数据搜索系统,热门电子元器件搜索
Selected language     Chinese  ▼
部分名称
         详细搜索


ADC0808CCN Datasheet(数据表) 8 Page - National Semiconductor (TI)

[Old version datasheet] Texas Instruments acquired National semiconductor.
部件型号  ADC0808CCN
说明  8-Bit uP Compatible A/D Converters with 8-Channel Multiplexer
下载  14 Pages
Scroll/Zoom Zoom In 100% Zoom Out
制造商  NSC [National Semiconductor (TI)]
网页  http://www.national.com
标志 

 8 page
background image
Typical Performance Characteristics
TRI-STATE Test Circuits and Timing Diagrams
Applications Information
OPERATION
1.0 RATIOMETRIC CONVERSION
The ADC0808, ADC0809 is designed as a complete Data
Acquisition System (DAS) for ratiometric conversion sys-
tems. In ratiometric systems, the physical variable being
measured is expressed as a percentage of full-scale which is
not necessarily related to an absolute standard. The voltage
input to the ADC0808 is expressed by the equation
(1)
V
IN=Input voltage into the ADC0808
V
fs=Full-scale voltage
V
Z=Zero voltage
D
X=Data point being measured
D
MAX=Maximum data limit
D
MIN=Minimum data limit
A good example of a ratiometric transducer is a potentiom-
eter used as a position sensor. The position of the wiper is di-
rectly proportional to the output voltage which is a ratio of the
full-scale voltage across it. Since the data is represented as
a proportion of full-scale, reference requirements are greatly
reduced, eliminating a large source of error and cost for
many applications. A major advantage of the ADC0808,
ADC0809 is that the input voltage range is equal to the sup-
ply range so the transducers can be connected directly
across the supply and their outputs connected directly into
the multiplexer inputs, (
Figure 9).
Ratiometric transducers such as potentiometers, strain
gauges, thermistor bridges, pressure transducers, etc., are
DS005672-16
FIGURE 6. Comparator I
IN vs VIN
(V
CC=VREF=5V)
DS005672-17
FIGURE 7. Multiplexer R
ON vs VIN
(V
CC=VREF=5V)
t
1H,tH1
DS005672-18
t
1H,CL = 10 pF
DS005672-19
t
H1,CL = 50 pF
DS005672-20
t
0H,tH0
DS005672-21
t
0H,CL = 10 pF
DS005672-22
t
H0,CL = 50 pF
DS005672-23
FIGURE 8.
www.national.com
8




HTML 页

1  2  3  4  5  6  7  8  9  10  11  12  13  14 


数据表 下载



相关电子零件

部件型号部件说明Html View制造商
ADC0808_078-Bit uP Compatible A/D Converters with 8-Channel Multiplexer Coming SoonNational Semiconductor (TI)
ADC08168-Bit uP Compatible A/D Converters with 16-Channel Multiplexer 1 2 3 4 5 MoreNational Semiconductor (TI)
ADC0816_078-Bit μP Compatible A/D Converters with 16-Channel Multiplexer Coming SoonNational Semiconductor (TI)
ML1450408-Bit A/D Converters With Serial Interface 1 2 3 4 5 MoreLANSDALE Semiconductor Inc.
PIC16F872_0628-Pin 8-Bit CMOS Flash Microcontroller with 10-Bit A/D 1 2 3 4 5 MoreMicrochip Technology
ST62T80B_078-BIT OTP/EPROM MCU WITH LCD DRIVER EEPROM AND A/D CONVERTER 1 2 3 4 5 MoreSTMicroelectronics
ADC08060_088-Bit 20 MSPS to 60 MSPS 1.3 mW/MSPS A/D Converter with Internal Sample-and-Hold Coming SoonNational Semiconductor (TI)
ADC08B2008-Bit 200 MSPS A/D Converter with Capture Buffer Coming SoonNational Semiconductor (TI)
ADC10731_0610-Bit Plus Sign Serial I/O A/D Converters with Mux Sample/Hold and Reference 1 2 3 4 5 MoreNational Semiconductor (TI)
TLC0831C8-BIT ANALOG-TO-DIGITAL CONVERTERS WITH SERIAL CONTROL 1 2 3 4 5 MoreTexas Instruments

链接网址

ALLDATASHEET是否为您带来帮助?  [ DONATE ]  

关于 Alldatasheet    |   广告服务   |   联系我们   |   隐私政策   |   书签   |   链接交换   |   制造商名单
All Rights Reserved© Alldatasheet.com


Mirror Sites
English : Alldatasheet.com  , Alldatasheet.net  |   Chinese : Alldatasheetcn.com  |   German : Alldatasheetde.com  |   Japanese : Alldatasheet.jp  |   Russian : Alldatasheetru.com
Korean : Alldatasheet.co.kr   |   Spanish : Alldatasheet.es  |   French : Alldatasheet.fr  |   Italian : Alldatasheetit.com  |   Portuguese : Alldatasheetpt.com  |   Polish : Alldatasheet.pl