LTC5507| Datasheet

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LTC5507 100kHz to 1GHz RF Power Detector

FEATURES
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DESCRIPTIO

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Temperature Compensated Internal Schottky Diode RF Detector Wide Input Power Range: 34dBm to 14dBm Ultra Wide Input Frequency Range: 100kHz to 1000MHz Buffered Output Wide VCC Range of 2.7V to 6V Low Operating Current: 550uA Low Shutdown Current: <2uA Low Profile (1mm) ThinSOTTM Package

The LTC 5507 is an RF power detector for applications operating from 100kHz to 1000MHz. The input frequency range is determined by an external capacitor. A temperature-compensated Schottky diode peak detector and buffer amplifier are combined in a small 6-pin ThinSOT package. The RF input voltage is peak detected using an on-chip Schottky diode and external capacitor. The detected voltage is buffered and supplied to the VOUT pin. A power saving shutdown mode reduces supply current to less than 2uA.
, LTC and LT are registered trademarks of Linear Technology Corporation. ThinSOT is a trademark of Linear Technology Corporation

APPLICATIO S
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Wireless Transceivers Wireless and Cable Infrastructure RF Power Alarm Envelope Detector

TYPICAL APPLICATIO

Typical Detector Characteristics at 100kHz, 100MHz and 1000MHz
10000 TA = 25 C VCC = 2.7V TO 6V

4 VBAT 2.7V TO 6V C2 C1 RF INPUT 6 5

VCC PCAP RFIN

VOUT GND SHDN
5507 TA01

3 2 1

VOUT DETECTED VOLTAGE

VOUT OUTPUT VOLTAGE (mV)

LTC5507

1000

DISABLE ENABLE

Figure 1. 100kHz to 1000MHz RF Power Detector

100 34

26

U
100kHz, 100MHz 1000MHz 18 10 2 6 RF INPUT POWER (dBm) 14
5507 TA01b

U

U

5507f

1

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LTC5507 DATASHEET