40msps, 12-bit Adc Integrated Products

The MAX1206 is a 3.3V, 12-bit Analog-to-digital converter (ADC) featuring a fully differential wideband track-and- hold (T/H) input, driving the internal quantizer. The MAX1206 is optimized for low power, small size, and high dynamic performance. This ADC operates from a single 3.0V to 3.6V supply, consuming only 159mW, while delivering a typical signal-to-noise ratio (SNR) per- formance of 68.6dB at a 20MHz input frequency. The T/H-driven input stage accepts single-ended or differen- tial inputs. In addition to low operating power, the MAX1206 features a 0.15mW power-down mode to con- serve power during idle periods. A flexible reference structure allows the MAX1206 to use its internal precision bandgap reference or accept an externally applied reference. A common-mode refer- ence is provided to simplify design and reduce external component count in differential Analog input circuits. The MAX1206 supports both a single-ended and differ- ential input Clock drive. Wide variations in the Clock duty cycle are compensated with the ADCs internal duty-cycle equalizer. The MAX1206 features parallel, CMOS-compatible out- puts. The digital output format is pin selectable to be either twos complement or Gray code. A data-valid indi- cator eliminates external components that are normally required for reliable digital interfacing. A separate power input for the digital outputs accepts a voltage from 1.7V to 3.6V for flexible interfacing with various Logic levels. The MAX1206 is available in a 6mm x 6mm x 0.8mm, 40- pin thin QFN package with exposed paddle (EP), and is specified for the extended industrial (-40C to +85C) temperature range. Refer to the MAX1209 and MAX1211 (see Pin-Compatible Higher/Speed Versions table) for applications that require high dynamic performance for IF input frequencies. By Maxim Integrated Products