LMH2110 Datasheet, PDF (10/33 Pages) National Semiconductor (TI) – 8 GHz Logarithmic RMS Power Detector with 45 dB Dynamic Range

LMH2110
SNWS022C – JANUARY 2010 – REVISED MARCH 2013
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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.
Log Intercept vs. Frequency
Output Voltage and Log Conformance Error vs.
RF Input Power at 50 MHz
-20
2.4
3
-24
-28
85°C
-32
-36
25°C
-40°C
2.0
2
-40°C
1.6
25°C
1
1.2
0
0.8
-1
85°C
0.4
-2
-40
10M
100M
1G
10G
FREQUENCY (Hz)
Figure 15.
0.0
-3
-40 -30 -20 -10
0
10
RF INPUT POWER (dBm)
Figure 16.
Log Conformance Error (50 units) vs.
RF Input Power at 50 MHz
3
2
-40°C
1
0
-1
85°C
-2
-3
-40 -30 -20 -10
0
10
RF INPUT POWER (dBm)
Figure 17.
Temperature Variation vs.
RF Input Power at 50 MHz
2.0
1.5
-40°C
1.0
0.5
0.0
-0.5
85°C
-1.0
-1.5
-2.0
-40 -30 -20 -10
0
10
RF INPUT POWER (dBm)
Figure 18.
Temperature Variation (50 units) vs.
RF Input Power at 50 MHz
2.0
1.5
-40°C
1.0
0.5
0.0
-0.5
-1.0
85°C
-1.5
-2.0
-40 -30 -20 -10
0
10
RF INPUT POWER (dBm)
Figure 19.
Output Voltage and Log Conformance Error vs.
RF Input Power at 900 MHz
2.4
3
2.0
2
-40°C
1.6
25°C
1
1.2
0
0.8
-1
85°C
0.4
-2
0.0
-3
-40 -30 -20 -10
0
10
RF INPUT POWER (dBm)
Figure 20.
10
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