AD8313 is a 0.1 GHz to 2.5 GHz 70 dB logarithmic detector/controller. It features wide bandwidth, high dynamic range, high accuracy, fast response, etc. It is suitable for applications such as RF transmitter power amplifier setpoint control and level monitoring, RSSI measurement, cellular base stations, radio link, radar, etc.
The AD8313 logarithmic detector/controller provides a wide bandwidth from 0.1 GHz to 2.5 GHz, a high dynamic range of up to 70 dB, and a fast 40 ns response. It operates from a single supply of 2.7 V to 5.5 V, consuming only about 40 mW at 3 V, and includes a power‑down mode for ultra‑low standby current.
The device is offered in an 8‑lead MSOP package, supports both log (RSSI) and controller modes, and features a VSET input for set‑point control. Detailed specifications cover frequency range, supply voltage, dynamic range, slope, intercept, temperature range, pin functions, and absolute maximum ratings.
| Frequency Range | 0.1 GHz to 2.5 GHz |
|---|---|
| Supply Voltage Range | 2.7 V to 5.5 V |
| Dynamic Range (3 dB) | 70 dB |
| Typical Power Consumption | 40 mW at 3 V |
| Operating Temperature Range | -40 °C to +85 °C |
The AD8313 operates from a single supply voltage between 2.7 V and 5.5 V.
Typical power consumption is about 40 mW when powered from a 3 V supply.
The device provides a high dynamic range of up to 70 dB.
The AD8313 can operate from –40 °C up to +85 °C.