Overview
The AD8313ARM-REEL, produced by Analog Devices Inc., is a complete multistage demodulating logarithmic amplifier. It is designed to accurately convert RF signals at its input to an equivalent decibel-scaled value at its DC output. This component operates over a wide frequency range from 0.1 GHz to 2.5 GHz, making it versatile for various wireless applications. The AD8313 is fabricated on Analog Devices' advanced 25 GHz silicon bipolar IC process and is available in an 8-lead MSOP package.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 0.1 GHz to 2.5 GHz |
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current | 13.7 mA |
| Input Range | -65 dBm to 0 dBm |
| Accuracy | ±1 dB |
| Package | 8-lead MSOP, Tape & Reel |
| Power Consumption | 40 mW at 3 V (normal operation), 60 mW at 3 V (power-down) |
| Output Characteristics | Output can source up to 400 µA, sink up to 10 mA; stable with any capacitive load |
| RoHS Compliance | ROHS3 Compliant |
Key Features
- High accuracy of ±1 dB over the specified frequency range.
- Wide operating frequency range from 0.1 GHz to 2.5 GHz.
- Low power consumption with a typical current of 13.7 mA.
- Compact 8-lead MSOP package.
- Power-down feature with a threshold at VPOS/2, enabling and disabling within 1.8 µs.
- Each of the eight cascaded amplifier stages has a nominal voltage gain of 8 dB and a bandwidth of 3.5 GHz.
- Output stage converts currents to a voltage with a rail-to-rail swing capability.
- Stable operation with large capacitive loads due to HF compensation technique.
Applications
- RADAR systems
- WiFi/WLAN applications
- WiMax systems
- Wireless communication systems
- RF transmitter power amplifier setpoint control and level monitoring
- Logarithmic amplifier for RSSI (Received Signal Strength Indicator) measurement in cellular base stations and radio links
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 supply voltage range for the AD8313?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the typical supply current of the AD8313?
The typical supply current is 13.7 mA.
- What is the input range of the AD8313?
The input range is from -65 dBm to 0 dBm.
- What is the accuracy of the AD8313?
The accuracy is ±1 dB.
- What package options are available for the AD8313?
The AD8313 is available in an 8-lead MSOP package, Tape & Reel.
- Does the AD8313 have a power-down feature?
- What are the key applications of the AD8313?
The AD8313 is used in RADAR systems, WiFi/WLAN applications, WiMax systems, and wireless communication systems.
- How does the AD8313 handle capacitive loads?
The AD8313 is stable with any capacitive load due to its HF compensation technique.
- What is the output characteristics of the AD8313?
The output can source up to 400 µA and sink up to 10 mA, and it is stable with any capacitive load.
