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参数资料
| 型号： | LT1256CS#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 5/24页 |
| 文件大小： | 0K |
| 描述： | IC AMP VIDEO FADE CONTRLD 14SOIC |
| 标准包装： | 2,500 |
| 应用： | 电流反馈 |
| 电路数： | 1 |
| -3db带宽： | 40MHz |
| 转换速率： | 300 V/µs |
| 电流 - 电源： | 14.5mA |
| 电流 - 输出 / 通道： | 40mA |
| 电压 - 电源，单路/双路(±)： | 5 V ~ 30 V，±2.5 V ~ 15 V |
| 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) |
13
LT1251/LT1256
APPLICATIONS INFORMATION
WU
U
In low gain applications, R1 and R2 are small compared to
the feedback resistors and therefore we can simplify the
equation to:
V
KV
RR
KV
RR
sR C
R
K
R
K
R
O
GF
OL
F
=
()( )
+
()
()( )
+
++
()
1
11
2
22
12
1
Note that the denominator causes a gain error due to the
open-loop gain (typically 0.1% for frequencies below
20kHz) and for mismatches in RF1 and RF2. A 1% mis-
match in the feedback resistors results in a 0.25% error at
K = 0.5.
If we set RF1 = RF2 and assume ROL >> RF1 (a 0.1% error
at low frequencies) the above equation simplifies to:
and
VKV A
K V A
where A
R
A
R
OV
V
F
G
V
F
G
=+
()
=+
11
2
1
2
1
11
This shows that the output fades linearly from input 2,
times its gain, to input 1, times its gain, as K goes from
0 to 1.
If only one input is used (for example, V1) and Pin 14 is
grounded, then the gain is proportional to K.
V
KA
O
V
1
=
Similarly for the inverting case where the noninverting
inputs are grounded and the input voltages V1 and V2 drive
the normally grounded ends of RG1 and RG2, we get:
General Equation for the Inverting Amplifier Case
V
KV
RR
R
KV
RR
R
sR C
R
K
RR
R
K
RR
R
O
G
F
G
F
OL
F
G
F
G
=
++
+
()
++
+
++
+
()
++
1
11
1
2
22
2
11
1
22
2
1
Note that the denominator is the same as the noninverting
case. In low gain applications, R1 and R2 are small
compared to the feedback resistors and therefore we can
simplify the equation to:
V
KV
R
KV
R
sR C
R
K
R
K
R
O
GG
OL
F
=
+
()
+
++
()
1
2
12
1
Again, if we set RF1 = RF2 and assume ROL >> RF1 (a 0.1%
error at low frequencies) the above equation simplifies to:
and
VKV A
K V A
where A
R
A
R
OV
V
F
G
V
F
G
=
+
()
[]
==
11
2
1
2
1
The 4-resistor difference amplifier yields the same result
as the inverting amplifier case, and the common mode
rejection is independent of K.
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1259 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Low Cost Dual and Triple 130MHz Current Feedback Amplifiers with Shutdown |
| LT1259CN | 制造商:Linear Technology 功能描述:AMP DUAL CURRENT F/BACK 1259 DIP |
| LT1259CN#PBF | 功能描述:IC AMP W/SHUTDOWN DUAL 14-DIP RoHS:是 类别:集成电路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 标准包装:50 系列:LinCMOS™ 放大器类型:通用 电路数:4 输出类型:- 转换速率:0.05 V/µs 增益带宽积:110kHz -3db带宽:- 电流 - 输入偏压:0.7pA 电压 - 输入偏移:210µV 电流 - 电源:57µA 电流 - 输出 / 通道:30mA 电压 - 电源，单路/双路(±):3 V ~ 16 V，±1.5 V ~ 8 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:管件 产品目录页面:865 (CN2011-ZH PDF) 其它名称:296-1834296-1834-5 |
| LT1259CS | 功能描述:IC AMP W/SHUTDOWN DUAL 14-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 |
| LT1259CS#PBF | 功能描述:IC AMP W/SHUTDOWN DUAL 14-SOIC RoHS:是 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:0.028 V/µs 增益带宽积:105kHz -3db带宽:- 电流 - 输入偏压:3nA 电压 - 输入偏移:100µV 电流 - 电源:3.3µA 电流 - 输出 / 通道:12mA 电压 - 电源，单路/双路(±):2.7 V ~ 12 V，±1.35 V ~ 6 V 工作温度:-40°C ~ 85°C 安装类型:表面贴装 封装/外壳:14-TSSOP（0.173"，4.40mm 宽） 供应商设备封装:14-TSSOP 包装:剪切带 (CT) 其它名称:OP481GRUZ-REELCT |
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