AD9218

Data Sheet AD9218 10-Bit, 40/65/80/105 MSPS 3 V Dual Analog-to-Digital Converter FEATURES ► Dual 10-bit, 40 MSPS, 65 MSPS, 80 MSPS, and 105 MSPS ADC ► Low power: 275 mW at 105 MSPS per channel ► On-chip reference and track-and-hold ► 300 MHz analog bandwidth each channel ► SNR = 57 dB @ 41 MHz, Encode = 80 MSPS ► 1 V p-p or 2 V p-p analog input range each channel ► 3.0 V single-supply operation (2.7 V to 3.6 V) ► Power-down mode for single-channel operation ► Twos complement or offset binary output mode ► Output data alignment mode ► Pin compatible with the 8-bit AD9288 ► –75 dBc crosstalk between channels APPLICATIONS ► Battery-powered instruments ► Hand-held scopemeters ► Low cost digital oscilloscopes ► I and Q communications ► Ultrasound equipment GENERAL DESCRIPTION The AD9218 is a dual 10-bit monolithic sampling analog-to-digital converter with on-chip track-and-hold circuits. The product is low cost, low power, and is small and easy to use. The AD9218 operates at a 105 MSPS conversion rate with outstanding dynamic performance over its full operating range. Each channel can be operated independently. The ADC requires only a single 3.0 V (2.7 V to 3.6 V) power supply and a clock for full operation. No external reference or driver components are required for many applications. The digital outputs are TTL/CMOS compatible and a separate output power supply pin supports interfacing with 3.3 V or 2.5 V logic. The clock input is TTL/CMOS compatible and the 10-bit digital outp...