AD8307ARZ-RL7

Overview

The AD8307ARZ-RL7 is a low-cost, DC to 500 MHz logarithmic amplifier manufactured by Analog Devices Inc. It provides a dynamic range of 92 dB with a typical slope of 25 mV/dB and an intercept of -84 dBm. The device operates on a single supply voltage ranging from 2.7 V to 5.5 V, drawing a typical current of 7.5 mA. It features a fully differential dc-coupled signal path and is housed in an 8-lead SOIC package.

Feature Summary

• Features a complete multistage logarithmic amplifier architecture based on the progressive compression technique for high gain bandwidth product.
• Includes a fast-acting CMOS-compatible enable pin that allows the device to be disabled to a standby current of 150 μA.
• Provides a highly stable scaling over temperature with a fully differential dc-coupled signal path.

Applications

• Receiver signal strength indication (RSSI)
• Transmitter antenna power measurement
• Low cost radar and sonar signal processing

Procurement Notes

Verify the specific ordering suffix RL7 corresponds to the reel packaging configuration required for your assembly line. Confirm the component meets RoHS compliance standards as specified in the manufacturer's documentation before finalizing procurement orders.

Selection Notes

Select this component when a wide dynamic range up to 92 dB is required for RF signal detection. Ensure the application frequency does not exceed the 500 MHz upper usable limit. Verify that the system can accommodate the single-supply voltage requirements between 2.7 V and 5.5 V.

Part Context

This part belongs to the AD8307 series of logarithmic amplifiers. It is designed as a monolithic demodulating log amp suitable for applications requiring precise signal level conversion to decibel form across a broad frequency spectrum.

Replacement Considerations

The AD8310 offers a buffered output and faster response time. The ADL5513 supports operation up to 4 GHz but consumes more power. The AD8309 provides a higher input range of 100 dB with a limiter output.