ADC12062 Datasheet | National Semiconductor

Description Using an innovative multistep conversion technique the 12-bit ADC12062 CMOS analog-to-digital converter digitizes signals at a 1 MHz sampling rate while consuming a maximum of only 75 m W on a single a 5V supply The ADC12062 performs a 12-bit conversion in three lower-resolution ‘‘flash’’ conversions yielding a fast A D without the cost and power dissipation associated with true flash approaches The analog input voltage to the ADC12062 is tracked and held by an internal sampling circuit allowing high frequency input signals to be accurately digitized without the need for an external sample-and-hold circuit The multiplexer output is available to the user in order to perform additional external signal processing before the signal is digitized When the converter is not digitizing signals it can be placed in the Standby mode typical power consumption in this mode is 100 m W Features Built-in sample-and-hold Single a 5V supply Single channel or 2 channel multiplexer operation Low Power Standby mode Key Specifications Y Y Y Y Y Sampling rate Conversion time Signal-to-Noise Ratio f IN e 100 k Hz Power dissipation (fs e 1 MHz) No missing codes over temperature 1 MHz (min) 740 ns (typ) 69 5 d B (min) 75 m W (max) Guaranteed Applications Y Y Y Y Y Digital signal processor front ends Instrumentation Disk drives Mobile telemunications Waveform digitizers Block Diagram TL H 11490 - 1 Ordering Information Industrial (b40 C s TA s a 85 ) ADC12062BIV ADC12062BIVF ADC12062CIV ADC12062CIVF ADC12062EVAL TRI-STATE is a registered trademark of National Semiconductor Corporation C1995 National Semiconductor Corporation TL H 11490 RRD-B30M75 Printed in U S A Package V44 Plastic Leaded Chip Carrier VGZ44A Plastic Quad Flat Package V44 Plastic Leaded Chip Carrier VGZ44A Plastic Quad Flat Package Evaluation Board Absolute Maximum Ratings (Notes 1 2) Soldering Information (Note 6) V Package Infrared 15 seconds VF Package Vapor Phase (60 seconds) Infrared (15...