HFA1212IB Intersil Corporation, HFA1212IB Datasheet

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HFA1212IB

Manufacturer Part Number
HFA1212IB
Description
Manufacturer
Intersil Corporation
Datasheet

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Part Number
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Part Number:
HFA1212IB
Manufacturer:
INTERSIL
Quantity:
20 000
Dual 350MHz, Low Power Closed Loop
Buffer Amplifier
The HFA1212 is a dual closed loop Buffer featuring user
programmable gain and high speed performance.
Manufactured on Intersil’s proprietary complementary
bipolar UHF-1 process, these devices offer wide -3dB
bandwidth of 350MHz, very fast slew rate, excellent gain
flatness and high output current.
A unique feature of the pinout allows the user to select a
voltage gain of +1, -1, or +2, without the use of any external
components. Gain selection is accomplished via
connections to the inputs, as described in the “Application
Information” section. The result is a more flexible product,
fewer part types in inventory, and more efficient use of board
space.
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 HFA1212/883
data sheet.
Ordering Information
HFA1212IP
HFA1212IB
(H1212I)
PART NUMBER
(BRAND)
RANGE (
-40 to 85
-40 to 85
TEMP.
o
C)
1
8 Ld PDIP
8 Ld SOIC
PACKAGE
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
E8.3
M8.15
PKG.
NO.
http://www.intersil.com or 407-727-9207 | Copyright © Intersil Corporation 1999
Features
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025%
• Differential Phase . . . . . . . . . . . . . . . . . . . . 0.03 Degrees
• Wide -3dB Bandwidth (A
• Very Fast Slew Rate (A
• Low Supply Current . . . . . . . . . . . . . . . . . . . . 6mA/Buffer
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
• Excellent Gain Accuracy . . . . . . . . . . . . . . . . . . . 0.99V/V
• User Programmable For Closed-Loop Gains of +1, -1 or
• Overdrive Recovery . . . . . . . . . . . . . . . . . . . . . . . . . . 8ns
• Standard Operational Amplifier Pinout
Applications
• High Resolution Monitors
• Professional Video Processing
• Medical Imaging
• Video Digitizing Boards/Systems
• RF/IF Processors
• Battery Powered Communications
• Flash Converter Drivers
• High Speed Pulse Amplifiers
Pinout
+2 Without Use of External Resistors
September 1998
OUT1
+IN1
-IN1
V-
1
2
3
4
(PDIP, SOIC)
V
TOP VIEW
HFA1212
V
= -1) . . . . . . . . . . . . . . 1100V/ s
+
= +2) . . . . . . . . . . . . . . 350MHz
-
-
+
File Number 3607.4
8
7
6
5
V+
OUT2
-IN2
+IN2
HFA1212

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HFA1212IB Summary of contents

Page 1

... Ordering Information PART NUMBER TEMP. o (BRAND) RANGE ( C) PACKAGE HFA1212IP - PDIP HFA1212IB - SOIC (H1212I) 1 September 1998 Features • Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . 0.025% • Differential Phase . . . . . . . . . . . . . . . . . . . . 0.03 Degrees • Wide -3dB Bandwidth (A • Very Fast Slew Rate (A • Low Supply Current . . . . . . . . . . . . . . . . . . . . 6mA/Buffer • ...

Page 2

Absolute Maximum Rating Supply Voltage (V+ to V-). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .11V DC Input ...

Page 3

Electrical Specifications V SUPPLY PARAMETER TRANSFER CHARACTERISTICS Gain (V = -1V to +1V) IN Channel-to-Channel Gain Mismatch AC CHARACTERISTICS -3dB Bandwidth (V = 0.2V , Note 4) OUT P-P Full Power Bandwidth ( ...

Page 4

Electrical Specifications V SUPPLY PARAMETER Overshoot ( 1ns, Note 5) OUT P-P IN RISE Slew Rate ( -1, OUT P ...

Page 5

Unity Gain Considerations Unity gain selection is accomplished by floating the -Input of the HFA1212. Anything that tends to short the -Input to GND, such as stray capacitance at high frequencies, will cause the amplifier gain to increase toward a ...

Page 6

Evaluation Board The performance of the HFA1212 may be evaluated using the HA5023 Evaluation Board, slightly modified as follows: 1. Remove the two feedback resistors, and leave the con- nections open For evaluation, remove the ...

Page 7

Typical Performance Curves 2 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 TIME (5ns/DIV.) FIGURE 6. LARGE SIGNAL BIPOLAR PULSE RESPONSE 2 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 TIME (5ns/DIV.) ...

Page 8

Typical Performance Curves 2 1.5 1.0 0.5 0 -0.5 -1.0 -1.5 -2.0 TIME (5ns/DIV.) FIGURE 12. LARGE SIGNAL BIPOLAR PULSE RESPONSE (+1) OUT P ...

Page 9

Typical Performance Curves -40 -45 20MHz -50 -55 10MHz -60 -65 -70 - OUTPUT POWER (dBm) FIGURE 18. 2nd HARMONIC DISTORTION 0.10 V 0.05 0 -0.05 -0. TIME ...

Page 10

... All Intersil semiconductor products are manufactured, assembled and tested under ISO9000 quality systems certification. Intersil semiconductor products are sold by description only. Intersil Corporation reserves the right to make changes in circuit design and/or specifications at any time with- out notice. Accordingly, the reader is cautioned to verify that data sheets are current before placing orders. Information furnished by Intersil is believed to be accurate and reliable. However, no responsibility is assumed by Intersil or its subsidiaries for its use ...

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