AD8318 Analog Devices Integrated Circuit (Quad Flat No-Lead) In Stock
Analog Devices AD8318 is a 1 MHz to 6 GHz logarithmic amplifier and RF power detector in a compact QFN package, offering 60 dB dynamic range and a temperature-compensated DC output proportional to input power. Available from stock worldwide with fast shipping.
- Manufacturer
- Analog Devices
- Package
- Quad Flat No-Lead
- Pin Count
- 17
- Lifecycle
- ACTIVE
- Datasheet
- AD8318 Datasheet PDF
- Category
- Integrated Circuit
- RoHS
- Compliant
- Lead Time
- 3–7 business days
- Shipping
- DHL Express · Worldwide
What are the key features of AD8318?
- 1 MHz to 6 GHz frequency range with 60 dB dynamic range for wideband RF power measurement from transmitters to receivers
- Temperature-compensated logarithmic output voltage proportional to RF input power, reducing calibration overhead in wireless systems
- Fast 10 ns rise time enables accurate power detection in TDMA burst and pulsed RF envelope measurement applications
- Compact QFN package with 5V single-supply operation simplifying integration into RF front-end modules and test equipment
What is AD8318 used for?
The AD8318 is used as an RF power detector and automatic gain control element in cellular base stations, wireless LAN transceivers, and radar systems operating from 1 MHz to 6 GHz. Its 60 dB dynamic range and temperature-compensated output make it suitable for transmit power monitoring, receive signal strength indication (RSSI), and antenna VSWR detection in 4G/5G and Wi-Fi equipment. Test and measurement instruments such as spectrum analyzers and signal generators also use the AD8318 for calibrated power measurement across microwave frequencies.
Compliance & Regulatory
| RoHS Status | Compliant |
| Lead-Free | Yes (Pb-Free) |
Where can I find the AD8318 datasheet?
AD8318 Datasheet DownloadOfficial datasheet from Analog Devices
What are equivalent replacements for AD8318?
Compatible alternatives and drop-in replacements for AD8318:
Frequently Asked Questions
What frequency range and dynamic range does the AD8318 cover for RF power detection?
The AD8318 operates from 1 MHz to 6 GHz and provides a 60 dB dynamic range, enabling accurate power measurement from -60 dBm to 0 dBm across cellular, Wi-Fi, and microwave bands with a single temperature-compensated device.
How quickly can the AD8318 respond to pulsed RF signals in TDMA or radar applications?
The AD8318 achieves a 10 ns rise time on its output, allowing it to track fast-changing RF envelope power in TDMA burst transmitters, pulsed radar waveforms, and time-domain power profiling where sub-microsecond power transitions must be resolved accurately.
What supply voltage does the AD8318 require, and does it operate from a standard 5V rail?
The AD8318 operates from a single 5V supply rail, making it directly compatible with standard analog power domains in RF module designs; no negative supply or dual-rail circuit is needed, which simplifies PCB power distribution in base-station radio cards and test instruments.
How does the temperature compensation of the AD8318 benefit deployed wireless infrastructure equipment?
The on-chip temperature compensation maintains a stable logarithmic transfer function across the operating temperature range, reducing the need for external calibration look-up tables and correction firmware, which lowers system software complexity in cellular base-station and RFFE modules exposed to -40°C to 85°C environments.
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Why Buy from FindMyChip
About Analog Devices
Analog Devices (ADI) is a global leader in high-performance analog, mixed-signal, and digital signal processing integrated circuits used in virtually all types of electronic equipment.
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