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Claiming to deliver unequalled dynamic system-level performance and low power for wideband applications, the ADC10D1000 2.5GHz fully differential amplifier and the LMH6554 10-bit, 2GSPS (Giga-sample per second) single/1GSPS dual ADC are available from National Semiconductor. At 248MHz, the ADC10D1000 provides the industry's highest SFDR (spurious-free dynamic range) performance of 66dB relative to carrier and 9.1 ENOB (effective number of bits). Running off a single supply voltage, it consumes 33% less total power (2.8W) than comparable ADCs, says the company. The 2.5GHz LMH6554 wideband, fully differential amplifier drives the 10-bit ADC10D1000, providing 0.1 dB gain flatness up to 800MHz,an  SFDR of 72dBc at 250MHz and a low-input voltage noise performance of 0.9nV/sqrtHz. The ADC10D1000 yields 2.52pJ (picojoules) per conversion, while the LMH6554 consumes 21µA per MHz. The SFDR and ENOB allow it to maintain performance through the first, second and third Nyquist zones. For example, high-resolution radar systems can use fewer parallel channels to digitise the same bandwidth. A pair of analogue input signals has sampling rates up to 1GSPS, or a single analogue input signal operates at speeds up to 2GSPS. AutoSync for multi-chip synchronisation and programmable gain and offset adjustment for each channel are also included. The internal track-and-hold amplifier and the extended self-calibration scheme enable a very flat response of all dynamic parameters beyond Nyquist while providing a low 10 (-18) code-error rate. The LMH6554 differential amplifier drives 8- to 16-bit high-speed ADCs. The low-impedance differential output drives ADC inputs and any intermediate filter. It delivers 16-bit linearity up to 75MHz when driving 2V peak-to-peak into loads as low as 200Ohm. It provides a signal bandwidth up to 1.8GHz, a 8dB noise figure and a slew rate of 6200V/µs.