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- Stock & Prices $ Price & Stock for LMH6644MA
- Part Number LMH6644MA
- Manufacturer Texas Instruments
- Pin Count 14
- Part Category Integrated Circuit
- Package Category Small Outline Packages
- Footprint Name Small Outline Packages - D
- Released Date Apr 16, 2015
- Last Modified Date Mar 7, 2023 4:10 PM UTC
- Pinout / Pin List Click Here (Member Only)
LMH6644MA Details
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Manufacturer Part Number:
LMH6644MA
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Part Life Cycle Code:
Obsolete
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Part Package Code:
SOIC
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Package Description:
SOIC-14
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Pin Count:
14
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ECCN Code:
EAR99
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HTS Code:
8542.33.00.01
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Manufacturer:
Texas Instruments
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YTEOL:
0
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Amplifier Type:
OPERATIONAL AMPLIFIER
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Architecture:
VOLTAGE-FEEDBACK
LMH6644MA Frequently Asked Questions (FAQs)
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For optimal performance, it is recommended to follow a star-grounding layout, keep the input and output traces short and symmetrical, and use a solid ground plane. Additionally, decoupling capacitors should be placed close to the power pins, and the device should be placed away from high-frequency noise sources.
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To mitigate high-frequency noise and oscillations, ensure that the circuit is properly bypassed, use a low-ESR capacitor at the power pins, and add a series resistor (e.g., 10-20 ohms) at the output to dampen oscillations. Additionally, consider adding a ferrite bead or a common-mode choke to filter out high-frequency noise.
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The LMH6644MA can drive a maximum capacitive load of 100 pF. Exceeding this limit may cause oscillations or instability in the circuit. If a higher capacitive load is required, consider adding a series resistor or using a buffer stage to isolate the load.
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To ensure stability, ensure that the circuit has a gain of less than 10 dB at the frequency of oscillation, and that the phase margin is greater than 45 degrees. Additionally, avoid using long input traces, and keep the input impedance low to minimize phase shift.
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A 0.1 uF ceramic capacitor and a 10 uF tantalum capacitor in parallel, placed close to the power pins, are recommended for power supply decoupling. This helps to filter out high-frequency noise and ensure stable operation.
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LMH6644MA Overview
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About Texas Instruments
Texas Instruments (TI) designs and manufactures semiconductors and integrated circuits for a wide range of applications. The company's product portfolio includes analog chips, which are essential for managing power and signal functions in electronic devices, and embedded processors, which serve as the brains in various systems, enabling functionality in everything from industrial equipment to consumer electronics. TI's innovations in semiconductor technology have made it a leader in the industry.