Overview
The AD8314ACPZ-REEL, manufactured by Analog Devices Inc., is a complete low-cost subsystem designed for the measurement and control of RF signals. It operates within the frequency range of 100 MHz to 2.7 GHz, making it suitable for a wide variety of wireless devices, including cellular handsets. This component provides a temperature-stable linear-in-dB response and is known for its high sensitivity and rapid response time, making it an ideal choice for applications requiring accurate RF signal measurement and control.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 100 MHz to 2.7 GHz |
| Dynamic Range | −58 dBV to −13 dBV (−45 dBm to 0 dBm, re 50 Ω) |
| Supply Voltage (VPOS) | 2.7 V to 5.5 V |
| Quiescent Current | 3.0 mA to 5.7 mA |
| Response Time | 70 ns to a 10 dB step |
| Operating Temperature | −40°C to +85°C |
| Power Consumption | 12 mW at 2.7 V |
| Total Supply Current when Disabled | 20 µA to 95 µA |
Key Features
- Complete RF detector/controller function with a wide dynamic range of 45 dB.
- Temperature-stable linear-in-dB response over the full operating temperature range.
- Rapid response time of 70 ns to a 10 dB step.
- Low power consumption of 12 mW at 2.7 V.
- High sensitivity, allowing control at low power levels.
- Logic level to disable power for low standby current.
Applications
- Cellular handsets (TDMA, CDMA, GSM).
- Received Signal Strength Indicator (RSSI) and Transmitted Signal Strength Indicator (TSSI) for wireless terminal devices.
- Transmitter power measurement and control.
Q & A
- What is the frequency range of the AD8314?
The AD8314 operates within the frequency range of 100 MHz to 2.7 GHz. - What is the dynamic range of the AD8314?
The dynamic range is −58 dBV to −13 dBV, which is equivalent to −45 dBm to 0 dBm, re 50 Ω. - What is the supply voltage range for the AD8314?
The supply voltage range is 2.7 V to 5.5 V. - How much power does the AD8314 consume at 2.7 V?
The AD8314 consumes 12 mW at 2.7 V. - What is the response time of the AD8314 to a 10 dB step?
The response time is 70 ns to a 10 dB step. - What are the typical applications of the AD8314?
The AD8314 is typically used in cellular handsets, RSSI and TSSI for wireless terminal devices, and transmitter power measurement and control. - What is the operating temperature range of the AD8314?
The operating temperature range is −40°C to +85°C. - How does the AD8314 handle power disable?
The AD8314 has a logic level to disable power, reducing the total supply current to 20 µA to 95 µA when disabled. - What makes the AD8314 superior to discrete diode detectors?
The AD8314 provides a wider dynamic range and better accuracy than discrete diode detectors, along with excellent temperature stability. - Is the AD8314 suitable for high-frequency applications?
Yes, the AD8314 is suitable for high-frequency applications, but for detailed operation at higher frequencies, refer to the Applications section of the datasheet.
