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HFA1149_04

更新时间： 2024-09-17 04:21:31
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英特矽尔 - INTERSIL 运算放大器
页数 文件大小 规格书
13页 350K
描述
450MHz, Low Power, Video Operational Amplifier with Programmable Output Disable

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HFA1149_04 数据手册

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HFA1149  
®
Augus t 2004  
FN4304.4  
450MHz, Low Power, Video Operational  
Amplifier with Programmable Output  
Dis able  
Features  
• Wide - 3dB Bandwidth (A = +2) . . . . . . . . . . . . . 450MHz  
V
• Gain Flatness (To 250MHz). . . . . . . . . . . . . . . . . . . 0.8dB  
The HFA1149 is a high speed, low power, current feedback  
amplifier built with Intersil’s proprietary complementary  
bipolar UHF-1 process. This amplifier features a unique  
combination of power and performance specifically tailored  
for video applications.  
• Very Fast Slew Rate (A = +2) . . . . . . . . . . . . . 1100V/µs  
V
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . 1.7MΩ  
• Differential Gain/Phase . . . . . . . . . . 0.02%/0.02 Degrees  
• Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . . 10mA  
• Fast Output Disable/Enable . . . . . . . . . . . . . . . .12ns/20ns  
The HFA1149 incorporates an output disable pin which is  
TTL/CMOS compatible, and user programmable for polarity  
(active high or low). This feature eliminates the inverter  
required between amplifiers in multiplexer configurations.  
The ultra-fast (12ns/20ns) disable/enable times make the  
HFA1149 the obvious choice for pixel switching and other  
high speed multiplexing applications. The HFA1149 is a high  
performance, pin compatible upgrade for the popular HA-5020  
and HFA1145, as well as the CLC410.  
Applications  
• Professional Video Processing  
• Video Switchers and Routers  
• Medical Imaging  
• PC Multimedia Systems  
• Video Pixel Switching  
• Video Distribution Amplifiers  
• Flash Converter Drivers  
• Radar/IF Processing  
For a comparably performing op amp without an output  
disable, please refer to the HFA1109 data sheet.  
Part # Information  
PART NUMBER  
(BRAND)  
TEMP.  
RANGE ( C)  
PKG.  
NO.  
o
PACKAGE  
8 Ld SOIC  
HFA1149 PIN DESCRIPTIONS  
HFA1149IB  
(H1149)  
-40 to 85  
M8.15  
PIN NAME  
DESCRIPTION  
HFA11XXEVAL  
DIP Evaluation Board for High Speed  
Op Amps  
Threshold Set Optional Logic Threshold Set. Maintains disable  
pin TTL compatibility with asymmetrical supplies  
(e.g., +10V, 0V).  
Pinout  
Polarity Set  
Defines Polarity of Disable Input. High or floating  
selects active low disable (i.e., DIS).  
HFA1149  
(SOIC)  
TOP VIEW  
DIS/DIS  
TTL Compatible Disable Input. Output is driven to  
a true Hi-Z state when active. Polarity depends on  
state of Polarity Set Pin.  
THRESHOLD SET  
1
2
3
4
8
7
6
5
DIS / DIS  
V+  
-IN  
+IN  
V-  
HFA1149 DISABLE FUNCTIONALITY  
-
+
OUT  
POLARITY SET  
(PIN 5)  
DISABLE (PIN 8)  
High or Float  
Low  
OUTPUT (PIN 6)  
Enabled  
POLARITY SET  
High or Float  
High or Float  
Low  
Disabled  
High or Float  
Low  
Disabled  
Low  
Enabled  
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
1-888-INTERSIL or 321-724-7143 | Intersil (and design) is a registered trademark of Intersil Americas Inc.  
Copyright Intersil Americas Inc. 2000, 2004. All Rights Reserved  
1
All other trademarks mentioned are the property of their respective owners.  
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