参数资料
型号: AD7147WPACPZ-RL
厂商: Analog Devices Inc
文件页数: 36/73页
文件大小: 0K
描述: IC CAP-TO-DGTL CONV PROG 24LFCSP
标准包装: 5,000
系列: CapTouch™
类型: 电容数字转换器
分辨率(位): 16 b
采样率(每秒): 250k
数据接口: 串行,SPI?
电压电源: 单电源
电源电压: 2.6 V ~ 3.6 V
工作温度: -40°C ~ 85°C
安装类型: 表面贴装
封装/外壳: 24-VFQFN 裸露焊盘,CSP
供应商设备封装: 24-LFCSP-VQ(4x4)
包装: 带卷 (TR)
AD7147
Data Sheet
Rev. D | Page 40 of 72
POWER-UP SEQUENCE
To power up the AD7147, use the following sequence when
initially developing the AD7147 and microprocessor serial
interface:
1.
Turn on the power supplies to the AD7147.
2.
Write to the Bank 2 registers at Address 0x080 through
Address 0x0DF. These registers are contiguous; therefore, a
sequential register write sequence can be applied.
Note that the Bank 2 register values are unique for each
application. Register values come from characterization of
the sensor in the application.
3.
Write to the Bank 1 registers at Address 0x000 through
Address 0x007, outlined as follows. These registers are
contiguous; therefore, a sequential register write sequence
can be applied (see Figure 50 and Figure 55).
Caution: At this time, Address 0x001 must remain set to a
default value of 0x0000 during this contiguous write
operation.
Register values:
Address 0x000 = 0x82B2
Address 0x001 = 0x000
Address 0x002 = 0x3230 (depends on number of
conversion stages used)
Address 0x003 = 0x419
Address 0x004 = 832
Address 0x005 = interrupt enable register (depends on
required interrupt behavior)
Address 0x006 = interrupt enable register (depends on
required interrupt behavior)
Address 0x007 = interrupt enable register (depends on
required interrupt behavior)
4.
Write to the Bank 1 register, Address 0x001 = 0x0FFF
(depends on number of conversion stages used).
5.
Read back the corresponding interrupt status register at
Address 0x008, Address 0x009, or Address 0x00A. This is
determined by the interrupt output configuration, as
explained in the Interrupt Output section.
Note that the specific registers required to be read back
depend on each application. For buttons, the interrupt
status registers are read back while other sensors read data
back from the AD7147 according to the slider or wheel
algorithm’s requirements. Analog Devices can provide this
information after the user develops the sensor board.
6.
Repeat Step 5 every time INT is asserted.
FIRST CONVERSION SEQUENCE
CONVERSION
STAGE
0
CONVERSION STAGES DISABLED
1
2
3
4
5
678
9
10 11
0
1
2
9
10 11
012
910 11
0
1
SECOND CONVERSION
SEQUENCE
THIRD CONVERSION
SEQUENCE
POWER
HOST
SERIAL
INTERFACE
AD7147 INT
0
66
63-
056
Figure 59. Recommended Start-Up Sequence
相关PDF资料
PDF描述
D38999/24FE8HN CONN RCPT 8POS JAM NUT W/PINS
AD7142ACPZ-REEL IC CAP-TO-DGTL CONV PROG 32LFCSP
V375B15M300B2 CONVERTER MOD DC/DC 15V 300W
MS27473T18F35SD CONN PLUG 66POS STRAIGHT W/SCKT
V375B15M300B CONVERTER MOD DC/DC 15V 300W
相关代理商/技术参数
参数描述
AD7148 制造商:AD 制造商全称:Analog Devices 功能描述:Programmable Touch Controller for Single Electrode Capacitance Sensors
AD7148ACPZ-1500RL7 功能描述:IC CAP-TO-DGTL CONV PROG 16LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:- 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率(位):- 评估套件:* 数据接口:- 数据速率/采样率 (SPS,BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP(0.173",4.40mm 宽) 供应商设备封装:16-TSSOP 包装:带卷 (TR)
AD7148ACPZ-1REEL 功能描述:IC CAP-TO-DGTL CONV PROG 16LFCSP RoHS:是 类别:集成电路 (IC) >> 数据采集 - 触摸屏控制器 系列:- 标准包装:96 系列:- 类型:- 触摸面板接口:- 输入数/键:- 分辨率(位):- 评估套件:* 数据接口:- 数据速率/采样率 (SPS,BPS):- 电压基准:- 电源电压:- 电流 - 电源:- 工作温度:- 安装类型:表面贴装 封装/外壳:16-TSSOP(0.173",4.40mm 宽) 供应商设备封装:16-TSSOP 包装:带卷 (TR)
AD7150 制造商:AD 制造商全称:Analog Devices 功能描述:Ultra Low Power, 2 Channel, Capacitance Converter for Proximity Sensing
AD7150BRMZ 功能描述:IC CAP CONV 2CH ULT LP 10MSOP RoHS:是 类别:集成电路 (IC) >> 接口 - 传感器和探测器接口 系列:- 其它有关文件:Automotive Product Guide 产品培训模块:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 标准包装:74 系列:- 类型:触控式传感器 输入类型:数字 输出类型:数字 接口:JTAG,串行 电流 - 电源:100µA 安装类型:表面贴装 封装/外壳:20-TSSOP(0.173",4.40mm 宽) 供应商设备封装:20-TSSOP 包装:管件