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The ADC0801, ADC0802, ADC0803, ADC0804, and ADC0805 devices are CMOS 8-bit successive approximation converters (ADC) that use a differential potentiometric ladder – similar to the 256R products. These converters are designed to allow operation with the NSC800 and INS8080A derivative control bus with Tri-state output latches directly driving the data bus. These ADCs appear like memory locations or I/O ports to the microprocessor and no interfacing logic is needed. Differential analog voltage inputs allow increasing the common-mode rejection and offsetting the analog zero input voltage value. Serial Trojan Remover 6.6 9. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.

Com ADC0801/ADC0802/ADC0803/ADC0804/ADC0805. The microprocessor starts the A/D. Software and hardware details are. Crossover Mac Full. Documents Similar To ADC0804.pdf. The ADC0801, ADC0802, ADC0803, ADC0804, and ADC0805 devices are CMOS 8-bit successive approximation converters (ADC) that use a differential potentiometric ladder.

Clearly you have not connected and managed the ADC0804 control signals properly. You need to activate Chip Select and Write to start a conversion. How To Install A Grab Bar In A Fiberglass Shower. You need to activate Chip Select and Read to read the result.

You need to carefully read the datasheet Chip Select (CS) is pin 1 Read (RD) is pin 2 Write(WR) is pin 3 Please check out the timing diagram on page 6 for starting conversion. Please check out the timing diagram on page 7 for reading the result.

Please check out page 23, section 2.8 for free running mode. Did you momentarily force WR and INTR low after power up? This is really an easy chip to work with.