LMP2232AMMX/NOPB Equivalent & Substitute Parts

Part Overview

The LMP2232AMMX/NOPB is a general purpose operational amplifier manufactured by Texas Instruments, configured as a 2-circuit differential, rail-to-rail output device in an 8-VSSOP surface mount package. This part is classified as Active product status and is RoHS3 compliant. The device is designed for low-power applications requiring dual-channel amplification with minimal input offset voltage and bias current. Substitute parts are identified based on matching functional requirements, package compatibility, and electrical parameter ranges that permit direct replacement in circuit designs.

Key Parameters

Parameter	Value	Unit
Manufacturer	Texas Instruments	—
Part Number	LMP2232AMMX/NOPB	—
Category	Linear, Amplifiers	—
Amplifier Type	General Purpose	—
Number of Circuits	2	—
Output Type	Differential, Rail-to-Rail	—
Package / Case	8-VSSOP, 8-MSOP (0.118", 3.00mm Width)	—
Mounting Type	Surface Mount	—
Voltage - Supply Span (Min)	1.6	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Slew Rate	0.048	V/µs
Gain Bandwidth Product	130	kHz
Current - Input Bias	0.02	pA
Voltage - Input Offset	10	µV
Current - Supply	19 (x2 Channels)	µA
Current - Output / Channel	30	mA
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—
Product Status	Active	—

Substitute Part Grouping Explanation

Substitute parts for the LMP2232AMMX/NOPB are selected based on the following criteria:

Primary Matching Criteria:

Number of Circuits: 2 (dual-channel configuration)
Output Type: Rail-to-Rail capability
Package Type: 8-pin surface mount (8-VSSOP, 8-MSOP, or 8-MiniSO)
Mounting Type: Surface Mount
Operating Temperature Range: Minimum -40°C to maximum 125°C or higher
Supply Voltage Range: Minimum 1.5V to 1.8V, Maximum 5.5V
RoHS3 Compliance and MSL Level 1

Secondary Compatibility Parameters:

Slew Rate: 0.048 V/µs or higher
Gain Bandwidth Product: 130 kHz or higher
Input Bias Current: 0.02 pA to 1 pA range
Input Offset Voltage: 10 µV to 1 mV range
Supply Current: 4.4 µA to 700 nA per channel
Output Current per Channel: 4 mA to 115 mA

Substitutes are grouped into three categories based on amplifier type and performance characteristics: General Purpose amplifiers (MCP6422-E/MS, MCP6422T-E/MS), CMOS amplifiers with ultra-low power consumption (BU7266FVM-TR, BU7266SFVM-TR, OA2NP34S), and high-performance CMOS amplifiers (TLV342IDGKR, BU7486FVM-TR).

Parameter Comparison

Parameter	LMP2232AMMX/NOPB	TLV342IDGKR	BU7266FVM-TR	BU7266SFVM-TR	BU7486FVM-TR	MCP6422-E/MS	MCP6422T-E/MS	OA2NP34S
Manufacturer	Texas Instruments	Texas Instruments	Rohm Semiconductor	Rohm Semiconductor	Rohm Semiconductor	Microchip Technology	Microchip Technology	STMicroelectronics
Amplifier Type	General Purpose	CMOS	CMOS	CMOS	CMOS	General Purpose	General Purpose	CMOS
Number of Circuits	2	2	2	2	2	2	2	2
Output Type	Differential, Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail	Rail-to-Rail
Package / Case	8-VSSOP, 8-MSOP	8-VSSOP, 8-MSOP	8-VSSOP, 8-MSOP	8-VSSOP, 8-MSOP	8-VSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP	8-TSSOP, 8-MSOP
Mounting Type	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount	Surface Mount
Voltage - Supply Span (Min)	1.6 V	1.5 V	1.8 V	1.8 V	3.0 V	1.8 V	1.8 V	1.5 V
Voltage - Supply Span (Max)	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V	5.5 V
Operating Temperature (Min)	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C	-40°C
Operating Temperature (Max)	125°C	125°C	85°C	105°C	105°C	125°C	125°C	85°C
Slew Rate	0.048 V/µs	1 V/µs	0.0024 V/µs	0.0024 V/µs	10 V/µs	0.05 V/µs	0.05 V/µs	0.003 V/µs
Gain Bandwidth Product	130 kHz	2.3 MHz	4 kHz	4 kHz	10 MHz	90 kHz	90 kHz	9 kHz
Current - Input Bias	0.02 pA	1 pA	1 pA	1 pA	1 pA	1 pA	1 pA	1 pA
Voltage - Input Offset	10 µV	300 µV	1 mV	1 mV	1 mV	1 mV	1 mV	100 µV
Current - Supply (per channel)	19 µA	75 µA	700 nA	700 nA	6 mA	4.4 µA	4.4 µA	650 nA
Current - Output / Channel	30 mA	115 mA	4 mA	4 mA	12 mA	22 mA	22 mA	11 mA
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)	1 (Unlimited)
Product Status	Active	Active	Active	Active	Active	Active	Active	Active

Engineering Selection Recommendations

All substitute parts listed are Active product status devices with RoHS3 compliance and MSL Level 1 rating, meeting regulatory and environmental requirements equivalent to the LMP2232AMMX/NOPB.

