LTC221C 데이터 시트보기 (PDF) - Linear Technology

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LTC221C

Micropower, Low Charge Injection, Quad CMOS Analog Switches with Data Latches

Linear Technology 

LTC221/LTC222

APPLICATIO S I FOR ATIO

In-Circuit ESD Test Circuit

ANY SOURCE OR DRAIN PIN

ESD TESTER

LTC221/

LTC222

1.5k

S OR D

V+

15V

±4kV

100pF

PER MIL-STD-883C

METHOD 3015.2

V–

GND

0.1µF

POWER APPLIED

OR OPEN CIRCUT

–15V

0.1µF

LTC221/222 • TA07

3V

WR

0V

3V

LTC221 IN

0V

3V

LTC222 IN

0V

VS

VO

0V

LOGIC INPUT

tr < 20ns

tr < 20ns

tON WR

50%

VO 0.9

tOFF WR

WR Switching Time Test Circuit

LOGIC

50%

INPUT

15V

SWITCH

WR

V+

INPUT

SWITCH

S1

VS = 2V

D1

OUTPUT

VO

LOGIC IN1

INPUT

RL

CL

1k

35pF

VO 0.9

LTC221/222 • AI08

GND

V–

OV

–15V

VO

=

VS

RL+

RL

rDS(ON)

(REPEAT TEST FOR

IN2, IN3 AND IN4)

LTC221/222 • AI09

3V

WR

OV

3V

LTC221 IN

OV

3V

LTC222 IN

OV

WR Setup Conditions

1.5V

tWW

tDW

0.8V

1.5V

tWD

0.8V

2.4V

2.4V

LTC221/222 • AI10

WR/Input Minimum Timing Requirements

PARAMETER

MIN LIMIT

UNITS

tWW

Write Pulse Width

230

ns

tDW

Data Valid to Write

180

ns

tWD

Data Valid After Write

30

ns

2212fa

6

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