
LF-to-2.5GHz Dual Logarithmic Detector/
Controller for Power, Gain, and VSWR Measurements
Typical Operating Characteristics (continued)
(MAX2016 EV kit, V CC = 3.3V, R 1 = R 2 = R 3 = 0 Ω , CSETL = CSETH = V CC , T A = +25°C, unless otherwise noted.)
DIFFERENTIAL OUTPUT VOLTAGE
vs. A/B DIFFERENCE
DIFFERENTIAL OUTPUT-VOLTAGE ERROR
vs. A/B DIFFERENCE
2.5
2.0
1.5
f IN = 2170MHz
P RFINB = -25dBm P RFINA IS SWEPT
T A = -20 ° C
T A = +85 ° C
T A = +25 ° C
3
2
1
0
f IN = 2170MHz
P RFINB = -25dBm
NORMALIZED TO DATA
AT +25 ° C
T A = -20 ° C
1.0
-1
T A = +85 ° C
0.5
0
-2
-3
-45
-25
-5
15
35
-40
-20
0
20
40
MAGNITUDE RATIO (dB)
DIFFERENTIAL OUTPUT VOLTAGE
vs. A/B DIFFERENCE
MAGNITUDE RATIO (dB)
DIFFERENTIAL OUTPUT-VOLTAGE ERROR
vs. A/B DIFFERENCE
2.5
2.0
1.5
f IN = 2500MHz
P RFINB = -23dBm P RFINA IS SWEPT
T A = -20 ° C
T A = +25 ° C
T A = +85 ° C
3
2
1
0
f IN = 2500MHz
P RFINB = -23dBm
NORMALIZED TO DATA
AT +25 ° C
T A = -20 ° C
1.0
-1
T A = +85 ° C
0.5
0
-2
-3
-40
-20
0
20
40
-40
-20
0
20
40
MAGNITUDE RATIO (dB)
DIFFERENTIAL OUTPUT-VOLTAGE BALANCE
1.15
-10
MAGNITUDE RATIO (dB)
S 11 MAGNITUDE
T A = +25 ° C
T A = +85 ° C
T A = -20 ° C
1.10
1.05
f IN = 1900MHz
T A = +25 ° C T A = +85 ° C T A = -20 ° C
P RFINA = P RFINB + 5dB
P RFINA = P RFINB
-15
-20
-25
-30
T A = +85 ° C
T A = +25 ° C
T A = -20 ° C
1.00
T A = +85 ° C
-35
-40
0.95
0.90
0.85
T A = +25 ° C
T A = -20 ° C
P RFINA = P RFINB - 5dB
-45
-50
-55
-60
-60
-45
-30
-15
0
0
0.5
1.0
1.5
2.0
2.5
3.0
P RFINA (dBm)
FREQUENCY (GHz)
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