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參數(shù)資料
| 型號： | LT1227 |
| 廠商： | Linear Technology Corporation |
| 英文描述： | 140MHz Video Current Feedback Amplifier(140MHz ，視頻電流反饋放大器) |
| 中文描述： | 140MHz的視頻電流反饋放大器（140MHz的視頻電流反饋放大器） |
| 文件頁數(shù)： | 10/12頁 |
| 文件大小： | 280K |
| 代理商： | LT1227 |
10
LT1227
U
S
A
O
PPLICATI
TYPICAL
MUX Amplifier
The shutdown function can be effectively used to con-
struct a MUX amplifier. A two-channel version is shown,
but more inputs could be added with suitable logic. By
configuring each amplifier as a unity-gain follower, there
is no loading by the feedback network when the amplifier
is off. The open drains of the 74C906 buffers are used to
interface the 5V logic to the shutdown pin. Feedthrough
from the unselected input to the output is –70dB at
10MHz. The differential voltage between MUX inputs V
IN1
and V
IN2
appears across the inputs of the shutdown
device, this voltage should be less than
±
5V to avoid
turning on the clamp diodes discussed previously. If the
inputs are sinusoidal having a zero DC level, this implies
that the amplitude of each input should be less than
5V
P-P
. The output impedance of the off amplifier remains
high until the output level exceeds approximately 6V
P-P
at
10MHz, this sets the maximum usable output level. Switch-
ing time between inputs is about 4
μ
s without an external
pullup. Adding a 10k pullup resistor from each shutdown
pin to V
+
will reduce the switching time to 2
μ
s but will
increase the positive supply current in shutdown by 1.5mA.
MUX Amplifier
INPUT
SELECT
V
OUT
MUX Input Crosstalk vs Frequency
FREQUENCY (MHz)
1
–90
I
–80
–70
–60
–50
–40
10
100
LT1227 TA05
5V
74HC04
5V
74C906
–
+
LT1227
1227 TA04
INPUT
SELECT
V
OUT
S/D
–
+
LT1227
15V
–15V
1.5k
5V
74C906
V
IN1
15V
–15V
1.5k
V
IN2
S/D
V
OUT
V
IN
= 1
MUX Output
TA03
V
IN1
= 1V
P-P
, V
IN2
= 0V
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LT1227_06 | 制造商:LINER 制造商全稱:Linear Technology 功能描述:140MHz Video Current Feedback Amplifier |
| LT1227C | 制造商:LINER 制造商全稱:Linear Technology 功能描述:140MHz Video Current Feedback Amplifier |
| LT1227CN8 | 功能描述:IC VIDEO CURRNT FEEDBCK AMP 8DIP RoHS:否 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 標準包裝:1,000 系列:- 應用:驅(qū)動器 輸出類型:差分 電路數(shù):3 -3db帶寬:350MHz 轉(zhuǎn)換速率:1000 V/µs 電流 - 電源:14.5mA 電流 - 輸出 / 通道:60mA 電壓 - 電源，單路/雙路(±):5 V ~ 12 V，±2.5 V ~ 6 V 安裝類型:表面貼裝 封裝/外殼:20-VFQFN 裸露焊盤 供應商設(shè)備封裝:20-QFN 裸露焊盤（4x4） 包裝:帶卷 (TR) |
| LT1227CN8#PBF | 功能描述:IC VIDEO CURRNT FEEDBCK AMP 8DIP RoHS:是 類別:集成電路 (IC) >> 線性 - 放大器 - 視頻放大器和頻緩沖器 系列:- 產(chǎn)品培訓模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標準包裝:50 系列:- 應用:TFT-LCD 面板：VCOM 驅(qū)動器 輸出類型:滿擺幅 電路數(shù):1 -3db帶寬:35MHz 轉(zhuǎn)換速率:40 V/µs 電流 - 電源:3.7mA 電流 - 輸出 / 通道:1.3A 電壓 - 電源，單路/雙路(±):9 V ~ 20 V，±4.5 V ~ 10 V 安裝類型:表面貼裝 封裝/外殼:8-TSSOP，8-MSOP（0.118"，3.00mm 寬）裸露焊盤 供應商設(shè)備封裝:8-uMax-EP 包裝:管件 |
| LT1227CN8PBF | 制造商:Linear Technology 功能描述:LT1227CN8PBF |
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