
Features
I
Single +5V supply
I
Input includes V
EE
I
94MHz unity-gain bandwidth
I
-74/-94dBc HD2/HD3
I
60mA output current
I
7.5ns rise/fall time (1V
pp
)
I
46ns settling time to 0.1%
Applications
I
Video ADC driver
I
Desktop multimedia
I
Single supply cable driver
I
Instrumentation
I
Video cards
I
Wireless IF amplifiers
I
Telecommunications
General Description
The Comlinear CLC427 is a dual wideband voltage-feedback
operational amplifier that is uniquely designed to provide high
performance from a single power supply. This CLC427 provides
near rail-to-rail operation and the common-mode input range
includes the negative rail. Each of the CLC427’s amplifiers offers
plenty of headroom for single-supply applications as evidenced
by its 4.3V
pp
output voltage from a single 5V supply.
Fabricated with a high-speed complementary bipolar process,
the CLC427 delivers a wide 94MHz unity-gain bandwidth, 7.5ns
rise/fall time and 150V/
μ
s slew rate. For single supply applications
such as video distribution or desktop multimedia, the CLC427
offers low 0.35%, 0.55° differential gain and phase errors.
Each of the CLC427’s amplifiers provides high signal fidelity
with -74/-94dBc 2nd/3rd harmonics (1V
pp
, 1MHz, R
L
=150
).
Combining this high fidelity performance with CLC427’s quick
46ns settling time to 0.1% makes it an excellent choice for ADC
buffering.
With its traditional voltage-feedback architecture and high-speed
performance, the CLC427 is the perfect choice for composite
signal conditioning circuit functions such as active filters,
integrators, differentiators, simple gain blocks and buffering.
V
in
50
250
+
-
250
0.1
μ
F
6.8
μ
F
150
NOTE: V
in
= 0.15V to 2.3V
1/2
CLC427
V
o
+5V
+
Typical Application
Single +5V Supply operation
Comlinear CLC427
Dual Voltage Feedback Amplifier
for Single Supply Operation
Frequency Response vs. V
out
M
Frequency (MHz)
1
10
100
1V
pp
2V
pp
4V
pp
A
v
= +2V/V
V
o1
V
inv1
V
non-inv1
V
EE
V
o2
V
inv2
V
non-inv2
V
CC
Pinout
DIP & SOIC
Single Supply Response
O
Time (100ns/div)
V
EE
0
1
2
3
4
V
CC
5
August 1996
C
D
N
1996 National Semiconductor Corporation
Printed in the U.S.A.
http://www.national.com