ADC12181 Datasheet | National Semiconductor

Description The ADC12181 is a monolithic CMOS analog-to-digital converter capable of converting analog input signals into 12-bit digital words at 10 megasamples per second (MSPS). The ADC12181 utilizes an innovative pipeline architecture to minimize die size and power consumption. Self-calibration and error correction maintain accuracy and performance over temperature. The ADC12181 converter operates on a 5V power supply and can digitize analog input signals in the range of 0 to 2V. A single convert clock controls the conversion operation. All digital I/O is TTL patible. The ADC12181 is designed to minimize external ponents necessary for the analog input interface. An internal sample-and-hold circuit samples the analog input and an internal amplifier buffers the reference voltage input. The ADC12181 is available in the 32-lead TQFP package and is designed to operate over the extended mercial temperature range of -40˚C to +85˚C. n Internal Sample-and-hold n Internal Reference buffer amplifier n Low power consumption Key Specifications n n n n n n n n Resolution Conversion Rate DNL SNR ENOB Analog Input Range Supply Voltage Power Consumption, 10 MHz 12 Bits 10 Msps (min) ± 0.4 LSB (typ) 65 d B (typ) 10.4 Bits (typ) 2 Vpp (min) +5V ± 5% 235 m W (typ) Applications n n n n n Image processing front end PC-based data acquisition Scanners Fax machines Waveform digitizer Features n Single 5V power supply n Simple analog input interface Connection Diagram Ordering Information Industrial (- 40˚C ≤ TA ≤ +85˚C) ADC12181CIVT Package 32 pin TQFP © 2002 National Semiconductor Corporation DS101039 .national. Ordering Information (Continued) Industrial (- 40˚C ≤ TA ≤ +85˚C) Package Evaluation Board ADC12181 EVAL Simplified Block Diagram .national. Pin Descriptions and Equivalent Circuits #2 No. 2 Symbol VIN Equivalent Circuit Description Analog signal input. With a 2.0V reference voltage, input signal voltages in the range of 0...