ADG428 Просмотр технического описания (PDF) - Analog Devices
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ADG428 Datasheet PDF : 12 Pages
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ADG428/ADG429
TIMING DIAGRAMS
3V
WR
50%
50%
0V
3V
A0, A1, (A2)
EN
0V
tW
tS
tH
2V
0.8V
Figure 1.
Figure 1 shows the timing sequence for latching the switch
address and enable inputs. The latches are level sensitive; there-
fore, while WR is held low, the latches are transparent and the
switches respond to the address and enable inputs. This input
data is latched on the rising edge of WR.
3V
RS
50%
50%
0V
tRS
tOFF (RS)
VO
SWITCH
OUTPUT
0V
0.8VO
Figure 2.
Figure 2 shows the Reset Pulsewidth, tRS, and the Reset Turnoff
Time, tOFF, (RS).
Note: All digital input signals rise and fall times are measured
from 10% to 90% of 3 V. tr = tf = 20 ns.
Typical Characteristics
140
TA = +25؇C
130
120
110
VDD = +5V
VSS = –5V
100
90
80
VDD = +15V
70 VSS = –15V
60
VDD = +12V
VSS = –12V
VDD = +10V
VSS = –10V
50
40
–15
–10
–5
0
5
VD (VS) – Volts
10
15
Figure 3. RON as a Function of VD (VS): Dual Supply
Voltage
600
550
500
450
400
350
300
250
200
150
100
50
00
VDD = +5V
VSS = 0V
TA = +25؇C
VDD = +10V
VSS = 0V VDD = +15V
VSS = 0V
VDD = +12V
VSS = 0V
3
6
9
12
15
VD (VS) – Volts
Figure 5. RON as a Function of VD (VS): Single Supply
Voltage
80
VDD = +15V
75
VSS = –15V
70
65
60
55
+125؇C
+85؇C
50
45
+25؇C
40
–15
–10
–5
0
5
VD (VS) – Volts
10
15
Figure 4. RON as a Function of VD (VS) for Different
Temperatures
160
VDD = +12V
150
VSS = 0V
140
130
120
+125؇C
110
100
+85؇C
90
+25؇C
80
70
60
0
2
4
6
8
10
15
VD (VS) – Volts
Figure 6. RON as a Function of VD (VS) for Different
Temperatures
–6–
REV. C
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