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參數(shù)資料
| 型號： | DAC8420QBC |
| 廠商： | ANALOG DEVICES INC |
| 元件分類： | 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 |
| 文件頁數(shù)： | 8/16頁 |
| 文件大?。?/td> | 587K |
| 代理商： | DAC8420QBC |
DAC8420
REV. 0
–8–
Table III. Analog Output Code
DAC Data Word (HEX)
V
OUT
Note
FFF
VREFLO
+
(
VREFHI
–
VREFLO
)
VREFLO
+
(
VREFHI
–
VREFLO
)
4096
×
4095
Full-Scale Output
801
VREFLO
+
(
VREFHI
–
VREFLO
)
4096
×
2049
Midscale + 1
800
VREFLO
+
(
VREFHI
–
VREFLO
)
4096
×
2048
Midscale
7FF
VREFLO
+
(
VREFHI
–
VREFLO
)
4096
×
2047
Midscale – 1
000
4096
×
0
Zero Scale
Typical Performance Characteristics
0.3
–0.3
14
0
–0.2
–4
–0.1
–6
0.2
0.1
12
10
8
6
4
2
0
–2
V
VREFHI
– V
I
T
A
= +25°C
V
DD
= +15V, V
SS
= –15V
V
VREFLO
= –10V
Figure 4. INL vs. VREFHI (
±
15 V)
0.3
–0.3
14
0
–0.2
–4
–0.1
–6
0.2
0.1
12
10
8
6
4
2
0
–2
V
VREFHI
– V
D
T
A
= +25°C
V
DD
= +15V, V
SS
= –15V
V
VREFLO
= –10V
Figure 2. Differential Linearity vs.
VREFHI (
±
15 V)
0.10
–0.30
–0.20
–0.25
1.5
–0.10
–0.15
–0.05
0
0.05
3.5
3.0
2.5
2.0
V
VREFHI
– V
D
T
A
= +25°C
V
DD
= +5V, V
SS
= 0V
V
VREFLO
= 0V
Figure 3. Differential Linearity vs.
VREFHI (+5 V)
0.4
–0.4
–0.2
–0.3
1.5
0
–0.1
0.1
0.2
0.3
3.5
3.0
2.5
2.0
V
VREFHI
– V
I
T
A
= +25°C
V
DD
= +5V, V
SS
= 0V
V
VREFLO
= 0V
Figure 5. INL vs. VREFHI (+5 V)
0.7
–0.5
1000
0.1
–0.3
200
–0.1
0
0.5
0.3
800
600
400
T = HOURS OF OPERATION AT +125
°
C
CURVES NOT NORMALIZED
Figure 6. Full-Scale Error vs.
Time Accelerated by Burn-In
F
L
x + 3
σ
x
x – 3
σ
V
DD
= +15V, V
SS
= –15V
V
VREFHI
= +10V
V
VREFLO
= –10V
1.2
0
1000
0.6
0.2
200
0.4
0
1.0
0.8
800
600
400
T = HOURS OF OPERATION AT +125
°
C
CURVES NOT NORMALIZED
Figure 7. Zero-Scale Error vs.
Time Accelerated by Burn-In
Z
L
x + 3
σ
x
x – 3
σ
V
DD
= +15V, V
SS
= –15V
V
VREFHI
= +10V
V
VREFLO
= –10V
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