LTC202CS datasheet(6/16 Pages) LINER

Il numero della parte	LTC202CS

Spiegazioni elettronici	Micropower, Low Charge Injection, Quad CMOS Analog Switches

PDF	16 Pages

Scroll/Zoom	100%

Produttore elettronici	LINER [Linear Technology]

Homepage	http://www.linear.com

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6 / 16 page

LTC201A/LTC202/LTC203

201a23fb

Switching Time Test Circuit

Switch output waveform shown for VS = constant with

logic input waveform as shown. Note that VS may be + or

– as per switching time test circuit. VO is the steady state

output switch on. Feedthrough via gate capacitance may

result in spikes at leading and trailing edge of output

waveform.

Charge Injection Test Circuit

RGEN

VGEN

INX

CL =

1000pF

LT201_202_203 • AI03

OFF

∆ VO

∆ VO IS THE MEASURED VOLTAGE ERROR DUE TO CHARGE INJECTION.

THE ERROR VOLTAGE IN COULOMBS IS ∆Q = CL • ∆VO

LT201_202_203 • AI04

Switching Time Test Circuit

LT201_202_203 • AI01

50%

0.9

tON

tOFF

LOGIC INPUT

tr < 20ns

tf < 20ns

LOGIC INPUT

tr < 20ns

tf < 20ns

SWITCH

INPUT

SWITCH

OUTPUT

LOGIC “1” = SW ON

LOGIC “0” = SW ON

LT201_202_203 • AI02

VS = 2V

IN1

LOGIC

INPUT

SWITCH

INPUT

SWITCH

OUTPUT

(REPEAT TEST FOR IN2, IN3 AND IN4)

1kΩ

35pF

= VS

+ rDS(ON)

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