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參數(shù)資料
| 型號： | CA3060 |
| 廠商： | Intersil Corporation |
| 元件分類： | 運動控制電子 |
| 英文描述： | 110kHz, Operational Transconductance Amplifier Array |
| 中文描述： | 110kHz，運算跨導放大器陣列 |
| 文件頁數(shù)： | 9/12頁 |
| 文件大小： | 193K |
| 代理商： | CA3060 |
3-9
Typical Applications
Having determined the operating points of the CA3060
amplifiers, they can now function in the same manner as
conventional op amps, and thus, are well suited for most op
amp applications, including inverting and non-inverting
amplifiers, integrators, differentiators, summing amplifiers
etc.
Tri-Level Comparator
Tri-level comparator circuits are an ideal application for the
CA3060 since it contains the requisite three amplifiers. A tri-
level comparator has three adjustable limits. If either the
upper lower limit is exceeded, the appropriate output is
activated until the input signal returns to a selected
intermediate limit. Tri-level comparators are particularly
suited to many industrial control applications.
Circuit Description
Figure 23 shows the block diagram of a tri-level comparator
using the CA3060. Two of the three amplifiers are used to
compare the input signal with the upper limit and lower limit
reference voltages. The third amplifier is used to compare
the input signal with a selected value of intermediate limit
reference voltage. By appropriate selection of resistance
ratios this intermediate limit may be set to any voltage
between the upper limit and lower limit values. The output of
the upper limit and lower limit comparator sets the corre-
sponding upper or lower limit flip-flop. The activated flip-flop
retains its state until the third comparator (intermediate limit)
in the CA3060 initiates a reset function, thereby indicating
that the signal voltage has returned to the intermediate limit
selected. The flip-flops employ two CA3086 transistor array
ICs, with circuitry to provide separate “SET” and “POSITIVE
OUTPUT” terminals.
V+ = 6V
LOAD
10K
4.7K
8
Q
1
100
6
7
5.1K
5
1
3
2
4
150K
9
11
10
12
13
14
V+ = 6V
LOAD
4.7K
10K
8
Q
2
100
6
7
150K
5
1
3
2
4
5.1K
9
11
10
14
12
13
SATURATES WHEN
LOWER LIMIT IS
EXCEEDED
LOWER LIMIT
FLIP-FLOP
UPPER LIMIT
FLIP-FLOP
CA3086
CA3086
SATURATES WHEN
UPPER LIMIT IS
EXCEEDED
9
SET
WHEN
LOWER
LIMIT IS
EXCEEDED
4
5
-
+
1/3
CA3060
5.1K
5.1K
-
+
1/3
CA3060
RESET
7
WHEN INTERMEDIATE REFERENCE
LIMIT IS EXCEEDED
WHEN
UPPER
LIMIT IS
EXCEEDED
SET
LOWER LIMIT
REFERENCE
VOLTAGE
E
L
R
10K
11
12
INTERMEDIATE LIMIT
REFERENCE VOLTAGE
E
U
- E
L
2
5.1K
R
10K
-
+
1/3
CA3060
13
14
16
UPPER LIMIT
REFERENCE
VOLTAGE
E
U
5.1K
5.1K
13K
V+ = 6V
INPUT SIGNAL
(E
S
)
R
2
1K
6
10
I
ABC
I
ABC
15
I
ABC
REGULATOR
IN CA3060
2
8
25K
1
20K
V- = -6V
3
V+ = 6V
NOTES:
9. Items in dashed boxes are external to the CA3086.
All resistance values are in ohms.
R
1
1K
10.
ES
-------------------
–
<
Q
1
(OFF), Q
2
(OFF)
=
E
S
E
L
E
U
E
U
Q
1
(ON), Q
2
(OFF)
Q
2
(ON), Q
1
(OFF)
=
>
=
<
FIGURE 22. TRI-LEVEL COMPARATOR CIRCUIT
CA3060
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