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HFA1115

更新时间： 2024-11-15 22:51:19
品牌 Logo 应用领域
英特矽尔 - INTERSIL 缓冲放大器
页数 文件大小 规格书
14页 162K
描述
225MHz, Low Power, Output Limiting, Closed Loop Buffer Amplifier

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HFA1115 数据手册

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HFA1115  
September 1998  
File Number 3606.4  
225MHz, Low Power, Output  
Features  
Limiting, Closed Loop Buffer Amplifier  
• User Programmable Output Voltage Limiting  
The HFA1115 is a high speed closed loop Buffer featuring both  
user programmable gain and output limiting. Manufactured on  
Intersil’s proprietary complementary bipolar UHF-1 process, the  
HFA1115 also offers a wide -3dB bandwidth of 225MHz, very  
fast slew rate, excellent gain flatness and high output current.  
• High Input Impedance . . . . . . . . . . . . . . . . . . . . . . . 1MΩ  
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.02%  
• Differential Phase . . . . . . . . . . . . . . . . . . . . 0.03 Degrees  
• Wide -3dB Bandwidth (A = +2). . . . . . . . . . . . . .225MHz  
V
This buffer is the ideal choice for high frequency applications  
requiring output limiting, especially those needing ultra fast  
overload recovery times. The limiting function allows the  
designer to set the maximum positive and negative output  
levels, thereby protecting later stages from damage or input  
saturation. The HFA1115 also allows for voltage gains of +2,  
+1, and -1, without the use of external resistors. Gain  
selection is accomplished via connections to the inputs, as  
described in the “Application Information” text. The result is a  
more flexible product, fewer part types in inventory, and more  
efficient use of board space.  
• Very Fast Slew Rate (A = -1) . . . . . . . . . . . . . . 1135V/µs  
V
• Low Supply Current . . . . . . . . . . . . . . . . . . . . . . . . 7.1mA  
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . .60mA  
• Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . . 0.99V/V  
• User Programmable For Closed-Loop Gains of +1, -1 or  
+2 Without Use of External Resistors  
• Fast Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . <1ns  
• Standard Operational Amplifier Pinout  
Compatibility with existing op amp pinouts provides flexibility  
to upgrade low gain amplifiers, while decreasing component  
count. Unlike most buffers, the standard pinout provides an  
upgrade path, should a higher closed loop gain be needed at  
a future date. For Military product, refer to the HFA1115/883  
data sheet.  
Applications  
• Flash A/D Drivers  
• Video Cable Drivers  
• High Resolution Monitors  
• Professional Video Processing  
• Medical Imaging  
Pinout  
HFA1115  
(PDIP, SOIC)  
TOP VIEW  
• Video Digitizing Boards/Systems  
• Battery Powered Communications  
350  
NC  
-IN  
+IN  
V-  
1
2
3
4
8
7
6
5
V
H
Ordering Information  
350  
_
+
V+  
PART NUMBER  
(BRAND)  
TEMP.  
RANGE ( C)  
PKG.  
NO.  
o
PACKAGE  
8 Ld PDIP  
8 Ld SOIC  
OUT  
HFA1115IP  
-40 to 85  
E8.3  
M8.15  
V
L
HFA1115IB  
(H1115I)  
-40 to 85  
Pin Descriptions  
HFA11XXEVAL  
High Speed Op Amp DIP Evaluation Board  
NAME  
PIN NUMBER  
DESCRIPTION  
NC  
1
2
3
4
5
6
7
8
No Connection  
Inverting Input  
Non-Inverting Input  
Negative Supply  
Lower Output Limit  
Output  
-IN  
+IN  
V-  
V
L
OUT  
V+  
Positive Supply  
Upper Output Limit  
V
H
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.  
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999  
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