LMH6517SQE/NOPB

Overview

The LMH6517SQE/NOPB is a low power, low noise dual variable gain amplifier (VGA) designed for intermediate frequency and baseband applications. It features digitally controlled gain with a maximum voltage gain of 22 dB. The device operates on a single supply voltage ranging from 4.5 V to 5.25 V, drawing a typical operating current of 182 mA. Key electrical specifications include a slew rate of 5 kV/us, an input voltage noise density of 1.1 nV/sqrt Hz, and a common-mode rejection ratio of 60 dB. It is housed in a 32-WQFN package.

Feature Summary

• Dual channel architecture providing integrated signal processing capabilities within a compact footprint.
• Digitally controlled gain mechanism allowing precise adjustment for varying signal levels.
• Low noise performance optimized for sensitive intermediate frequency and baseband signal paths.

Applications

• Intermediate frequency amplification in communication systems
• Baseband signal conditioning for data acquisition
• Driver circuits for analog-to-digital converters

Procurement Notes

Verify the specific suffix 'SQE' against the manufacturer's official datasheet to confirm pinout compatibility and functional specifications. Ensure the component meets RoHS requirements as indicated in the product documentation. Cross-reference the part number with authorized distributors to validate authenticity and traceability before procurement.

Selection Notes

Select this component when dual-channel VGA functionality is required alongside low noise characteristics. Consider the 32-WQFN package constraints for thermal management and PCB layout. Evaluate the 182 mA current consumption against system power budgets. Verify that the 4.5 V to 5.25 V supply range aligns with the available power rails in the target design.

Part Context

This device belongs to the LMH6517 series of special purpose amplifiers manufactured by Texas Instruments. It is part of a family of low power, high-speed analog components designed for demanding RF and IF applications. The NOPB suffix indicates lead-free construction compliant with environmental standards.

Replacement Considerations

Consult the official datasheet for direct pin-to-pin replacements or functional equivalents within the same product family. Verify that any substitute maintains the same digital control interface and gain range specifications.