22k |
| 数据接口： | I²C，串行 |
| 转换器数目： | 1 |
| 功率耗散（最大）： | 12.6mW |
| 电压电源： | 单电源 |
| 工作温度： | -40°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 20-WFQFN 裸露焊盘，CSP |
| 供应商设备封装： | 20-LFCSP-WQ（4x4） |
| 包装： | 带卷 (TR) |
| 输入数目和类型： | 8 个单端，单极 |
| 配用： | EVAL-AD7291SDZ-ND - BOARD EVAL FOR AD7291 |
第1页第2页第3页第4页第5页第6页第7页当前第8页第9页第10页第11页第12页第13页第14页第15页第16页第17页第18页第19页第20页第21页第22页第23页第24页第25页第26页第27页第28页第29页
Data Sheet
AD7291
Rev. B | Page 15 of 28
INTERNAL REGISTER STRUCTURE
The AD7291 contains 34 internal registers (see Figure 23) that
are used to store conversion results, high and low conversion
limits, and information to configure and control the device.
There are 33 data registers and one address pointer register.
Each data register has an address that the address pointer
register points to when communicating with it. Table 9 details
which registers are read, write, or read/write.
ADDRESS POINTER REGISTER
The address pointer register is the register to which the first
data byte of every write operation is written automatically;
therefore, this register does not have and does not require an
address. The address pointer register is an 8-bit register in
which the six LSBs are used as pointer bits to store an address
that points to one of the AD7291’s data registers. The first byte
following each write address is to the address pointer register,
containing the address of one of the data registers. The six LSBs
select the data register to which subsequent data bytes are
written. Only the six LSBs of this register are used to select a
data register. During power-up, the address pointer register
contains all 0s, pointing to the command register.
Table 8. Address Pointer Register
D1
D0
P5
P4
P3
P2
P1
P0
0
Register select
SDA
SCL
DAT
A
COMMAND
REGISTER
TSENSE CONV
RESULT REGISTER
TSENSE AVG
RESULT REGISTER
CH0 DATAHIGH
REGISTER
CH1 DATALOW
REGISTER
CH0 HYSTERESIS
REGISTER
CH1 DATAHIGH
REGISTER
CH1 HYSTERESIS
REGISTER
CH0 DATALOW
REGISTER
CH7 DATAHIGH
REGISTER
CH7 DATALOW
REGISTER
CH7 HYSTERESIS
REGISTER
TSENSE HYSTERESIS
REGISTER
TSENSE DATAHIGH
REGISTER
TSENSE DATALOW
REGISTER
ALERT STATUS
REGISTER A
ALERT STATUS
REGISTER B
08
71
1-
01
5
VOLTAGE CONV
RESULT REGISTER
SERIAL BUS INTERFACE
ADDRESS
POINTER
REGISTER
Figure 23. AD7291 Register Structure
相关PDF资料 |
PDF描述 |
|---|---|
| AD7298-1BCPZ-RL | IC ADC 10BIT SPI/SRL 8CH 20LFCSP |
| AD7298BCPZ-RL7 | IC ADC 10BIT SPI/SRL 8CH 20LFCSP |
| AD7302BRUZ-REEL7 | IC DAC 8BIT DUAL R-R 20-TSSOP |
| AD7303BRM | IC DAC 8BIT DUAL R-R 8-MSOP |
| AD7305BRU | IC DAC 8BIT QUAD R-R 20-TSSOP |
相关代理商/技术参数 |
参数描述 |
|---|---|
| AD7291TCPZ-EP | 功能描述:CH 12 BIT SAR WT INTERNAL TEMP S 制造商:analog devices inc. 系列:- 包装:托盘 零件状态:在售 位数:12 采样率（每秒）:22.22k 输入数:8 输入类型:单端 数据接口:I2C 配置:MUX-S/H-ADC 无线电 - S/H:ADC:1:1 A/D 转换器数:1 架构:SAR 参考类型:外部， 内部 电压 - 电源，模拟:2.8 V ~ 3.6 V 电压 - 电源，数字:2.8 V ~ 3.6 V 特性:温度传感器 工作温度:-55°C ~ 125°C（TA） 封装/外壳:20-WFQFN 裸露焊盘，CSP 供应商器件封装:20-LFCSP（4x4） 标准包装:1 |
| AD7291TCPZ-EP-RL7 | 功能描述:8 CH 12 BIT SAR WT INTERNAL TEMP 制造商:analog devices inc. 系列:- 包装:带卷（TR） 零件状态:在售 位数:12 采样率（每秒）:22.22k 输入数:8 输入类型:单端 数据接口:I2C 配置:MUX-S/H-ADC 无线电 - S/H:ADC:1:1 A/D 转换器数:1 架构:SAR 参考类型:外部， 内部 电压 - 电源，模拟:2.8 V ~ 3.6 V 电压 - 电源，数字:2.8 V ~ 3.6 V 特性:温度传感器 工作温度:-55°C ~ 125°C（TA） 封装/外壳:20-WFQFN 裸露焊盘，CSP 供应商器件封装:20-LFCSP（4x4） 标准包装: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 |
| AD7293BCPZ | 功能描述:12-BIT POWER AMPLIFIER CURRENT C 制造商:analog devices inc. 系列:* 零件状态:有效 标准包装:1 |
发布紧急采购，3分钟左右您将得到回复。