Overview
The AD8313ARMZ-REEL, produced by Analog Devices Inc., is a complete multistage demodulating logarithmic amplifier. This component is designed to accurately convert an RF signal at its input to an equivalent decibel-scaled value at its DC output. It operates over a wide frequency range from 0.1 GHz to 2.5 GHz, making it suitable for various RF measurement and power amplifier control applications.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 0.1 GHz to 2.5 GHz |
| Dynamic Range | 70 dB to ±3.0 dB |
| Accuracy | ±1.0 dB over 65 dB range (@ 1.9 GHz) |
| Response Time | 40 ns full-scale typical |
| Supply Voltage | 2.7 V to 5.5 V |
| Power Consumption | 40 mW at 3 V |
| Power-Down Current | 20 µA |
| Operating Temperature | −40°C to +85°C |
| Package Type | 8-lead MSOP |
Key Features
- Wide bandwidth: 0.1 GHz to 2.5 GHz
- High dynamic range: 70 dB to ±3.0 dB
- High accuracy: ±1.0 dB over 65 dB range (@ 1.9 GHz)
- Fast response: 40 ns full-scale typical
- Controller mode with error output
- Scaling stable over supply and temperature
- Low power: 40 mW at 3 V
- Power-down feature: 60 mW at 3 V
- Complete and easy to use
Applications
- RF transmitter power amplifier setpoint control and level monitoring
- Logarithmic amplifier for RSSI measurement in cellular base stations, radio links, and radar systems
Q & A
- What is the frequency range of the AD8313?
The AD8313 operates over a frequency range from 0.1 GHz to 2.5 GHz. - What is the dynamic range of the AD8313?
The dynamic range is 70 dB to ±3.0 dB. - How accurate is the AD8313?
The AD8313 has an accuracy of ±1.0 dB over a 65 dB range at 1.9 GHz. - What is the response time of the AD8313?
The response time is 40 ns full-scale typical. - What is the supply voltage range for the AD8313?
The supply voltage range is from 2.7 V to 5.5 V. - How much power does the AD8313 consume?
The power consumption is 40 mW at 3 V. - Does the AD8313 have a power-down feature?
Yes, the AD8313 has a power-down feature with a current of 20 µA. - What is the operating temperature range of the AD8313?
The operating temperature range is −40°C to +85°C. - In what package type is the AD8313 available?
The AD8313 is available in an 8-lead MSOP package. - What are some common applications of the AD8313?
Common applications include RF transmitter power amplifier setpoint control, level monitoring, and logarithmic amplifier for RSSI measurement in cellular base stations, radio links, and radar systems.
