DG201ACY datasheet(4/7 Pages) INTERSIL

4 / 7 page

4-4

Test Circuits and Waveforms

FIGURE 1. tON AND tOFF SWITCHING TEST CIRCUIT AND MEASUREMENT POINTS

NOTES:

∆VO = Measured voltage error due to charge injection.

7. The error in coulombs is Q = CL x ∆VO.

FIGURE 2. CHARGE INJECTION TEST CIRCUIT AND MEASUREMENT POINTS

C = 0.001

µF||0.1µF

Chip Capacitors

FIGURE 3. OFF ISOLATION TEST CIRCUIT

C = 0.001

µF||0.1µF

Chip Capacitors

FIGURE 4. CHANNEL TO CHANNEL CROSSTALK TEST

CIRCUIT

LOGIC “0” = SWITCH ON

50%

90%

tOFF

LOGIC

†

INPUT

SWITCH

OUTPUT

tON

tr < 20ns

tf < 20ns

IN1

LOGIC

INPUT

GND

VS = 2V

Ω

35pF

SWITCH

OUTPUT

15V

V+

-15V

V-

SWITCH

INPUT

(REPEAT TEST FOR

IN2, IN3 AND IN4)

VO = VS

RL + rDS(ON)

90%

SWITCH

INPUT

†Logic shown for DG201A, invert for DG202.

CL = 1nF

INX

∆VO

OFF

SWITCH

OUTPUT

ANALYZER

SIGNAL

GENERATOR

V+

V-

-15V

INX

GND

CHAN A

CHAN B

VIN

+15V

OIRR

20 Log

--------

0V,

V+

VS1

GND

IN1

VD1

IN2

Ω

0V, 2.4V

V-

-15V

VD2

ANALYZER

CHAN A

CHAN B

SIGNAL

GENERATOR

VS2

2.4V

+15V

CCRR

20 Log

VD2

-----------

DG201A, DG202

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