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参数资料
| 型号： | LT1395CS8#TRPBF |
| 厂商： | Linear Technology |
| 文件页数： | 3/20页 |
| 文件大小： | 0K |
| 描述： | IC AMP CURR FEEDBACK SGL 8SOIC |
| 标准包装： | 2,500 |
| 放大器类型： | 电流反馈 |
| 电路数： | 1 |
| 转换速率： | 800 V/µs |
| -3db带宽： | 400MHz |
| 电流 - 输入偏压： | 10µA |
| 电压 - 输入偏移： | 1000µV |
| 电流 - 电源： | 4.6mA |
| 电流 - 输出 / 通道： | 80mA |
| 电压 - 电源，单路/双路(±)： | 4 V ~ 12 V，±2 V ~ 6 V |
| 工作温度： | 0°C ~ 70°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-SO |
| 包装： | 带卷 (TR) |
LT1395/LT1396/LT1397
11
139567fd
operation, it is important to keep the EN pin at least 3V
below the V+ supply. If a V+ of less than 3V is desired,
and the amplier will remain enabled at all times, then
the EN pin should be tied to the V– supply. The enable pin
current is approximately 30μA when activated. If using
CMOS open-drain logic, an external 1k pull-up resistor
is recommended to ensure that the LT1395CS6 remains
disabled in spite of any CMOS drain leakage currents.
The enable/disable times are very fast when driven from
standard 5V CMOS logic. The LT1395CS6 enables in about
30ns (50% point to 50% point) while operating on ±5V
supplies (Figure 2). Likewise, the disable time is approxi-
mately 40ns (50% point to 50% point) (Figure 3).
APPLICATIONS INFORMATION
Figure 4. Buffered RGB to Color-Difference Matrix
–
+
A2
1/4 LT1397
–
+
A3
1/4 LT1397
–
+
A1
1/4 LT1397
R7
255Ω
R6
127Ω
R5
255Ω
R10
2320Ω
R9
432Ω
R11
82.5Ω
R
G
B
R12
90.9Ω
R13
76.8Ω
ALL RESISTORS 1%
VS = ±5V
R8
845Ω
75Ω
SOURCES
R1
255Ω
R2
255Ω
R4
255Ω
R3
255Ω
B-Y
Y
R-Y
1395/6/7 F04
–
+
A4
1/4 LT1397
Differential Input Signal Swing
To avoid any breakdown condition on the input transis-
tors, the differential input swing must be limited to ± 5V.
In normal operation, the differential voltage between the
input pins is small, so the ±5V limit is not an issue.
Buffered RGB to Color-Difference Matrix
An LT1397 can be used to create buffered color-difference
signals from RGB inputs (Figure 4). In this application,
the R input arrives via 75Ω coax. It is routed to the non-
inverting input of LT1397 amplier A1 and to a 845Ω
resistor R8. There is also an 82.5Ω termination resistor
R11, which yields a 75Ω input impedance at the R input
when considered in parallel with R8. R8 connects to
the inverting input of a second LT1397 amplier (A2),
which also sums the weighted G and B inputs to create a
–0.5 Y output. LT1397 amplier A3 then takes the
–0.5 Y output and amplies it by a gain of –2, resulting
in the Y output. Amplier A1 is congured in a noninvert-
ing gain of 2 with the bottom of the gain resistor R2 tied
to the Y output. The output of amplier A1 thus results
in the color-difference output R-Y.
The B input is similar to the R input. It arrives via 75Ω
coax, and is routed to the noninverting input of LT1397
amplier A4, and to a 2320Ω resistor R10. There is also
a 76.8Ω termination resistor R13, which yields a 75Ω
VS = ±5V
VIN = 1V
RF = 255Ω
RG = 255Ω
RL = 100Ω
1395/6/7 F02
OUTPUT
EN
VS = ±5V
VIN = 1V
RF = 255Ω
RG = 255Ω
RL = 100Ω
1395/6/7 F03
OUTPUT
EN
Figure 2. Amplier Enable Time, AV = 2
Figure 3. Amplier Disable Time, AV = 2
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相关代理商/技术参数 |
参数描述 |
|---|---|
| LT1396 | 制造商:LINER 制造商全称:Linear Technology 功能描述:Single/Dual Programmable Supply Current |
| LT1396CDD | 功能描述:IC AMP CURRNT FEEDBCK DUAL 8DFN 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:0.028 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 |
| LT1396CDD#PBF | 功能描述:IC AMP CURRNT FEEDBCK DUAL 8DFN 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 |
| LT1396CDD#TR | 功能描述:IC AMP CUR FDBK DUAL 400MHZ 8DFN 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) |
| LT1396CDD#TRPBF | 功能描述:IC AMP CURRNT FEEDBCK DUAL 8DFN RoHS:是 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) |
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