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Special Purpose Amplifiers
LLP6Manufacturer:
Mfr.Part #:
LMV221SDX
Datasheet:
Minimum Operating Temperature:
- 40 C
Maximum Operating Temperature:
+ 85 C
EDA/CAD Models:
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The LMV221 is a 40-dB RF power detector intended for use in CDMA and WCDMA applications. The device has an RF frequency range from 50 MHz to 3.5 GHz. It provides an accurate temperature and supply-compensated output voltage that relates linearly to the RF input power in dBm. The circuit operates with a single supply from 2.7 V to 3.3 V.
The LMV221 has an RF power detection range from 45 dBm to 5 dBm and is ideally suited for direct use in combination with a 30-dB directional coupler. Additional low-pass filtering of the output signal can be achieved by means of an external resistor and capacitor. shows a detector with an additional output low pass filter. The filter frequency is set with RS and CS.
shows a detector with an additional feedback low pass filter. Resistor RP is optional and lowers the trans-impedance gain (RTRANS). The filter frequency is set with CP//CTRANS and RP//RTRANS.
The device is active for Enable = High, otherwise it is in a low power consumption shutdown mode. To save power and prevent discharge of an external filter capacitance, the output (OUT) is high-impedance during shutdown.
For all available packages, see the orderable addendum at the end of the data sheet.Product Category: | Special Purpose Amplifiers | Minimum Operating Temperature: | - 40 C |
Maximum Operating Temperature: | + 85 C | Product Type: | Special Purpose Amplifiers |
Subcategory: | Amplifier ICs |
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