参数资料
| 型号： | CA3140AMZ96 |
| 厂商： | Intersil |
| 文件页数： | 6/23页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP 4.5MHZ BIMOS 8-SOIC |
| 标准包装： | 1 |
| 放大器类型： | 通用 |
| 电路数： | 1 |
| 转换速率： | 9 V/µs |
| 增益带宽积： | 4.5MHz |
| 电流 - 输入偏压： | 10pA |
| 电压 - 输入偏移： | 2000µV |
| 电流 - 电源： | 4mA |
| 电流 - 输出 / 通道： | 40mA |
| 电压 - 电源，单路/双路(±)： | 4 V ~ 36 V，±2 V ~ 18 V |
| 工作温度： | -50°C ~ 125°C |
| 安装类型： | 表面贴装 |
| 封装/外壳： | 8-SOIC（0.154"，3.90mm 宽） |
| 供应商设备封装： | 8-SOIC |
| 包装： | 标准包装 |
| 其它名称： | CA3140AMZ96DKR |
14
FN957.10
July 11, 2005
A small heat sink VERSAWATT transistor is used as the
series pass element in the fold back current system, Figure
17, since dissipation levels will only approach 10W. In this
system, the D2201 diode is used for current sampling.
Foldback is provided by the 3k
and 100k divider network
connected to the base of the current sensing transistor.
Both regulators provide better than 0.02% load regulation.
Because there is constant loop gain at all voltage settings, the
regulation also remains constant. Line regulation is 0.1% per
volt. Hum and noise voltage is less than 200
V as read with a
meter having a 10MHz bandwidth.
Figure 18A shows the turn ON and turn OFF characteristics
of both regulators. The slow turn on rise is due to the slow
rate of rise of the reference voltage. Figure 18B shows the
transient response of the regulator with the switching of a
20
load at 20V output.
FIGURE 16. REGULATED POWER SUPPLY
FIGURE 17. REGULATED POWER SUPPLY WITH “FOLDBACK”
CURRENT LIMITING
5V/Div., 1s/Div.
FIGURE 18A. SUPPLY TURN-ON AND TURNOFF
CHARACTERISTICS
Top Trace: Output Voltage;
200mV/Div., 5
s/Div.
Bottom Trace: Collector of load switching transistor, load = 1A;
5V/Div., 5
s/Div.
FIGURE 18B. TRANSIENT RESPONSE
FIGURE 18. WAVEFORMS OF DYNAMIC CHARACTERISTICS OF POWER SUPPLY CURRENTS SHOWN IN FIGURES 16 AND 17
1
3
75
3k
100
2
1k
1k
D2201
CURRENT
LIMITING
ADJUST
2N6385
POWER DARLINGTON
2
1k
1
3
8
2N2102
1k
+30V
INPUT
4
CA3140
7
1
6
5
100k
2
3
180k
56pF
1k
82k
250
F
+
-
0.01
F
100k
14
10
6
9
8
50k
13
5
F
+
-
12
CA3086
2.2k
3
1
5
4
62k
VOLTAGE
ADJUST
10
F
+
-
2.7k
1k
11
7
2
HUM AND NOISE OUTPUT <200
VRMS
(MEASUREMENT BANDWIDTH
~10MHz)
LINE REGULATION 0.1%/V
LOAD REGULATION
(NO LOAD TO FULL LOAD)
<0.02%
OUTPUT
0.1
24V
AT 1A
1
2
1k
200
D2201
“FOLDBACK” CURRENT
LIMITER
2N5294
3k
8
2N2102
1k
+30V
INPUT
4
CA3140
7
1
6
5
100k
2
3
180k
56pF
1k
82k
250
F
+
-
0.01
F
100k
14
10
6
9
8
50k
13
5
F
+
-
12
CA3086
2.2k
3
1
5
4
62k
VOLTAGE
ADJUST
10
F
+
-
2.7k
1k
11
7
2
HUM AND NOISE OUTPUT <200
VRMS
(MEASUREMENT BANDWIDTH
~10MHz)
LINE REGULATION 0.1%/V
LOAD REGULATION
(NO LOAD TO FULL LOAD)
<0.02%
OUTPUT
0V TO 25V
25V AT 1A
3
100k
“FOLDS BACK”
TO 40mA
100k
CA3140, CA3140A
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相关代理商/技术参数 |
参数描述 |
|---|---|
| CA3140AS | 制造商:INTERSIL 制造商全称:Intersil Corporation 功能描述:4.5MHz, BiMOS Operational Amplifier with MOSFET Input/Bipolar Output |
| CA3140AT | 制造商:Harris Corporation 功能描述: 制造商:Rochester Electronics LLC 功能描述: |
| CA3140BT | 制造商:未知厂家 制造商全称:未知厂家 功能描述:BiMOS Operational Amplifier with MOSFET Input/Bipolar Output(886.70 k) |
| CA3140E | 功能描述:IC OPAMP DUAL BIMOS 4.5MHZ 8-DIP RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1,000 系列:- 放大器类型:电压反馈 电路数:4 输出类型:满摆幅 转换速率:33 V/µs 增益带宽积:20MHz -3db带宽:30MHz 电流 - 输入偏压:2nA 电压 - 输入偏移:3000µV 电流 - 电源:2.5mA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):4.5 V ~ 16.5 V，±2.25 V ~ 8.25 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-SOIC（0.154"，3.90mm 宽） 供应商设备封装:14-SOIC 包装:带卷 (TR) |
| CA3140E | 制造商:Intersil Corporation 功能描述:IC OP-AMP SINGLE 8PDIP |
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