DocumentationDatasheet
Design Note
Reliability Data
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Features
- Temperature Compensated Internal Schottky Diode RF Detector
- Wide Input Frequency Range: 300MHz to 3GHz
- Wide Input Power Range: �30dBm to 6dBm
- Buffered Detector Output
- Wide VCC Range of 2.7V to 6V
- Low Operating Current: 600µA
- Low Shutdown Current: <2µA
- SC70 Package
Typical Application
Description
The LTC™5509 is an RF power detector for RF applications operating in the 300MHz to 3GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small SC70 package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3xNiMH.
The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the VOUT pin without gain compression. Consequently, the output voltage is linearly proportional to the RF input voltage. A power saving shutdown mode reduces supply current to less than 2µA.
The LTC5509 operates with input power levels from �30dBm to 6dBm.
SC-70
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC5509ESC6#PBF | SC70 | 6 | E | $2.00 | |
| LTC5509ESC6#TRMPBF | SC70 | 6 | E | $2.00 | $1.43 |
| LTC5509ESC6#TRPBF | SC70 | 6 | E | $2.00 | $1.41 |
| LTC5509ESC6 | SC70 | 6 | E | $4.00 | |
| LTC5509ESC6#TR | SC70 | 6 | E | $4.00 | $2.82 |
| LTC5509ESC6#TRM | SC70 | 6 | E | $4.00 | $2.86 |
Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.
| Part Number | Description | Price | Documentation |
|---|---|---|---|
| DC539B | LTC5509ESC6 | 3 GHz RF Power Detector (No Gain Compression) | $100.00 |