The ADC0808, ADC0809 data acquisition component is a monolithic CMOS device with an 8-bit *og-to-di*al 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 *og switch    tree and a successive approximation register. The 8-channel multiplexer can directly access any of 8-single-ended *og 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 16-channel multiplexer with common output (sample/hold port)    see ADC0816 data sheet. (See AN-247 for more information.)

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