LM8272MMX Equivalent & Substitute Parts

Part Overview

The LM8272MMX is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a dual-channel (2 circuit) rail-to-rail output device in an 8-VSSOP surface mount package. This component is classified as obsolete, indicating discontinued production and limited availability in the original configuration.

Identification of equivalent and substitute parts is necessary due to the obsolete status of the LM8272MMX. Alternative part numbers within the LM8272 series and cross-manufacturer equivalents provide continued access to functionally compatible components for new designs, repairs, and production continuity.

Key Parameters

Parameter	Value
Amplifier Type	General Purpose
Number of Circuits	2
Output Type	Rail-to-Rail
Slew Rate	15 V/µs
Gain Bandwidth Product	15 MHz
-3dB Bandwidth	12.5 MHz
Current - Input Bias	2 µA
Voltage - Input Offset	700 µV
Current - Supply (x2 Channels)	1.9 mA
Current - Output / Channel	65 mA
Voltage - Supply Span (Min)	2.5 V
Voltage - Supply Span (Max)	24 V
Operating Temperature	-40°C to 85°C
Mounting Type	Surface Mount
Package / Case	8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
Supplier Device Package	8-VSSOP

Substitute Part Grouping Explanation

Substitution of the LM8272MMX is determined by strict equivalence across the following critical parameters:

Electrical Equivalence Criteria:

Amplifier Type: General Purpose
Number of Circuits: 2
Output Type: Rail-to-Rail
Slew Rate: 15 V/µs
Gain Bandwidth Product: 15 MHz
-3dB Bandwidth: 12.5 MHz
Current - Input Bias: 2 µA
Voltage - Input Offset: 700 µV
Current - Supply: 1.9 mA (x2 Channels)
Current - Output / Channel: 65 mA
Voltage - Supply Span: 2.5 V to 24 V
Operating Temperature: -40°C to 85°C

Mechanical Equivalence Criteria:

Mounting Type: Surface Mount
Package / Case: 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)

Substitute parts are grouped into two categories:

Category 1: Parametric Equivalents (Texas Instruments LM8272 Series) Parts LM8272MM, LM8272MM/NOPB, and LM8272MMX/NOPB maintain identical electrical and mechanical specifications to the LM8272MMX. These parts differ only in packaging configuration (Cut Tape & Digi-Reel® versus tube) and product status (Last Time Buy or Active versus Obsolete). All three are direct functional replacements.

Category 2: Manufacturer Recommended Equivalent (Analog Devices AD8066 Series) Parts AD8066ARMZ and AD8066ARMZ-REEL7 are cross-manufacturer alternatives. While these parts share the same package footprint and dual-channel rail-to-rail configuration, they exhibit different electrical performance characteristics, particularly in slew rate and bandwidth specifications.

Parameter Comparison

Parameter	LM8272MMX	LM8272MM	LM8272MM/NOPB	LM8272MMX/NOPB	AD8066ARMZ	AD8066ARMZ-REEL7
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments	Texas Instruments	Analog Devices Inc.	Analog Devices Inc.
Amplifier Type	General Purpose	General Purpose	General Purpose	General Purpose	Voltage Feedback	Voltage Feedback
Number of Circuits	2	2	2	2	2	2
Output Type	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Slew Rate	15 V/µs	15 V/µs	15 V/µs	15 V/µs	180 V/µs	180 V/µs
Gain Bandwidth Product	15 MHz	15 MHz	15 MHz	15 MHz	Not specified	Not specified
-3dB Bandwidth	12.5 MHz	12.5 MHz	12.5 MHz	12.5 MHz	120 MHz	120 MHz
Current - Input Bias	2 µA	2 µA	2 µA	2 µA	3 pA	3 pA
Voltage - Input Offset	700 µV	700 µV	700 µV	700 µV	400 µV	400 µV
Current - Supply (x2 Channels)	1.9 mA	1.9 mA	1.9 mA	1.9 mA	6.6 mA	6.6 mA
Current - Output / Channel	65 mA	65 mA	65 mA	65 mA	30 mA	30 mA
Voltage - Supply Span (Min)	2.5 V	2.5 V	2.5 V	2.5 V	5 V	5 V
Voltage - Supply Span (Max)	24 V	24 V	24 V	24 V	24 V	24 V
Operating Temperature	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C	-40°C to 85°C
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Package / Case	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Product Status	Obsolete	Last Time Buy	Last Time Buy	Active	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

For Direct Functional Replacement (Identical Electrical Performance):

Select LM8272MMX/NOPB as the primary substitute. This part maintains complete electrical and mechanical equivalence to the LM8272MMX while offering Active product status, ensuring long-term availability and supply chain stability. The NOPB designation indicates lead-free RoHS3 compliance, meeting current environmental and regulatory requirements.

