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ADC0848CCV 参数 Datasheet PDF下载

ADC0848CCV图片预览
型号: ADC0848CCV
PDF下载: 下载PDF文件 查看货源
内容描述: 与多路选择8位向上兼容A / D转换器 [8-Bit uP Compatible A/D Converters with Multiplexer Options]
分类和应用: 转换器
文件页数/大小: 20 页 / 470 K
品牌: NSC [ NATIONAL SEMICONDUCTOR ]
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ADC0844/ADC0848 8-Bit µP Compatible A/D Converters with Multiplexer Options
June 1999
ADC0844/ADC0848
8-Bit µP Compatible A/D Converters with Multiplexer
Options
General Description
The ADC0844 and ADC0848 are CMOS 8-bit successive ap-
proximation A/D converters with versatile analog input multi-
plexers. The 4-channel or 8-channel multiplexers can be
software configured for single-ended, differential or
pseudo-differential modes of operation.
The differential mode provides low frequency input common
mode rejection and allows offsetting the analog range of the
converter. In addition, the A/D’s reference can be adjusted
enabling the conversion of reduced analog ranges with 8-bit
resolution.
The A/Ds are designed to operate from the control bus of a
wide variety of microprocessors. TRI-STATE
®
output latches
that directly drive the data bus permit the A/Ds to be config-
ured as memory locations or I/O devices to the microproces-
sor with no interface logic necessary.
Features
n
Easy interface to all microprocessors
n
Operates ratiometrically or with 5 V
DC
voltage reference
n
No zero or full-scale adjust required
n
4-channel or 8-channel multiplexer with address logic
n
Internal clock
n
0V to 5V input range with single 5V power supply
n
0.3" standard width 20-pin or 24-pin DIP
n
28 Pin Molded Chip Carrier Package
Key Specifications
n
n
n
n
n
Resolution
Total Unadjusted Error
Single Supply
Low Power
Conversion Time
8 Bits
±
1
2
LSB and
±
1 LSB
5 V
DC
15 mW
40 µs
Block and Connection Diagrams
DS005016-1
*ADC0848 shown in DIP Package CH5-CH8 not included on the ADC0844
TRI-STATE
®
is a registered trademark of National Semiconductor Corp.
© 1999 National Semiconductor Corporation
DS005016
www.national.com