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參數(shù)資料
| 型號(hào)： | DAC8420QBC |
| 廠商： | ANALOG DEVICES INC |
| 元件分類(lèi)： | DAC |
| 英文描述： | Quad 12-Bit Serial Voltage Output DAC |
| 中文描述： | QUAD, SERIAL INPUT LOADING, 13 us SETTLING TIME, 12-BIT DAC, UUC16 |
| 封裝： | 0.119 X 0.283 INCH, DIE-16 |
| 文件頁(yè)數(shù)： | 10/16頁(yè) |
| 文件大?。?/td> | 587K |
| 代理商： | DAC8420QBC |
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DAC8420
REV. 0
–10–
+31.25mV
–18.75mV
+90.2μs
–9.8μs
+10μs/DIV
t
SETT
ˉ 13μs
LD
0mV
4.88mV
1 LSB
T
A
= +25°C
V
DD
= +15V, V
SS
= –15V
V
VREFHI
= +10V
V
VREFLO
= –10V
Figure 17. Settling Time (+)(
±
15 V)
+43.75mV
–6.25mV
+90.2μs
–9.8μs
+10μs/DIV
t
SETT
ˉ 13μs
–4.88mV
0mV
1 LSB
CLR
T
A
= +25°C
V
DD
= +15V, V
SS
= –15V
V
VREFHI
= +10V
V
VREFLO
= –10V
Figure 18. Settling Time (–)(
±
15 V)
+5V
–5V
–47.6μs
152.4μs
V
μs
+1V
/DIV
0
20μs/DIV
V
μs
SR
RISE
= 1.65
SR
FALL
= 1.17
T
A
= +25°C
V
DD
= +5V, V
SS
= –5V
V
VREFHI
= +2.5V
V
VREFLO
= –2.5V
Figure 19. Slew Rate (
±
5 V)
–20
10
100
10M
1M
100k
10k
1k
FREQUENCY – Hz
–10
0
+10
–30
T
A
= +25°C
V
DD
= +15V, V
SS
= –15V
V
VREFHI
= 0 ± 100mV
V
VREFLO
= –10V
ALL BITS HIGH 200mV p-p
G
Figure 21. Small-Signal Response
+25V
LD
–25V
166.4μs
–33.6μs
+5V
/DIV
0
20μs/DIV
V
μs
SR
RISE
= 1.9
SR
FALL
= 2.02
V
μs
CLR
T
A
= +25°C
V
DD
= +15V, V
SS
= –15V
V
VREFHI
= +10V, V
VREFLO
= –10V
Figure 20. Slew Rate (
±
15 V)
100
10
50
0
100
1k
10k
100k
1M
60
70
80
90
10
20
30
40
T
A
= +25°C
DATA = 000
H
V
DD
= +15V ±1V, V
SS
= –15V
V
VREFHI
= +10V
V
VREFLO
= –10V
P
FREQUENCY – Hz
Figure 22. PSRR vs. Frequency
6
–6
150
0
–4
–2
–75
4
2
75
0
TEMPERATURE – °C
P
I
DD
I
SS
V
DD
= +15V
V
SS
= –15V
V
VREFHI
= +10V
V
= –10V
ALL DACS HIGH (FULL SCALE)
Figure 23. Power Supply Current
vs. Temperature
1
VOUTA THROUGH VOUTD
T
A
= +25
°
C
V
DD
= +15V
V
SS
= –15V
V
VREFHI
= +10V
V
= –10V
DATA = 800
H
5V/DIV
Figure 24. DAC Output Current vs.
VOUTX
10
100
10k
1k
10
8
0
6
4
2
LOAD RESISTANCE –
V
O
T
A
= +25
°
C
V
DD
= +15V
V
SS
= –15V
V
VREFHI
= +10V
V
VREFLO
= –10V
DATA = FFF
H
OR 000
H
Figure 25. Output Swing vs.
Load Resistance
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