500ksps 8-channel data acquisition circuit

The LTC1278's high input impedance allows multiplexing without the need for a buffer amplifier. Single channel and multiplexed high speed data acquisition systems benefit from the dynamic conversion performance of the LTC1278/LTC1279. The figure shows an 8-channel data acquisition system of 500ksps. The high input impedance of the LTC1278 eliminates the need for a buffer amplifier between multiple outputs and the ADC input.