AS1745V-T datasheet(8/16 Pages) AMSCO

Part #	AS1745V-T

Description	High-Speed, Low-Voltage, Dual, Single-Supply, 4?? SPDT Analog Switches

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Manufacturer	AMSCO [ams AG]

Direct Link	http://www.ams.com

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8 / 16 page

AS1744, AS1745

austriamicrosystems

Data Sheet

Timing Diagrams and Test Setups

www.austriamicrosystems.com

Revision 1.53

8 - 16

Timing Diagrams and Test Setups

Figure 11. Switching Time

Figure 12. Break-Before-Make Interval

Figure 13. Charge Injection

AS1744/

AS1745

COMx

RLOAD

VOUT

INx

V+

Switch

Output

Logic

Input

0

VOUT

VIH + 0.5V

tON

tOFF

tR < 5ns

tF < 5ns

50%

0.9 x VOUT

NOx or NCx

VIN

NCx or NOx

CLOAD

†

† Includes stray capacitance and fixture capacitance.

0.9 x VOUT

Logic input waveforms inverted for switches

that have the opposite logic sense.

GND

Logic

Input

AS1744/

AS1745

COMx

VOUT

INx

V+

NOx or NCx

VIN

NCx or NOx

† Includes stray capacitance and fixture capacitance.

Logic

Input

0

VOUT

VIH + 0.5V

tD

tR < 5ns

tF < 5ns

50%

0.9 x VOUT

RLOAD

CLOAD

†

GND

Logic

Input

AS1744/

AS1745

COMx

NCx

or NOx

CLOAD

VOUT

RGEN

V+

VOUT

INx

∆VOUT

INx depends on switch configuration; input polar-

ity is determined by the sense of the switches.

Q =

∆VOUT x CLOAD

V+

VINL to

VINH

INx

Off

On

VGEN

GND

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