ADS5421 Datasheet | Burr-Brown

FEATURES q HIGH DYNAMIC RANGE: High SFDR: 83d B at 10MHz f IN High SNR: 75d B at 10MHz f IN q ON-BOARD TRACK-AND-HOLD: Differential Inputs Selectable Full-Scale Input Range q FLEXIBLE CLOCKING: Differential or Single-Ended Accepts Sine or Square Wave Clocking Down to 0.5VPP Variable Threshold Level APPLICATIONS q MUNICATIONS RECEIVERS q TEST INSTRUMENTATION q PROFESSIONAL CCD IMAGING DESCRIPTION The ADS5421 is a high-dynamic range 14-bit, 40MHz, pipelined Analog-to-Digital Converter (ADC). It includes a high-bandwidth linear track-and-hold amplifier that gives excellent spurious performance up to and beyond the Nyquist rate. The clock input can accept a low-level differential sine wave or square wave signal down to 0.5VPP, further improving the Signal-to-Noise Ratio (SNR) performance. The ADS5421 has a 4VPP differential input range (2VPP - 2 inputs) for optimum Spurious-Free Dynamic Range (SFDR). The differential operation gives the lowest even-order harmonic ponents. A lower input voltage can also be selected using the internal references, further optimizing SFDR. The ADS5421 is available in a small LQFP-64 package. 2VPP 2VPP IN IN CM (+2.5V) T&H +VS Timing Circuitry 14-Bit Pipelined ADC Core Error Correction Logic DV CLK D0 3-State Outputs - - - D13 Reference Ladder and Driver Reference and Mode Select REFT VREF SEL1 SEL2 REFB OE VDRV Please be aware that an important notice concerning availability, standard warranty, and use in critical applications of Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet. All trademarks are the property of their respective owners. PRODUCTION DATA information is current as of publication date. Products conform to specifications per the terms of Texas Instruments standard warranty. Production processing does not necessarily include testing of all parameters. .ti. Copyright © 2001-2005 Texas Instruments, Incorporated ABSOLUTE MAXIMUM RATINGS(1) +VSA,...