
CLC5633
Triple, High Output, Programmable Gain Buffer
General Description
The CLC5633 is a triple, low cost, high speed (130MHz)
buffer which features user programmable gains of +2, +1,
and 1V/V. The CLC5633 also has a new output stage that
delivers high output drive current (130mA/ch) from a single
5V supply. Its current feedback architecture, fabricated in an
advanced complementary bipolar process, maintains consis-
tent performance over a wide range of gains and signal
levels, and has a linear phase response up to one half of the
3dB frequency.
The CLC5633 offers 0.1dB gain flatness to 20MHz and
differential gain and phase errors of 0.03% and 0.06. These
features area ideal for professional and consumer video
applications.
The CLC5633 offers superior dynamic performance with a
130MHz small-signal bandwidth, 410V/μs slew rate and
5.0ns rise/fall times (2V
). The combination of low quies-
cent power, high output current drive, and high speed per-
formance make the CLC5633 well suited for many battery
powered personal communication/computing systems.
The ability to drive low impedance, highly capacitive loads,
with minimum distortion makes the CLC5633 ideal for cable
applications. The CLC5633 will drive a 100
load with only
73/92dBc second/third harmonic distortion (A
= +2,
V
= 2V
, f = 1MHz). With a 25
load, and the same
conditions, it produces only 75/75dBc second/third har-
monic distortion. It is also optimized for driving high currents
into single-ended transformers and coils.
When driving the input of high resolution A/D converters, the
CLC5633 provides excellent 92/96dBc second/third har-
monic distortion (A
V
= +2, V
OUT
= 2V
PP
, f = 1MHz, R
L
=
1k
) and fast settling time.
Features
n
130mA output current
n
0.03%, 0.06 differential gain, phase
n
3.0mA/ch supply current
n
130MHz bandwidth (A
v
=+2)
n
92/96dBc HD2/HD3 (1MHz)
n
20ns settling to 0.05%
n
410V/μs slew rate
n
Stable for capacitive loads up to 1000pf
n
Single 5V to
±
5V supplies
Applications
n
Video line driver
n
Coaxial cable driver
n
Twisted pair driver
n
Transformer/coil driver
n
High capacitive load driver
n
Portable/battery powered applications
n
A/D driver
Connection Diagram
Maximum Output Voltage vs. R
L
DS015005-1
DS015005-3
Pinout
DIP & SOIC
December 2000
C
2000 National Semiconductor Corporation
DS015005
www.national.com