The OPAx363 and OPAx364 series op amps are optimized for driving medium speed (up to 100-kHz) sampling A/D converters. However, they also offer excellent performance for higher speed converters. The no-crossover input stage of the OPAx363 and OPAx364 directly drive A/D converters without degradation of differential linearity and THD. They provide an effective means of buffering the A/D converter input capacitance and resulting charge injection while providing signal gain. Figure 25 and Figure 26 show the OPAx363 and OPAx364 configured to drive the ADS8324 and the 12-bit A/D converter on the MSP430.