A m p l i fy t h e H u m a n E x p e r i e n c e
www.cadeka.com
KH563
Wideband, Low Distortion Driver Amplifier
Features
s
s
s
s
s
General Description
The KH563 is a wideband DC coupled, amplifier that
combines high output drive and low distortion. At
an output of +24dBm (10V
pp
into 50Ω), 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 KH563 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 KH563 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
KH563 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 KH563 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 KH563 is constructed using thin film resistor/bipolar
transistor technology, and is available in the following
versions:
KH563AI
-25°C to +85°C
24-pin Ceramic DIP
150MHz bandwidth at +24dBm output
Low distortion
(2nd/3rd: -59/-62dBc @ 20MHz and 10dBm)
Output short circuit protection
User-definable output impedance, gain,
and compensation
Internal current limiting
Applications
s
s
s
s
s
s
s
Output amplification
Arbitrary waveform generation
ATE systems
Cable/line driving
Function generators
SAW drivers
Flash A/D driving and testing
Frequency Response vs. Output Power
16
14
P
o
= 10dBm
V
o
= 2V
pp
Gain (dB)
12
10
8
6
0
P
o
= 24dBm
V
o
= 10V
pp
P
o
= 27.5dBm
V
o
= 15V
pp
P
o
= 18dBm
V
o
= 5V
pp
40
80
120
160
200
Frequency (MHz)
4
+V
CC
Compensation
V
o
V+
8
+
-
19
23
V-
18
Typical Distortion Performance
21
5
10
15
20
-V
CC
Output
Power
10dBm
18dBm
24dBm
20MHz
2nd
3rd
-59
-52
-50
-62
-48
-41
50MHz
2nd
3rd
-52
-45
-36
-60
-46
-32
100MHz
2nd
3rd
-35
-30
-40
-49
-36
-30
REV. 1A January 2008
DATA SHEET
KH563
KH563 Electrical Characteristics
(A
v
= +10V, V
CC
= ±15V, R
L
= 50Ω, R
f
= 410Ω, R
g
= 40Ω, R
o
= 50Ω; unless specified)
NOTES TO THE ELECTRICAL SPECIFICATIONS
The electrical characteristics shown here apply to the specific test conditions shown above (see also Figure 1 in
description of the operation). The KH563 provides an equivalent, non-zero, output impedance determined by the
external resistors. The signal gain to the load is therefore load dependent.
The signal gain shown above (A
v
=
+10) is the no load gain.
The actual gain to the matching 50Ω load used in these specifications is half of this (+5).
The KH563 requires an external compensation capacitor. Unless otherwise noted, this has been set to 10.5pF for
the frequency domain specifications (yielding a maximally flat frequency response) and 12.5pF for the time domain
specifications (yielding a 0% small signal pulse overshoot response).
