DocumentationDatasheet
Design Note
Reliability Data
Press Release
- Ultrafast 7ns Response Time 15GHz RF Detector with Fast Comparator
- Ultrafast 7ns Response Time 15GHz RF Detector with Fast Comparator Withstands 125°C Operating Environments
Software and Simulation
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Features
- Temperature Compensated Schottky RF Peak Detector
- Wide Input Frequency Range: 600MHz to 15GHz†
- Wide Input Power Range: –24dBm to 16dBm
- 7ns Typical Response Time
- 75MHz Demodulation Bandwidth
- Programmable Gain Settings for Improved Sensitivity
- Adjustable Amplifier Output Offset Voltage
- High Speed Comparator with Latch Enable: 9ns Typical Response Time
- 16-Lead 3mm × 3mm QFN Package
Typical Application
Description
The LTC®5564 is a precision, RF power detector for applications in the 600MHz to 15GHz frequency range. The LTC5564 operates with input power levels from –24dBm to 16dBm.
A temperature compensated Schottky diode peak detector, gain-selectable operational amplifier, and fast comparator are combined in a small 16-lead 3mm × 3mm QFN package.
The RF input signal is peak detected and then sensed by both a comparator and amplifier. The comparator provides a 9ns response time to input levels exceeding VREF along with a latch enable/disable function. The gain selectable operational amplifier provides a 350V/μs slew rate and 75MHz of demodulation bandwidth to the analog output.
VOUTADJ and VREF pins allow for the adjustment of VOUT offset and VCOMP switch point voltages, respectively.
3x3 QFN-16
Package Variations and Pricing
| Part Number | Package | Pins | Temp | Price (1-99) |
Price (1k)* |
|---|---|---|---|---|---|
| LTC5564IUD#PBF | QFN | 16 | I | $4.12 | $2.90 |
| LTC5564IUD#TRPBF | QFN | 16 | I | $2.95 | |
| LTC5564HUD#TRPBF | QFN | 16 | H | $4.99 | $3.49 |
| LTC5564HUD#PBF | QFN | 16 | H | $4.91 | $3.44 |
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 |
|---|---|---|---|
| DC1646A | LTC5564 | Ultrafast 7ns Response Time 15GHz RF Power Detector W/ Comparator Demo Circuit optimized for 5.2GHz to 6.2GHz | $100.00 |