DocumentationDatasheet
Design Note
Reliability Data
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Features
- Temperature Compensated Internal Schottky Diode RF Detector
- Wide Input Frequency Range: 300MHz to 7GHz
- Wide Input Power Range: –32dBm to 12dBm
- Buffered Detector Output
- Wide VCC Range of 2.7V to 6V
- Low Operating Current: 550µA
- Low Shutdown Current: <2µA
- SC70Package
Typical Application
Description
The LTC5508 is an RF power detector for RF applications operating in the 300MHz to 7GHz 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. A power saving shutdown mode reduces supply current to less than 2µA.
The LTC5508 operates with input power levels from –32dBm to 12dBm.
SC-70,SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC5508ESC6#PBF | SC70 | 6 | E | $2.12 | |
| LTC5508ESC6#TRMPBF | SC70 | 6 | E | $2.12 | $1.53 |
| LTC5508ESC6#TRPBF | SC70 | 6 | E | $2.12 | $1.51 |
| LTC5508ESC6-DUP | SOT | 6 | E | $4.24 | |
| LTC5508ESC6#TR | SC70 | 6 | E | $4.24 | $3.02 |
| LTC5508ESC6 | SC70 | 6 | E | $4.24 | |
| LTC5508ESC6#TRM | SC70 | 6 | E | $4.24 | $3.06 |
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 |
|---|---|---|---|
| DC539A | LTC5508ESC6 | 7GHz RF Power Detector | $100.00 |