参数资料
型号: AD7873ARUZ-REEL7
厂商: Analog Devices Inc
文件页数: 5/29页
文件大小: 0K
描述: IC ADC 12BIT TOUCHSCREEN 16TSSOP
标准包装: 1,000
类型: 电阻
触摸面板接口: 4 线
输入数/键: 1 TSC
分辨率(位): 12 b
评估套件: 可供
数据接口: 串行
数据速率/采样率 (SPS,BPS): 125k
电压基准: 外部,内部
电源电压: 2.2 V ~ 5.25 V
工作温度: -40°C ~ 85°C
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)
AD7873
Data Sheet
Rev. F | Page 12 of 28
Figure 23. AC PSRR vs. Supply Ripple Frequency
Figure 23 shows the power supply rejection ratio vs. VDD supply
frequency for the AD7873. The power supply rejection ratio is
defined as the ratio of the power in the ADC output at full-scale
frequency, f, to the power of a 100 mV sine wave applied to the
ADC VCC supply of frequency fS
PSSR (dB) = 10log(Pf/Pfs)
where:
Pf is power at frequency, f, in ADC output.
Pfs is power at frequency, fs, coupled onto the ADC VCC supply.
Here a 100 mV p-p sine wave is coupled onto the VCC supply.
Decoupling capacitors of 10 F and 0.1 F were used on the supply.
–120
–100
–80
–60
–40
–20
0
P
S
RR
(
d
B)
0
10
20
30
40
50
60
70
80
90
100
VCC RIPPLE FREQUENCY (kHz)
VCC = 3V
100mV p-p SINE WAVE ON +VCC
VREF = 2.5V EXT REFERENCE
fSAMPLE = 125kHz, fIN = 20kHz
02164-
023
相关PDF资料
PDF描述
CB3106A-16-60S CONN PLUG 2POS STRAIGHT W/SCKT
D38999/26FF28SN CONN PLUG 28POS STRAIGHT W/SCKT
AD7873BRQZ-REEL IC ADC 12BIT TOUCHSCREEN 16QSOP
CS3108A-18-73S CONN PLUG 7POS RT ANG W/SCKT
MS3106A18-15P CONN PLUG 4POS STRAIGHT W/PINS
相关代理商/技术参数
参数描述
AD7873BCP 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER 制造商:Rochester Electronics LLC 功能描述:2.7V 12-BIT TOUCH SCREEN DIGITIZER I.C. - Bulk
AD7873BCP-REEL 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER
AD7873BCP-REEL7 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER 制造商:Analog Devices 功能描述:2.7V 12-BIT TOUCH SCREEN DIGITIZER I.C. - Tape and Reel
AD7873BCPZ 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER
AD7873BRQ 制造商:Analog Devices 功能描述:TOUCH SCREEN DIGITIZER