LMV824MT Equivalent & Substitute Parts

Part Overview

The LMV824MT is a general-purpose operational amplifier featuring four circuits in a 14-TSSOP surface-mount package. Manufactured by Texas Instruments, this device provides rail-to-rail output capability with a 5.6 MHz gain-bandwidth product and operates across a 2.5 V to 5.5 V supply range. The LMV824MT is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. Substitute parts must maintain functional compatibility while meeting current availability and compliance standards.

Key Parameters

Parameter	LMV824MT
Amplifier Type	General Purpose
Number of Circuits	4
Output Type	Rail-to-Rail
Slew Rate	2 V/µs
Gain Bandwidth Product	5.6 MHz
Current - Input Bias	40 nA
Voltage - Input Offset	1 mV
Current - Supply	1 mA (x4 Channels)
Current - Output / Channel	45 mA
Voltage - Supply Span (Min)	2.5 V
Voltage - Supply Span (Max)	5.5 V
Operating Temperature	-40°C to 85°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)
Mounting Type	Surface Mount
Product Status	Obsolete
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitute parts for the LMV824MT are grouped based on the following critical parameters that determine functional compatibility:

Primary Substitution Criteria:

Number of circuits: 4 (quad configuration required)
Output type: Rail-to-rail capability
Package type: 14-TSSOP surface mount
Supply voltage range: Minimum 2.5 V, maximum 5.5 V
Operating temperature range: Minimum -40°C
Mounting type: Surface mount

Substitution Categories:

Category 1: Direct Equivalents (Same Amplifier Type) Parts maintaining general-purpose amplifier classification with comparable performance metrics. These include LMV824MT/NOPB (Texas Instruments, active status), LMV824AIPT (STMicroelectronics, automotive-qualified), and LMV824DTBR2G (onsemi). These parts preserve the original design intent with minimal circuit redesign requirements.

Category 2: Performance-Equivalent Alternatives (Different Amplifier Type) Parts with different amplifier architectures (CMOS vs. bipolar) but equivalent functional performance in 14-TSSOP packaging. These include AD8619WARUZ-R7 and AD8619WARUZ-RL (Analog Devices, CMOS type), MCP619-I/ST and MCP619T-I/ST (Microchip, CMOS type), and MAX4403AUD+ variants (Analog Devices/Maxim, general-purpose type). These require verification of circuit-specific performance characteristics.

Category 3: Package-Variant Alternatives Parts with identical electrical specifications but different package types. MCP6284-E/SL uses 14-SOIC packaging instead of 14-TSSOP, requiring PCB layout modifications.

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Circuits	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA)	Supply Min (V)	Supply Max (V)	Temp Range (°C)	Package	Status	RoHS
LMV824MT	Texas Instruments	General Purpose	4	2.0	5.6	40	2.5	5.5	-40 to 85	14-TSSOP	Obsolete	Non-compliant
LMV824MT/NOPB	Texas Instruments	General Purpose	4	2.0	5.6	40	2.5	5.5	-40 to 85	14-TSSOP	Active	ROHS3
LMV824AIPT	STMicroelectronics	General Purpose	4	1.9	5.5	60	2.5	5.5	-40 to 125	14-TSSOP	Active	ROHS3
LMV824DTBR2G	onsemi	General Purpose	4	2.0	5.6	119	2.7	5.5	-40 to 85	14-TSSOP	Active	ROHS3
AD8619WARUZ-R7	Analog Devices	CMOS	4	0.1	0.4	0.0002	1.8	5.0	-40 to 125	14-TSSOP	Active	ROHS3
AD8619WARUZ-RL	Analog Devices	CMOS	4	0.1	0.4	0.0002	1.8	5.0	-40 to 125	14-TSSOP	Active	ROHS3
MAX4403AUD+	Analog Devices/Maxim	General Purpose	4	1.0	0.8	0.0001	2.5	5.5	-40 to 125	14-TSSOP	Active	ROHS3
MAX4403AUD+T	Analog Devices/Maxim	General Purpose	4	1.0	0.8	0.0001	2.5	5.5	-40 to 125	14-TSSOP	Active	ROHS3
MCP619-I/ST	Microchip Technology	CMOS	4	0.08	0.19	5	2.3	5.5	-40 to 85	14-TSSOP	Active	ROHS3
MCP619T-I/ST	Microchip Technology	CMOS	4	0.08	0.19	5	2.3	5.5	-40 to 85	14-TSSOP	Active	ROHS3
MCP6284-E/SL	Microchip Technology	General Purpose	4	2.5	5.0	1	2.2	5.5	-40 to 125	14-SOIC	Active	ROHS3

Engineering Selection Recommendations

For Direct Replacement (Recommended Primary Choice):

LMV824MT/NOPB is the optimal substitute. This part maintains identical electrical specifications to the original LMV824MT while offering active product status and ROHS3 compliance. No circuit redesign is required. Packaging is identical (14-TSSOP), and supply voltage range, operating temperature, and performance metrics are preserved.

