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AD7302 Datasheet(Fiches technique) 3 Page - Analog Devices

Numéro de pièce AD7302
Description  2.7 V to 5.5 V, Parallel Input Dual Voltage Output 8-Bit DAC
Télécharger  16 Pages
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Fabricant  AD [Analog Devices]
Site Internet  http://www.analog.com
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AD7302
–3–
REV. 0
TIMING CHARACTERISTICS1, 2
Limit at TMIN, TMAX
Parameter
(B Version)
Units
Conditions/Comments
t1
0
ns min
Address to Write Setup Time
t2
0
ns min
Address Valid to Write Hold Time
t3
0
ns min
Chip Select to Write Setup Time
t4
0
ns min
Chip Select to Write Hold Time
t5
20
ns min
Write Pulse Width
t6
15
ns min
Data Setup Time
t7
4.5
ns min
Data Hold Time
t8
20
ns min
Write to
LDAC Setup Time
t9
20
ns min
LDAC Pulse Width
t10
20
ns min
CLR Pulse Width
NOTES
1Sample tested at +25
°C to ensure compliance. All input signals are specified with tr = tf = 5 ns (10% to 90% of V
DD) and timed from a voltage level of
(VIL + VIH)/2. tr and tf should not exceed 1 µs on any digital input.
2See Figure 1.
A/B
CS
WR
D7–D0
LDAC
CLR
t1
t2
t4
t3
t5
t6
t7
t8
t10
t9
Figure 1. Timing Diagram for Parallel Data Write
(VDD = +2.7 V to +5.5 V; GND = 0 V; Reference = Internal VDD/2 Reference;
all specifications TMIN to TMAX unless otherwise noted)




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