AD8310
AD8310 is 95 dB Logarithmic Amplifier manufactured by Analog Devices.
01084-001
Fast, Voltage-Out, DC to 440 MHz, 95 d B Logarithmic Amplifier
Features
Multistage demodulating logarithmic amplifier Voltage output, rise time <15 ns High current capacity: 25 m A into grounded RL 95 d B dynamic range:
- 91 d BV to +4 d BV Single supply of 2.7 V min at 8 m A typ DC to 440 MHz operation, ±0.4 d B linearity Slope of +24 m V/d B, intercept of
- 108 d BV Highly stable scaling over temperature Fully differential dc-coupled signal path 100 ns power-up time, 1 m A 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 Hz True-decibel ac mode for multimeters
FUNCTIONAL BLOCK DIAGRAM
SUPPLY +INPUT
- INPUT
VPOS 5 8m A
BAND GAP REFERENCE AND BIASING
ENBL 7 ENABLE
INHI 8
1.0kΩ 1 INLO
SIX 14.3d B 900MHz AMPLIFIER STAGES
MIRROR 2μA /d B
NINE...
