LTC5507

1

5507f

APPLICATIO S

DESCRIPTIO

FEATURES

TYPICAL APPLICATIO

s

Wireless Transceivers

s

Wireless and Cable Infrastructure

s

RF Power Alarm

s

Envelope Detector

s

Temperature Compensated Internal Schottky

Diode RF Detector

s

Wide Input Power Range: –34dBm to 14dBm

s

Ultra Wide Input Frequency Range: 100kHz to

1000MHz

s

Buffered Output

s

s

Low Operating Current: 550

µA

s

Low Shutdown Current: <2

µA

s

Low Profile (1mm) ThinSOT

100kHz to 1GHz

RF Power Detector

The LTC

operating from 100kHz to 1000MHz. The input frequency

range is determined by an external capacitor. A tempera-

ture-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 volt-

saving shutdown mode reduces supply current to less

than 2

µA.

, LTC and LT are registered trademarks of Linear Technology Corporation.

ThinSOT is a trademark of Linear Technology Corporation

5507 TA01

GND

SHDN

PCAP

LTC5507

4

5

6

3

2

1

DETECTED

VOLTAGE

2.7V TO 6V

C2

C1

RF

INPUT

DISABLE ENABLE

Figure 1. 100kHz to 1000MHz RF Power Detector

Typical Detector Characteristics

at 100kHz, 100MHz and 1000MHz

RF INPUT POWER (dBm)

10000

5507 TA01b

100

1000

–26

6

14

–2

–10

–18

–34

100kHz, 100MHz

1000MHz