特点
Temperature Compensated Internal Schottky Diode RF Detector
Wide Input Frequency Range: 300MHz to 7GHz*
Wide Input Power Range: –32dBm to 10dBm
Buffered Detector Output with External Gain Control
Precision V
OUT
Offset Control
Low Starting Voltage: 120mV ±35mV for Gain = 2x
Wide V
CC
Range of 2.7V to 6V
Low Operating Current: 500μA
Available in a Low Profile (1mm) SOT-23 Package and Tiny 6-Lead (2mm x 2mm) DFN Package
典型应用
典型应用
描述
The LTC?5532 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 ThinSOT? or (2mm x 2mm) DFN package. The supply voltage range is optimized for operation from a single lithium-ion cell or 3x NiMH.
The RF input voltage is peak detected using an on-chip Schottky diode. The detected voltage is buffered and supplied to the V OUT pin.
The LTC5532 output buffer gain is set via external resistors. The initial starting voltage of 120mV ±35mV can be precisely adjusted using the V OS pin.
The LTC5532 operates with RF input power levels from –32dBm to 10dBm.
*Higher frequency operation is achievable with reduced performance. Consult factory for more information.
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