ADC08351 Datasheet | National Semiconductor

Description The ADC08351 is an easy to use low power, low cost, small size, 42 MSPS analog-to-digital converter that digitizes signals to 8 bits. The ADC08351 uses an unique architecture that achieves 7.2 Effective Bits with a 4.4 MHz input and 42 MHz clock frequency and 6.8 Effective Bits with a 21 MHz input and 42 MHz clock frequency. Output formatting is straight binary coding. To minimize system cost and power consumption, the ADC08351 requires minimal external ponents and includes input biasing to allow optional a.c. input signal coupling. The user need only provide a +3V supply and a clock. Many applications require no separate reference or driver ponents. The excellent dc and ac characteristics of this device, together with its low power consumption and +3V single supply operation, make it ideally suited for many video and imaging applications, including use in portable equipment. Total power consumption is reduced to less than 7 m W in the power-down mode. Furthermore, the ADC08351 is resistant to latch-up and the outputs are short-circuit proof. Fabricated on a 0.35 micron CMOS process, the ADC08351 is offered in TSSOP and is designed to operate over the mercial temperature range of - 20˚C to +85˚C. Features n n n n n Low Input Capacitance Internal Sample-and-Hold Function Single +3V Operation Power Down Feature TRI-STATE ® Outputs Key Specifications n Resolution n Maximum Sampling Frequency n ENOB @ f CLK = 42 MHz, f IN = 4.4 MHz n Guaranteed No Missing Codes n Power Consumption 40 m W (typ); 48 m W (max) (Excluding Reference Current) 8 Bits 42 MSPS (min) 7.2 Bits (typ) Applications n n n n n n n n n Video Digitization Digital Still Cameras Set Top Boxes Digital Camcorders munications Medical Imaging Personal puter Video CCD Imaging Electro-Optics Pin Configuration DS100895-1 Ordering Information ADC08351CIMTC ADC08351CIMTCX TSSOP TSSOP (tape & reel) TRI-STATE ® is a registered trademark of National Semiconductor Corporation. © 2000 National...