(China (Mainland))
Product Summary
The LT5570IDD is a Mean-Squared Power Detector. The LT5570IDD is a 40MHz to 2.7GHz monolithic Logarithmic Mean-Squared RF power detector. It is capable of RMS measurement of an AC signal with wide dynamic range, from –52dBm to 13dBm depending on frequency. The power of the AC signal in an equivalent decibel-scaled value is precisely converted into DC voltage on a linear scale, independent of the crest factor of the waveforms. The LT5570IDD is suitable for precision RF power measurement and level control for a wide variety of RF standards, including CDMA, W-CDMA, CDMA2000, TD-SCDMA and WiMAX. The DC output is buffered with a low output impedance amplifier capable of driving a high capacitance load. The applications of the LT5570IDD include RMS Power Measurement, RF Power Control, Receive and Transmit Gain Control, W-CDMA, CDMA2000, TD-SCDMA, WiMAX and RF Instrumentation.
Parametrics
LT5570IDD absolute maximum ratings: (1)Supply Voltage: 5.5V; (2)Enable Voltage: –0.3V to VCC + 0.3V; (3)Input Signal Power (Differential): 15dBm; (4)TJMAX: 125℃; (5)Operating Temperature Range: –40℃ to 85℃; (6)Storage Temperature Range: –65℃ to 125℃.
Features
LT5570IDD features: (1)Frequency Range: 40MHz to 2.7GHz; (2)Accurate RMS Power Measurement of High Crest Factor Modulated Waveforms; (3)Linear DC Output vs Input Power in dBm; (4)Linear Dynamic Range: Up to 60dB; (5)Exceptional Accuracy over Temperature: ±0.3dB; (6)Fast Response Time: 0.5μs Rise Time, 8μs Fall Time; (7)Low Supply Current: 26.5mA; (8)Low Impedance Output Buffer Capable of Driving High Capacitance Load; (9)Small 3mm × 3mm 10-Lead DFN Package.
Diagrams
| Image | Part No | Mfg | Description |  |
Pricing (USD) |
Quantity | ||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
 |
 LT5570IDD#PBF |
|
IC POWER DETECTOR MS 10-DFN |
Data Sheet |
|
|
||||||||||
|
LT5570IDD#TRPBF |
|
IC PWR DETECT MS 10-DFN |
Data Sheet |
|
|
||||||||||
