Datasheet AD9648-EP (Analog Devices) - 3

Enhanced Product AD9648-EP GENERAL DESCRIPTION
The AD9648-EP is a monolithic, dual-channel, 1.8 V supply, A differential clock input controls al internal conversion cycles. 14-bit, 125 MSPS analog-to-digital converter (ADC). It features An optional duty cycle stabilizer (DCS) compensates for wide a high performance sample-and-hold circuit and on-chip variations in the clock duty cycle while maintaining excel ent voltage reference. overal ADC performance. The product uses multistage differential pipeline architecture The digital output data is presented in offset binary, Gray code, or with output error correction logic to provide 14-bit accuracy at twos complement format. A data output clock (DCO) is provided 125 MSPS data rates and to guarantee no missing codes over the for each ADC channel to ensure proper latch timing with receiving ful operating temperature range. logic. Output logic levels of 1.8 V CMOS or LVDS are supported. The ADC contains several features designed to maximize Output data can also be multiplexed onto a single output bus. flexibility and minimize system cost, such as programmable The AD9648-EP is available in a 64-lead RoHS-compliant LFCSP clock and data alignment and programmable digital test pattern and is specified over the −55°C to +125°C temperature range. generation. The available digital test patterns include built-in Additional information, including Typical Performance deterministic and pseudorandom patterns, along with custom Characteristics at 125 MSPS, can be found in the AD9648 data user-defined test patterns entered via the serial port interface (SPI). sheet. Rev. B | Page 3 of 17 Document Outline FEATURES ENHANCED PRODUCT FEATURES APPLICATIONS FUNCTIONAL BLOCK DIAGRAM PRODUCT HIGHLIGHTS TABLE OF CONTENTS REVISION HISTORY GENERAL DESCRIPTION SPECIFICATIONS DC SPECIFICATIONS AC SPECIFICATIONS DIGITAL SPECIFICATIONS SWITCHING SPECIFICATIONS TIMING SPECIFICATIONS Timing Diagrams ABSOLUTE MAXIMUM RATINGS THERMAL CHARACTERISTICS ESD CAUTION PIN CONFIGURATIONS AND FUNCTION DESCRIPTIONS OUTLINE DIMENSIONS ORDERING GUIDE