DocumentationDatasheet
Application Note
Design Note
Reliability Data
cad_symbol
Features
- Internal Schottky Diode RF Detector with Two Input Power Ranges:
LTC5505-1, –28dBm to 18dBm
LTC5505-2, –32dBm to 12dBm - Wide Input Frequency Range: 300MHz to 3GHz (LTC5505-1); 300MHz to 3.5GHz (LTC5505-2)
- Temperature Compensated
- Buffered Detector Output
- Wide VCC Range of 2.7V to 6V
- Low Operating Current: 0.5mA
- Low Shutdown Current: <2µA
- Low Profile (1mm) ThinSOT Package
Typical Application
Description
The LTC5505-X is an RF power detector for RF applications operating in the 300MHz to 3.5GHz range. A temperature compensated Schottky diode peak detector and buffer amplifier are combined in a small 5-pin ThinSOT 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 LTC5505-1 operates with input power levels from –28dBm to 18dBm. The LTC5505-2 operates with input power levels from –32dBm to 12dBm.
SOT-23
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC5505-1ES5#PBF | SOT | 5 | E | $1.42 | |
| LTC5505-1ES5#TRMPBF | SOT | 5 | E | $1.47 | $1.22 |
| LTC5505-1ES5#TRPBF | SOT | 5 | E | $1.20 | |
| LTC5505-2ES5#PBF | SOT | 5 | E | $1.42 | |
| LTC5505-2ES5#TRMPBF | SOT | 5 | E | $1.47 | $1.21 |
| LTC5505-2ES5#TRPBF | SOT | 5 | E | $1.19 | |
| LTC5505-1ES5 | SOT | 5 | E | $2.84 | |
| LTC5505-1ES5#TR | SOT | 5 | E | $2.40 | |
| LTC5505-2ES5 | SOT | 5 | E | $2.84 | |
| LTC5505-2ES5#TR | SOT | 5 | E | $2.38 | |
| LTC5505-1ES5#TRM | SOT | 5 | E | $2.94 | $2.44 |
| LTC5505-2ES5#TRM | SOT | 5 | E | $2.94 | $2.42 |
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 |
|---|---|---|---|
| DC391A-A | LTC5505-1ES5 | -28dBm to 18dBm RF Power Detector (postage stamp) | $100.00 | |
| DC391A-B | LTC5505-2ES5 | -32dBm to 12dBm RF Power Detector (postage stamp) | $100.00 |