The OPA625IDBVT is a single high bandwidth Operational Amplifier for use with precision SAR ADC drivers. This family of devices is fully characterized and specified with a 16-bit settling time of 280ns that enables a true 16-bit effective number of bits (ENOB). Along with a high DC precision of only 100μV offset voltage, a wide gain-bandwidth product of 120MHz, a low wideband noise of 2.5nV/√Hz, this family is optimized for driving high-throughput, high-resolution SAR ADCs, such as the ADS88xx family of SAR ADCs. The OPAx625 features two operating modes - high-drive and low-power. In the innovative low-power mode, the OPAx625 tracks the input signal allowing the OPAx625 to transition from low-power mode to high-drive mode at 16-bit ENOB within 170ns.
Rail-to-rail output
High AC and DC precision
Input common-mode range includes negative rail
Low THD and noise allow for a unique power-scalable solution
Low-power mode - 1MHz GBW and 270μA (typical) low quiescent current
Power-scalable feature - 170ns Ultrafast transition from low-power to high-drive mode
Low distortion -122dBc for HD2 and -140dBc for HD3 at 100kHz
