LMH6629SD/NOPB

Instrumentation, Op Amps, Buffer Amps Overview

The LMH6629SD/NOPB is a single-channel, ultra-low noise, high-speed voltage feedback operational amplifier manufactured by Texas Instruments. It features a gain-bandwidth product of 1 GHz and a slew rate of 1600 V/µs. The device operates on a supply voltage range of 2.7 V to 5.5 V with a typical quiescent current of 15.5 mA per channel. Key electrical parameters include an input offset voltage of 800 µV maximum, an input bias current of 3 µA, and an output current capability of 250 mA. It is housed in an 8-pin WSON surface-mount package.

Instrumentation, Op Amps, Buffer Amps Feature Summary

• Ultra-low noise performance with a voltage noise density of 0.69 nV/√Hz at 1 kHz
• Integrated shutdown control for power management
• High output drive capability supporting up to 250 mA load current
• Decompensated architecture optimized for stable operation at gains of 4 V/V or higher

Instrumentation, Op Amps, Buffer Amps Applications

• Wireless communication systems requiring broadband signal processing
• Test and measurement instrumentation
• Optical and ultrasound imaging systems
• Video distribution networks

Instrumentation, Op Amps, Buffer Amps Procurement Notes

Verify the specific suffix 'SD' corresponds to the 8-pin WSON package variant when sourcing. Confirm that the NOPB designation indicates compliance with RoHS standards and absence of lead-based materials. Ensure the supplier provides official datasheets matching the LMH6629 series specifications to validate the high-speed and low-noise characteristics required for your design.

Instrumentation, Op Amps, Buffer Amps Selection Notes

Select this component for applications demanding high bandwidth and minimal signal degradation. The decompensated design requires careful attention to circuit stability, as it is not unity-gain stable. Consider the 15.5 mA quiescent current consumption against system power constraints. The integrated shutdown feature offers an advantage in battery-operated devices where power conservation during idle periods is critical.

Instrumentation, Op Amps, Buffer Amps Part Context

This part belongs to the LMH6629 family of ultra-low noise high-speed operational amplifiers. It serves as a single-channel solution within a lineup that includes dual-channel variants like the LMH6628. The device is designed to replace older bipolar op-amps in high-frequency applications, offering superior noise figures and faster transient response while maintaining compatibility with standard single-supply voltages.

Instrumentation, Op Amps, Buffer Amps Replacement Considerations

Direct pin-compatible substitutes may include other members of the LMH662x family, such as the LMH6628 for dual-channel requirements. Verify that alternative components maintain the 1 GHz bandwidth and 1600 V/µs slew rate. Ensure any replacement supports the same 8-pin WSON footprint and 2.7 V to 5.5 V operating voltage range.