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參數(shù)資料
| 型號： | CA3094M |
| 廠商： | INTERSIL CORP |
| 元件分類： | 運動控制電子 |
| 英文描述： | 30MHz, High Output Current Operational Transconductance Amplifier (OTA) |
| 中文描述： | OP-AMP, 5000 uV OFFSET-MAX, 30 MHz BAND WIDTH, PDSO8 |
| 封裝： | SOIC-8 |
| 文件頁數(shù)： | 7/14頁 |
| 文件大小： | 241K |
| 代理商： | CA3094M |
3-18
Typical Applications
NOTE: In single-ended output operation, the CA3094 may require a pull up or pull down resistor.
FIGURE 11A. INVERTING OP AMP
FIGURE 11B. NON-INVERTING MODE, AS A FOLLOWER
FIGURE 11. APPLICATION OF THE CA3094
FIGURE 12. RC TIMER
FIGURE 13. RC TIMER TRIGGERED BY EXTERNAL NEGATIVE PULSE
CA3094
-
+
E
IN
E
OUT
(NOTE)
Z
1
Z
2
CA3094
-
+
E
IN
E
OUT
(NOTE)
Where E
OUT
= E
IN
here
depends on the characteristics of Z
1
and Z
2
-----------------
f
------
=
CA3094
-
2
3
6
4
8
5
7
+
R
2
220k
R
1
100k
R
A
12V
E
OUT
2k
PULL UP
R
ABC
220k
I
I
1N914
S
1
V+ = 18V
+18
0
0
2/3V+
VOLTAGE A
VOLTAGE AT
TERMINAL 8
TIME DELAY (s) = RC (APPROX.)
Problem: To calculate the maximum value of R required to
switch a 100mA output current comparator
Given:
I
I
= 500nA at I
ABC
= 100
μ
A (from Figure 3)
I
I
= 5
μ
A can be determined by drawing a line on Figure 3 through
I
ABC
= 100
μ
A and I
B
= 500nA parallel to the typical T
A
o
C
curve.
Then: I
I
= 33nA at I
ABC
= 5
μ
A
Ratio of I
I
at T
A
= 25
o
C to I
I
at T
A
= -55
o
C for any given value
of I
ABC
IABC
5
μ
A,
=
RABC
3.6M
A
-----------
≈
=
RMAX
-----------–
180M
at TA
25
o
C
=
=
=
RMAX
180M
2 3
×
120M
at TA
55
o
C
–
=
=
=
C
CA3094
-
3
2
4
5
7
8
+
R
3
1M
R
1
1M
6
R
2
2.2M
R
LOAD
2k
C
1
0.5
μ
F
E
OUT
E
100
k
270
k
100
k
100
k
100
k
INPUT
A
12V
DC
0.01
μ
F
B
C
V+
220k
On a negative going transient at input (A), a negative
pulse at C will turn “on” the CA3094, and the output (E)
will go from a low to a high level.
At the end of the time constant determined by C
1
, R
1
,
R
2
, R
3
, the CA3094 will return to the “off” state and the
output will be pulled low by R
LOAD
. This condition will
be independent of the interval when input (A) returns
to a high level.
V+
0
0
0
0
0
V+
3
/
4
V+
A
B
C
D
E
D
1N914
CA3094, CA3094A, CA3094B
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