PRELIMINARY
AC238
Typical Values
5 TO 200 MHz
TO-8 CASCADABLE AMPLIFIER
AC238
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
32.0 dB
2.6 dB
+15.5 dBm
+38 dB
High Gain
. . . . . . . . . . . . . . . .
Low Noise
. . . . . . . . . . . . . . .
Medium Output Level
. . . . . .
High Reverse Isolation
. . . . .
High Efficiency
High Performance Thin Film
Standard Size TO-8 Package
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
AC238
TO-8 Package for Amplifiers
0.450 (11.43)
DIA.
0.208 (5.28)
MAX.
0.025
(0.64)
SPECIFICATIONS
Parameter
Frequency (Min.)
Small Signal Gain (Min.)
Gain Flatness (Max.)
Noise Figure (Max.)
SWR (Max.)
Input/Output
0.185
±
0.015
(4.70
±
0.38)
0.018
±
0.002
DIA. PIN
(0.46
±
0.05)
(4) PLCS
0.504 (12.80)
DIA.
50 OHM INPUT
GROUND
50 OHM OUTPUT
Typical
5-300 MHz
32.0 dB
±0.2 dB
2.6 dB
1.1:1
Guaranteed*
0 to 50° C
-55 to +85° C
5-200 MHz
31.0 dB
±0.4 dB
3.0 dB
1.3:1
5-200 MHz
30.0 dB
0.033 (0.84)
±0.7 dB
3.5 dB
1.4:1
+DC VOLTAGE
0.031 (0.79)
45°
±
3°
0.300
(7.62)
DIA. B.C.
Power Output (Min.)
@ 1dB comp.
Reverse Isolation
DC Current (Max.)
+15.5 dBm
38 dB
64 mA
+14.5 dBm
—
67 mA
+14.0 dBm
—
69 mA
AS238
SMTO-8 Package for Amplifiers
DETAIL A
(NO SCALE)
DC BIAS
0.016
±
0.002
0.010
±
0.002
* Measured in a 50-ohm system at +5 Vdc unless otherwise specified.
Typical @ 25° C
AC238
+54.5 dBm
+48.5 dBm
+30.0 dBm
0
50
Ω
INPUT
0.250
(6.35)
0.450
(11.43)
.0.075
(1.91)
GND
0.225
(5.72)
0.375
(9.53)
0.040
±
0.012
(1.02
±
0.30)
(4) PLCS
0.050
(1.27)
(4) PLCS
0.100
(2.54)
(4) PLCS
0.170
(4.32)
0.016
±
0.002
(0.41
±
0.05)
(4) PLCS
50
Ω
OUTPUT
Second Order Harmonic Intercept Point.
. . . . . . . . . . . . .
Second Order Two Tone Intercept Point
. . . . . . . . . . . . . .
Third Order Two Tone Intercept Point
. . . . . . . . . . . . . . . .
0.225
(5.72)
0
INTERMODULATION PERFORMANCE
0.450
(11.43)
0.008
0.012
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
. . . . . . . . . . . . . . . . . . . . . . .
Maximum Case Temperature
. . . . . . . . . . . . . . . . .
Maximum DC Voltage
. . . . . . . . . . . . . . . . . . . . . . .
Maximum Continuous RF Input Power
. . . . . . . . .
Maximum Short Term Input Power
(1 Minute Max.)
Maximum Peak Power
(3 µsec Max.) . . . . . . . . . . .
Burn-in Temperature
. . . . . . . . . . . . . . . . . . . . . . .
Thermal Resistance
1
(θjc) . . . . . . . . . . . . . . . . . . .
Junction Temperature Rise Above Case
(Tjc) . . . .
1
SEE
DETAIL "A"
0
0.075
(1.91)
0.200
(5.08)
0.350
(8.89)
0.450
(11.43)
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
-62 to 125° C
+125° C
+10 Volts
+10 dBm
50 Milliwatts
0.5 Watt
+125°C
—° C/Watt
—° C
0
0.031
(0.79)
0.031
(0.79)
0.010 (TYP.)
(0.25)
45°
0.008
±
0.001
(0.20
±
0.03)
Thermal resistance is based on total power dissipation.
DIMENSIONS ARE IN INCHES (MILLIMETERS)
1
408-522-3838 • Fax: 408-522-3839 • Check for updates: www.cougarcorp.com
2003
DIY/Open Source Hardware
京公网安备 11010802033920号
EEWORLD
