Datasheet LT5538 (Analog Devices) - 4
| Manufacturer | Analog Devices |
| Description | 40MHz to 3.8GHz RF Power Detector with 75dB Dynamic Range |
| Pages / Page | 12 / 4 — ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply … |
| File Format / Size | PDF / 241 Kb |
| Document Language | English |
ELECTRICAL CHARACTERISTICS. The. denotes the specifi cations which apply over the full operating
Model Line for this Datasheet
Text Version of Document
LT5538
ELECTRICAL CHARACTERISTICS The
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C, VCC = 5V, ENBL = 5V. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Sensitivity –69.5 dBm Output Variation vs Temperature Normalized to Output at 25°C PIN = –50dBm; –40°C < TA < 85°C ● 0.3/0.3 dB PIN = –30dBm; –40°C < TA < 85°C ● 0.7/–0.3 dB PIN = –10dBm; –40°C < TA < 85°C ● 1.1/–0.9 dB
fRF = 3600 MHz
RF Input Power Range –65 to 10 dBm Linear Dynamic Range ±1 dB Linearity Error (Note 3) 57 dB Output Slope 18 mV/dB Logarithmic Intercept (Note 5) –81.4 dBm Sensitivity –63 dBm Output Variation vs Temperature Normalized to Output at 25°C PIN = –45dBm; –40°C < TA < 85°C ● 0.6/–0.3 dB PIN = –25dBm; –40°C < TA < 85°C ● 0.9/–0.6 dB PIN = –5dBm; –40°C < TA < 85°C ● 1.4/–1.2 dB
Output Interface
Output DC Voltage No RF Signal Present 0.350 V Output Impedance 150 Ω Source Current 10 mA Sink Current 200 μA Rise Time 0.5V to 1.6V, 10% to 90%, fRF = 880 MHz 100 ns Fall Time 1.6V to 0.5V, 10% to 90%, fRF = 880 MHz 180 ns
Power Up/Down
ENBL = High (On) ● 1 V ENBL = Low (Off) ● 0.3 V ENBL Input Current VENBL = 5V 205 μA Turn ON time 300 ns Turn OFF Time 1 μs
Power Supply
Supply Voltage 3 5.25 V Supply Current 29 36 mA Shutdown Current ENBL = Low 1 100 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings to –20dBm. The dynamic range is defi ned as the range over which the may cause permanent damage to the device. Exposure to any Absolute linearity error is within ±1dB. Maximum Rating condition for extended periods may affect device
Note 4:
Sensitivity is defi ned as the minimum input power required for the reliability and lifetime. linearity error within 3dB of the ideal log-linear transfer curve.
Note 2:
Specifi cations over the –40°C to 85°C temperature range are
Note 5:
Logarithmic Intercept is an extrapolated input power level from the assured by design, characterization and correlation with statistical process best-fi tted log-linear straight line, where the output voltage is 0V. control.
Note 3:
The linearity error is calculated by the difference between the incremental slope of the output and the average slope from –50dBm 5538f 4
ELECTRICAL CHARACTERISTICS The
●
denotes the specifi cations which apply over the full operating temperature range, otherwise specifi cations are at TA = 25°C, VCC = 5V, ENBL = 5V. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
Sensitivity –69.5 dBm Output Variation vs Temperature Normalized to Output at 25°C PIN = –50dBm; –40°C < TA < 85°C ● 0.3/0.3 dB PIN = –30dBm; –40°C < TA < 85°C ● 0.7/–0.3 dB PIN = –10dBm; –40°C < TA < 85°C ● 1.1/–0.9 dB
fRF = 3600 MHz
RF Input Power Range –65 to 10 dBm Linear Dynamic Range ±1 dB Linearity Error (Note 3) 57 dB Output Slope 18 mV/dB Logarithmic Intercept (Note 5) –81.4 dBm Sensitivity –63 dBm Output Variation vs Temperature Normalized to Output at 25°C PIN = –45dBm; –40°C < TA < 85°C ● 0.6/–0.3 dB PIN = –25dBm; –40°C < TA < 85°C ● 0.9/–0.6 dB PIN = –5dBm; –40°C < TA < 85°C ● 1.4/–1.2 dB
Output Interface
Output DC Voltage No RF Signal Present 0.350 V Output Impedance 150 Ω Source Current 10 mA Sink Current 200 μA Rise Time 0.5V to 1.6V, 10% to 90%, fRF = 880 MHz 100 ns Fall Time 1.6V to 0.5V, 10% to 90%, fRF = 880 MHz 180 ns
Power Up/Down
ENBL = High (On) ● 1 V ENBL = Low (Off) ● 0.3 V ENBL Input Current VENBL = 5V 205 μA Turn ON time 300 ns Turn OFF Time 1 μs
Power Supply
Supply Voltage 3 5.25 V Supply Current 29 36 mA Shutdown Current ENBL = Low 1 100 μA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings to –20dBm. The dynamic range is defi ned as the range over which the may cause permanent damage to the device. Exposure to any Absolute linearity error is within ±1dB. Maximum Rating condition for extended periods may affect device
Note 4:
Sensitivity is defi ned as the minimum input power required for the reliability and lifetime. linearity error within 3dB of the ideal log-linear transfer curve.
Note 2:
Specifi cations over the –40°C to 85°C temperature range are
Note 5:
Logarithmic Intercept is an extrapolated input power level from the assured by design, characterization and correlation with statistical process best-fi tted log-linear straight line, where the output voltage is 0V. control.
Note 3:
The linearity error is calculated by the difference between the incremental slope of the output and the average slope from –50dBm 5538f 4
