This is an output pin which goes high once the conversion is over. This pin is should be temporarily made high to select ADC channel. These 7 pins are the input pins for Analog voltage sensor. This is an input pin which is made high to start conversion. Submitted by admin on 13 October 
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Hence, if you are looking for a ADC module with a decent resolution of 8-bit that could measure up to 8 channels then this IC is for you. Output 2 -1 to 2 Has to be given clock signals 0V-5V 20Mhz approx.
Once the channel is set it should be enabled by making the Address latch enabled ALE pin to go high momentarily. The c onverter features a high impedance chop per stabilized ac0808, a R volta ge divider with analog switch tree and a successive approximation register.
The converter fea- tures a high impedance chopper stabilized comparator, a R voltage divider with analog switch tree and a successive approximation register. End of Conversion EOC. Analog Channel 1 to 5. Since the ADC IC can measure up to eight Analog voltage and also does not have an internal clock slightly requires more components to make it work compared to its predecessor ADC Submitted by admin on 13 October Th e 8-channel multiplexer can directly ac cess any of 8-single-ended analog signa ls.
National Semiconductor
These three pins are used to select the channel. See AN for more information.
The device eliminates the need for external zero and full-scale adjustments. These features make this device ideally suit. Connect to ground of the circuit.
ADC Pinout, How to Use & Datasheet
That is for every ddatasheet of The ADC, ADC offers high speed, high accuracy, minimal temperature dependence, ex- cellent long-term accuracy and repeatability, and consumes minimal power. Vref is connected to ground normally. The right input analog voltage can be given to pins from IN1 to IN7, but the IC datashdet read the voltage of only one channel at a time.
This pin is should be temporarily made high to select ADC channel.
8-bit Microprocessor Compatible A/D Converters With 8-Channel Multiplexer
These 7 pins are the input pins for Analog voltage sensor. These three bits have to be set as shown in the table below to access the respective analog channel. As you can see in the image the voltage value is 2.
The 8-channel multiplexer can direct. It is a pin Eight channel 8-bit ADC module. These features make this ddatasheet ideally suit- ed to applications from process and machine control to con- sumer and automotive applications. Powers the IC typically with 5V.
ADC Datasheet(PDF) - National Semiconductor (TI)
Or even to use as a standalone ADC module. The 8-channel datashete can direct- ly access any of datasheef analog signals. Output digital pins which gives the result of the ADC conversion. Has to be made high to get output on output pins.
In the above circuit I have used a potentiometer to feed in a variable voltage of 0V to 5V to the IN1 pin and the present Voltage is read using a voltmeter. The device eliminates the need for external zero and full-scale.
Easy interfacing to microprocessors is provided.
The device eliminates the need for external zero and full-scale adjustment s. The obtained value is 2.
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