CLC5665 Datasheet, PDF (1/8 Pages) National Semiconductor (TI) – Low Distortion Amplifier with Disable

N
CLC5665
Low Distortion Amplifier with Disable
June 1999
General Description
The CLC5665 is a low-cost, wideband amplifier that provides very
low 2nd and 3rd harmonic distortion at 1MHz (-89/-92dBc). The
great slew rate of 1800V/µs, bandwidth of 90MHz (A_v = +1) and
fast disable make it an excellent choice for many high speed
multiplexing applications. Like all current feedback op amps, the
CLC5665 allows the frequency response to be optimized
(or adjusted) by the selection of the feedback resistor. For
demanding video applications, the 0.1dB bandwidth to 20MHz
and differential gain/phase of 0.05%/0.05° make the CLC5665
the preferred component for broadcast quality NTSC and PAL
video systems.
The large voltage swing (28V_pp), continuous output current
(85mA) and slew rate (1800V/µs) provide high-fidelity signal
conditioning for applications such as CCDs, transmission lines
and low impedance circuits.
xDSL, video distribution, multimedia and general purpose
applications will benefit from the CLC5665’s wide bandwidth and
disable feature. Power is reduced and the output becomes a high
impedance when disabled. The wide gain range of the CLC5665
makes this general purpose op amp an improved solution for
circuits such as active filters, single-to-differential-ended drivers,
DAC transimpedance amplifiers and MOSFET drivers.
Features
s 0.1dB gain flatness to 20MHz (A_v = +2)
s 90MHz bandwidth (A_v = +1)
s Large signal BW 25MHz
s 1800V/µs slew rate
s 0.05%/0.05° differential gain/phase
s ±5V, ±15V or single supplies
s 200ns disable to high-impedance output
s Wide gain range
s -89/-92dBc HD2/HD3 (R_L = 500Ω)
s Low cost
Applications
s xDSL driver
s Twisted pair driver
s Cable driver
s Video distribution
s CCD clock driver
s Multimedia systems
s DAC output buffers
s Imaging systems
Non-Inverting Frequency Response
Gain
Av = 1
Rf = 698
Phase
Av = 10
Rf = 100 _{Av = 2}
Rf = 604
Av = 1
0
-45
Av = 50
-90
Av = 2
-135
Av = 50
Rf = 500
Av = 10
-180
1
10
100
Frequency (MHz)
+
Vin (Vpp)
-
DIS
+
CLC5665
-
Rf1
Rg ^604Ω
1.2kΩ
Rf2
604Ω
-
CLC5665
+
Typical Application
Differential Line Driver for xDSL
Ro
1:n
Vo = 2Vin
nVo
RL
Ro
Note: Supply and Bypassing not shown.
DIS
© 1999 National Semiconductor Corporation
Printed in the U.S.A.
Pinout
DIP & SOIC
NC 1
V_inv 2 -
V_non-inv 3 ⁺
-V_cc 4
8 DIS
7 +V_cc
6 V_out
5 NC
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