CLC408 Datasheet, PDF (1/12 Pages) National Semiconductor (TI) – Comlinear CLC408 High-Speed, Low-Power Line Driver

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Comlinear CLC408
High-Speed, Low-Power Line Driver
August 1996
General Description
The Comlinear CLC408 delivers high output drive current
(96mA), but consumes minimal quiescent supply current
(1.5mA). Its current feedback architecture, fabricated in an
advanced complementary bipolar process, maintains consistent
performance over a wide range of gains and signal levels.
The CLC408 offers superior dynamic performance with a
130MHz small-signal bandwidth, 350V/µs slew rate and 4.6ns
rise/fall times (2V_pp). The combination of low quiescent power,
high output drive current, and high-speed performance make
the CLC408 a great choice for many portable and battery-
powered personal communication and computing systems.
The CLC408 drives low-impedance loads, including capacitive
loads, with little change in performance. Into a 100Ω load, it
delivers -85/-64dBc second/third harmonic distortion (A_v = +2,
V_o = 2V_pp, f = 1MHz). With a 25Ω load, and the same
conditions, it produces only -67/-62dBc second/third harmonic
distortion. It is also an excellent choice for driving high currents
into single-ended transformers and coils.
When driving the input of high resolution A/D converters, the
CLC408 provides excellent -85/-75dBc second/third harmonic
distortion and fast settling time (A_v = +2, V_o = 2V_pp, f = 1MHz,
R_L =1kΩ).
Features
s 96mA output current
s 1.5mA supply current
s 130MHz bandwidth (Av = +2)
s -85/-75dBc HD2/HD3 (1MHz)
s 15ns settling to 0.2%
s 350V/µs slew rate
s Dual version available (CLC418)
Applications
s Coaxial cable driver
s Twisted pair driver
s Transformer/coil driver
s High capacitive load driver
s Video line driver
s ADSL/HDSL driver
s Portable/battery-powered line driver
s A/D driver
Non-Inverting Frequency Response
(Av = +2V/V, RL = 25Ω)
1M
VinA
Rt1
VoB
Typical Application Diagram
Full Duplex Cable Driver
+
Rm1
Z0
CLC408
-
Rf1
Rg2
Rf2
Rm1
CLC408
Rg2 ^Rf1
Rf2
CLC426
Rt2
-
Rt2
CLC426
+
© 1996 National Semiconductor Corporation
Printed in the U.S.A.
VinB
Rt1
VoA
10M
100M
Frequency (Hz)
Pinout
DIP & SOIC
VEE
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