ADC0809 Analog-Digital Converter IC

Resolution: The ADC0809 is an 8-bit ADC, which means it can convert an analog input voltage into an 8-bit binary digital value. This provides 2^8 (256) possible output values.

Analog Input: The IC typically has eight analog input channels (IN0 to IN7), allowing you to connect up to eight different analog voltage sources. Each channel can be selected for conversion individually.

Conversion Time: The ADC0809 has a relatively slow conversion time, typically in the microsecond range. The exact conversion time can depend on the clock frequency used and other factors.

Clock Input: To control the conversion process, the ADC0809 requires an external clock input (CLK) provided by an external oscillator or clock source. The frequency of this clock determines the conversion rate.

Digital Outputs: The ADC0809 provides an 8-bit binary output, which appears on eight output pins (DO to D7). Each pin represents one bit of the digital output.

Start of Conversion (SOC): The SOC (Start of Conversion) pin is used to trigger the start of the conversion process. When a pulse is applied to the SOC pin, the ADC begins the conversion.

Output Latch: The ADC0809 has an output latch (OE, Output Enable) that allows you to enable or disable the digital output. When OE is high, the output is enabled, and when it's low, the output is in a high-impedance state.

Analog Voltage Reference: The IC typically requires an external voltage reference (VREF) to set the conversion range. This reference voltage determines the maximum and minimum values that can be converted. It's often connected to the VREFIN pin.

Applications: The ADC0809 is used in various applications where analog signals need to be converted into digital form, such as data acquisition systems, sensors, and instrumentation.