参数资料
| 型号： | CA3140AMZ96 |
| 厂商： | Intersil |
| 文件页数： | 9/23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 |
17
FN957.10
July 11, 2005
Pulse “droop” during the hold interval is 170pA/200pF which is
0.85
V/s; (i.e., 170pA/200pF). In this case, 170pA represents
the typical leakage current of the CA3080A when strobed off. If
C1 were increased to 2000pF, the “hold-droop” rate will
decrease to 0.085
V/s, but the slew rate would decrease to
0.25V/
s. The parallel diode network connected between
Terminal 3 of the CA3080A and Terminal 6 of the CA3140
prevents large input signal feedthrough across the input
terminals of the CA3080A to the 200pF storage capacitor when
the CA3080A is strobed off. Figure 24 shows dynamic
characteristic waveforms of this sample-and-hold system.
Current Amplifier
The low input terminal current needed to drive the CA3140
makes it ideal for use in current amplifier applications such
as the one shown in Figure 25 (see Note 14). In this circuit,
low current is supplied at the input potential as the power
supply to load resistor RL. This load current is increased by
the multiplication factor R2/R1, when the load current is
monitored by the power supply meter M. Thus, if the load
current is 100nA, with values shown, the load current
presented to the supply will be 100
A; a much easier current
to measure in many systems.
Note that the input and output voltages are transferred at the
same potential and only the output current is multiplied by
the scale factor.
The dotted components show a method of decoupling the
circuit from the effects of high output load capacitance and
the potential oscillation in this situation. Essentially, the
necessary high frequency feedback is provided by the
capacitor with the dotted series resistor providing load
decoupling.
Full Wave Rectifier
Figure 26 shows a single supply, absolute value, ideal full-
wave rectifier with associated waveforms. During positive
excursions, the input signal is fed through the feedback
network directly to the output. Simultaneously, the positive
excursion of the input signal also drives the output terminal
(No. 6) of the inverting amplifier in a negative going
excursion such that the 1N914 diode effectively disconnects
the amplifier from the signal path. During a negative going
excursion of the input signal, the CA3140 functions as a
normal inverting amplifier with a gain equal to -R2/R1. When
the equality of the two equations shown in Figure 26 is
satisfied, the full wave output is symmetrical.
NOTE:
14. “Operational Amplifiers Design and Applications”, J. G. Graeme,
McGraw-Hill Book Company, page 308, “Negative Immittance
Converter Circuits”.
Top Trace: Output; 50mV/Div., 200ns/Div.
Bottom Trace: Input; 50mV/Div., 200ns/Div.
Top Trace: Output Signal; 5V/Div, 2
s/Div.
Center Trace: Difference of Input and Output Signals through
Tektronix Amplifier 7A13; 5mV/Div., 2
s/Div.
Bottom Trace: Input Signal; 5V/Div., 2
s/Div.
LARGE SIGNAL RESPONSE AND SETTLING TIME
SAMPLING RESPONSE
Top Trace: Output; 100mV/Div., 500ns/Div.
Bottom Trace: Input; 20V/Div., 500ns/Div.
FIGURE 24. SAMPLE AND HOLD SYSTEM DYNAMIC
CHARACTERISTICS WAVEFORMS
+15V
2
1
100k
0.1
F
-15V
4
5
7
+
CA3140
-
0.1
F
4.3k
10k
6
3
R1
POWER
SUPPLY
10M
R2
IL
R2
R1
M
RL
IL
x
FIGURE 25. BASIC CURRENT AMPLIFIER FOR LOW CURRENT
MEASUREMENT SYSTEMS
CA3140, CA3140A
相关PDF资料 |
PDF描述 |
|---|---|
| 3431-6502UG | CONN HEADER 34PS STR SHORT LATCH |
| 3429-2602UG | CONN HEADER 26POS STR LONG LATCH |
| 3429-2502UG | CONN HEADER 26PS STR SHORT LATCH |
| 65863-213 | QKE HDR 2X30 |
| DIN-096CSC-R1L-KR | CONN DIN SOCKET 96POS VERT GOLD |
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 |
发布紧急采购，3分钟左右您将得到回复。