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Switching Characteristics

0

2

4

6

8

10

12

14

16

0.0

0.5

1.0

1.5

2.0

2.5

3.0

3.5

4.0

4.5

5.0

vs

0

2

4

6

8

10

12

0

2

4

6

8

10

12

14

16

18

20

OE or OE Switching Frequency − MHz

vs

OE or OE SWITCHING FREQUENCY

A and B Ports Open

One OE or OE Switching

SN74CB3Q3345

8-BIT FET BUS SWITCH

2.5-V/3.3-V LOW-VOLTAGE HIGH-BANDWIDTH BUS SWITCH

SCDS144B – OCTOBER 2003 – REVISED MARCH 2005

over recommended operating free-air temperature range (unless otherwise noted) (see Figure 3)

FROM

TO

± 0.2 V

± 0.3 V

PARAMETER

UNIT

(INPUT)

(OUTPUT)

MIN

MAX

MIN

MAX

OE or OE

A or B

10

20

MHz

A or B

B or A

0.12

0.2

ns

OE or OE

A or B

1.5

7.7

1.5

6.5

ns

OE or OE

A or B

1

6.9

1

6.8

ns

(1)

(2)

The propagation delay is the calculated RC time constant of the typical ON-state resistance of the switch and the specified load

capacitance, when driven by an ideal voltage source (zero output impedance).

5