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ADC0809CCV 其他数据使用手册 - TI（德州仪器）
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TI（德州仪器）
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AD转换器
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PLCC-28
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ADC0809CCV数据手册
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ADC0808-N, ADC0809-N
www.ti.com
SNAS535H –OCTOBER 1999–REVISED MARCH 2013
ADC0808/ADC0809 8-Bit μP Compatible A/D Converters with 8-Channel Multiplexer
Check for Samples: ADC0808-N, ADC0809-N
1
FEATURES
DESCRIPTION
The ADC0808, ADC0809 data acquisition component
2
• Easy Interface to All Microprocessors
is a monolithic CMOS device with an 8-bit analog-to-
• Operates Ratiometrically or with 5 V
DC
or
digital converter, 8-channel multiplexer and
Analog Span Adjusted Voltage Reference
microprocessor compatible control logic. The 8-bit
• No Zero or Full-Scale Adjust Required
A/D converter uses successive approximation as the
conversion technique. The converter features a high
• 8-Channel Multiplexer with Address Logic
impedance chopper stabilized comparator, a 256R
• 0V to V
CC
Input Range
voltage divider with analog switch tree and a
• Outputs meet TTL Voltage Level Specifications
successive approximation register. The 8-channel
multiplexer can directly access any of 8-single-ended
• ADC0808 Equivalent to MM74C949
analog signals.
• ADC0809 Equivalent to MM74C949-1
The device eliminates the need for external zero and
full-scale adjustments. Easy interfacing to
KEY SPECIFICATIONS
microprocessors is provided by the latched and
• Resolution: 8 Bits
decoded multiplexer address inputs and latched TTL
• Total Unadjusted Error: ±½ LSB and ±1 LSB
TRI-STATE outputs.
• Single Supply: 5 VDC
The design of the ADC0808, ADC0809 has been
• Low Power: 15 mW optimized by incorporating the most desirable aspects
of several A/D conversion techniques. The ADC0808,
• Conversion Time: 100 μs
ADC0809 offers high speed, high accuracy, minimal
temperature dependence, excellent long-term
accuracy and repeatability, and consumes minimal
power. These features make this device ideally suited
to applications from process and machine control to
consumer and automotive applications. For 16-
channel multiplexer with common output (sample/hold
port) see ADC0816 data sheet. (See AN-247
(Literature Number SNOA595) for more information.)
Block Diagram
Connection Diagrams
1
Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of
Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
2All trademarks are the property of their respective owners.
PRODUCTION DATA information is current as of publication date.
Copyright © 1999–2013, Texas Instruments Incorporated
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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