AD8313
FEATURES
- Wide bandwidth: 0.1 GHz to 2.5 GHz min
- High dynamic range: 70 d B to ±3.0 d B
- High accuracy: ±1.0 d B over 65 d B range (@ 1.9 GHz)
- Fast response: 40 ns full-scale typical
- Controller mode with error output
- Scaling stable over supply and temperature
- Wide supply range: 2.7 V to 5.5 V
- Low power: 40 m W at 3 V
- Power-down feature
: 60 m W at 3 V
- plete and easy to use
APPLICATIONS
- RF transmitter power amplifier setpoint control and level monitoring
- Logarithmic amplifier for RSSI measurement cellular base stations, radio link, radar
GENERAL DESCRIPTION
The AD8313 is a plete multistage demodulating logarithmic amplifier that can accurately convert an RF signal at its input to an equivalent decibel-scaled value at its dc output. The AD8313 maintains a high degree of log conformance for signal frequencies from 0.1 GHz to 2.5 GHz. Application is straightforward, requiring only a single supply of 2.7 V to 5.5 V and the addition of a suitable input and supply...
