The 8-bit ADC0820-N 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-N 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-N has been designed to appear as a memory location or I/O port without the need for external interfacing logic.
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