PARAMETERS
Case Temperature
CONDITIONS
KH563AI
TYP
+25°C
MIN & MAX RATINGS
-25°C
+25°C
+85°C
UNITS
SYM
FREQUENCY DOMAIN RESPONSE
(Max. Flat Compensation)
¦
-3dB bandwidth
¦
maximally flat compensation
V
o
<2V
pp
(+10dBm)
0% overshoot compensation
V
o
<2V
pp
(+10dBm)
large signal bandwidth
Vo <10V
pp
(+24dBm)
(see Frequency Response vs. Output Power plot)
gain flatness
V
o
<2V
pp
(+10dBm)
¦
peaking
0.1 -50MHz
¦
peaking
>50MHz
¦
rolloff
at 100MHz
group delay
to 100MHz
linear phase deviation
to 100MHz
return loss (see
discussion of R
x
)
to 100MHz
DISTORTION
(Max. Flat Compensation)
2nd harmonic distortion
¦
24dBm (10V
pp
):
20MHz
¦
50MHz
100MHz
¦
18dBm (5V
pp
):
20MHz
¦
50MHz
¦
100MHz
¦
10dBm (2V
pp
):
20MHz
¦
50MHz
100MHz
3rd harmonic distortion
¦
24dBm (10V
pp
):
20MHz
¦
50MHz
¦
100MHz
¦
18dBm (5V
pp
):
20MHz
¦
50MHz
100MHz
¦
10dBm (2V
pp
):
20MHz
¦
50MHz
100MHz
2-tone 3rd order
intermod intercept
2
20MHz
50MHz
100MHZ
215
210
150
0
0
0.1
2.9
0.6
-15
>175
>170
>145
<0.50
<1.75
<1.00
–
<1.7
<-11
>185
>180
>135
<0.40
<0.75
<0.75
–
<1.2
<-11
>175
>170
>120
<0.50
<1.00
<1.00
–
<1.7
<-11
MHz
MHz
MHz
dB
dB
dB
ns
°
dB
SSBW
FPBW
GFPL
GFPH
GFR
GD
LPD
RL
-50
-36
-40
-52
-45
-30
-59
-52
-35
-41
-32
-30
-48
-46
-36
-62
-60
-49
38
35
29
<-38
<-29
<-25
<-42
<-30
<-22
<-48
<-36
<-27
<-34
<-26
<-24
<-40
<-37
<-30
<-54
<-49
<-45
>36
>32
>27
<-40
<-29
<-25
<-44
<-35
<-25
<-52
<-40
<-28
<-34
<-26
<-24
<-44
<-37
<-30
<-57
<-52
<-45
>36
>32
>27
<-38
<-22
<-25
<-42
<-30
<-25
<-48
<-40
<-28
<-30
<-21
<-24
<-44
<-35
<-30
<-57
<-49
<-45
>36
>32
>23
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBc
dBm
dBm
dBm
HD2HL
HD2HM
HD2HH
HD2ML
HD2MM
HD2MH
HD2LL
HD2LM
HD2LH
HD3HL
HD3HM
HD3HH
HD3ML
HD3MM
HD3MH
HD3LL
HD3LM
HD3LH
IM3L
IM3M
IM3H
Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are
determined from tested parameters.
2
REV. 1A January 2008
KH563
DATA SHEET
KH563 Electrical Characteristics
(A
v
= +10V, V
CC
= ±15V, R
L
= 50Ω, R
f
= 410Ω, R
g
= 40Ω, R
o
= 50Ω; unless specified)
PARAMETERS
Case Temperature
CONDITIONS
KH563AI
TYP
+25°C
MIN & MAX RATINGS
-25°C
+25°C
+85°C
UNITS
SYM
TIME DOMAIN RESPONSE
(0% Overshoot Compensation)
rise and fall time
2V step
10V step
settling time to 0.5% (time <1µs)
5V step
long term thermal tail (time >1µs)
5V step
slew rate
10V
pp
, 175MHz
overshoot
2V step
maximally flat compensation
0% overshoot compensation
EQUIVALENT INPUT NOISE
voltage
inverting current
non-inverting current
noise floor
integrated noise
noise figure
STATIC, DC PERFORMANCE
* input offset voltage
average temperature coefficient
* non-inverting bias current
average temperature coefficient
