
Frequency Response (AV = +2V/V)
Features
s
Unity-gain stable
s
High unity-gain bandwidth: 750MHz
s
Ultra-low differential gain: 0.015%
s
Very low differential phase: 0.025°
s
Low power: 70mW
s
Extremely fast slew rate: 1500V/
s
High output current: 90mA
s
Low noise: 3.5nV/
√Hz
s
Dual ±2.5V to ±6V or single 5V to 12V supplies
Applications
s
Professional video
s
Graphics workstations
s
Test equipment
s
Video switching & routing
s
Communications
s
Medical imaging
s
A/D drivers
s
Photo diode transimpedance amplifiers
s
Improved replacement for CLC420 or OPA620
Typical Application
10MHz to 40MHz Square and Triangular Wave Generator
Pinout
DIP & SOIC
General Description
The CLC440 is a wideband, low-power, voltage feedback op amp
that offers 750MHz unity-gain bandwidth, 1500V/
s slew rate, and
90mA output current. For video applications, the CLC440 sets new
standards for voltage feedback monolithics by offering the impres-
sive combination of 0.015% differential gain and 0.025° differen-
tial phase errors while dissipating a mere 70mW.
The CLC440 incorporates the proven properties of Comlinear’s
current feedback amplifiers (high bandwidth, fast slewing, etc.) into a
“classical” voltage feedback architecture. This amplifier possesses
truly differential and fully symmetrical inputs both having a high
900k
impedance with matched low input bias currents.
Furthermore, since the CLC440 incorporates voltage feedback, a
specific Rf is not required for stability. This flexibility in choosing Rf
allows for numerous applications in wideband filtering and integration.
Unlike several other high-speed voltage feedback op amps, the
CLC440 operates with a wide range of dual or single supplies
allowing for use in a multitude of applications with limited supply
availability. The CLC440’s low 3.5nV/
√Hz(e
n) and 2.5pA/√Hz(in)
noise sets a very low noise floor.
CLC440
High-Speed, Low-Power, Voltage Feedback Op Amp
N
June 1999
CLC440
High-Speed,
Lo
w-P
o
wer
,
V
olta
g
e
Feedbac
k
Op
Amp
Generator Waveforms
1999 National Semiconductor Corporation
http://www.national.com
Printed in the U.S.A.