Datasheet LT5537 (Analog Devices) - 4
| Fabricante | Analog Devices |
| Descripción | Wide Dynamic Range RF/IF Log Detector |
| Páginas / Página | 16 / 4 — ELECTRICAL CHARACTERISTICS VCC = 3V, ENBL = 3V, TA = 25. C, unless … |
| Formato / tamaño de archivo | PDF / 315 Kb |
| Idioma del documento | Inglés |
ELECTRICAL CHARACTERISTICS VCC = 3V, ENBL = 3V, TA = 25. C, unless otherwise specified. (Notes 3, 4). PARAMETER. CONDITIONS
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LT5537
ELECTRICAL CHARACTERISTICS VCC = 3V, ENBL = 3V, TA = 25
°
C, unless otherwise specified. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply
Supply Voltage (Note 6) 2.7 5.25 V Supply Current VCC = 3V 10 13.5 15 mA Shutdown Current ENBL = Low 500 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
The maximum output voltage is limited to approximately VCC – may cause permanent damage to the device. Exposure to any Absolute 0.6V. Either the output slope should be reduced or input power level Maximum Rating condition for extended periods may affect device should be limited in order to avoid saturating the output circuit when VCC < reliability and lifetime. 3V. See discussion in “Dynamic Range” section.
Note 2:
Maximum differential AC input voltage between IN+ and IN– is 4V
Note 7:
Sensitivity is defined as the minimum input power required for the peak. Equivalent to 22dBm with 50Ω input impedance or 16dBm with output voltage to be within 3dB of the ideal log-linear transfer curve. 200Ω input impedance (1:4 transformer used). Sensitivity can be improved by as much as 10dB by using a narrowband
Note 3:
Tests are performed as shown in the configuration of Figure 13. input impedance transformation network. See discussion in “Input
Note 4:
Specifications over the –40°C to 85°C temperature range are Matching” section. assured by design, characterization and correlation with statistical process
Note 8:
The output slope is adjustable using an external pull-down resistor control. (R1). See Applications Information for description of the output circuit.
Note 5:
Operation at lower frequency is possible as described in the “Low Frequency Operation” section in Applications Information.
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Supply Voltage ENBL Current vs Supply Voltage
20 250 RF INPUT SIGNAL OFF RF INPUT SIGNAL OFF ENBL = VCC ENBL = VCC 18 T 200 A = 85°C µA) 16 TA = 85°C 150 TA = 25°C TA = 25°C 14 TA = –40°C ENBL CURRENT ( SUPPLY CURRENT (mA) 100 12 TA = –40°C 10 50 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 5537 G02 5537 G03 5537fa 4
ELECTRICAL CHARACTERISTICS VCC = 3V, ENBL = 3V, TA = 25
°
C, unless otherwise specified. (Notes 3, 4) PARAMETER CONDITIONS MIN TYP MAX UNITS Power Supply
Supply Voltage (Note 6) 2.7 5.25 V Supply Current VCC = 3V 10 13.5 15 mA Shutdown Current ENBL = Low 500 µA
Note 1:
Stresses beyond those listed under Absolute Maximum Ratings
Note 6:
The maximum output voltage is limited to approximately VCC – may cause permanent damage to the device. Exposure to any Absolute 0.6V. Either the output slope should be reduced or input power level Maximum Rating condition for extended periods may affect device should be limited in order to avoid saturating the output circuit when VCC < reliability and lifetime. 3V. See discussion in “Dynamic Range” section.
Note 2:
Maximum differential AC input voltage between IN+ and IN– is 4V
Note 7:
Sensitivity is defined as the minimum input power required for the peak. Equivalent to 22dBm with 50Ω input impedance or 16dBm with output voltage to be within 3dB of the ideal log-linear transfer curve. 200Ω input impedance (1:4 transformer used). Sensitivity can be improved by as much as 10dB by using a narrowband
Note 3:
Tests are performed as shown in the configuration of Figure 13. input impedance transformation network. See discussion in “Input
Note 4:
Specifications over the –40°C to 85°C temperature range are Matching” section. assured by design, characterization and correlation with statistical process
Note 8:
The output slope is adjustable using an external pull-down resistor control. (R1). See Applications Information for description of the output circuit.
Note 5:
Operation at lower frequency is possible as described in the “Low Frequency Operation” section in Applications Information.
W U TYPICAL PERFOR A CE CHARACTERISTICS Supply Current vs Supply Voltage ENBL Current vs Supply Voltage
20 250 RF INPUT SIGNAL OFF RF INPUT SIGNAL OFF ENBL = VCC ENBL = VCC 18 T 200 A = 85°C µA) 16 TA = 85°C 150 TA = 25°C TA = 25°C 14 TA = –40°C ENBL CURRENT ( SUPPLY CURRENT (mA) 100 12 TA = –40°C 10 50 2.5 3.0 3.5 4.0 4.5 5.0 5.5 2.5 3.0 3.5 4.0 4.5 5.0 5.5 SUPPLY VOLTAGE (V) SUPPLY VOLTAGE (V) 5537 G02 5537 G03 5537fa 4