Part ADC0820
Description A/D Converter
Manufacturer National Semiconductor
Size 472.76 KB
National Semiconductor
ADC0820

Overview

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.

  • n n n n n n n
  • 8 Bits 2.5 µs Max (RD Mode) 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 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) Key Specifications
  • Resolution
  • Conversion Time
  • Low Power
  • Total Unadjusted Error
  • 5 µs Max (WR-RD Mode) 75 mW Max ± 1⁄2 LSB and ± 1 LSB Connection and Functional Diagrams Dual-In-Line, Small Outline and SSOP Packages Molded Chip Carrier Package