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MAX2640 Datasheet, PDF (3/8 Pages) Maxim Integrated Products – 400MHz to 2500MHz SiGe Ultra-Low-Noise Amplifiers
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400MHz to 2500MHz SiGe
Ultra-Low-Noise Amplifiers
RF ELECTRICAL CHARACTERISTICS (continued)
(VCC = +3.0V, PRFIN = -34dBm, ZO = 50Ω, TA = +25°C, unless otherwise noted.) (Notes 2 and 3)
PARAMETER
CONDITIONS
MIN
MAX2641 (fRFIN = 1575MHz)
Gain
Noise Figure
(Note 4)
Input Return Loss
Output Return Loss
Reverse Isolation
Input 1dB Gain Compression Point
Input Third-Order Intercept Point
(Note 7)
MAX2641 (fRFIN = 2450MHz)
Gain
Noise Figure
(Note 4)
Input Return Loss
Output Return Loss
Reverse Isolation
Input 1dB Gain Compression Point
Input Third-Order Intercept Point
(Note 8)
TYP
15.7
1.2
-8
-15
-31
-21
+1.4
13.5
1.5
-10
-11
-24
-19
-2.5
MAX UNITS
dB
dB
dB
dB
dB
dBm
dBm
dB
dB
dB
dB
dB
dBm
dBm
Note 2: Guaranteed by design and characterization.
Note 3: Measured using typical operating circuit. Input and output impedance matching networks were optimized for best simulta-
neous gain and noise-figure performance.
Note 4: External component and circuit losses degrade noise-figure performance. Specification excludes external component and
circuit board losses.
Note 5: Measured with two input tones, f1 = 899MHz, f2 = 901MHz, both at -34dBm per tone.
Note 6: Measured with two input tones, f1 = 1899MHz, f2 = 1901MHz, both at -34dBm per tone.
Note 7: Measured with two input tones, f1 = 1574MHz, f2 = 1576MHz, both at -34dBm per tone.
Note 8: Measured with two input tones, f1 = 2449MHz, f2 = 2451MHz, both at -34dBm per tone.
Typical Operating Characteristics
(VCC = +3V, PRFIN = -34dBm, Typical Operating Circuits, TA = +25°C, unless otherwise noted.)
MAX2640
SUPPLY CURRENT vs. SUPPLY VOLTAGE
6
5
TA = +85°C
4
TA = +25°C
3
TA = -40°C
2
1
0
2
3
4
5
6
VCC (V)
MAX2640 MATCHED AT 900MHz
GAIN vs. FREQUENCY
16
TA = -40°C
15
TA = +25°C
14
TA = +85°C
13
12
800
840 880 920 960 1000
FREQUENCY (MHz)
MAX2640 MATCHED AT 900MHz
NOISE FIGURE vs. FREQUENCY
3
TA = +85°C
2
TA = +25°C
1
TA = -40°C
0
800
840 880 920 960 1000
FREQUENCY (MHz)
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