AD8072ARMZ Equivalent & Substitute Parts

Part Overview

The AD8072ARMZ is a dual-channel current feedback amplifier manufactured by Analog Devices Inc., designed for video and high-speed signal conditioning applications. This device operates with a -3dB bandwidth of 100 MHz and a slew rate of 500V/µs, making it suitable for applications requiring moderate-speed signal amplification with current feedback topology.

The AD8072ARMZ is designated as Last Time Buy, indicating that this part number will no longer be manufactured after existing inventory is depleted. Identification of equivalent and substitute parts is necessary to ensure design continuity and support for new production builds or long-term system maintenance.

Substiute Parts

AD8072ARMZ

Analog Devices Inc.In Stock: 1368AD8072ARMZ Datasheet

Current PartRFQ

LMH6724MAX/NOPB

National SemiconductorIn Stock: 1695LMH6724MAX/NOPB Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD8072ARMZ is determined by the following critical parameters:

Functional Requirements:

• Amplifier topology: Current feedback
• Number of circuits: 2 (dual-channel configuration)
• Mounting type: Surface mount

Electrical Performance Criteria:

• -3dB bandwidth: Substitute must equal or exceed 100 MHz
• Slew rate: Substitute must equal or exceed 500V/µs
• Current output per channel: Substitute must equal or exceed 30 mA
• Supply voltage compatibility: Substitute must support the required supply voltage range

Physical and Compliance Requirements:

• Package type: 8-pin surface mount (8-SOIC or 8-MSOP compatible footprints)
• RoHS compliance: ROHS3 Compliant
• Moisture sensitivity: MSL 1 or equivalent

The LMH6724MAX/NOPB qualifies as a substitute based on superior electrical performance across all critical parameters while maintaining functional equivalence in topology, circuit count, and surface mount packaging.

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute: LMH6724MAX/NOPB

The LMH6724MAX/NOPB is the qualified substitute for the AD8072ARMZ based on the following engineering criteria:

Functional Equivalence: The LMH6724MAX/NOPB maintains the dual-channel current feedback amplifier topology required for direct functional replacement. Both devices are classified as Linear Amplifiers with identical circuit count.

Performance Superiority: The substitute part exceeds the electrical specifications of the primary part across all measured parameters. The -3dB bandwidth of 370 MHz substantially exceeds the 100 MHz requirement, and the slew rate of 600V/µs surpasses the 500V/µs specification. Output current capability of 110 mA per channel exceeds the 30 mA requirement, providing additional design margin.

Supply Voltage Compatibility: The LMH6724MAX/NOPB operates within a 4.5V to 12V supply range, which encompasses the single-supply operating window of the AD8072ARMZ (5V to 12V). Designs utilizing the AD8072ARMZ in single-supply configurations are directly compatible with the substitute.

Product Status and Availability: The LMH6724MAX/NOPB maintains Active product status, ensuring long-term availability and continued manufacturing support. This addresses the Last Time Buy status of the AD8072ARMZ.

Compliance and Regulatory: Both parts carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications, ensuring equivalent regulatory treatment. The substitute maintains compliance with export control and tariff requirements.

Package Consideration: The substitute utilizes an 8-SOIC package (0.154", 3.90mm width) compared to the 8-MSOP package (0.118", 3.00mm width) of the primary part. PCB layout modification is required to accommodate the larger package footprint. Both packages are standard surface mount configurations with identical pin counts and compatible pinout arrangements for current feedback amplifier topology.

Frequently Asked Questions (FAQ)

Q: Can the LMH6724MAX/NOPB be used as a direct pin-for-pin replacement for the AD8072ARMZ?

A: The LMH6724MAX/NOPB is functionally equivalent and electrically compatible but requires PCB layout modification due to package size differences. The AD8072ARMZ uses an 8-MSOP package (0.118" width), while the substitute uses an 8-SOIC package (0.154" width). Pin assignments are compatible for current feedback amplifier applications, but physical footprint changes necessitate PCB redesign.

Q: What are the key electrical advantages of the LMH6724MAX/NOPB over the AD8072ARMZ?

A: The substitute provides superior performance across three critical parameters: -3dB bandwidth increases from 100 MHz to 370 MHz, slew rate increases from 500V/µs to 600V/µs, and output current per channel increases from 30 mA to 110 mA. These enhancements provide additional design margin and support higher-frequency signal conditioning applications.

Q: Are there supply voltage compatibility issues when substituting the LMH6724MAX/NOPB?

A: No compatibility issues exist for single-supply applications. The AD8072ARMZ operates at 5V to 12V in single-supply mode, and the LMH6724MAX/NOPB operates at 4.5V to 12V, providing full overlap. Designs using dual-supply operation (±2.5V to ±6V) with the AD8072ARMZ require evaluation of the substitute's single-supply specification.

Q: What is the impact of the larger package size on circuit board design?

A: The 8-SOIC package is 0.04 inches (approximately 1mm) wider than the 8-MSOP package. This requires modification of the PCB footprint, trace routing, and component placement. The larger package may impact board density in space-constrained applications but does not affect electrical performance or signal integrity.

Q: Is the LMH6724MAX/NOPB suitable for video amplifier applications?

A: Yes. The LMH6724MAX/NOPB is classified as a current feedback amplifier with bandwidth and slew rate specifications suitable for video signal conditioning. The 370 MHz bandwidth exceeds typical video amplifier requirements and provides enhanced performance compared to the AD8072ARMZ.

Q: What is the product lifecycle status of the substitute part?

A: The LMH6724MAX/NOPB maintains Active product status, indicating ongoing manufacturing and long-term availability. This contrasts with the AD8072ARMZ, which is designated Last Time Buy and will be discontinued after existing inventory is exhausted.

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

A: Both parts carry identical ECCN (EAR99) and HTSUS (8542.33.0001) classifications. No regulatory or compliance differences exist between the AD8072ARMZ and LMH6724MAX/NOPB for export control or tariff purposes.

Q: Can the substitute part be used in existing designs without circuit modification?

A: Electrical circuit modifications are not required. The substitute maintains current feedback amplifier topology and is electrically compatible with existing designs. PCB layout modification is necessary to accommodate the different package footprint. Functional testing is recommended to confirm performance in the specific application context.