Overview
The AD8314ARM-REEL, produced by Analog Devices Inc., is a logarithmic amplifier (log amp) designed for the measurement and control of RF signals. This device operates within a frequency range of 100 MHz to 2.7 GHz, making it suitable for a wide variety of cellular handsets and other wireless devices. It provides a complete low-cost subsystem with a typical dynamic range of 45 dB, offering better accuracy and a wider dynamic range compared to discrete diode detectors. The AD8314 is known for its excellent temperature stability over the full operating range of -40°C to +85°C and its high sensitivity, allowing control at low power levels.
Key Specifications
| Parameter | Value |
|---|---|
| Frequency Range | 100 MHz to 2.7 GHz |
| Supply Voltage | 2.7 V to 5.5 V |
| Supply Current | 5.7 mA (typical at 2.7 V) |
| Package | 8-MSOP, 8-TSSOP (0.118", 3.00mm Width) |
| Input Power Range | -45 dBm to 0 dBm (re 50 Ω) |
| Temperature Range | -40°C to +85°C |
| Compliance | RoHS3 compliant |
Key Features
- Wide frequency range of 100 MHz to 2.7 GHz
- Wide input power range of -45 dBm to 0 dBm
- Low power consumption, typically 12 mW at 2.7 V
- Excellent temperature stability over the full operating range
- High sensitivity, allowing control at low power levels
- Two voltage outputs: V_UP for measurement and V_DN for analog control
- Internal ac-coupling with a high-pass corner at approximately 16 MHz
- Rapid response time of 70 ns to a 10 dB step
Applications
- Cellular handsets (TDMA, CDMA, GSM)
- RSSI (Received Signal Strength Indicator) and TSSI (Transmitted Signal Strength Indicator) for wireless terminal devices
- Transmitter power measurement and control
- RF/IF and RFID detection
Q & A
- What is the frequency range of the AD8314ARM-REEL?
The AD8314ARM-REEL operates within a frequency range of 100 MHz to 2.7 GHz.
- What is the supply voltage range for the AD8314ARM-REEL?
The supply voltage range is from 2.7 V to 5.5 V.
- What is the typical supply current of the AD8314ARM-REEL?
The typical supply current is 5.7 mA at 2.7 V.
- What package types are available for the AD8314ARM-REEL?
The device is available in 8-MSOP and 8-TSSOP packages.
- What is the input power range of the AD8314ARM-REEL?
The input power range is from -45 dBm to 0 dBm (re 50 Ω)).
- Is the AD8314ARM-REEL RoHS compliant?
- What are the primary applications of the AD8314ARM-REEL?
The primary applications include cellular handsets (TDMA, CDMA, GSM), RSSI and TSSI for wireless terminal devices, and transmitter power measurement and control).
- How does the AD8314ARM-REEL handle temperature variations?
The device exhibits excellent temperature stability over the full operating range of -40°C to +85°C).
- What is the response time of the AD8314ARM-REEL to a 10 dB step?
The response time is approximately 70 ns to a 10 dB step).
- Does the AD8314ARM-REEL have internal ac-coupling?
- How many voltage outputs does the AD8314ARM-REEL provide?
The device provides two voltage outputs: V_UP for measurement and V_DN for analog control).
