Delivering IF sampling rates up to 400 MHz, the AD9433 is a 12-bit monolithic sampling a/d converter with an on-chip track-and-hold circuit. The device operates at a 125 Msamples/s conversion rate and is optimized for dynamic performance in wideband and high IF carrier systems. The chip requires a 5V analog power supply and a differential encode clock for full performance 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 3.3V or 2.5V logic. A user selectable on-chip circuit optimizes SFDR performance of 90 dBc from dc to 70 MHz. A user select pin allows optimized SINAD vs. SFDR for a particular input frequency range. Available in a 52-pin SMT package, price starts at $59.95 each/1,000.