DC2581A-A, Demo Board based on LTC2341-18 Dual, 18-Bit, 666ksps SAR ADC

DC2581A-A, Demonstration Circuit shows the proper way to drive the LTC2341-18 ADC. The LTC2341-18 is a low noise, high speed, simultaneous sampling 18-bit successive approximation register (SAR) ADC. The LTC2341-18 has a flexible SoftSpan interface that allows conversion-by-conversion control of the input voltage span on a per-channel basis. An internal 2.048V reference and 2× buffer simplify basic operation while an external reference can be used to increase the input range and the SNR of the ADC