C205A

The Mod. C205 A is a double width CAMAC unit housing 16 charge integrating ADC channels. For each channel, the input charge, received when the GATE signal is active, is converted to a voltage level through a Charge to Voltage Converter (CVC); each CVC output voltage is then amplified by both a 1X-gain amplifier and a 7.5X-gain amplifier, and sequentially transformed into two corresponding 12-bit words through two parallel 12-bit Analog to Digital Converters (ADC): this allows to achieve a 15 bit total dynamic range. Meanwhile, a BUSY output signal is available at the corresponding pins of the 10-pin front panel connector. Each couple of words corresponding to a conversion value is stored into a RAM-type internal memory (readable via CAMAC) in sequential order.
At the end of the analog-to-digital conversion of the last input signal, a LAM signal is generated. At this point the conversion values corresponding to each input charge can be read via CAMAC.
The TEST input connector allows the user to perform test operation by using a single input signal common for all channels.