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參數(shù)資料
| 型號： | CA5160M96 |
| 廠商： | HARRIS SEMICONDUCTOR |
| 元件分類： | 運動控制電子 |
| 英文描述： | 4MHz, BiMOS Microprocessor Operational Amplifiers with MOSFET Input/CMOS Output |
| 中文描述： | OP-AMP, 15000 uV OFFSET-MAX, 4 MHz BAND WIDTH, PDSO8 |
| 文件頁數(shù)： | 14/18頁 |
| 文件大小： | 910K |
| 代理商： | CA5160M96 |
3-14
Function Generator
A function generator having a wide tuning range is shown in
Figure 12. The adjustment range, in excess of 1,000,000/1, is
accomplished by a single potentiometer. Three operational
amplifiers are utilized: a CA5160 as a voltage follower, a CA3080
as a high-speed comparator, and a second CA3080A as a
programmable current source. Three variable capacitors C
1
, C
2
,
and C
3
shape the triangular signal between 500kHz and 1MHz.
Capacitors C
4
, C
5
, and the trimmer potentiometer in series with
C
5
maintain essentially constant (
±
10%) amplitude up to 1MHz.
Staircase Generator
Figure 13 shows a staircase generator circuit utilizing three
CMOS operational amplifiers. Two CA5130s are used; one as a
multivibrator, the other as a hysteresis switch. The third ampli-
fier, a CA5160, is used as a linear staircase generator.
STAIRCASE
OUTPUT
2V STEPS
COMPARATOR
OSCILLATOR
Top Trace: Staircase Output 2V Steps
Center Trace: Comparator
Bottom Trace: Oscillator
FIGURE 13B. STAIRCASE GENERATOR WAVEFORM
FIGURE 13. STAIRCASE GENERATOR CIRCUIT UTILIZING
THREE CMOS OPERATIONAL AMPLIFIERS
4
1
7
CA5160
-
+
6
10M
+15V
100k
10k
5
2
4
6
7
CA3140
+
-
3
1M
M
9.9k
5.6k
500-0-500
μ
A
-15V
560k
9.1k
500
100
+15V
10G
10pF
0.1
μ
F
2
0.1
μ
F
3
-15V
FIGURE 14. CURRENT-TO-VOLTAGE CONVERTER TO PROVIDE A PICOAMMETER WITH
±
3pA FULL SCALE DEFLECTION
FIGURE 15A. SAMPLE AND HOLD CIRCUIT
4
1
7
CA5160
-
+
1M
+15V
100k
5
9.1k
2
0.1
μ
F
3
8
6
0.1
μ
F
2
6
3
4
CA3080A
+
-
7
5
2
3
4
CA3140
+
-
7
6
+15V
0.1
μ
F
39k
2200pF
8.2
1M
100k
27k
STROBE INPUT
500
μ
A
DROOP
ZERO
ADJUST
SAMPLE -
HOLD -
15V
0V
100k
30pF
39k
0.1
μ
F
1N914
OFFSET
VOLTAGE
ADJUST
8.2k
2k
+15V
CA5160
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|---|---|
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