LMH6559MA Buffer Amplifier Equivalent & Substitute Parts

Part Overview

The LMH6559MA is a single-circuit buffer amplifier integrated circuit manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device functions as a high-speed buffer with a -3dB bandwidth of 1.75 GHz and slew rate of 4580 V/µs, suitable for signal conditioning and impedance matching applications in analog signal chains.

The LMH6559MA carries a Last Time Buy product status, indicating that Texas Instruments has discontinued active production. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for new designs or production runs.

Substiute Parts

LMH6559MA

Texas InstrumentsIn Stock: 5188LMH6559MA Datasheet

Current PartRFQ

LMH6559MA/NOPB

Texas InstrumentsIn Stock: 1090LMH6559MA/NOPB Datasheet

DirectRFQ

LMH6559MAX/NOPB

Texas InstrumentsIn Stock: 1590LMH6559MAX/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the LMH6559MA are identified based on strict electrical and mechanical parameter equivalence. All substitute candidates must satisfy the following criteria:

Electrical Equivalence Requirements:

• Amplifier Type: Buffer
• Number of Circuits: 1
• Slew Rate: 4580 V/µs
• -3dB Bandwidth: 1.75 GHz
• Current - Input Bias: 3 µA
• Voltage - Input Offset: 3 mV
• Current - Supply: 10 mA
• Current - Output / Channel: 74 mA
• Voltage - Supply Span: 3 V to 10 V
• Operating Temperature Range: -40°C to 85°C

Mechanical & Packaging Equivalence Requirements:

• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Supplier Device Package: 8-SOIC

Compliance & Regulatory Equivalence:

• RoHS Status: ROHS3 Compliant
• Moisture Sensitivity Level (MSL): 1 (Unlimited)
• REACH Status: REACH Unaffected
• ECCN: EAR99
• HTSUS: 8542.33.0001

All identified substitutes meet these criteria and are manufactured by Texas Instruments under the LMH6559 base product number with different packaging designations.

Parameter Comparison

Engineering Selection Recommendations

LMH6559MA/NOPB is a direct functional equivalent to the LMH6559MA. Both parts are supplied in Tube packaging and share identical electrical specifications and compliance certifications. The LMH6559MA/NOPB carries Active product status, making it the preferred choice for new designs and ongoing production requirements. This part is suitable for direct substitution in applications currently using the LMH6559MA.

LMH6559MAX/NOPB is the manufacturer-recommended substitute for the LMH6559MA. This part is supplied in Tape & Reel (TR) packaging format, which is standard for high-volume manufacturing and automated assembly processes. The LMH6559MAX/NOPB also carries Active product status and is fully equivalent in electrical performance and compliance. Selection of this part is appropriate for production environments requiring reel-based component delivery and automated pick-and-place assembly.

Both substitute parts are manufactured by Texas Instruments and maintain full compliance with ROHS3, REACH, and all applicable regulatory standards. The choice between LMH6559MA/NOPB and LMH6559MAX/NOPB depends on packaging and supply chain requirements rather than electrical performance.

Frequently Asked Questions (FAQ)

Q: Can LMH6559MA/NOPB be used as a direct replacement for LMH6559MA?

A: Yes. The LMH6559MA/NOPB is electrically and mechanically identical to the LMH6559MA. Both parts feature the same 8-SOIC package, identical electrical specifications, and equivalent compliance certifications. The primary difference is product status: LMH6559MA/NOPB is Active, while LMH6559MA is Last Time Buy.

Q: What is the difference between LMH6559MA/NOPB and LMH6559MAX/NOPB?

A: The electrical and functional specifications are identical. The difference lies in packaging format: LMH6559MA/NOPB is supplied in Tube packaging, while LMH6559MAX/NOPB is supplied in Tape & Reel (TR) format. Tape & Reel packaging is optimized for automated assembly and high-volume production environments.

Q: Are all three parts pin-compatible?

A: Yes. All three parts—LMH6559MA, LMH6559MA/NOPB, and LMH6559MAX/NOPB—use the 8-SOIC package with identical pinout and mechanical dimensions (0.154" width, 3.90mm). They are fully pin-compatible and require no circuit board modifications for substitution.

Q: Which part should be selected for a new design?

A: For new designs, select either LMH6559MA/NOPB or LMH6559MAX/NOPB, both of which carry Active product status. Choose LMH6559MA/NOPB for tube-based supply chains or LMH6559MAX/NOPB for automated manufacturing environments requiring reel-based delivery.

Q: Are there any compliance or regulatory differences between these parts?

A: No. All three parts are ROHS3 Compliant, REACH Unaffected, and carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for all parts.

Q: What is the significance of the /NOPB suffix?

A: The /NOPB suffix indicates that the part is supplied without plumbum (lead-free). This designation confirms RoHS3 compliance and environmental compliance with lead-free manufacturing standards.

Q: Can these parts be used interchangeably in existing production?

A: Yes, within the constraints of your supply chain and assembly process. If your production line uses tube-based component feeding, LMH6559MA/NOPB is appropriate. If your line uses automated reel-based systems, LMH6559MAX/NOPB is the standard choice. Electrical performance and reliability are equivalent.