參數資料
| 型號： | LT1227CS8#TR |
| 廠商： | Linear Technology |
| 文件頁數： | 1/12頁 |
| 文件大?。?/td> | 0K |
| 描述： | IC AMP VID DIFF CURR FDBK 8SOIC |
| 標準包裝： | 2,500 |
| 應用： | 電流反饋 |
| 電路數： | 1 |
| -3db帶寬： | 140MHz |
| 轉換速率： | 1100 V/µs |
| 電流 - 電源： | 10mA |
| 電流 - 輸出 / 通道： | 60mA |
| 電壓 - 電源，單路/雙路(±)： | 4 V ~ 30 V，±2 V ~ 15 V |
| 安裝類型： | 表面貼裝 |
| 封裝/外殼： | 8-SOIC（0.154"，3.90mm 寬） |
| 供應商設備封裝： | 8-SOIC |
| 包裝： | 帶卷 (TR) |
1
LT1227
APPLICATIO S
U
DESCRIPTIO
U
FEATURES
TYPICAL APPLICATIO
U
140MHz Video Current
Feedback Amplifier
s
140MHz Bandwidth: AV = 2, RL = 150
s
1100V/
s Slew Rate
s
Low Cost
s
30mA Output Drive Current
s
0.01% Differential Gain
s
0.01
° Differential Phase
s
High Input Impedance: 14M
, 3pF
s
Wide Supply Range:
±2V to ±15V
s
Shutdown Mode: IS < 250A
s
Low Supply Current: IS = 10mA
s
Inputs Common Mode to Within 1.5V of Supplies
s
Outputs Swing Within 0.8V of Supplies
The LT
1227 is a current feedback amplifier with wide
bandwidth and excellent video characteristics. The low
differential gain and phase, wide bandwidth, and 30mA
output drive current make the LT1227 well suited to drive
cables in video systems.
A shutdown feature switches the device into a high imped-
ance, low current mode, allowing multiple devices to be
connected in parallel and selected. Input to output isola-
tion in shutdown is 70dB at 10MHz for input amplitudes up
to 10VP-P. The shutdown pin interfaces to open collector
or open drain logic and takes only 4
s to enable or disable.
The LT1227 comes in the industry standard pinout and
can upgrade the performance of many older products. For
a dual or quad version, see the LT1229/1230 data sheet.
The LT1227 is manufactured on Linear Technology’s
proprietary complementary bipolar process.
Video Cable Driver
Differential Gain and Phase
vs Supply Voltage
–
+
75
CABLE
VOUT
75
RG
1k
LT1227
75
VIN
VOUT
VIN
= 1
1227 TA01
RF
1k
s
Video Amplifiers
s
Cable Drivers
s
RGB Amplifiers
s
Test Equipment Amplifiers
s
50
Buffers for Driving Mixers
SUPPLY VOLTAGE (
±V)
5
DIFFERENTIAL
PHASE
(DEG)
0.12
0.16
0.20
13
LT1227 TA02
0.08
0.04
0
7
9
11
15
0.12
0.16
0.20
0.08
0.04
0
DIFFERENTIAL
GAIN
(%)
NTSC COMPOSITE
f = 3.58MHz
φ
G
, LTC and LT are registered trademarks of Linear Technology Corporation.
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