For applications requiring closest electrical performance match: MCP6422-E/MS and MCP6422T-E/MS are general purpose amplifiers with slew rate (0.05 V/µs) and gain bandwidth product (90 kHz) most closely aligned to the LMP2232AMMX/NOPB. These parts maintain similar input offset voltage (1 mV) and support the full -40°C to 125°C operating temperature range. Packaging is available in 8-TSSOP and 8-MSOP configurations.

For applications requiring ultra-low power consumption: BU7266FVM-TR, BU7266SFVM-TR, and OA2NP34S offer supply current per channel of 700 nA to 650 nA, significantly lower than the LMP2232AMMX/NOPB (19 µA). These CMOS devices are suitable for battery-powered or energy-constrained applications. BU7266SFVM-TR extends operating temperature to 105°C; OA2NP34S is limited to 85°C maximum.

For applications requiring higher bandwidth and slew rate: TLV342IDGKR (2.3 MHz gain bandwidth product, 1 V/µs slew rate) and BU7486FVM-TR (10 MHz gain bandwidth product, 10 V/µs slew rate) provide enhanced dynamic performance. BU7486FVM-TR requires minimum 3.0 V supply voltage and is limited to 105°C maximum operating temperature.

Package considerations: All substitute parts are available in 8-pin surface mount packages (8-VSSOP, 8-MSOP, or 8-MiniSO). Pin compatibility and PCB layout must be verified for direct board-level substitution.

Frequently Asked Questions (FAQ)

Q: Can MCP6422T-E/MS directly replace LMP2232AMMX/NOPB in all applications?

A: MCP6422T-E/MS is compatible for applications where the slew rate of 0.05 V/µs and gain bandwidth product of 90 kHz meet circuit requirements. Both devices support 1.8 V to 5.5 V supply range and -40°C to 125°C operating temperature. Pin configuration and package footprint (8-MSOP) are compatible. Verify input offset voltage tolerance (1 mV for MCP6422T-E/MS versus 10 µV for LMP2232AMMX/NOPB) for precision applications.

Q: What is the key difference between BU7266FVM-TR and BU7266SFVM-TR?

A: Both devices are CMOS amplifiers with identical electrical specifications: 0.0024 V/µs slew rate, 4 kHz gain bandwidth product, 700 nA supply current per channel, and 1 mV input offset voltage. The primary difference is maximum operating temperature: BU7266FVM-TR is rated to 85°C, while BU7266SFVM-TR extends to 105°C. Select BU7266SFVM-TR for applications requiring higher temperature operation.

Q: Why does BU7486FVM-TR require a minimum 3.0 V supply voltage?

A: BU7486FVM-TR is specified with a minimum supply voltage of 3.0 V, compared to 1.8 V for most other substitutes and 1.6 V for the LMP2232AMMX/NOPB. This device is not suitable for low-voltage applications below 3.0 V. Verify circuit supply voltage before selection.

Q: Is OA2NP34S suitable for applications requiring 125°C operation?

A: No. OA2NP34S is rated for maximum operating temperature of 85°C. For applications requiring -40°C to 125°C operation, select MCP6422-E/MS, MCP6422T-E/MS, or TLV342IDGKR.

Q: What packaging options are available for substitute parts?

A: Substitute parts are available in three 8-pin surface mount package types: 8-VSSOP (0.118" width, 3.00mm), 8-MSOP (0.118" width, 3.00mm or 0.110" width, 2.80mm), and 8-MiniSO (0.118" width, 3.00mm). Verify PCB footprint compatibility before board-level substitution. Packaging variants are specified in the Supplier Device Package field for each part.

Q: Which substitute offers the lowest input bias current?

A: LMP2232AMMX/NOPB has the lowest input bias current at 0.02 pA. All substitute parts listed have input bias current of 1 pA, which is 50 times higher. For applications requiring ultra-low input bias current, the LMP2232AMMX/NOPB is the preferred choice.

Q: Can TLV342IDGKR replace LMP2232AMMX/NOPB in precision analog circuits?

A: TLV342IDGKR has higher input offset voltage (300 µV) compared to LMP2232AMMX/NOPB (10 µV), making it less suitable for precision applications requiring tight offset voltage tolerance. However, TLV342IDGKR offers superior bandwidth (2.3 MHz) and slew rate (1 V/µs) for high-speed signal processing. Application requirements determine suitability.

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