June 1999
N
CLC109
Low-Power, Wideband, Closed-Loop Buffer
General Description
Features
The CLC109 is a high-performance, closed-loop monolithic buffer
intended for power sensitive applications. Requiring only 35mW of
quiescentpower(±5Vsupplies),theCLC109offersahighbandwidth
of 270MHz (0.5Vpp) and a slew rate of 350V/µs. Even with this
minimal dissipation, the CLC109 can easily drive a demanding
100Ω load. The buffer specifications are for a 100Ω load.
■ High small-signal bandwidth (270MHz)
■ Low supply current (3.5mA @ ±5V)
■ Low output impedance (2.8Ω)
■ 350V/µs slew rate
■ Single supply operation (0 to 3V supply min.)
■ Evaluation boards and Spice models
Applications
■ Video switch buffers
■ Test point drivers
■ Low power active filters
■ DC clamping buffer
With its patented closed-loop topology, the CLC109 has significant
performance advantages over conventional open-loop designs.
Applications requiring low (2.8Ω) output impedance and nearly
ideal unity gain (0.997) through very high frequencies will benefit
from the CLC109's superior performance. Power sensitive
applications will benefit from the CLC109's excellent performance
on reduced or single supply voltages.
■ High-speed S & H circuits
■ Inverting op amp input buffer
Constructed using an advanced, complementary bipolar process
and Comlinear's proven high-performance architectures, the
CLC109 is available in several versions to meet a variety of
requirements.
CLC109AJP
CLC109AJE
CLC109ALC
-40°C to +85°C
-40°C to +85°C
-40°C to +85°C
8-pin Plastic DIP
8-pin Plastic SOIC
dice
CLC109AMC -55°C to +125°C
dicequalifiedtoMethod5008,
MIL-STD-883, Level B
5-pin SOT
CLC109AJM5 -40°C to +85°C
Contact factory for other packages and DESC SMD number.
Vo
VCC
PINOUT
SOT23-5
PINOUT
DIP & SOIC
VEE
Vnon-inv
Vinv
Typical Application
CLC109
Single-Supply Circuit
1999 National Semiconductor Corporation
Printed in the U.S.A.
http://www.national.com