LT5534_15 Datasheet, PDF (3/10 Pages) Linear Technology – 50MHz to 3GHz RF Power Detector with 60dB Dynamic Range

LT5534
ELECTRICAL CHARACTERISTICS V_CC = 3V, EN = 3V, T_A = 25°C, source impedance = 50Ω, unless otherwise
noted. Test circuit shown in Figure 1. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Output Slope
35
mV/dB
Output Variation vs Temperature
Output Interface
P_IN = –48dBm to –14dBm, T_A = –40°C to 85°C
0.025
dB/°C
Output DC Voltage
No RF Input Signal
0
142
380
mV
Output Impedance
Output Bandwidth
Full-Scale Setting Time
Sinking/Sourcing
Input from No Signal to –2dBm, to 90%
32
30
38
10/200
Ω
MHz
ns
mA/µA
V_CC = 3V, EN = 3V, T_A = 25°C, unless otherwise noted. Test circuit shown in Figure 1. (Note 2)
PARAMETER
CONDITIONS
MIN
TYP
MAX
UNITS
Power Up/Down
Turn-On Time
200
ns
Turn-Off Time
800
ns
EN = High (On)
0.9
V
EN = Low (Off)
0.6
V
Power Supply
Supply Voltage
Supply Current
Shutdown Current
EN = High
EN = Low
2.7
5.25
V
5
7
9
mA
0.1
10
µA
Note 1: Stresses beyond those listed under Absolute Maximum Ratings
may cause permanent damage to the device. Exposure to any Absolute
Maximum Rating condition for extended periods may affect device
reliability and lifetime.
Note 2: Specifications over the –40°C to 85°C temperature range are assured
by design, characterization and correlation with statistical process control.
Note 3: The linearity error is calculated by the difference between the
incremental slope of the output and the average output slope from
–48dBm to –14dBm. The dynamic range is defined as the range over
which the linearity error is within ±3dB.
TYPICAL PERFORMANCE CHARACTERISTICS (Test circuit shown in Figure 1)
Output Voltage vs Frequency
2.8
V_CC = 3V
2.4 ^{TA = 25°C}
900MHz
2.0
50MHz
1.9GHz
1.6
2.5GHz
1.2
0.8
0.4
0
–70 –60
–50 –40 –30 –20 –10 0
RF INPUT POWER (dBm)
5534 G01
Linearity Error vs Frequency
3
50MHz
2
900MHz
V_CC = 3V
T_A = 25°C
1
0
2.5GHz
–1
1.9GHz
–2
–3
–70 –60 –50 –40 –30 –20 –10 0
RF INPUT POWER (dBm)
5534 G02
Output Voltage vs RF Input Power
2.4
3
V_CC = 3V
AT 50MHz
2.0
2
1.6
1
1.2
0
0.8
–1
0.4
0
–60
T_A = 25°C –2
T_A = 85°C
TA = –40°C
–3
–50 –40 –30 –20 –10 0
RF INPUT POWER (dBm)
5534 G03
5534fc
3