Key facts
- Brand
- Analog Devices
- Model
- AD8307
- Industry
- Industrial
- Documents
- 4
- Languages
- EN
- Last added
- 2012-06-04
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Analog Devices AD8307 Logarithmic Amplifier Datasheet
The AD8307 is a complete 500 MHz monolithic logarithmic amplifier offered in an 8‑lead SO‑8 package. It provides a 92 dB dynamic range from –75 dBm to +17 dBm, operates from a single 2.7 V–5.5 V supply, and features a fully differential input with high impedance.
Key specifications include a 100 ns power‑up time, 400 ns small‑signal response, 500 MHz upper usable frequency, 10 Hz lower usable frequency, and a logarithmic slope of about 25 mV/dB. The device is supplied in industrial temperature grades (‑40 °C to +85 °C) and is suited for applications such as RSSI, antenna power measurement, radar/sonar processing, and spectrum analysis.
Analog Devices AD8307 specifications
| Dynamic Range | 92 dB (‑75 dBm to +17 dBm) |
|---|---|
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current | 8 – 10 mA |
| Power‑Up Time | 100 ns |
| Upper Usable Frequency | 500 MHz |
| Lower Usable Frequency | 10 Hz |
| Logarithmic Slope | ≈25 mV/dB |
| Logarithmic Intercept | 20 pV |
| Input Noise Spectral Density | 1.5 nV/√Hz |
| Output Resistance (Pin 4) | 12.5 kΩ |
| Internal Load Capacitance | 3.5 pF |
| Small‑Signal Response Time (10‑90 %) | 400 ns |
Source: Analog Devices AD8307 Logarithmic Amplifier Datasheet
All Analog Devices AD8307 documents by type
Ratings, dimensions and ordering codes, for selection and design work.
Questions answered in these manuals
What supply voltage range does the AD8307 require?
It operates from a single supply of 2.7 V to 5.5 V.
What is the dynamic range of the AD8307?
The device provides a 92 dB dynamic range from –75 dBm to +17 dBm.
What is the supply voltage range for the AD8307?
The device operates from a single supply of 2.7 V to 5.5 V.
What dynamic range does the AD8307 provide?
It offers a 92 dB dynamic range, from –75 dBm up to +17 dBm.
What is the supply voltage range for the AD8307?
The device operates from 2.7 V to 5.5 V.
What supply voltage range does the AD8307 support?
The AD8307 operates from a single supply of 2.7 V to 5.5 V.