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Cadeka - Low Distortion Driver Amplifier

Numéro de référence KH561
Description Low Distortion Driver Amplifier
Fabricant Cadeka 
Logo Cadeka 





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KH561 fiche technique
KH561
Wideband, Low Distortion Driver Amplifier
www.datasheet4u.com
www.cadeka.com
Features
s 150MHz bandwidth at +24dBm output
s Low distortion
(2nd/3rd: -59/-62dBc @ 20MHz and 10dBm)
s Output short circuit protection
s User-definable output impedance, gain,
and compensation
s Internal current limiting
s Direct replacement for CLC561
Applications
s Output amplification
s Arbitrary waveform generation
s ATE systems
s Cable/line driving
s Function generators
s SAW drivers
s Flash A/D driving and testing
Frequency Response vs. Output Power
16
Po = 10dBm
14 Vo = 2Vpp
12
Po = 24dBm
Vo = 10Vpp
10 Po = 27.5dBm
Vo = 15Vpp
8
Po = 18dBm
Vo = 5Vpp
6
0 40 80 120 160 200
Frequency (MHz)
5
V+ 8
+
V- 18
5
10
15
20
-
4 +VCC
19 Compensation
23 Vo
21 -VCC
All undesignated
pins are internally
unconnected. May
be grounded if
desired.
Typical Distortion PerformancKe
Output
Power
10dBm
18dBm
24dBm
20MHz
2nd 3rd
-59 -62
-52 -48
-50 -41
50MHz
2nd 3rd
-52 -60
-45 -46
-36 -32
100MHz
2nd 3rd
-35 -49
-30 -36
-40 -30
General Description
The KH561 is a wideband DC coupled, amplifier that
combines high output drive and low distortion. At
an output of +24dBm (10Vpp into 50), the -3dB
bandwidth is 150MHz. As illustrated in the table
below, distortion performance remains excellent
even when amplifying high-frequency signals to high
output power levels.
With the output current internally limited to 250mA,
the KH561 is fully protected against shorts to ground
and can, with the addition of a series limiting resistor
at the output, withstand shorts to the ±15V supplies.
The KH561 has been designed for maximum flexibility
in a wide variety of demanding applications. The
two resistors comprising the feedback network set
both the gain and the output impedance, without
requiring the series backmatch resistor needed by most
op amps. This allows driving into a matched load
without dropping half the voltage swing through a
series matching resistor. External compensation allows
user adjustment of the frequency response. The
KH561 is specified for both maximally flat frequency
response and 0% pulse overshoot compensations.
The combination of wide bandwidth, high output
power, and low distortion, coupled with gain, output
impedance and frequency response flexibility, makes
the KH561 ideal for waveform generator applications.
Excellent stability driving capacitive loads yields
superior performance driving ADC’s, long transmission
lines, and SAW devices. A companion part, the
KH560, offers superior pulse fidelity for high accuracy
DC coupled applications.
The KH561 is constructed using thin film resistor/bipolar
transistor technology, and is available in the following
versions:
KH561AI
KH561AK
KH561AM
-25°C to +85°C
-55°C to +125°C
-55°C to +125°C
24-pin Ceramic DIP
24-pin Ceramic DIP,
features burn-in
and hermetic testing
24-pin Ceramic DIP,
environmentally screened
and electronically tested
to MIL-STD-883
REV. 1A January 2004

PagesPages 13
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