LMH6514SQ/NOPB

Instrumentation, Op Amps, Buffer Amps Overview

The LMH6514SQ/NOPB is a single-channel digital controlled variable gain amplifier (VGA) from Texas Instruments, housed in a WQFN-16 package. It operates on a supply voltage ranging from 4 V to 5.25 V with a typical operating current of 124 mA. Key electrical specifications include a bandwidth of 600 MHz, a slew rate of 1.6 kV/us, and a maximum voltage gain of 30.3 dB. The device features an input voltage noise density of 1.8 nV/sqrt Hz, a common-mode rejection ratio of 81 dB, and a power supply rejection ratio of 63 dB. It functions within a temperature range of -40 C to +85 C.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Digitally controlled variable gain architecture for precise signal adjustment
• High-speed performance with 600 MHz bandwidth capability
• Low input voltage noise density for high-fidelity signal processing

Instrumentation, Op Amps, Buffer Amps Applications

• Intermediate frequency amplification in communication systems
• Baseband signal conditioning
• RF front-end modules requiring dynamic gain control

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'SQ' against the manufacturer's official datasheet to confirm the exact temperature grade and packaging variant. Ensure compatibility with the required WQFN-16 footprint during PCB layout. Cross-reference the part number with the latest Texas Instruments documentation to validate RoHS compliance status and any recent design changes or obsolescence notices before finalizing procurement plans.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component when a single-channel VGA with high bandwidth and low noise is required. The digital control interface simplifies gain setting compared to analog methods. Consider the 124 mA operating current for power budget calculations. The WQFN-16 package offers a compact solution for space-constrained designs. Verify that the 4 V to 5.25 V supply range aligns with the system's power rails.

Instrumentation, Op Amps, Buffer Amps Part Context

This device belongs to the LMH6514 series of special purpose amplifiers. It is designed for applications demanding high linearity and wide dynamic range. The NOPB suffix indicates lead-free construction. Related development tools include evaluation boards such as the LMH6514SQEVAL/NOPB for testing and characterization purposes.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Consult the manufacturer's official replacement guide for verified substitutes. No direct public substitute part numbers are confirmed in the available data.