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ADC0802 - A/D Converters

General Description

The ADC0802 family are CMOS 8-Bit, successive-approximation A/D converters which use a modified potentiometric ladder and are designed to operate with the 8080A control bus via three-state outputs.

Key Features

  • 80C48 and 80C80/85 Bus Compatible - No Interfacing Logic Required.
  • Conversion Time < 100µs.
  • Easy Interface to Most Microprocessors.
  • Will Operate in a “Stand Alone” Mode.
  • Differential Analog Voltage Inputs.
  • Works with Bandgap Voltage References.
  • TTL Compatible Inputs and Outputs.
  • On-Chip Clock Generator.
  • 0V to 5V Analog Voltage Input Range (Single + 5V Supply).
  • No Zero-Adjust Required Ordering Information.

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Full PDF Text Transcription (Reference)

The following content is an automatically extracted verbatim text from the original manufacturer datasheet and is provided for reference purposes only.

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ADC0802, ADC0803 ADC0804 August 1997 8-Bit, MicroprocessorCompatible, A/D Converters Description The ADC0802 family are CMOS 8-Bit, successive-approximation A/D converters which use a modified potentiometric ladder and are designed to operate with the 8080A control bus via three-state outputs. These converters appear to the processor as memory locations or I/O ports, and hence no interfacing logic is required. The differential analog voltage input has good commonmode-rejection and permits offsetting the analog zero-inputvoltage value. In addition, the voltage reference input can be adjusted to allow encoding any smaller analog voltage span to the full 8 bits of resolution.