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參數(shù)資料
| 型號： | HA-2420 |
| 廠商： | Intersil Corporation |
| 元件分類： | 運動控制電子 |
| 英文描述： | 3.2レs Sample and Hold Amplifiers |
| 中文描述： | 3.2レ樣品買賣和保持放大器 |
| 文件頁數(shù)： | 4/9頁 |
| 文件大?。?/td> | 128K |
| 代理商： | HA-2420 |
5-4
Schematic Diagram
FIGURE 3. DRIFT CURRENT TEST
FIGURE 4. HOLD MODE FEEDTHROUGH ATTENUATION
Test Circuits and Waveforms
(Continued)
OUTPUT
S/H
CONTROL
HOLD
SAMPLE
V
t
NOTE: Measure the slope of the output during hold,
V/
t,
and compute drift current from: I
D
= C
H
V/
t.
IN2
IN1
IN3
IN4
IN5
IN6
IN7
IN8
A2
A1
A0
EN
HI-508A
MUX
OUT
+5V
SINE WAVE
INPUT
S/H CONTROL INPUT
NOTE: Compute hold mode feedthrough attenuation from the formula:
-IN
+IN
OUT
V
O
S/H
CONTROL
HOLD
CAP GND
C
H
V
INP-P
HA-2420/2425
Where V
OUT
HOLD = Peak-to-Peak value of output
sinewave during the hold mode.
Feedthrough Attenuation
20
V
HOLD
IN
----------------------------------
log
=
S/H
CONTROL
GND
R
P
D
1
Q
3
Q
8
Q
7
R
11
Q
12
Q
14
Q
10
Q
13
Q
103
Q
16
Q
105
Q
9
Q
11
Q
82
Q
106
Q
5
Q
17
Q
18
Q
19
Q
15
Q
2
Q
4
Q
6
Q
21
Q
20
Q
22
Q
23
Q
26
Q
25
Q
24
Q
27
R
1
Q
29
R
2
Q
30
Q
31
Q
35
Q
38
R
13
Q
33
Q
34
Q
32
Q
39
Q
40
Q
41
Q
44
Q
43
Q
42
OFFSET ADJ.
Q
56
Q
100
Q
101
Q
55
Q
83
Q
50
Q
48
Q
45
Q
46
Q
51
Q
59
Q
58
R
7
Q
54
Q
53
Q
52
C
4
J
60
Q
64
Q
65
Q
66
V+
C
H
Q
72
Q
73
Q
74
OUT
R
9
R
8
Q
75
C
3
15pF
Q
77
Q
76
Q
68
Q
78
Q
67
Q
69
R
10
Q
70
Q
79
Q
102
V-
-IN
R
14
Q
80
Q
81
Q
71
Q
62
Q
83
Q
91
Q
90
Q
89
Q
87
+IN
Q
47
Q
49
J
61
J
63
J
57
GND
R
121
J
86
HA-2420, HA-2425
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