HA-5020
®
Data Sheet
June 5, 2006
100MHz Current Feedback
Video Amplifier With Disable
FN2845.11
Features
• Wide Unity Gain Bandwidth . . . . . . . . . . . . . . . . . 100MHz
The HA-5020 is a wide bandwidth, high slew rate amplifier
optimized for video applications and gains between 1 and
10. Manufactured on Intersil’s Reduced Feature
Complementary Bipolar DI process, this amplifier uses
current mode feedback to maintain higher bandwidth at a
given gain than conventional voltage feedback amplifiers.
Since it is a closed loop device, the HA-5020 offers better
gain accuracy and lower distortion than open loop buffers.
The HA-5020 features low differential gain and phase and
will drive two double terminated 75Ω coax cables to video
levels with low distortion. Adding a gain flatness
performance of 0.1dB makes this amplifier ideal for
demanding video applications. The bandwidth and slew rate
of the HA-5020 are relatively independent of closed loop
gain. The 100MHz unity gain bandwidth only decreases to
60MHz at a gain of 10. The HA-5020 used in place of a
conventional op amp will yield a significant improvement in
the speed power product. To further reduce power, HA-5020
has a disable function which significantly reduces supply
current, while forcing the output to a true high impedance
state. This allows the outputs of multiple amplifiers to be
wire-OR’d into multiplexer configurations. The device also
includes output short circuit protection and output offset
voltage adjustment.
For multi channel versions of the HA-5020 see the HA5022
dual with disable, HA5023 dual, HA5013 triple and HA5024
quad with disable op amp data sheets.
• Slew Rate. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 800V/µs
• Output Current . . . . . . . . . . . . . . . . . . . . . . . ±30mA (Min)
• Drives 3.5V into 75Ω
• Differential Gain . . . . . . . . . . . . . . . . . . . . . . . . . . . 0.03%
• Differential Phase . . . . . . . . . . . . . . . . . . . . . . . . . . . .0.03°
• Low Input Voltage Noise . . . . . . . . . . . . . . . . . 4.5nV/√Hz
• Low Supply Current . . . . . . . . . . . . . . . . . . . . 10mA (Max)
• Wide Supply Range . . . . . . . . . . . . . . . . . . . ±5V to ±15V
• Output Enable/Disable
• High Performance Replacement for EL2020
• Pb-Free Plus Anneal Available (RoHS Compliant)
Applications
• Unity Gain Video/Wideband Buffer
• Video Gain Block
• Video Distribution Amp/Coax Cable Driver
• Flash A/D Driver
• Waveform Generator Output Driver
• Current to Voltage Converter; D/A Output Buffer
• Radar Systems
• Imaging Systems
Pinout
HA-5020
(PDIP, SOIC)
TOP VIEW
BAL
1
IN-
2
IN+
3
V-
8
7
1
OUT
5
4
V+
6
-
+
DISABLE
BAL
CAUTION: These devices are sensitive to electrostatic discharge; follow proper IC Handling Procedures.
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