AD8310 PDF Datasheet


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Description

This is 95 dB Logarithmic Amplifier. 01084-001 Fast, Voltage-Out, DC to 440 MHz, 95 dB Logarithmic Amplifier AD8310 FEATURES Multistage demodulating logarithmic amplifier Voltage output, rise time <15 ns High current capacity: 25 mA into grounded RL 95 dB dynamic range: 91 dBV to +4 dBV Single supply of 2.7 V min at 8 mA typ DC to 440 MH- operation, ±0.4 dB linearity Slope of +24 mV, dB, intercept of 108 dBV Highly stable scaling over temperature Fully differential dc-coupled signal path 100 ns power-up time, 1 mA sleep current APPLICATIONS Conversion of signal level to decibel form Transmitter antenna power measurement Receiver signal strength indication (RSSI) Low cost radar and sonar signal processing Network and spectrum analyzers Signal-level determination down to 20 H- True-decibel ac mode for multimeters FUNCTIONAL BLOCK DIAGRAM SUPPLY +INPUT INPUT COMMON VPOS 5 8mA BAND GAP REFERENCE AND BIASING AD8310 ENBL 7 ENABLE INHI 8 1.0kΩ 1 INLO 3 SIX 14.3dB 900MH- AMPLIFIER STAGES MIRROR 2μA , dB NINE D.