Manufactorer	FAST  ComTec	FAST  ComTec	FAST  ComTec	FAST  ComTec	ACQUIRIS	ORTEC	SENSL
Model	MCS6	P7889	P7887	P7888	TC890	9353	HRMTime
Resolution	100ps	100ps	250ps	1(2)ns	50ps	100ps	432ps  (27ps opt.)
# of inputs	5(6)	1	1	2(4)	6	1	1..4
input sensitivity	10mV	10mV	10mV	50mV	100mV	50mV	TTL
input pulse width	100ps	100ps	125ps	500ps	350ps	500ps	1500ps
edge slope	pos, neg,  both	pos, neg,  both	neg	neg	pos, neg	pos, neg	pos
Dead time	0	0	0	0	15ns	1ns	190ns
Correction	unneeded	unneeded	unneeded	unneeded	yes	yes	no
selfcal. needed	no	no	no	no	yes
time span (max.)	20 days	58 years	1s	2s	10.48ms	6.7ms	143µs
burst rate	5 GHz	5 GHz	4 GHz	1(0.5) GHz	66 MHz	1 GHz	180 MHz
sustained rate	17 MHz	22 MHz	12.2 MHz	28 MHz	25 MHz	10 MHz	4.5 MHz
pulse pair resol.	200ps	200ps	250ps	1ns(2ns)	15ns	1ns	190ns
pulse width mode	yes	yes	no	no	no	no	no
multiple start	yes	no	no	no	no	no	no
TAG bits	16	16	8	0	0	2	16
TAG resolution	6.4ns	13ns	16ns	n/a	n/a	60ns	190ns
Interface	USB 2.0	PCI-64	PCI	PCI	PCI	PCI	USB 2.0
data word length	16-64bit	32bit	32bit	32bit	32bit	32bit
Ext. Clock input	yes	yes	no	opt	yes	no	yes
Sync output	yes	yes	yes	yes	no	no	TTL
power	36W	-	-	-	25W	-	-

_{Please, read also the model specifications in the datasheets of the products.}