LMH2110 Datasheet, PDF (9/33 Pages) National Semiconductor (TI) – 8 GHz Logarithmic RMS Power Detector with 45 dB Dynamic Range

LMH2110
www.ti.com
SNWS022C – JANUARY 2010 – REVISED MARCH 2013
Typical Performance Characteristics (continued)
Unless otherwise specified: T_A = 25°C, V_BAT = 2.7V, RFin = 1900 MHz CW (Continuous Wave, unmodulated). Specified errors
are input referred.
RF Input Impedance vs. Frequency,
Resistance (R) and Reactance (X)
100
Power Supply Rejection Ratio vs. Frequency
70
R
75
60
100
7550
50
50
25
25
40
0
-25
30
-5205
-75
X
-50
-100
-75
MEASURED ON BUMP
-100
10M
100M
1G
10G
20
10
0
10
100
1k
10k
100k
FREQUENCY (Hz)
FREQUENCY (Hz)
Figure 9.
Figure 10.
Output Voltage Noise vs. Frequency
Output Voltage vs. RF Input Power
2.4
2.0
5.8 GHz
3.5 GHz
1.6
1.9 GHz
900 MHz
1.2
50 MHz
0.8
Figure 11.
0.4
0.0
-40
8 GHz
-30 -20 -10
0
10
RF INPUT POWER (dBm)
Figure 12.
Output Voltage vs. Frequency
2.00
1.75
1.50
1.25
1.00
0.75
0.50
0.25
RF_IN = 0 dBm
RF_IN = -5 dBm
RF_IN = -10 dBm
RF_IN = -15 dBm
RF_IN = -20 dBm
RF_IN = -25 dBm
0.00
10M
100M
1G
10G
FREQUENCY (Hz)
Figure 13.
Log Slope vs. Frequency
48
46
-40°C
44
85°C
42
25°C
40
38
10M
100M
1G
10G
FREQUENCY (Hz)
Figure 14.
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