AD9484

www.DataSheet4U.net 8-Bit, 500 MSPS, 1.8 V Analog-to-Digital Converter AD9484 FEATURES SNR = 47 dBFS at fIN up to 250 MHz at 500 MSPS ENOB of 7.5 bits at fIN up to 250 MHz at 500 MSPS (−1.0 dBFS) SFDR = 79 dBc at fIN up to 250 MHz at 500 MSPS (−1.0 dBFS) Integrated input buffer Excellent linearity DNL = ±0.1 LSB typical INL = ±0.1 LSB typical LVDS at 500 MSPS (ANSI-644 levels) 1 GHz full power analog bandwidth On-chip reference, no external decoupling required Low power dissipation 670 mW at 500 MSPS—LVDS SDR output Programmable (nominal) input voltage range 1.18 V p-p to 1.6 V p-p, 1.5 V p-p nominal 1.8 V analog and digital supply operation Selectable output data format (offset binary, twos complement, Gray code) Clock duty cycle stabilizer Integrated data capture clock FUNCTIONAL BLOCK DIAGRAM VREF PWDN AGND AVDD REFERENCE CML VIN+ VIN– TRACK-AND-HOLD ADC CORE CLK+ CLK– 8 AD9484 DRVDD DRGND OUTPUT STAGING LVDS 8 D7± TO D0± CLOCK MANAGEMENT OR+ OR– SERIAL PORT DCO+ 09615-001 DCO– SCLK/DFS SDIO CSB Figure 1. APPLICATIONS Wireless and wired broadband communications Cable reverse path Communications test equipment Low cost digital oscilloscopes Satellite subsystems Power amplifier linearization GENERAL DESCRIPTION The AD9484 is an 8-bit, monolithic, sampling analog-to-digital converter (ADC) optimized for high performance, low power, and ease of use. The part operates at up to a 500 MSPS conversion rate and is optimized for outstanding dynamic performance in wideban...