LM7372 High Speed, High Output Current, Dual Operational Amplifier
February 2002
LM7372
High Speed, High Output Current, Dual Operational
Amplifier
General Description
The LM7372 is a high speed dual voltage feedback amplifier
that has the slewing characteristic of current feedback am-
plifiers; yet it can be used in all traditional voltage feedback
amplifier configurations.
The LM7372 is stable for gains as low as +2 or 鈭?. It
provides a very high slew rate at 3000V/碌s and a wide gain
bandwidth product of 120MHz, while consuming only
6.5mA/per amplifier of supply current. It is ideal for video and
high speed signal processing applications such as xDSL and
pulse amplifiers. With 150mA output current, the LM7372
can be used for video distribution, as a transformer driver or
as a laser diode driver.
Operation on
鹵
15V power supplies allows for large signal
swings and provides greater dynamic range and
signal-to-noise ratio. The LM7372 offers high SFDR and low
THD, ideal for ADC/DAC systems. In addition, the LM7372 is
specified for
鹵
5V operation for portable applications.
The LM7372 is built on National鈥檚 Advance VIP
鈩?/div>
III (Verti-
cally integrated PNP) complementary bipolar process.
Features
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鈭?0dBc highest harmonic distortion
@
1MHz, 2V
PP
Very high slew rate: 3000V/碌s
Wide gain bandwidth product: 120MHz
鈭?dB frequency
@
A
V
= +2: 200MHz
Low supply current: 13mA (both amplifiers)
High open loop gain: 85dB
High output current: 150mA
Differential gain and phase: 0.01%, 0.02藲
Applications
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HDSL and ADSL Drivers
Multimedia broadcast systems
Professional video cameras
CATV/Fiber optics signal processing
Pulse amplifiers and peak detectors
HDTV amplifiers
Typical Application
20004903
FIGURE 1. Single Supply Application (SOIC-16)
漏 2002 National Semiconductor Corporation
DS200049
www.national.com
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