4

INDUSTRIALTEMPERATURERANGE

IDTQS32X2245

HIGH-SPEED CMOS QUICKSWITCH DOUBLE-WIDTH BUS SWITCH

POWER SUPPLY CHARACTERISTICS

Symbol

Parameter

Max.

Unit

Quiescent Power Supply Current

6

µA

1.5

mA

0.25

mA/MHz

Control Inputs Toggling at 50% Duty Cycle

NOTES:

1. For conditions shown as Min. or Max., use the appropriate values specified under DC Electrical Characteristics.

∆Icc.

3. This current applies to the control inputs only and represents the current required to switch internal capacitance at the specified frequency. The A and B inputs generate no significant

AC or DC currents as they transition. This parameter is guaranteed but not production tested.

SWITCHING CHARACTERISTICS OVER OPERATING RANGE

Ω unless otherwise noted.

Symbol

Parameter

Typ.

Max.

Unit

—

—

1.25

ns

An to/from Bn

Switch Turn-on Delay

0.5

—

6.6

ns

OE to An/Bn

0.5

—

4.5

ns

OE to An/Bn

NOTES:

1. Minimums are guaranteed but not production tested.

2. This parameter is guaranteed but not production tested.

3. The bus switch contributes no propagation delay other than the RC delay of the ON resistance of the switch and the load capacitance. The time constant for the switch alone

Since this time constant is much smaller than the rise and fall times of typical driving signals, it adds very little propagation delay to

the system. Propagation delay of the bus switch, when used in a system, is determined by the driving circuit on the driving side of the switch and its interaction with the load

on the driven side.