Datasheet LTC5509 (Analog Devices)
| Manufacturer | Analog Devices |
| Description | 300MHz to 3GHz RF Power Detector in SC70 Package |
| Pages / Page | 8 / 1 — FEATURES. DESCRIPTIO. Temperature Compensated Internal Schottky Diode. RF … |
| File Format / Size | PDF / 188 Kb |
| Document Language | English |
FEATURES. DESCRIPTIO. Temperature Compensated Internal Schottky Diode. RF Detector. Wide Input Frequency Range: 300MHz to 3GHz
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LTC5509 300MHz to 3GHz RF Power Detector in SC70 Package
U FEATURES DESCRIPTIO
■
Temperature Compensated Internal Schottky Diode
The LTC®5509 is an RF power detector for RF applications
RF Detector
operating in the 300MHz to 3GHz range. A temperature ■
Wide Input Frequency Range: 300MHz to 3GHz
compensated Schottky diode peak detector and buffer ■
Wide Input Power Range: –30dBm to 6dBm
amplifier are combined in a small SC70 package. The ■
Buffered Detector Output
supply voltage range is optimized for operation from a ■
Wide VCC Range of 2.7V to 6V
single lithium-ion cell or 3xNiMH. ■ Low Operating Current: 600µA The RF input voltage is peak detected using an on-chip ■ Low Shutdown Current: <2µA Schottky diode. The detected voltage is buffered and ■ SC70 Package supplied to the VOUT pin without gain compression. Con- sequently, the output voltage is linearly proportional to the
U APPLICATIO S
RF input voltage. A power saving shutdown mode reduces supply current to less than 2µA. ■ Multimode Mobile Phone Products ■ Optical Data Links The LTC5509 operates with input power levels from ■ Wireless Data Modems –30dBm to 6dBm. ■ Wireless and Cable Infrastructure , LTC and LT are registered trademarks of Linear Technology Corporation. ■ RF Power Alarm ■ Envelope Detector
U TYPICAL APPLICATIO Output Voltage vs RF Input Power
3000 VCC = 3.6V TA = 25°C
300MHz to 3GHz RF Power Detector
2500 850MHz 1.85GHz 33pF 2000 LTC5509 6 RF 4 V 3GHz RF CC V IN CC INPUT 1500 2 5 100pF 0.1µF GND GND 1000 1 3 OUTPUT VOLTAGE (mV) V DISABLE ENABLE SHDN OUT VOUT OUT 5509 TA01 V 500 0 –30 –25 –20 –15 –10 –5 0 5 10 RF INPUT POWER (dBm) 5509 TA02 5509f 1
U FEATURES DESCRIPTIO
■
Temperature Compensated Internal Schottky Diode
The LTC®5509 is an RF power detector for RF applications
RF Detector
operating in the 300MHz to 3GHz range. A temperature ■
Wide Input Frequency Range: 300MHz to 3GHz
compensated Schottky diode peak detector and buffer ■
Wide Input Power Range: –30dBm to 6dBm
amplifier are combined in a small SC70 package. The ■
Buffered Detector Output
supply voltage range is optimized for operation from a ■
Wide VCC Range of 2.7V to 6V
single lithium-ion cell or 3xNiMH. ■ Low Operating Current: 600µA The RF input voltage is peak detected using an on-chip ■ Low Shutdown Current: <2µA Schottky diode. The detected voltage is buffered and ■ SC70 Package supplied to the VOUT pin without gain compression. Con- sequently, the output voltage is linearly proportional to the
U APPLICATIO S
RF input voltage. A power saving shutdown mode reduces supply current to less than 2µA. ■ Multimode Mobile Phone Products ■ Optical Data Links The LTC5509 operates with input power levels from ■ Wireless Data Modems –30dBm to 6dBm. ■ Wireless and Cable Infrastructure , LTC and LT are registered trademarks of Linear Technology Corporation. ■ RF Power Alarm ■ Envelope Detector
U TYPICAL APPLICATIO Output Voltage vs RF Input Power
3000 VCC = 3.6V TA = 25°C
300MHz to 3GHz RF Power Detector
2500 850MHz 1.85GHz 33pF 2000 LTC5509 6 RF 4 V 3GHz RF CC V IN CC INPUT 1500 2 5 100pF 0.1µF GND GND 1000 1 3 OUTPUT VOLTAGE (mV) V DISABLE ENABLE SHDN OUT VOUT OUT 5509 TA01 V 500 0 –30 –25 –20 –15 –10 –5 0 5 10 RF INPUT POWER (dBm) 5509 TA02 5509f 1
