This is a 12-channel charge analog-to-digital converter with 10-bit resolution made by LeCroy. This card can exist only in a CAMAC crate. More Info can be found in the manual.

ADC Data Format

The card will use the short form if at all possible. However, you must be prepared to decode both types.

Short Form

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^--------------------------------- ADC2249 ID (from header)

--------^-^^^--------------------------- Crate number

-------------^-^^^^--------------------- Card number

-----------------------^---------------- Channel number

-------------------------^^^^ ^^^^ ^^^^- adc value

Long Form

1xxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^^^ ^^^^ ^^----------------------- AD2249 ID (from header)

-----------------^^ ^^^^ ^^^^ ^^^^ ^^^^- length (2 or 4 longs)

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

--------^-^^^--------------------------- Crate number

-------------^-^^^^--------------------- Card number

-----------------------^---------------- Channel number

-------------------------^^^^ ^^^^ ^^^^- adc value

if length is 4 then a time stamp is added:

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^- low part of double

xxxx xxxx xxxx xxxx xxxx xxxx xxxx xxxx

^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^ ^^^^- high part of double

The time stamp is the number of seconds since Jan 1, 2000.