Intersil Corporation HFA1114 Datasheet
HFA1114
November 1996
Features
• Access to Summing Node Allows Circuit Customization
• User Programmable For Closed-Loop Gains of +1, -1
or +2 Without Use of External Resistors
• Wide -3dB Bandwidth . . . . . . . . . . . . . . . . . . . . 850MHz
• Very Fast Slew Rate . . . . . . . . . . . . . . . . . . . . 2400V/µs
• Fast Settling Time (0.1%) . . . . . . . . . . . . . . . . . . . 11ns
• High Output Current . . . . . . . . . . . . . . . . . . . . . . . 60mA
• Excellent Gain Accuracy. . . . . . . . . . . . . . . . . . 0.99V/V
• Overdrive Recovery. . . . . . . . . . . . . . . . . . . . . . . <10ns
• Standard Operational Amplifier Pinout
Applications
• RF/IF Processors
• Driving Flash A/D Converters
• High Speed Communications
• Impedance Transformation
• Line Driving
• Video Switching and Routing
• Radar Systems
• Medical Imaging Systems
850MHz Video Cable Driving Buffer
Description
The HFA1114 is a closed loop Buffer featuring user
programmable gain and ultra high speed performance.
Manufactured on Intersil’ proprietary complementary bipolar
UHF-1 process, the HFA1114 offers a wide -3dB bandwidth
of 850MHz, very fast slew rate, excellent gain flatness, low
distortion 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 applications requiring a standard buffer pinout, please
refer to the HFA1110 datasheet.
Ordering Information
PART NUMBER
(BRAND)
HFA1114IP -40 to 85 8 Ld PDIP E8.3
HFA1114IB
(H1114I)
TEMP. RANGE
(oC) PACKAGE
-40 to 85 8 Ld SOIC M8.15
PKG.
NO.
HFA11XXEVAL DIP Evaluation Board for High Speed
Pinout
HFA1114
(PDIP, SOIC)
TOP VIEW
300
300
-
+
8
NC
V+
7
OUT
6
5
SN
NC
1
-IN
2
+IN
3
V-
4
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
1-888-INTERSIL or 321-724-7143 | Copyright © Intersil Corporation 1999
Pin Descriptions
NAME
NC 1, 8 No Connection
-IN 2 Inverting Input
+IN 3 Non-Inverting Input
V- 4 Negative Supply
SN 5 Summing Node
OUT 6 Output
V+ 7 Positive Supply
5-1
Op Amps
PIN
NUMBER DESCRIPTION
File Number 3151.3
HFA1114
Absolute Maximum Ratings Thermal Information
Voltage Between V+ and V- . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12V
DC Input Voltage . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . V
Differential Input Voltage. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 5V
Output Current . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 60mA
SUPPLY
Operating Conditions
Temperature Range . . . . . . . . . . . . . . . . . . . . . . . . . -40oC to 85oC
CAUTION: Stresses above those listed in “Absolute Maximum Ratings” may cause permanent damage to the device. This is a stress only rating and operation
of the device at these or any other conditions above those indicated in the operational sections of this specification is not implied.
NOTE:
1. θJA is measured with the component mounted on an evaluation PC board in free air.
Thermal Resistance (Typical, Note 1) θJA (oC/W)
PDIP Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 130
SOIC Package. . . . . . . . . . . . . . . . . . . . . . . . . . . . . 170
Maximum Junction Temperature (Die). . . . . . . . . . . . . . . . . . . . 175oC
Maximum Junction Temperature (Plastic Package) . . . . . . . . 150oC
Maximum Storage Temperature Range . . . . . . . . . -65oC to 150oC
Maximum Lead Temperature (Soldering 10s). . . . . . . . . . . . 300oC
(SOIC - Lead Tips Only)
Electrical Specifications V
PARAMETER
INPUT CHARACTERISTICS
Output Offset Voltage 25 - 8 25 mV
Output Offset Voltage Drift Full - 10 - µV/oC
PSRR 25 39 45 - dB
Input Noise Voltage 100kHz 25 - 9 - nV/√Hz
Non-Inverting Input Noise Current 100kHz 25 - 37 - pA/√Hz
Non-Inverting Input Bias Current 25 - 25 40 µA
Non-Inverting Input Resistance 25 25 50 - kΩ
Inverting Input Resistance 25 240 300 360 Ω
Input Capacitance Either Input 25 - 2 - pF
Input Common Mode Range Full ±2.5 ±2.8 - V
= ±5V, AV = +1, RL = 100Ω, Unless Otherwise Specified
SUPPLY
TEST
CONDITIONS
TEMP.
o
(
C) MIN TYP MAX UNITS
Full - - 35 mV
Full 35 - - dB
Full - - 65 µA
TRANSFER CHARACTERISTICS
Gain AV = +1, VIN = +2V 25 0.980 0.990 1.02 V/V
Full 0.975 - 1.025 V/V
AV = +2, VIN = +1V 25 1.96 1.98 2.04 V/V
Full 1.95 - 2.05 V/V
DC Non-Linearity AV = +2, ±2V Full Scale 25 - 0.02 - %
OUTPUT CHARACTERISTICS
Output Voltage AV = -1 25 ±3.0 ±3.3 - V
Full ±2.5 ±3.0 - V
Output Current AV = -1, RL = 50Ω 25, 85 50 60 - mA
-40oC35 50 - mA
Closed Loop Output Impedance AV= +2, DC 25 - 0.3 - Ω
5-2
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