
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 1. It
provides a very high slew rate at 3000V/μs 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
±
15V power supplies allows for large signal
swings
and
provides
greater
dynamic
range
signal-to-noise ratio. The LM7372 offers high SFDR and low
THD, ideal forADC/DAC systems. In addition, the LM7372 is
specified for
±
5V operation for portable applications.
The LM7372 is built on National’s Advance VIP
III (Verti-
cally integrated PNP) complementary bipolar process.
and
Features
n
80dBc highest harmonic distortion
@
1MHz, 2V
PP
n
Very high slew rate: 3000V/μs
n
Wide gain bandwidth product: 120MHz
n
3dB frequency
@
A
V
= +2: 200MHz
n
Low supply current: 13mA (both amplifiers)
n
High open loop gain: 85dB
n
High output current: 150mA
n
Differential gain and phase: 0.01%, 0.02
Applications
n
HDSL and ADSL Drivers
n
Multimedia broadcast systems
n
Professional video cameras
n
CATV/Fiber optics signal processing
n
Pulse amplifiers and peak detectors
n
HDTV amplifiers
Typical Application
20004903
FIGURE 1. Single Supply Application (SOIC-16)
February 2002
L
2002 National Semiconductor Corporation
DS200049
www.national.com