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ADC0820 - A/D Converter

General Description

By using a half-flash conversion technique, the 8-bit ADC0820 CMOS A/D offers a 1.5 µs conversion time and dissipates only 75 mW of power.

The half-flash technique consists of 32 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC.

Key Features

  • n n n n n n n n n 8 Bits 2.5 µs Max (RD Mode) n n n n n n Built-in track-and-hold function No missing codes No external clocking Single supply.
  • 5 VDC Easy interface to all microprocessors, or operates stand-alone Latched TRI-STATE ® output Logic inputs and outputs meet both MOS and T2L voltage level specifications Operates ratiometrically or with any reference value equal to or less than VCC 0V to 5V analog input voltage range with single 5V supply No zero or full-scale adjust required.

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Full PDF Text Transcription for ADC0820 (Reference)

Note: Below is a high-fidelity text extraction (approx. 800 characters) for ADC0820. For precise diagrams, and layout, please refer to the original PDF.

ADC0820 8-Bit High Speed µP Compatible A/D Converter with Track/Hold Function June 1999 ADC0820 8-Bit High Speed µP Compatible A/D Converter with Track/Hold Function Gene...

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t High Speed µP Compatible A/D Converter with Track/Hold Function General Description By using a half-flash conversion technique, the 8-bit ADC0820 CMOS A/D offers a 1.5 µs conversion time and dissipates only 75 mW of power. The half-flash technique consists of 32 comparators, a most significant 4-bit ADC and a least significant 4-bit ADC. The input to the ADC0820 is tracked and held by the input sampling circuitry eliminating the need for an external sample-and-hold for signals moving at less than 100 mV/µs. For ease of interface to microprocessors, the ADC0820 has been designed to appear as a memory location or I/O port

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