Key facts
- Brand
- Analog Devices
- Model
- AD8318
- Industry
- Industrial
- Documents
- 2
- Languages
- EN
- Last added
- 2012-05-03
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Analog Devices AD8318 Product Handbook Rev B
The AD8318 is a demodulating logarithmic amplifier covering 1 MHz to 8 GHz with a 70 dB dynamic range and low‑noise output. It offers single‑supply operation at 5 V, a power‑down mode under 1.5 mW, and an integrated temperature sensor for system monitoring.
The handbook includes functional block diagrams, pin configuration, absolute maximum ratings, typical performance curves, and an ordering guide for the 16‑lead LFCSP package. It also details controller mode operation, measurement mode settings, and temperature compensation features.
Analog Devices AD8318 specifications
| Frequency Range | 0.001 – 8 GHz |
|---|---|
| +3 dB Dynamic Range (typ) | 70 dB |
| Logarithmic Slope | ≈ –24 mV/dB |
| Quiescent Current (ENBL=5 V) | 68 mA typical |
| Input Impedance (typ) | 957 Ω || 0.71 pF |
| Temperature Sensor Slope | 2 mV/°C |
All Analog Devices AD8318 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What is the logarithmic slope of the AD8318 output?
The slope is approximately –24 mV per dB.
How does the temperature sensor output change with temperature?
It provides a 2 mV per °C slope.
How much power does the AD8318 use in power‑down mode?
In power‑down the AD8318 consumes less than 1.5 mW at a 5 V supply.
What is the typical response time of the AD8318?
The detector has a pulse response time of 10 ns fall and 12 ns rise.