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參數(shù)資料
| 型號： | LT1397CS#TR |
| 廠商： | Linear Technology |
| 文件頁數(shù)： | 13/20頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP CURR FEEDBACK QUAD 14SOIC |
| 標(biāo)準(zhǔn)包裝： | 2,500 |
| 放大器類型： | 電流反饋 |
| 電路數(shù)： | 4 |
| 轉(zhuǎn)換速率： | 800 V/µs |
| -3db帶寬： | 400MHz |
| 電流 - 輸入偏壓： | 10µA |
| 電壓 - 輸入偏移： | 1000µV |
| 電流 - 電源： | 4.6mA |
| 電流 - 輸出 / 通道： | 80mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 12 V，±2 V ~ 6 V |
| 工作溫度： | 0°C ~ 70°C |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 14-SOIC（0.154"，3.90mm 寬） |
| 供應(yīng)商設(shè)備封裝： | 14-SO |
| 包裝： | 帶卷 (TR) |
LT1395/LT1396/LT1397
20
139567fd
Linear Technology Corporation
1630 McCarthy Blvd., Milpitas, CA 95035-7417
(408) 432-1900 ● FAX: (408) 434-0507 ● www.linear.com
LINEAR TECHNOLOGY CORPORATION 1999
LT 0709 REV D PRINTED IN USA
RELATED PARTS
TYPICAL APPLICATION
PART NUMBER
DESCRIPTION
COMMENTS
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LT6559
Low Cost Triple Current Feedback Ampliers
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QFN Package
Single Supply RGB Video Amplier
The LT1395 can be used with a single supply voltage of
6V or more to drive ground-referenced RGB video. In
Figure 6, two 1N4148 diodes D1 and D2 have been placed
in series with the output of the LT1395 amplier A1 but
within the feedback loop formed by resistor R8. These
diodes effectively level-shift A1’s output downward by 2
diodes, allowing the circuit output to swing to ground.
Amplier A1 is used in a positive gain conguration.
The feedback resistor R8 is 255Ω. The gain resistor
is created from the parallel combination of R6 and R7,
giving a Thevenin equivalent 63.5Ω connected to 3.75V.
This gives an AC gain of + 5 from the noninverting input
of amplier A1 to the cathode of D2. However, the video
input is also attenuated before arriving at A1’s positive
input. Assuming a 75Ω source impedance for the signal
driving VIN, the Thevenin equivalent signal arriving at A1’s
positive input is 3V + 0.4VIN, with a source impedance
of 714Ω. The combination of these two inputs gives an
output at the cathode of D2 of 2 VIN with no additional
DC offset. The 75Ω back termination resistor R9 halves
the signal again such that VOUT equals a buffered ver-
sion of VIN.
It is important to note that the 4.7μF capacitor C1 has
been added to provide enough current to maintain the
voltage drop across diodes D1 and D2 when the circuit
output drops low enough that the diodes might other-
wise turn off. This means that this circuit works ne for
continuous video input, but will require that C1 charge
up after a period of inactivity at the input.
–
+
A1
LT1395
D1
1N4148
C1
4.7μF
D2
1N4148
R9
75Ω
R8
255Ω
VS
6V TO 12V
R7
255Ω
R5
2.32Ω
R4
75Ω
VIN
R2
1300Ω
R1
1000Ω
5V
R6
84.5Ω
R3
160Ω
VOUT
1395/6/7 TA03
Figure 6. Single Supply RGB Video Amplier (1 of 4 Channels)
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| LT1397CS-TRPBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single/Dual/Quad 400MHz Current Feedback Amplifier |
| LT1397HDE | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single/Dual/Quad 400MHz Current Feedback Amplifier |
| LT1397HDE#PBF | 功能描述:IC AMP CURR FEEDBACK QUAD 14-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| LT1397HDE#TRPBF | 功能描述:IC AMP CURR FEEDBACK QUAD 14-DFN RoHS:是 類別:集成電路 (IC) >> Linear - Amplifiers - Instrumentation 系列:- 標(biāo)準(zhǔn)包裝:50 系列:LinCMOS™ 放大器類型:通用 電路數(shù):4 輸出類型:- 轉(zhuǎn)換速率:0.05 V/µs 增益帶寬積:110kHz -3db帶寬:- 電流 - 輸入偏壓:0.7pA 電壓 - 輸入偏移:210µV 電流 - 電源:57µA 電流 - 輸出 / 通道:30mA 電壓 - 電源，單路/雙路(±):3 V ~ 16 V，±1.5 V ~ 8 V 工作溫度:-40°C ~ 85°C 安裝類型:表面貼裝 封裝/外殼:14-SOIC（0.154"，3.90mm 寬） 供應(yīng)商設(shè)備封裝:14-SOIC 包裝:管件 產(chǎn)品目錄頁面:865 (CN2011-ZH PDF) 其它名稱:296-1834296-1834-5 |
| LT1397HDE-PBF | 制造商:LINER 制造商全稱:Linear Technology 功能描述:Single/Dual/Quad 400MHz Current Feedback Amplifier |
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