CLC408AJE NSC [National Semiconductor], CLC408AJE Datasheet

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CLC408AJE

Manufacturer Part Number
CLC408AJE
Description
Comlinear CLC408 High-Speed, Low-Power Line Driver
Manufacturer
NSC [National Semiconductor]
Datasheet
© 1996 National Semiconductor Corporation
Printed in the U.S.A.
N
Comlinear CLC408
High-Speed, Low-Power Line Driver
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/ s slew rate and 4.6ns
rise/fall times (2V
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 100
delivers -85/-64dBc second/third harmonic distortion (A
V
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
R
o
L
V
=1k ).
V
= 2V
inA
oB
R
t1
pp
, f = 1MHz). With a 25
CLC426
CLC408
+
R
R
-
f2
pp
f1
+
). The combination of low quiescent power,
-
R
Typical Application Diagram
g2
R
t2
R
Full Duplex Cable Driver
m1
v
= +2, V
Z
0
load, and the same
o
= 2V
R
m1
pp
R
t2
, f = 1MHz,
R
g2
v
CLC408
load, it
= +2,
CLC426
+
-
R
R
f1
f2
+
-
Features
Applications
96mA output current
1.5mA supply current
130MHz bandwidth (Av = +2)
-85/-75dBc HD2/HD3 (1MHz)
15ns settling to 0.2%
350V/ s slew rate
Dual version available (CLC418)
Coaxial cable driver
Twisted pair driver
Transformer/coil driver
High capacitive load driver
Video line driver
ADSL/HDSL driver
Portable/battery-powered line driver
A/D driver
R
V
V
t1
1M
inB
oA
Non-Inverting Frequency Response
(A
v
= +2V/V, R
V
Frequency (Hz)
EE
L
= 25 )
10M
DIP & SOIC
Pinout
http://www.national.com
100M
August 1996

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CLC408AJE Summary of contents

Page 1

N Comlinear CLC408 High-Speed, Low-Power Line Driver 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 ...

Page 2

... Model 96mA CLC408AJP ±V CLC408AJE CC +175°C CLC408AJE-TR -65°C to +150°C CLC408AJE-TR13 CLC408ALC +300°C 2000V Package Thermal Resistance Package Plastic (AJP) Surface Mount (AJE) Transistor Count MTBF (based on limited test data 100 , 5V, unless specified MIN/MAX RATINGS UNITS 0 to 70° ...

Page 3

Typical Performance Characteristics Non-Inverting Frequency Response Gain +10 v Phase 0 A +10 v -90 R =200 -180 R =402 f ...

Page 4

Typical Performance Characteristics Closed Loop Output Resistance 100 10 1 0.1 10M 100M Frequency (Hz) Large Signal Pulse Response 4 2 -4.0 Time (10ns/div) Settling Time vs. Capacitive Load ...

Page 5

CLC408 DESIGN INFORMATION Standard op amp circuits work with CFB op amps. There are 3 unique design considerations for CFB: The feedback resistor (R in Figures 1-3) sets f AC performance R cannot be replaced with a short or a ...

Page 6

CLC408 0 6 Figure 3: Transimpedance Gain DC Design (level shifting) Figure 4 shows a ...

Page 7

Capacitance across not place a capacitor across R Use a resistor with low parasitic capacitance for capacitive load Use a series resistor between the output and a capacitive load (see the Settling Time vs. ...

Page 8

Unity gain applications are limited by the Common-Mode Input Range. At greater non-inverting gains, the Output Voltage Range becomes the limiting factor. gain applications are limited by the Output Voltage Range (and by the previous amplifier’s ability to drive R ...

Page 9

We selected the component values as follows 3.0k , for unity gain of the CLC408 the characteristic impedance the transmission line ≥ 100 ...

Page 10

GBWP is the Gain-Bandwidth Product made larger, f becomes smaller should be large enough so that U2’s 1/f noise does not significantly impact the output noise. Adjust R so that ...

Page 11

This page intentionally left blank. 11 http://www.national.com ...

Page 12

Customer Design Applications Support National Semiconductor is committed to design excellence. For sales, literature and technical support, call the National Semiconductor Customer Response Group at 1-800-272-9959 or fax 1-800-737-7018. Life Support Policy National’s products are not authorized for use as ...

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