* inverting bias current
average temperature coefficient
* power supply rejection ratio (DC)
* supply current
MISCELLANEOUS PERFORMANCE
open loop current gain
average temperature coefficient
inverting input resistance
average temperature coefficient
non-inverting input resistance
non-inverting input capacitance
output voltage range
output current limit
>100KHz
>100KHz
>100KHz
>100KHz
1kHz to 200MHz
>100KHz
1.5
2.4
7
1.5
3300
5
0
2.1
34
2.8
-159
35
15
2.0
35
5.0
20
10.0
100
57
50
10.0
+0.02
14.0
+.02
700
2.7
±10.5
210
<2.0
<2.8
<12
<2.0
>3000
<13
<5
<2.5
<40
<4.5
<-157
<45
<17
<14.0
<100
<35
<175
<50
<200
>54
<60
–
<+.03
–
<+.025
>200
<3.5
–
<250
<1.9
<2.8
<12
<2.0
>2900
<10
<3
<2.5
<40
<4.5
<-157
<45
<17
<5.0
–
<20
–
<30
–
>54
<60
–
–
–
–
>400
<3.5
>±10.0
<250
<2.0
<3.4
<15
<2.0
>2500
<13
<5
<2.5
<45
<5.0
<-157
<45
<17
<15.0
<100
<20
<100
<50
<200
>52
<65
–
<+.02
–
<+.025
>400
<3.5
–
<250
ns
ns
ns
%
V/µs
%
%
nV/√Hz
pA/√Hz
pA/√Hz
dBm/(1Hz)
TRS
TRL
TS
SE
SR
OSMF
OSZO
VN
ICN
NCN
SNF
INV
NF
VIO
DVIO
IBN
DIBN
IBI
DIBI
PSRR
ICC
G
DG
RIN
DRIN
RNI
CNI
VO
OCL
µV
dB
no load
(±2% tolerance)
(±5% tolerance)
to 100MHz
150mA load current
mV
µV/°C
µA
nA/°C
µA
nA/°C
dB
mA
mA/mA
%/°C
Ω
Ω/°C
KΩ
pF
V
mA
Min/max ratings are based on product characterization and simulation. Individual parameters are tested as noted. Outgoing quality levels are
determined from tested parameters.
Absolute Maximum Ratings
V
CC
(reversed supplies will destroy part)
differential input voltage
common mode input voltage
junction temperature (see thermal model)
storage temperature
lead temperature (soldering 10s)
output current (internally limited)
±20V
±3V
±V
CC
+175°C
-65°C to +150°C
+300°C
±250mA
Recommended Operating Conditions
V
CC
I
o
common mode input voltage
output impedance
gain range (no-load voltage gain)
case temperature: AI
±10V to ±15V
″
±200mA
< ±(|V
CC
| -6)V
25Ω to 200Ω
+5 to +80
-25°C to +85°C
Notes
1) * AI: 100% tested at +25°C
¦
AI: sample tested at +25°C
2) Test Tones are set ±100kHz of indicated frequency.
REV. 1A January 2008
3
DATA SHEET
KH563
KH563 Typical Performance Characteristics
(T
A
= +25°C, Circuit in Figure 1; unless specified)
Small Signal Gain and Phase
Normalized Magnitude (1dB/div)
16
P
o
= 10dBm
Frequency Response vs. Gain
A
v
= 10
P
o
= 10dBm
Frequency Response vs. Output Power
16
14
A
v
= 5
P
o
= 10dBm
V
o
= 2V
pp
14
Maximally Flat
0% Overshoot
Phase (degrees)
Gain (dB)
Gain (dB)
12
10
8
6
0
12
10
8
0
Phase
Gain
P
o
= 24dBm
V
o
= 10V
pp
P
o
= 27.5dBm
V
o
= 15V
pp
P
o
= 18dBm
V
o
= 5V
pp
-90
-180
-270
-360
A
v
= 15
Re-compensated at
each gain (see text)
A
v
= 20
6
0
50
100