Alternative options within the LM8272 series include LM8272MM and LM8272MM/NOPB. Both are functionally identical but carry Last Time Buy status, indicating limited future availability. These parts are suitable for immediate requirements but should not be selected for new long-term production designs.

For Cross-Manufacturer Substitution (Performance Enhancement):

The AD8066ARMZ and AD8066ARMZ-REEL7 parts are manufacturer-recommended alternatives that provide enhanced electrical performance. These parts are suitable only when circuit design permits operation with the following parameter differences:

Minimum supply voltage increased from 2.5 V to 5 V
Supply current increased from 1.9 mA to 6.6 mA per dual-channel configuration
Output current per channel reduced from 65 mA to 30 mA
Slew rate increased from 15 V/µs to 180 V/µs
Bandwidth increased from 12.5 MHz to 120 MHz
Input bias current reduced from 2 µA to 3 pA

AD8066ARMZ-REEL7 is preferred over AD8066ARMZ due to higher inventory availability (46,449 units versus 2,400 units) and Cut Tape & Digi-Reel® packaging, which supports automated assembly processes.

Compliance Considerations:

All recommended substitutes except the original LM8272MMX are ROHS3 compliant. For applications requiring RoHS compliance, LM8272MMX/NOPB, LM8272MM/NOPB, or AD8066ARMZ-REEL7 are appropriate selections.

Frequently Asked Questions (FAQ)

Q: Can LM8272MM be used as a direct replacement for LM8272MMX?

A: Yes. LM8272MM is a parametric equivalent with identical electrical specifications and package footprint. The difference is packaging configuration (Cut Tape & Digi-Reel® versus tube) and product status (Last Time Buy versus Obsolete). Functional performance in the circuit is equivalent.

Q: What is the difference between LM8272MM and LM8272MM/NOPB?

A: Both parts are electrically and mechanically identical. The /NOPB suffix indicates lead-free, RoHS3-compliant manufacturing. For new designs and applications requiring environmental compliance, LM8272MM/NOPB is the appropriate selection.

Q: Why is LM8272MMX/NOPB recommended over other LM8272 variants?

A: LM8272MMX/NOPB combines three advantages: Active product status (ensuring continued availability), ROHS3 compliance (meeting regulatory requirements), and identical electrical performance to the obsolete LM8272MMX. This part provides the best long-term supply chain security.

Q: Can AD8066ARMZ replace LM8272MMX in all applications?

A: No. While AD8066ARMZ shares the same package footprint and dual-channel rail-to-rail configuration, it has different electrical specifications. The minimum supply voltage is 5 V (versus 2.5 V for LM8272MMX), and output current per channel is 30 mA (versus 65 mA). Substitution is valid only when circuit design accommodates these parameter differences.

Q: What is the significance of the -REEL7 suffix on AD8066ARMZ-REEL7?

A: The -REEL7 suffix indicates the part is supplied on a 7-inch reel in Cut Tape format, optimized for automated pick-and-place assembly. This packaging is standard for high-volume production. AD8066ARMZ (without -REEL7) is supplied in tube packaging, suitable for lower-volume or manual assembly applications.

Q: Are all substitute parts compatible with the 8-VSSOP package footprint?

A: All substitute parts use the 8-TSSOP or 8-MSOP package with 0.118" width and 3.00mm height, which is mechanically compatible with the 8-VSSOP footprint. PCB layout and solder reflow profiles remain unchanged.

Q: What inventory levels should be considered when selecting a substitute?

A: Current inventory levels are: LM8272MMX (35,546 units), LM8272MM/NOPB (38,100 units), LM8272MMX/NOPB (1,660 units), AD8066ARMZ-REEL7 (46,449 units), and AD8066ARMZ (2,400 units). For applications requiring immediate large-volume procurement, AD8066ARMZ-REEL7 or LM8272MM/NOPB offer the highest available stock.

Q: Is the LM8272 series still in production?

A: LM8272MM and LM8272MM/NOPB are in Last Time Buy status, indicating production discontinuation with limited remaining availability. LM8272MMX/NOPB is Active. For new designs requiring long-term component availability, LM8272MMX/NOPB is the recommended selection within the LM8272 family.

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