ADC0820

Ordering Information

Part NumberPackageOrder Online
ADC0820BCN (View)MDIP20
ADC0820CCN (View)MDIP20
ADC0820 PDF Datasheet

Pin Configurations

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ADC0820 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 without the need for external interfacing logic.


ADC0820 Features
  • 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
  • Overflow output available for cascading
  • 0.3" standard width 20-pin DIP
  • 20-pin molded chip carrier package
  • 20-pin small outline package
  • 20-pin shrink small outline package (SSOP)
ADC0820 Parameters

ADC0820 Key Parameters
Resolution(Bits)8
Sample Rate667 KSPS
ADC0820 Other Features
Supply Voltage (V)4.5-8
Input Channels1
ADC0820 Packages and Pinouts
SOIC20, MDIP20