AD5520 datasheet(4/20 Pages) AD

Numer części	AD5520

Szczegółowy opis	Per Pin Parametric Measurement Unit/Source Measure Unit

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REV. A

–4–

AD5520

TIMING CHARACTERISTICS

1, 2 (AVCC = +15 V

5%, AVEE = –15 V

5%, AGND = 0 V, REFGND = 0 V, DGND = 0 V. All

specifications 0 C to 70 C, unless otherwise noted.)

DVDD

Parameter

5 V

10%

3.3 V

Unit

Conditions/Comments

t1

00

ns min

CS Falling Edge to STB Falling Edge Setup Time

t2

30

200

ns min

STB Pulse Width

t3

40

70

ns min

STB Rising Edge to CS Rising Edge Setup Time

t4

040

ns min

Data Setup Time

t5

550

560

ns min

CS Falling Edge to CPCK Rising Edge Setup Time

t6

320

ns min

CPCK Pulse Width

t7

450

500

ns min

CPCK to

STB Falling Edge Setup Time

t8

150

800

ns min

STB Rising Edge to QMx, CLxDETECT Valid

t9

100

440

ns min

STB Rising Edge to CPOH, CPOL Valid

t10

240

µs min

Comparator Setup Time, MODE2, MODE3 settling

t11

150

500

ns min

Comparator Hold Time

t12

100

440

ns min

Comparator Output Delay Time

t13

320

ns min

Comparator Strobe Pulse Width

NOTES

1See Figure 1.

2All input signals are specified with tr = tf = 1 ns (10% to 90% of V

DD) and timed from a voltage level of (VIL + VIH)/2.

Specifications subject to change without notice.

t11

t10

t13

t12

CPCK

CPOH, CPOL

MEASVOUT

OR MEASIOUT

Figure 2. Comparator Timing

CPCK

AMx, ACx, FSEL,

MSEL, CPSEL

CS

QM4, QM5,

CLHDETECT,

CLLDETECT

CPOL, CPOH

STB

t3

t2

t1

t4

t5

t6

t7

t8

t9

Figure 1. Timing Diagram

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