LMH6722MAX Equivalent & Substitute Parts

Part Overview

The LMH6722MAX is a quad-channel current feedback video amplifier manufactured by Texas Instruments, housed in a 14-SOIC surface mount package. This integrated circuit delivers high-speed amplification with a -3dB bandwidth of 400 MHz and slew rate of 1800V/µs, making it suitable for video and wideband signal processing applications. The device operates from single or dual supply voltages and is classified as obsolete, necessitating identification of functionally equivalent alternatives for ongoing design support and procurement.

Substiute Parts

LMH6722MAX

Texas InstrumentsIn Stock: 1557LMH6722MAX Datasheet

Current PartRFQ

LMH6722MAX/NOPB

National SemiconductorIn Stock: 1712LMH6722MAX/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LMH6722MAX is determined by strict equivalence across the following critical parameters:

Electrical Specifications:

• Number of circuits: 4 channels
• -3dB bandwidth: 400 MHz
• Slew rate: 1800V/µs
• Supply current: 5.6 mA
• Output current per channel: 70 mA
• Supply voltage range: 8V ~ 12.5V (single), ±4V ~ 6.25V (dual)

Physical & Packaging Requirements:

• Package type: 14-SOIC
• Package dimensions: 0.154" width (3.90mm)
• Mounting type: Surface Mount

Compliance & Environmental:

• RoHS3 compliance
• Moisture sensitivity level: 1

The substitute part LMH6722MAX/NOPB maintains identical electrical performance and physical packaging specifications, enabling direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

LMH6722MAX/NOPB (National Semiconductor) is the direct functional equivalent for the obsolete LMH6722MAX. Selection criteria are based on the following factors:

Product Status Consideration: The LMH6722MAX is classified as obsolete, while the LMH6722MAX/NOPB maintains active product status. This distinction is significant for long-term supply chain reliability and technical support availability.

Electrical & Physical Equivalence: All critical electrical parameters—bandwidth, slew rate, supply current, output current, and supply voltage ranges—are identical between the two devices. The 14-SOIC package specifications match exactly, ensuring pin-for-pin compatibility and direct PCB layout compatibility without redesign.

Compliance Alignment: Both devices are manufactured to support current industrial standards. The LMH6722MAX/NOPB carries the "/NOPB" designation, indicating lead-free (Pb-free) processing, which aligns with modern manufacturing and environmental compliance requirements.

Procurement Availability: The LMH6722MAX/NOPB demonstrates active inventory levels (1700 units), providing superior long-term procurement assurance compared to the obsolete original part.

Frequently Asked Questions (FAQ)

Q: Can LMH6722MAX/NOPB be used as a direct replacement for LMH6722MAX?

A: Yes. The LMH6722MAX/NOPB is electrically and mechanically equivalent. All electrical specifications (bandwidth, slew rate, supply current, output current, and supply voltage ranges) are identical. The 14-SOIC package dimensions and pin configuration are identical, enabling direct substitution without circuit redesign or PCB layout modification.

Q: What does the "/NOPB" suffix indicate?

A: The "/NOPB" suffix designates a lead-free (Pb-free) version of the component, manufactured without lead content. This designation reflects compliance with modern environmental and manufacturing standards.

Q: Are there any differences in supply voltage requirements between the two parts?

A: No. Both the LMH6722MAX and LMH6722MAX/NOPB operate identically across the specified supply voltage ranges: 8V to 12.5V for single supply operation, and ±4V to ±6.25V for dual supply operation.

Q: Is the 14-SOIC package identical for both parts?

A: Yes. Both devices use the 14-SOIC package with identical dimensions (0.154" width, 3.90mm). Surface mount assembly processes and PCB footprints are directly compatible.

Q: What is the significance of the product status difference (Obsolete vs. Active)?

A: The LMH6722MAX is classified as obsolete, indicating Texas Instruments has discontinued production and support. The LMH6722MAX/NOPB maintains active status, ensuring ongoing availability, technical documentation updates, and manufacturer support. For new designs or long-term production requirements, the active part is preferred.

Q: Are there any performance differences in bandwidth or slew rate?

A: No. Both devices deliver identical -3dB bandwidth of 400 MHz and slew rate of 1800V/µs. Current consumption specifications are also identical: 5.6 mA supply current and 70 mA output current per channel.

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

A: Yes. The electrical and physical specifications are identical, enabling direct substitution in existing circuit designs without modification to schematics, PCB layouts, or component values.