参数资料
| 型号： | CA3130E |
| 厂商： | Intersil |
| 文件页数： | 5/17页 |
| 文件大小： | 0K |
| 描述： | IC OPAMP BIMOS SGL 15MHZ 8-DIP |
| 标准包装： | 50 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 转换速率： | 30 V/µs |
| 增益带宽积： | 15MHz |
| 电流 - 输入偏压： | 5pA |
| 电压 - 输入偏移： | 8000µV |
| 电流 - 电源： | 10mA |
| 电流 - 输出 / 通道： | 45mA |
| 电压 - 电源，单路/双路(±)： | 5 V ~ 16 V，±2.5 V ~ 8 V |
| 工作温度： | -55°C ~ 125°C |
| 安装类型： | 通孔 |
| 封装/外壳： | 8-DIP（0.300"，7.62mm） |
| 供应商设备封装： | 8-PDIP |
| 包装： | 管件 |
| 其它名称： | CA3130 |
13
The heart of the frequency-determining system is an
operational-transconductance-amplifier (OTA) (see Note 10),
lC1, operated as a voltage-controlled current-source. The
output, IO, is a current applied directly to the integrating
capacitor, C1, in the feedback loop of the integrator lC2, using
a CA3130, to provide the triangular-wave output.
Potentiometer R2 is used to adjust the circuit for slope
symmetry of positive-going and negative-going signal
excursions.
Another CA3130, IC3, is used as a controlled switch to set the
excursion limits of the triangular output from the integrator
circuit. Capacitor C2 is a “peaking adjustment” to optimize the
high-frequency square-wave performance of the circuit.
Potentiometer R3 is adjustable to perfect the “amplitude
symmetry” of the square-wave output signals. Output from
the threshold detector is fed back via resistor R4 to the input
of lC1 so as to toggle the current source from plus to minus
in generating the linear triangular wave.
Operation with Output-Stage Power-Booster
The current-sourcing and-sinking capability of the CA3130
output stage is easily supplemented to provide power-boost
capability. In the circuit of Figure 17, three CMOS transistor-
pairs in a single CA3600E (see Note 12) lC array are shown
parallel connected with the output stage in the CA3130. In the
Class A mode of CA3600E shown, a typical device consumes
20mA of supply current at 15V operation. This arrangement
boosts the current-handling capability of the CA3130 output
stage by about 2.5X.
The amplifier circuit in Figure 17 employs feedback to
establish a closed-loop gain of 48dB. The typical large-signal
bandwidth (-3dB) is 50kHz.
NOTE:
9. See file number 619 for technical information.
7
4
6
3
2
R1
100k
R2
100k
R3
100k
ON-PERIOD
ADJUST
1M
2k
2k
OFF-PERIOD
ADJUST
1M
+15V
0.01
F
OUTPUT
2k
0.001
F
0.01
F
0.1
F
1
F
S1
CA3130
+
-
FIGURE 15. PULSE GENERATOR (ASTABLE MULTIVIBRATOR)
WITH PROVISIONS FOR INDEPENDENT CONTROL
OF “ON” AND “OFF” PERIODS
FREQUENCY RANGE:
POSITION OF S1
0.001
F
0.01
F
0.1
F
1
F
PULSE PERIOD
4
s to 1ms
40
s to 10ms
0.4ms to 100ms
4ms to 1s
NOTE:
10. See file number 475 and AN6668 for technical information.
FIGURE 16. FUNCTION GENERATOR (FREQUENCY CAN BE VARIED 1,000,000/1 WITH A SINGLE CONTROL)
6
3
2
1
4
7
5
6
2
3
4
7
8
1
5
4
6
7
3
2
R4
270k
+7.5V
VOLTAGE-CONTROLLED
CURRENT SOURCE
IC1
3k
3k
10M
+7.5V
R2
100k
SLOPE
SYMMETRY
ADJUST
VOLTAGE
CONTROLLED
INPUT
-7.5V
10k
10k
R1
-7.5V
FREQUENCY
ADJUST
(100kHz MAX)
-7.5V
+7.5V
IO
IC2
+7.5V
C1
100pF
INTEGRATOR
-7.5V
56pF
CA3130
+
-
CA3080A
+
-
39k
3 - 30pF
C2
ADJUST
HIGH - FREQ.
DETECTOR
THRESHOLD
150k
IC3
+7.5V
CA3130
+
-
R3
100k
AMPLITUDE
SYMMETRY
ADJUST
22k
-7.5V
(NOTE 10)
CA3130, CA3130A
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