ADC1061

ADC1061 10-Bit High-Speed µP-Compatible A/D Converter with Track/Hold Function June 1999 ADC1061 10-Bit High-Speed µP-Compatible A/D Converter with Track/Hold Function General Description Using a modified half-flash conversion technique, the 10-bit ADC1061 CMOS analog-to-digital converter offers very fast conversion times yet dissipates a maximum of only 235 mW. The ADC1061 performs a 10-bit conversion in two lower-resolution “flashes”, thus yielding a fast A/D without the cost, power dissipation, and other problems associated with true flash approaches. The analog input voltage to the ADC1061 is tracked and held by an internal sampling circuit. Input signals at frequencies from DC to greater than 160 kHz can therefore be digitized accurately without the need for an external sample-and-hold circuit. For ease of interface to microprocessors, the ADC1061 has been designed to appear as a memory location or I/O port without the need for external interface logic. Features n n n n n n 1.8 µs maximum conversion time to 10 bits Low power dissipation: 235 mW (maximum) Built-in track-and-hold No external clock required Single +5V supply No missing codes over temperature Applications n n n n Waveform digitizers Disk drives Digital signal processor front ends Mobile telecommunications Simplified Block and Connection Diagrams DS010559-2 TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS010559 www.national.com...