参数资料
型号: AD7142ACPZ-1REEL
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 32LFCSP
标准包装: 1
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
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: 32-VFQFN 裸露焊盘,CSP
供应商设备封装: 32-LFCSP-VQ
包装: 标准包装
产品目录页面: 781 (CN2011-ZH PDF)
其它名称: AD7142ACPZ-1REELDKR
AD7142
Rev. A | Page 40 of 72
DETAILED REGISTER DESCRIPTIONS
BANK 1 REGISTERS
All addresses and default values are expressed in hexadecimal.
Table 19. PWR_CONTROL Register
Address
Data Bit
Default Value
Type
Name
Description
0x000
[1:0]
0
R/W
POWER_MODE
Operating modes
00 = full power mode (normal operation, CDC
conversions approximately every 36 ms)
01 = full shutdown mode (no CDC conversions)
10 = low power mode (automatic wake up operation)
11 = full shutdown mode (no CDC conversions)
[3:2]
0
LP_CONV_DELAY
Low power mode conversion delay
00 = 200 ms
01 = 400 ms
10 = 600 ms
11 = 800 ms
[7:4]
0
SEQUENCE_STAGE_NUM
Number of stages in sequence (N + 1)
0000 = 1 conversion stage in sequence
0001 = 2 conversion stages in sequence
Maximum value = 1011 = 12 conversion stages per
sequence
[9:8]
0
DECIMATION
ADC decimation factor
00 = decimate by 256
01 = decimate by 128
10 = do not use this setting
11 = do not use this setting
[10]
0
SW_RESET
Software reset control (self-clearing)
1 = resets all registers to default values
[11]
0
INT_POL
Interrupt polarity control
0 = active low
1 = active high
[12]
0
EXCITATION_SOURCE
Excitation source control for Pin 15
0 = enable output
1 = disable output
[13]
0
SRC
Excitation source control for Pin 16
0 = enable output
1 = disable output
[15:14]
0
CDC_BIAS
CDC bias current control
00 = normal operation
01 = normal operation + 20%
10 = normal operation + 35%
11 = normal operation + 50%
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