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Numéro de référence | CLC5633 | ||
Description | Triple/ High Output/ Programmable Gain Buffer | ||
Fabricant | National Semiconductor | ||
Logo | |||
1 Page
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CLC5633
Triple, High Output, Programmable Gain Buffer
June 1999
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), but consumes minimal quiescent
supply current (3.0mA/ch) from a single 5V supply. Its current
feedback architecture, fabricated in an advanced complementary
bipolar process, maintains consistent 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 differen-
tial gain and phase errors of 0.03% and 0.06°. These features are
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 (2Vstep). The combination of low quiescent power,
high output current drive, and high-speed performance 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 100Ω load with only
-73/-92dBc second/third harmonic distortion (Av = +2, Vout =
2Vpp, f = 1MHz). With a 25Ω load, and the same conditions, it
produces only -75/-75dBc second/third harmonic 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 harmonic
distortion (Av = +2, Vout = 2Vpp, f = 1MHz, RL = 1kΩ) and fast
settling time.
Features
s 130mA output current
s 0.03%, 0.06° differential gain, phase
s 3.0mA/ch supply current
s 130MHz bandwidth (Av = +2)
s -92/-96dBc HD2/HD3 (1MHz)
s 20ns settling to 0.05%
s 410V/µs slew rate
s Stable for capacitive loads up to 1000pf
s Single 5V to ±5V supplies
Applications
s Video line driver
s Coaxial cable driver
s Twisted pair driver
s Transformer/coil driver
s High capacitive load driver
s Portable/battery-powered applications
s A/D driver
Maximum Output Voltage vs. RL
10
9
8
7 VCC = ±5V
6
5
4
3 Vs = +5V
2
1
10 100
RL (Ω)
1000
Typical Application
Single Supply Cable Driver
+5V 1
6.8µF
+2
+5V
Vin 0.1µF 5kΩ
0.1µF
3
4
5
5kΩ
0.1µF
6
7
14
1kΩ
1kΩ 13
12
1kΩ - +
1kΩ
11
10
+ - 1kΩ
1kΩ
9
8
CLC5633
Note: Channel 2 and 3 not shown.
10m of 75Ω
75Ω Coaxial Cable
Vo
0.1µF
75Ω
Pinout
DIP & SOIC
NC 1
NC 2
NC 3
+Vs 4
+IN1 5
-IN1 6
OUT1 7
14
1kΩ
1kΩ 13
12
1kΩ - +
1kΩ
11
10
+ - 1kΩ
1kΩ
9
8
OUT2
-IN2
+IN2
-Vs
+IN3
-IN3
OUT3
© 1999 National Semiconductor Corporation
Printed in the U.S.A.
http://www.national.com
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Pages | Pages 12 | ||
Télécharger | [ CLC5633 ] |
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