rev. 4/06
AC251
Typical Values
10 TO 200 MHz
TO-8 CASCADABLE AMPLIFIER
AC251
Low Noise Figure
. . . . . . . . . . . . . . . . . . . . . . . . . . . .
1.2 dB
Medium Output Power
. . . . . . . . . . . . . . . . . . . . . . . .
+13.2 dBm
High Efficiency
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
11 mA Current Drain
High Performance Thin Film
Standard Size TO-8 Package
AC251
TO-8 Package for Amplifiers
0.450 (11.43)
DIA.
0.208 (5.28)
MAX.
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
0.025
(0.64)
SPECIFICATIONS
*
Parameter
Frequency (Min.)
Small Signal Gain (Min.)
Gain Flatness (Max.)
20-200 MHz
10-200 MHz
Noise Figure (Max.)
SWR (Max.)
Input/Output
Typical
10-250 MHz
8.0 dB
Guaranteed
0 to 50° C
-55 to +85° C
10-200 MHz
7.5^ dB
10-200 MHz
7.0^ dB
0.033 (0.84)
0.031 (0.79)
45°
±
3°
+DC VOLTAGE
0.300
(7.62)
DIA. B.C.
±0.2 dB
±0.2 dB
1.2 dB
<1.4:1
±0.3 dB
±0.6 dB
1.7 dB
1.5:1†
±0.4 dB
±0.7 dB
2.2 dB
1.7:1†
Power Output (Min.)
@ 1 dB comp.
DC Current (Max.)
+13.2 dBm
11.0 mA
+12.0 dBm
14.0 mA
+11.5 dBm
17.0 mA
AS251
* Measured in a 50-ohm system at +5 Vdc unless otherwise specified.
^ 0.5 dB lower below 20 MHz. † 0.3 higher below 20 MHz.
SMTO-8 Package for Amplifiers
0.450
(11.43)
0.225
(5.72)
DETAIL A
(NO SCALE)
DC BIAS
0.016
±
0.002
0.010
±
0.002
INTERMODULATION PERFORMANCE
Typical @ 25° C
+5 volts
+54 dBm
+49 dBm
+30 dBm
+8 volts
+58 dBm
+52 dBm
+33 dBm
0
50
Ω
INPUT
0.250
(6.35)
0.450
(11.43)
GND
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
0.008
0.012
ABSOLUTE MAXIMUM RATINGS
Storage Temperature
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . -62 to +125° C
+125° C
Maximum Case Temperature
. . . . . . . . . . . . . . . . . . . . . . . .
Maximum DC Voltage
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+9 Volts
+13 dBm
Maximum Continuous RF Input Power
. . . . . . . . . . . . . . . .
Maximum Short Term Input Power
(1 Minute Max.) . . . . . . 200 Milliwatts
Maximum Peak Power
(3 µsec Max.) . . . . . . . . . . . . . . . . . .
0.5 Watt
Burn-in Temperature
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
+125° C
1
+69° C/Watt
Thermal Resistance
(θjc) . . . . . . . . . . . . . . . . . . . . . . . . . .
Junction Temperature Rise Above Case
(Tjc) . . . . . . . . . .
+4.8° C
1
.0.075
(1.91)
0.225
(5.72)
SEE
DETAIL "A"
0
0.075
(1.91)
0.200
(5.08)
0.350
(8.89)
0.450
(11.43)
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
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)
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