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ADC0809CCV 参数 Datasheet PDF下载

ADC0809CCV图片预览
型号: ADC0809CCV
PDF下载: 下载PDF文件 查看货源
内容描述: レP兼容的8位A / D转换器, 8通道多路复用器 [レP Compatible 8-Bit A/D Converter with 8-Channel Multiplexer]
分类和应用: 转换器复用器
文件页数/大小: 12 页 / 172 K
品牌: MICRO-LINEAR [ MICRO LINEAR CORPORATION ]
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May 1997  
ML2258*  
µP Compatible 8-Bit A/D Converter  
with 8-Channel Multiplexer  
GENERAL DESCRIPTION  
FEATURES  
The ML2258 combines an 8-bit A/D converter, 8-channel  
analog multiplexer, and a microprocessor compatible 8-  
bit parallel interface and control logic in a single  
monolithic device.  
Conversion time  
Total unadjusted error  
No missing codes  
Sample and hold  
6.6µs  
±1/2LSB or ±1LSB  
390ns acquisition  
Easy interface to microprocessors is provided by the  
latched and decoded multiplexer address inputs and  
latched three-state outputs.  
Capable of digitizing a 5V, 50kHz sine wave  
8-input multiplexer  
The device is suitable for a wide range of applications  
from process and machine control to consumer,  
automotive, and telecommunication applications.  
0V to 5V analog input range with single 5V  
power supply  
Operates ratiometrically or with up to 5V  
voltage reference  
The ML2258 is an enhanced, pin-compatible, second  
source for the industry standard ADC0808/ADC0809.The  
ML2258 enhancements are faster conversion time, true  
sample and hold function, superior power supply  
rejection, wider reference range, and a double buffered  
data bus as well as faster digital timing. All parameters  
are guaranteed over temperature with a power supply  
voltage of 5V ±10%.  
No zero-or full-scale adjust required  
Analog input protection  
Low power dissipation  
25mA per input min  
3mA max  
TTL and CMOS compatible digital inputs and outputs  
Standard 28-pin DIP or surface mount PCC  
Superior pin compatible replacement for ADC0808 and  
ADC0809  
* Some Packages Are End Of Life As Of August 1, 2000  
BLOCK DIAGRAM  
START  
CLOCK  
IN0  
A/D WITH  
SAMPLE HOLD  
END OF CONVERSION  
(INTERRUPT)  
CONTROL & TIMING  
IN1  
IN2  
IN3  
8-CHANNEL  
MULTIPLEXER  
S.A.R.  
IN4  
DB0  
DB1  
DB2  
DB3  
DB4  
DB5  
DB6  
DB7  
IN5  
COMPARATOR  
THREE  
STATE  
OUTPUT  
LATCH  
BUFFER  
IN6  
IN7  
SWITCH TREE  
ADDR0  
ADDRESS  
ADDR1  
LATCH  
AND  
ADDR2  
CAPACITOR/  
RESISTOR  
ARRAY  
DECODER  
ADDRESS  
LATCH ENABLE  
V
CC  
GND +V  
–V  
REF  
OUTPUT  
ENABLE  
REF  
1
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