150
200
250
0
40
80
120
160
200
50
100
150
200
250
Frequency (MHz)
Frequency Response vs. R
L
Normalized Magnitude (1dB/div)
Frequency (MHz)
Frequency (MHz)
Frequency Response vs. R
o
Normalized Magnitude (1dB/div)
561 Plot1
P
i
= -4dBm
16
14
Frequency Response vs. Power Supply
Plot3
561
P
o
= 10dBm
±V
CC
= 18
561 Plot2
P
i
= -4dBm
R
L
= 25Ω
Gain (dB)
R
L
= 50Ω
12
10
8
Re-compensated at
each supply voltage
±V
CC
= 15
±V
CC
= 12
±V
CC
= 10
R
o
= 25Ω
R
o
= 75Ω
R
o
= 100Ω
R
o
= 50Ω
R
L
= 75Ω
R
L
= 100Ω
Fixed gain and
compensated vs. load
6
0
50
100
150
200
250
0
50
100
150
200
250
Response measured with matched load
Re-compensated at each R
o
0
50
100
150
200
250
Frequency (MHz)
Frequency Response vs. Gain (R
o,
R
L
=
561 Plot4
75Ω)
Normalized Magnitude (1dB/div)
V
o
= 2V
pp
Gain
Frequency (MHz)
Gain Flatness/Deviation from Linear Phase
Plot5
561
P
o
= 10dBm
Frequency (MHz)
Internal Current Gain and Phase
560 Plot6
C
x
= 0
R
L
= 0
Gain (0.1dB/div)
Gain (10dB/div)
A
v
= 5
A
v
= 10
A
v
= 15
A
v
= 20
30
20
10
0
-10
-20
-30
Gain
Phase (0.5°/div)
Phase (90°/div)
180
Phase
90
0
-90
-180
Phase
Re-compensated
at each gain
Phase consistant with current
polarity connection of Figure 3
0
50
100
150
200
250
0
20
40
60
80
100
0
100
200
300
400
500
Frequency (MHz)
Two Tone, 3rd-Order Intermodulation
Plot7
561
45
40
35
30
25
Re-compensated
at each gain
A
v
= 15
A
v
= 20
A
v
= 5
Frequency (MHz)
-25
-35
Frequency (MHz)
-25
-35
2nd Harmonic Distortion vs. Frequency
Plot8
561
3rd Harmonic Distortion vs. Frequency
Plot9
561
50MHz
100MHz
Intercept (2.5dB/div)
Distortion (dBc)
Distortion (dBc)
A
v
= 10
100MHz
-45
50MHz
-45
-55
-65
-75
10MHz
-55
-65
-75
20MHz
20MHz
10MHz
20
0
20
40
60
80
100
4
8
12
16
20
24
4
8
12
16
20
24
Frequency (MHz)
Frequency Response Driving C
L
561 Plot10
A
v
= +5
R
o
= 25
V
o
= 2V
pp
Output Power (dB)
-30
-40
-50
-60
C
L
= 50pF
C
L
= 20pF
Output Power (dB)
-30
-40
-50
-60
-70
-80
10
20
30
40
50
70
100
2nd Harmonic Distortion Driving C
561 Plot11
L
Compensation as shown in
Frequency Response plot
3rd Harmonic Distortion Driving C
L
561 Plot12
A
v
= +5
R
o
= 25
V
o
= 2V
pp
C
L
= 20pF
C
L
= 100pF
Distortion (5dBc/div)
Distortion (5dBc/div)
Gain (1dB/div)
C
L
= 100pF
C
L
= 20pF
C
L
= 50pF
C
L
= 50pF
Re-compensated
at each
C
L
-70
C
L
= 100pF
-80
100
150
200
250
10
20
30
40
50
A
v
= +5
R
o
= 25
V
o
= 2V
pp
0
50
70
100
Frequency (MHz)
Frequency (MHz)
Frequency (MHz)
561 Plot13
561 Plot14
561 Plot15
REV. 1A January 2008
4
KH563
DATA SHEET
KH563 Typical Performance Characteristics
(T
A
= +25°C, Circuit in Figure 1; unless specified)
Small Signal Pulse Response
1.2
Maximally Flat
