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參數(shù)資料
| 型號(hào)： | CA3094M |
| 廠商： | INTERSIL CORP |
| 元件分類： | 運(yùn)動(dòng)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)： | 6/14頁 |
| 文件大小： | 241K |
| 代理商： | CA3094M |
3-17
Application Information
For additional application information, refer to
Application Note AN6048, “Some Applications of a
Programmable Power/Switch Amplifier IC” and AN6077
“An IC Operational Transconductance Amplifier (OTA)
with Power Capability”.
Design Considerations
The selection of the optimum amplifier bias current (I
ABC
)
depends on:
1. The Desired Sensitivity - The higher the I
ABC
, the higher
the sensitivity, i.e., a greater drive current capability at the
output for a specific voltage change at the input.
2. Required Input Resistance - The lower the I
ABC
, the high-
er the input resistance.
If the desired sensitivity and required input resistance are
not known and are to be experimentally determined, or the
anticipated equipment design is sufficiently flexible to
tolerate a wide range of these parameters, it is
recommended that the equipment designer begin his
calculations with an I
ABC
of 100
μ
A, since the CA3094 is
characterized at this value of amplifier bias current.
The CA3094 is extremely versatile and can be used in a
wide variety of applications.
FIGURE 9. PHASE COMPENSATION TEST CIRCUIT
FIGURE 10. PRESETTABLE ANALOG TIMER
Test Circuits
(Continued)
CA3094A
2
3
6
1
4
8
5
-15V
51
2k
C
C
56k
7
R
2
-
+
+15V
OUTPUT
R
3
R
C
R
1
CLOSED
LOOP GAIN
(dB)
R
1
(k
)
R
2
(k
)
R
3
(k
)
0
10
∞
10
20
10
1
10
40
1
0.1
10
CA3094A
-
3
2
6
4
5
7
8
+
C
1
D
1
S
1
R
5
R
6
R
7
COMMON
V+ = 30V
120VAC
S
2
R
8
R
1
R
2
R
3
R
4
R
LOAD
E
OUT
MT
1
MT
2
(NOTE 12)
NOTES:
12. C
1
= 0.5
μ
F
D
1
= 1N914
R
1
= 0.51M
= 3 min.
R
2
= 5.1M
R
3
= 22M
= 2 hrs.
R
4
= 44M
= 4 hrs.
R
5
= 1.5k
R
6
= 50k
R
7
= 5.1k
R
8
= 1.5k
13. Potentiometer required for initial time set to permit device inter-
connecting. Time variation with temperature <0.3%/
o
C.
0
0
29V
27V
3V
S
1
3
6
Time = 1 hr.
S
2
Set to R
4
CA3094, CA3094A, CA3094B
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