参数资料
| 型号： | CA3140M |
| 厂商： | Intersil |
| 文件页数： | 23/23页 |
| 文件大小： | 0K |
| 描述： | IC OP AMP BIMOS 4.5MHZ 8-SOIC |
| 标准包装： | 98 |
| 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： | 5000µV |
| 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： | -55°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： | 管件 |
9
FN957.10
July 11, 2005
the CA3140 is used as a unity gain voltage follower. This
resistance prevents the possibility of extremely large input
signal transients from forcing a signal through the input
protection network and directly driving the internal constant
current source which could result in positive feedback via the
output terminal. A 3.9k
resistor is sufficient.
The typical input current is on the order of 10pA when the
inputs are centered at nominal device dissipation. As the
output supplies load current, device dissipation will increase,
raising the chip temperature and resulting in increased input
current. Figure 7 shows typical input terminal current versus
ambient temperature for the CA3140.
It is well known that MOSFET devices can exhibit slight
changes in characteristics (for example, small changes in
input offset voltage) due to the application of large
differential input voltages that are sustained over long
periods at elevated temperatures.
Both applied voltage and temperature accelerate these
changes. The process is reversible and offset voltage shifts of
the opposite polarity reverse the offset. Figure 9 shows the
typical offset voltage change as a function of various stress
voltages at the maximum rating of 125oC (for metal can); at
lower temperatures (metal can and plastic), for example, at
85oC, this change in voltage is considerably less. In typical
linear applications, where the differential voltage is small and
symmetrical, these incremental changes are of about the
same magnitude as those encountered in an operational
amplifier employing a bipolar transistor input stage.
FIGURE 6. OPEN LOOP VOLTAGE GAIN AND PHASE vs
FREQUENCY
FIGURE 7. INPUT CURRENT vs TEMPERATURE
FIGURE 8. OUTPUT VOLTAGE SWING CAPABILITY AND COMMON MODE INPUT VOLTAGE RANGE vs SUPPLY VOLTAGE
101
103
104
105
106
107
108
FREQUENCY (Hz)
O
PE
N
L
OO
P
V
O
LT
A
G
E
G
AIN
(dB
)
100
80
60
40
20
0
SUPPLY VOLTAGE: VS = ±15V
TA = 25
oC
102
O
PEN
L
OOP
P
H
AS
E
-75
-90
-105
-120
-135
-150
(D
E
G
R
E
ES
)
RL = 2k,
CL = 0pF
RL = 2k,
CL = 100pF
φOL
SUPPLY VOLTAGE: VS = ±15V
TEMPERATURE (oC)
-60
-40
-20
0
20
40
60
80
100
120
140
IN
P
U
T
CURRENT
(
p
A)
1K
100
1
10K
10
SUPPLY VOLTAGE (V+, V-)
0
5
10
15
20
25
-1.5
-2.0
-1.0
-2.5
RL = ∞
+VOUT AT TA = 125
oC
+VOUT AT TA = 25
oC
+VOUT AT TA = -55
oC
+VICR AT TA = 125
oC
+VICR AT TA = 25
oC
+VICR AT TA = -55
oC
-3.0
0
-0.5
INP
U
T
AND
O
UT
P
U
T
V
O
LTA
G
E
EX
C
UR
S
IO
N
S
FR
OM
TERMINAL
7
(V+)
SUPPLY VOLTAGE (V+, V-)
0
5
10
15
20
25
-VICR AT TA = 125
oC
-VICR AT TA = 25
oC
-VICR AT TA = -55
oC
-VOUT FOR
TA = -55
oC to 125oC
INPUT
AN
D
OUTPUT
V
O
L
T
A
G
E
EX
C
URS
ION
S
FR
OM
T
E
RMINAL
4
(V
-)
0
-0.5
0.5
-1.0
-1.5
1.5
1.0
CA3140, CA3140A
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相关代理商/技术参数 |
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| CA3140M96 | 功能描述:IC OP AMP 4.5MHZ BIMOS 8-SOIC RoHS:否 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:1 系列:- 放大器类型:通用 电路数:4 输出类型:满摆幅 转换速率:0.6 V/µs 增益带宽积:1MHz -3db带宽:- 电流 - 输入偏压:2pA 电压 - 输入偏移:1000µV 电流 - 电源:85µA 电流 - 输出 / 通道:20mA 电压 - 电源，单路/双路(±):1.8 V ~ 6 V 工作温度:-40°C ~ 125°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-SOICN 包装:剪切带 (CT) 产品目录页面:680 (CN2011-ZH PDF) 其它名称:MCP6L04T-E/SLCT |
| CA3140MZ | 功能描述:运算放大器 - 运放 OPAMP 4.5MHZ LWBIAS RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| CA3140MZ96 | 功能描述:运算放大器 - 运放 OPAMP 4 5MHZ LWBIAS MILEL RoHS:否 制造商:STMicroelectronics 通道数量:4 共模抑制比（最小值）:63 dB 输入补偿电压:1 mV 输入偏流（最大值）:10 pA 工作电源电压:2.7 V to 5.5 V 安装风格:SMD/SMT 封装 / 箱体:QFN-16 转换速度:0.89 V/us 关闭:No 输出电流:55 mA 最大工作温度:+ 125 C 封装:Reel |
| CA3140MZ96S2705 | 制造商:Intersil Corporation 功能描述:CISCO, CA3140MZ96 W/CONTAINER LABELING - Rail/Tube |
| CA3140R1167 | 制造商:Rochester Electronics LLC 功能描述:- Bulk |
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