NE686 SERIES
TYPICAL PERFORMANCE CURVES (TA = 25°C)
NE68618
NE68633
INSERTION GAIN vs.
COLLECTOR CURRENT
NOISE FIGURE vs.
COLLECTOR CURRENT
4
14
f = 2 GHz
f = 2 GHz
12
3
2
1
0
10
2 V
V
CE = 1 V
CE = 2 V
V
8
V
CE = 1 V
6
4
10
100
1
2
5
20
1
2
5
10
Collector Current, IC (mA)
Collector Current, IC (mA)
NE68618
GAIN BANDWIDTH PRODUCT
vs. COLLECTOR CURRENT
D.C. CURRENT GAIN vs.
COLLECTOR CURRENT
18
16
500
f = 2 GHz
200
100
50
2 V
V
14
12
V
CE = 2 V
CE = 1 V
10
8
VCE = 1 V
20
10
6
4
1
2
5
10
20
50
100
1
2
5
10
Collector Current, IC (mA)
Collector Current, IC (mA)
NE68630
FEED-BACK CAPACITANCE vs.
COLLECTOR TO BASE VOLTAGE
COLLECTOR CURRENT vs.
BASE TO EMITTER VOLTAGE
0.8
50
40
30
V
CE = 2 V
f = 1 MHz
0.6
0.4
0.2
20
10
0
1.0
0
0.5
0.0
8.0
10.0
2.0
4.0
6.0
Base to Emitter Voltage, VBE (V)
Collector to Base Voltage, VCB (V)
CEL [ CALIFORNIA EASTERN LABS ]
