clc431 National Semiconductor Corporation, clc431 Datasheet

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clc431

Manufacturer Part Number
clc431
Description
Dual Wideband Monolithic Op Amp With Disable
Manufacturer
National Semiconductor Corporation
Datasheet
General Description
The CLC431 and CLC432 current-feedback amplifiers provide wide
bandwidths and high slew rates for applications where board density
and power are key considerations. These amplifiers provide DC-
coupled small signal bandwidths exceeding 92MHz while consuming
only 7mA per channel. Operating from ±15V supplies, the CLC431/
432’s enhanced slew rate circuitry delivers large-signal bandwidths
with output voltage swings up to 28V
insensitive gains are made possible by virtue of the CLC431 and
CLC432’s current-feedback topology.
The large common-mode input range and fast settling time (70ns
to 0.05%) make these amplifiers well suited for CCD & data
telecommunication applications. The disable of the CLC431 can
accommodate ECL or TTL logic levels or a wide range of user
definable inputs. With its fast enable/disable time (0.2 s/1 s) and
high channel isolation of 70dB at 10MHz, the CLC431 can easily be
configured as a 2:1 MUX. Many high performance video applications
requiring signal gain and/or switching will be satisfied with the
CLC431/432 due to their very low differential gain and phase errors
(less than 0.1% and 0.1°; A
Quick 8ns rise and fall times on 10V pulses allow the CLC431/432 to
drive either twisted pair or coaxial transmission lines over long
distances.
The CLC431/432's combination of low input voltage noise, wide
common-mode input voltage range and large output voltage swings
make them especially well suited for wide dynamic range signal
processing applications.
Printed in the U.S.A.
N
CLC431/432
Dual Wideband Monolithic Op Amp with Disable
1999 National Semiconductor Corporation
1V
pp
@ 5MHz
Discrete Gain Select Amplifier
SELECT
Typical Application
50
50
R
R
g
g
v
= +2V/V at 4.43MHz into 150 load).
500
125
½CLC431
½CLC431
500
500
R
R
f
f
pp
. A wide range of bandwidth-
Channel 1 (Gain = 2)
50
Channel 2 (Gain = 5)
50
R
R
i
i
50
R
50
s
R
L
V
out
V
V
non-inv
non-inv
V
DIS1
DIS2
V
-V
inv
inv
cc
1
1
2
2
1
2
3
4
5
6
7
PDIP & SOIC
Pinout
CLC431
Features
Applications
Wide bandwidth: 92MHz (A
Fast slew rate: 2000V/ s
Fast disable: 1 s to high-Z output
High channel isolation: 70dB at 10MHz
Single or dual supplies: ±5V to ±16.5V
Video signal multiplexing
Twisted-pair differential driver
CCD buffer & level shifting
Discrete gain-select amplifier
Transimpedance amplifier
14
13
12
11
10
9
8
V
V
DIS1
+V
DIS2
V
V
out
R
R
out
TTL
cc
TTL
1
2
1
2
V
non-inv
V
V
-Vcc
62MHz (A
out
inv
1
1
1
1
2
3
4
CLC432
-
+
V
v
=+1)
=+2)
http://www.national.com
-
+
June 1999
8
7
6
5
+V
V
V
V
out
inv
non-inv
cc
2
2
2

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clc431 Summary of contents

Page 1

... CLC431/432 due to their very low differential gain and phase errors (less than 0.1% and 0.1° +2V/V at 4.43MHz into 150 load). v Quick 8ns rise and fall times on 10V pulses allow the CLC431/432 to drive either twisted pair or coaxial transmission lines over long distances. The CLC431/432's combination of low input voltage noise, wide ...

Page 2

... =100 L SWITCHING PERFORMANCE (CLC431) switching time turn on turn off DIS logic levels single-ended mode high input voltage ( low input voltage ( maximum current input V IH |DIS- DIS | ...

Page 3

3 http://www.national.com ...

Page 4

... CLC431 Disable Feature The CLC431 disable feature can be operated either single-endedly or differentially thereby accommodating a wide range of logic families. There are three pins asso- =866 , ciated with the disable feature of each of the CLC431's f two amplifiers: DIS DIS and V 4 vs. Gain" provide the means of ...

Page 5

... Applying a differential logic "high" ( DIS - DIS must be grounded, 0.4Volts) switches the tail current of the differential pair from and results in the disabling of that CLC431 channel. Alternatively, applying a differential logic "low" ( DIS - DIS differential pair from and results in the enabling of that same channel ...

Page 6

... PAL video levels. Switched Gain Amplifier (CLC431) As seen from the front page, the CLC431 can also be configured as a switched-gain amplifier that is similar to the 2:1 mux. Configuring each of the two CLC431's amplifiers with different non-inverting gains and tying the ...

Page 7

... Reliability Information Transistor count Package Thermal Resistance 37 CLC431 Package JC AJP 55 C AJE 35 C CERDIP 25 C CLC432 Package AJP 55 C AJE 40 C CERDIP 100 C 105 110 C 115 C 115 C http://www.national.com ...

Page 8

... National’s products are not authorized for use as critical components in life support devices or systems without the express written approval of the president of National Semiconductor Corporation. As used herein: 1. Life support devices or systems are devices or systems which, a) are intended for surgical implant into the body support or sustain life, and whose failure to perform, when properly used in accordance with instructions for use provided in the labeling, can be reasonably expected to result in a significant injury to the user ...

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