Compensation
Large Signal Pulse Response
6
Maximally Flat
Compensation
Uni-Polar Pulse Response
6
Maximally Flat
Compensation
Output Voltage (V)
Output Voltage (V)
0.4
0
-0.4
-0.8
-1.2
0% Overshoot
Compensation
2
0
-2
-4
-6
0% Overshoot
Compensation
Output Voltage (V)
0.8
4
4
2
0
-2
-4
-6
Time (2ns/div)
Time (5ns/div)
Time (5ns/div)
Settling Time into 50Ω Load
2.0
1.5
561 Plot16
Settling Time into 500Ω Load
2.0
1.5
561 Plot17
0
-20
-40
-60
-80
-100
Reverse Transmission Gain & Phase
561
)
(S
12
Plot18
Reverse Phase (degrees)
5V Output Step
5V Output Step
Reverse Gain (dB)
Settling Error (%)
Settling Error (%)
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
10
-9
10
-7
10
-5
10
-3
10
-1
10
1
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
10
-9
10
-7
10
-5
10
-3
10
-1
10
1
Gain
Phase
0
-45
-90
-135
-180
0
50
100
150
200
250
Time (sec)
Settling Time into 50pF Load
2.0
1.5
Time (sec)
Frequency (MHz)
561 Plot19
0
-5
-10
Output Return Loss (S
22
)
R
o
= 50Ω
R
x
= 0Ω
561 Plot20
0
-10
-20
Input Return Loss (S
11
)
561 Plot22
5V Output Step
Settling Error (%)
Magnitude (dB)
Magnitude (dB)
1.0
0.5
0
-0.5
-1.0
-1.5
-2.0
10
-9
10
-7
10
-5
10
-3
10
-1
10
1
Phase (degrees)
-15
-20
-25
-30
-35
-40
-45
-50
0
Re-compensated
at each R
x
R
o
= 40Ω
R
x
= 10Ω
-30
-40
-50
Magnitude
0
Phase
-45
-90
-135
Re-compensated
at each R
x
-180
100
150
200
250
50
100
150
200
250
0
50
Time (sec)
-1dB Compensation Point
34
Frequency (MHz)
Frequency (MHz)
561 Plot21
22
21
20
19
18
17
16
15
14
13
12
80
100
Noise Figure
561 Plot24
100
60
Equivalent Input Noise
561 Plot23
100
60
-1dB Compensation (dBm)
33
Noise Voltage (nV/√Hz)
Noise Current (pA/√Hz)
Noise Figure (dBm)
32
31
30
29
28
27
26
25
24
0
20
40
60
Match Load
Re-compensated at each load
R
o
= 50Ω
R
o
= 75Ω
R
o
= 100Ω
R
o
= 75Ω
R
o
= 50Ω
40
20
10
6
4
2
1
Inverting Current 34pA/√Hz
40
20
10
6
4
2
Non-Inverting Current 2.8pA/√Hz
R
o
= 25Ω
Non-inverting input impedance
matched to source impedance
Non-Inverting Voltage 2.1nV/√Hz
5
10
15
20
25
30
100
1k
10k
100k
1M
10M
1
100M
Frequency (MHz)
Group Delay
4.0
3.8
3.6
No Load Gain
Frequency (Hz)
PSRR
100
90
80
70
60
50
40
30
20
10
0
25
100
1k
10k
100k
1M
10M
100M
561 Plot25
Gain Error at Load (%)
5
4
3
2
1
0
-1
-2
-3
-4
-5
Gain Error Band (Worst Case, DC)
561 Plot26
R
o
(nominal) = 50Ω
R
L
= 50Ω
±
0%
561 Plot27
Group Delay (ns)
3.2
3.0
2.8
2.6
2.4
2.2
2.0
0
50
100
150
200
250
Aperture set to 5%
of span (12.8MHz)
R
f
and R
g
tolerance =
±0.1%
R
f
and R
g
tolerance =
±1%
5
9
13
17
21
Frequency (MHz)
No Load Gain
PSRR (dB)
3.4
Frequency (Hz)
561 Plot28
REV. 1A January 2008
561 Plot29
561 Plot30
5