LMH2120 Datasheet, PDF (7/34 Pages) National Semiconductor (TI) – Linear RMS power detector particularly suited for accurate

LMH2120
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SNWS021C – JULY 2010 – REVISED FEBRUARY 2013
Typical Performance Characteristics
Unless otherwise specified T_A = 25°C, V_BAT = 2.7V, RF_IN = 1900 MHz CW (Continuous Wave, unmodulated). Specified errors
are input referred.
Supply Current
vs.
Supply Voltage (Active)
5
EN = HIGH
4
3
2
85°C
25°C
-40°C
1
0
0
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
Figure 5.
Supply Current
vs.
Supply Voltage (Shutdown)
8
EN = LOW
7
6
5
4
85°C
3
2
25°C
1
-40°C
0
0
1
2
3
4
5
6
SUPPLY VOLTAGE (V)
Figure 6.
Supply Current
vs.
Enable Voltage (EN)
5
Supply Current
vs.
RF Input Power
6
4
85°C
3
25°C
2
1
-40°C
5
4
3
2
-40°C 25°C ^85°C
1
0
0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2
ENABLE VOLTAGE (V)
Figure 7.
0
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 8.
Output Sourcing Current
vs.
RF Input Power
60
Output Sinking Current
vs.
RF Input Power
60
50
50
40
-40°C
25°C
30
85°C
20
40
25°C -40°C
30
85°C
20
10
OUT = 0V
0
RFin = 1900 MHz
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 9.
10
OUT = 2.5V
0
RFin = 1900 MHz
-50 -40 -30 -20 -10 0 10
RF INPUT POWER (dBm)
Figure 10.
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