Author/Authors :
Yarema، نويسنده , , R.J. and Foster، نويسنده , , G.W. and Knickerbocker، نويسنده , , K. and Sarraj، نويسنده , , M. and Tschirhart، نويسنده , , Hannah R. and Whitmore، نويسنده , , J. and Zimmerman، نويسنده , , T. and Lindgren، نويسنده , , M.، نويسنده ,
Abstract :
A circuit has been designed for digitizing PMT signals over a wide dynamic range (17–18 bits) with 8 bits of resolution at rates up to 53 MHz. Output from the circuit is in a floating point format with a 4 bit exponent and an 8 bit mantissa. The heart of the circuit is a full custom integrated circuit called the QIE (Charge Integrator and Encoder). The design of the QIE and associated circuitry reported here permits operation over a 17 bit dynamic range. Test results of a multirange device are presented for the first time.
