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ADC0808

Texas Instruments
Part Number ADC0808
Manufacturer Texas Instruments
Description A/D Converter
Published Jul 28, 2020
Detailed Description ADC0808-N, ADC0809-N www.ti.com SNAS535H – OCTOBER 1999 – REVISED MARCH 2013 ADC0808/ADC0809 8-Bit μP Compatible A/D ...
Datasheet PDF File ADC0808 PDF File

ADC0808
ADC0808


Overview
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 FEATURES 1 •2 Easy Interface to All Microprocessors • Operates Ratiometrically or with 5 VDC or Analog Span Adjusted Voltage Reference • No Zero or Full-Scale Adjust Required • 8-Channel Multiplexer with Address Logic • 0V to VCC Input Range • Outputs meet TTL Voltage Level Specifications • ADC0808 Equivalent to MM74C949 • ADC0809 Equivalent to MM74C949-1 KEY SPECIFICATIONS • Resolution: 8 Bits • Total Unadjusted Error: ±½ LSB and ±1 LSB • Single Supply: 5 VDC • Low Power: 15 mW • Conversion Time: 100 μs DESCRIPTION The ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit analog-todigital converter, 8-channel multiplexer and microprocessor compatible control logic.
The 8-bit A/D converter uses successive approximation as the conversion technique.
The converter features a high impedance chopper stabilized comparator, a 256R voltage divider with analog switch tree and a successive approximation register.
The 8-channel multiplexer can directly access any of 8-single-ended analog signals.
The device eliminates the need for external zero and full-scale adjustments.
Easy interfacing to microprocessors is provided by the latched and decoded multiplexer address inputs and latched TTL TRI-STATE outputs.
The design of the ADC0808, ADC0809 has been optimized by incorporating the most desirable aspects of several A/D conversion techniques.
The ADC0808, 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 16channel multiplexer with common output (sample/hold port) see ADC0816 data sheet.
(See AN-247 (Literature Numbe...


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