KH561
DATA SHEET
KH561 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)
0.8
0.4
0
-0.4
-0.8
-1.2
0% Overshoot
Compensation
4
2
0
-2
-4
-6
Output Voltage (V)
0% Overshoot
Compensation
4
2
0
-2
-4
-6
Time (2ns/div)
Time (5ns/div)
Time (5ns/div)
Settling Time into 50Ω Load
2.0
1.5
5
2.0
1.5
Settling Time into 500Ω Load
5
0
-20
Reverse Transmission Gain & Phase
5
12
)
(S
Reverse Phase (degrees)
5V Output Step
5V Output Step
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
Reverse Gain (dB)
-40
-60
-80
-100
Phase
Gain
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)
5
Output Return Loss (S
22
)
0
-5
-10
R
o
= 50Ω
R
x
= 0Ω
5
Input Return Loss (S
11
)
0
-10
-20
5
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
50
100
150
200
250
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
0
50
Time (sec)
-1dB Compensation Point
34
Frequency (MHz)
Frequency (MHz)
5
22
21
Noise Figure
5
100
60
Equivalent Input Noise
5
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
R
o
= 50Ω
R
o
= 75Ω
20
19
18
17
16
15
14
13
12
R
o
= 25Ω
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
Match Load
Re-compensated at each load
Non-inverting input impedance
matched to source impedance
Non-Inverting Voltage 2.1nV/√Hz
40
60
80
100
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
5
Gain Error at Load (%)
5
4
3
1
0
-1
-2
-3
-4
-5
2
Gain Error Band (Worst Case, DC)
5
R
o
(nominal) = 50Ω
R
L
= 50Ω
±
0%
5
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%
PSRR (dB)
17
21
25
3.4
10
0
100
1k
10k
100k
1M
10M
100M
5
9
13
Frequency (MHz)
No Load Gain
Frequency (Hz)
5
REV. 1A January 2004
5
5
5
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
