Configurable analog-to-digital converter and processing for photon counting

摘要: A photon counting system includes a sensor, charge-sensitive amplifier (CSA) and an analog-to-digital converter (ADC). The CSA is configured to convert energy detected by the sensor voltage pulses. ADC digitize pulses generated CSA. successive approximation circuitry. circuitry N-bit digital-to-analog (DAC), register (SAR), plurality of registers, multiplexer selectively route outputs SAR registers DAC for conversion analog signal.