AD8317ACPZ-R7

Overview

The AD8317ACPZ-R7 is a demodulating logarithmic amplifier fabricated using high-speed SiGe bipolar IC process technology. It converts RF input signals into decibel-scaled outputs with a wide bandwidth spanning 1 MHz to 10 GHz. The device provides a typical dynamic range of 55 dB up to 8 GHz, maintaining an accuracy of ±1.0 dB over the operating temperature range of −40°C to +85°C. It operates on a supply voltage between 3.0 V and 5.5 V, consuming typically 22 mA. The component features a small 2 mm × 3 mm LFCSP-8 package.

Feature Summary

• Employs progressive compression technique across cascaded amplifier stages for accurate log conformance
• Configurable as measurement or controller mode via VSET interface
• Provides low noise output suitable for precise power monitoring applications
• Features fast pulse response time enabling detection of high-frequency RF bursts

Applications

• RF transmitter PA setpoint control and level monitoring
• Power monitoring in radio link transmitters
• RSSI measurement in base stations, WLANs, WiMAX, and radars

Procurement Notes

Verify the specific ordering suffix matches the required reel quantity and tape specifications. Confirm that the LFCSP package dimensions align with the target PCB footprint. Ensure the operating temperature range meets the environmental requirements of the final assembly. Cross-reference the manufacturer part number against official Analog Devices documentation to validate authenticity.

Selection Notes

Select this component when a wide frequency range extending to 10 GHz is required alongside high dynamic range. Consider its dual capability for both measurement and closed-loop control applications. Evaluate the need for fast pulse response times in burst signal environments. Verify compatibility with standard single-ended RF input coupling methods.

Part Context

This device belongs to the AD8317 family of demodulating logarithmic amplifiers designed by Analog Devices. It utilizes proprietary SiGe technology to achieve high performance in a compact form factor. The series is engineered for demanding RF applications requiring precise amplitude detection and control functions across broad bandwidths.

Replacement Considerations

Consult official Analog Devices documentation for verified substitute part numbers within the same product family or equivalent functional alternatives.