Power Supply:5V, VCC, GROUND
IN0-IN7: 8 channel analog data input port
D0-D7:8bit data output port
CLK:ADC0809 clock

Parameter: PCB size:3.4*5.2cm Power apply:5V Interface instruction: VCC: power postive GND: power negative IN0-IN7: 8 channel analog data input port D0-D7:8bit data output port CLK:ADC0809 clock OE:output enable signal,high level is available. EOC:end of conversion signal,high level is available. STR:start conversion signal

Jumper: J7:potentiometer enable control.if short J7 by jumper cap,potentiometer connect to IN3. J8:control connection of VREF and VCC.if short J8 by jumper cap,VRET = VCC.if not,you can input reference voltage to VREF . J9:control connection of VREF- and GND.if short J9 by jumper cap,VRET- = GND.if not,you can input reference voltage to VREF-. J3/J4/J4:control address of analoy input.also can control by MCU. Listing: PCB board x1 male pin x2 jumper cap x7 IC socket DIP28 x1 ADC0809 x1 104 ceramic capacitor x1 10uf capacitor x1 3596-103 potentiometer x1 4.7K resistor x1 3MM LED Red x1