CLC431 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Dual Wideband Monolithic Op Amp with Disable

N
June 1999
CLC431/432
Dual Wideband Monolithic Op Amp with Disable
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_pp. A wide range of bandwidth-
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 (0.2µs/1µs) 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_v = +2V/V at 4.43MHz into 150Ω load).
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.
Features
s Wide bandwidth: 92MHz (A =+1)
V
62MHz (A_v=+2)
s Fast slew rate: 2000V/µs
s Fast disable: 1µs to high-Z output
s High channel isolation: 70dB at 10MHz
s Single or dual supplies: ±5V to ±16.5V
Applications
s Video signal multiplexing
s Twisted-pair differential driver
s CCD buffer & level shifting
s Discrete gain-select amplifier
s Transimpedance amplifier
Typical Application
Discrete Gain Select Amplifier
1Vpp @ 5MHz
Rg 500Ω
Rf ^{Channel 1 (Gain = 2)}
500Ω
50Ω
SELECT
50Ω
½CLC431
Ri
50Ω
Ri
½CLC431
50Ω
Rs
50Ω
50Ω
Vout
RL
500Ω
Rf
Rg _125Ω
Channel 2 (Gain = 5)
Pinout
PDIP & SOIC
CLC431
Vinv1 1
Vnon-inv1 2
DIS1 3
-Vcc 4
DIS2 5
Vnon-inv2 6
Vinv2 7
14 Vout1
13 VR_TTL1
12 DIS1
11 +Vcc
Vout1 1
10 DIS2
Vinv1 2
9 VR_TTL2 _{Vnon-inv1 3}
8 Vout2
-Vcc ⁴
CLC432
-
+
-
+
8 +Vcc
7 V_out2
6 Vinv2
5 _Vnon-inv2
© 1999 National Semiconductor Corporation
Printed in the U.S.A.
http://www.national.com