AD9481

www.DataSheet4U.com 8-Bit, 250 MSPS 3.3 V A/D Converter AD9481 FEATURES DNL = ±0.35 LSB INL = ±0.26 LSB Single 3.3 V supply operation (3.0 V to 3.6 V) Power dissipation of 439 mW at 250 MSPS 1 V p-p analog input range Internal 1.0 V reference Single-ended or differential analog inputs De-multiplexed CMOS outputs Power-down mode Clock duty cycle stabilizer FUNCTIONAL BLOCK DIAGRAM VREF SENSE AGND DRGND DRVDD AVDD REFERENCE AD9481 PORT A 8 D7A TO D0A VIN+ VIN– DS+ DS– CLK+ CLK– T AND H 8-BIT ADC PIPELINE CORE 8 PORT B 8 D7B TO D0B CLOCK MGMT DCO+ DCO– LOGIC 05045-001 APPLICATIONS Digital oscilloscopes Instrumentation and measurement Communications Point-to-point radios Digital predistortion loops PDWN S1 Figure 1. GENERAL DESCRIPTION The AD9481 is an 8-bit, monolithic analog-to-digital converter (ADC) optimized for high speed and low power consumption. Small in size and easy to use, the product operates at a 250 MSPS conversion rate, with excellent linearity and dynamic performance over its full operating range. To minimize system cost and power dissipation, the AD9481 includes an internal reference and track-and-hold circuit. The user only provides a 3.3 V power supply and a differential encode clock. No external reference or driver components are required for many applications. The digital outputs are TTL/CMOS-compatible with an option of twos complement or binary output format. The output data bits are provided in an interleaved fashion along with output clocks...