KH205
DATA SHEET
KH205 Typical Performance Characteristics
(T
A
= +25°C, A
v
= +20, V
CC
= ±15V, R
L
= 200Ω; unless specified)
Non-Inverting Frequency Response
Normalized Magnitude (1dB/div)
Normalized Magnitude (1dB/div)
Inverting Frequency Response
Frequency Response vs. External R
f
A
v
= +50
R
f
= 1.5kΩ
R
f
= 2kΩ
R
f
= 3kΩ
R
f
= 1.5kΩ
A
v
= +20
R
f
= 3kΩ
R
f
= 2kΩ
Gain
A
v
= +20
A
v
= +50
Phase
A
v
= +50
A
v
= +20
A
v
= +7
A
v
= -7
Phase
A
v
= -50
A
v
= -20
A
v
= -7
A
v
= -50
A
v
= -20
A
v
= -1
Relative Gain (5dB/div)
A
v
= +7
Gain
A
v
= -1
Phase (45°/div)
Phase (45°/div)
R
f
= 1.5kΩ
R
f
= 2kΩ
A
v
= +7
R
f
= 3kΩ
0
20
40
60
80 100 120 140 160 180 200
0
20
40
60
80 100 120 140 160 180 200
0
20
40
60
80 100 120 140 160 180 200
Frequency (MHz)
Large Signal Gain and Phase
Frequency (MHz)
Frequency (MHz)
2
1.0
0.9
Relative Bandwidth vs. V
CC
2
Gain and Phase for Various Loads
2
R
L
= 50Ω
Gain
R
L
= 100Ω
R
L
= 200Ω
R
L
= 1kΩ
V
o
= 10V
pp
Magnitude (1dB/div)
Gain
0.8
0.7
0.6
0.5
0.4
0.3
0.2
Magnitude (1dB/div)
Relative Bandwidth
Phase (45°/div)
Phase (45°/div)
Phase
Phase
R
L
= 1kΩ
R
L
= 200Ω
R
L
= 100Ω
R
L
= 50Ω
0
15
30
45
60
75
90 105 120 135 150
4
6
8
10
12
14
16
0
20
40
60
80 100 120 140 160 180 200
Frequency (MHz)
Small Signal Pulse Response
Output Voltage (0.4V/div)
±V
CC
(V)
Frequency (MHz)
2
Output Voltage (2V/div)
Large Signal Pulse Response
A
v
= +20
2
Settling Time
0.20
0.15
2
10V step
R
f
= 2kΩ (external)
A
v
= +20
Settling Error (%)
A
v
= -20
0.10
0.05
0
-0.05
-0.10
-0.15
-0.20
A
v
= -20
Time (5ns/div)
Time (5ns/div)
Time (5ns/div)
2nd and 3rd Harmonic Distortion
2
-30
-35
-40
V
o
= 2V
pp
2-Tone 3rd Order Intermodulation Intercept
2
45
40
100
CMRR and PSRR
2
PSRR and CMRR (dB)
80
PSRR
Distortion (dBc)
-45
-50
-55
-60
-65
-70
-75
-80
1
10
100
3rd
2nd
Intercept (dBm)
35
30
25
20
0
20
40
60
80
100
60
40
20
0
CMRR
100
1k
10k
100k
1M
10M
100M
Frequency (MHz)
Equivalent Input Noise
100
Frequency (MHz)
Frequency (Hz)
2
Thermal Model
100
200°C/W
T
j(pnp)
P
pnp
200°C/W
T
j(npn)
P
npn
17.5
°
C/W
T
j(circuit)
P
circuit
+
-
2
T
case
2
Noise Voltage (nV/√Hz)
θ
ca
Noise Current (pA/√Hz)
Inverting Current 18.3 pA/√Hz
T
ambient
10
10
P
circuit
= [(+V
CC
) – (-V
CC
)]
2
/ 1.77kΩ
P
xxx
= [(±V
CC
) – V
out
(% duty cycle)
–
Non-Inverting Current 2.5 pA/√Hz
(I
col
) (R
col
+ 6)]
(I
col
)
I
col
= V
out
/R
load
or 3mA, whichever is greater.
(Include feedback R in R
load
.)
R
col
is a resistor (33Ω recommended) between the
xxx collector and ±V
CC
.
T
j (pnp)
= P
pnp
(200 +
θ
ca
) + (P
cir
+ P
npn
)θ
ca
+ T
a
,
similar for T
j (npn)
.
T
j (cir)
= P
cir
(17.5 +
θ
ca
) + (P
pnp
+ P
npn
)θ
ca
+ T
a
.
Voltage 1.8 nV/√Hz
0
100
1k
10k
100k
1M
100
0
100M
(For positive V
o
and V
CC
, this is the power in the
npn output stage.)
(For negative V
o
and V
CC
, this is the power in the
pnp output stage.)
Frequency (Hz)
2
REV. 1A January 2004
3
CADEKA [ CADEKA MICROCIRCUITS LLC. ]