For Automotive Applications:

LMV824AIPT (STMicroelectronics) is qualified to AEC-Q100 automotive standards. This part extends the operating temperature range to 125°C and maintains general-purpose amplifier classification. Input bias current is slightly elevated (60 nA vs. 40 nA), and supply current is reduced to 300 µA per channel. This part is suitable for automotive-grade designs requiring enhanced temperature performance.

For High-Volume Production with Equivalent Performance:

LMV824DTBR2G (onsemi) provides active status and ROHS3 compliance with identical slew rate and gain-bandwidth product. Input bias current is elevated (119 nA), and minimum supply voltage is 2.7 V instead of 2.5 V. This part is suitable when onsemi supply chain availability is preferred.

For Low-Power Applications:

MCP619-I/ST or MCP619T-I/ST (Microchip Technology) offer significantly reduced supply current (19 µA per channel vs. 1 mA). These CMOS amplifiers sacrifice bandwidth (190 kHz vs. 5.6 MHz) and slew rate (0.08 V/µs vs. 2.0 V/µs) but are suitable for battery-powered or ultra-low-power designs. Operating temperature range is -40°C to 85°C.

For Extended Temperature Range:

MAX4403AUD+ or MAX4403AUD+T (Analog Devices/Maxim) extend operating temperature to 125°C. These parts offer extremely low input bias current (0.1 pA) but reduced bandwidth (800 kHz) and slew rate (1.0 V/µs). Suitable for precision instrumentation requiring extended temperature operation.

For Package-Variant Applications:

MCP6284-E/SL (Microchip Technology) provides equivalent electrical performance in 14-SOIC packaging. This substitution requires PCB layout modification and is suitable only when SOIC packaging is preferred or required by design constraints.

Compliance Considerations:

All recommended substitutes are ROHS3 compliant, addressing the non-compliance status of the original LMV824MT. All parts maintain REACH unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can LMV824MT/NOPB be used as a direct drop-in replacement for LMV824MT?

A: Yes. LMV824MT/NOPB is electrically and mechanically identical to LMV824MT. The primary differences are active product status and ROHS3 compliance. No circuit modifications are required. Packaging, pinout, and performance specifications are preserved.

Q: What is the key difference between general-purpose and CMOS amplifier types in this comparison?

A: General-purpose amplifiers (bipolar technology) offer higher bandwidth and slew rate but consume more supply current. CMOS amplifiers offer extremely low input bias current and reduced power consumption but sacrifice bandwidth and slew rate. Selection depends on application requirements for speed versus power efficiency.

Q: Can AD8619WARUZ-R7 replace LMV824MT in all applications?

A: No. While AD8619WARUZ-R7 maintains 14-TSSOP packaging and rail-to-rail output, it is a CMOS amplifier with significantly reduced bandwidth (400 kHz vs. 5.6 MHz) and slew rate (0.1 V/µs vs. 2.0 V/µs). This part is suitable only for applications where lower bandwidth is acceptable. Verify circuit performance before substitution.

Q: What does the minimum supply voltage difference (2.5 V vs. 2.7 V) mean for LMV824DTBR2G?

A: LMV824DTBR2G requires a minimum supply voltage of 2.7 V instead of 2.5 V. Designs operating at exactly 2.5 V supply voltage cannot use this part. Verify your circuit's minimum supply voltage before selecting this substitute.

Q: Why does MCP6284-E/SL use 14-SOIC packaging instead of 14-TSSOP?

A: MCP6284-E/SL is available only in 14-SOIC (0.154", 3.90mm width) packaging, not 14-TSSOP. This requires PCB layout redesign and is not a direct replacement. Use this part only when SOIC packaging is acceptable or preferred.

Q: Is LMV824AIPT suitable for non-automotive applications?

A: Yes. LMV824AIPT is automotive-qualified but can be used in non-automotive designs. The AEC-Q100 qualification provides additional reliability assurance. The extended temperature range (-40°C to 125°C) is beneficial for industrial and commercial applications requiring enhanced temperature performance.

Q: What is the significance of input bias current differences across substitute parts?

A: Input bias current affects circuit accuracy in high-impedance applications. LMV824MT specifies 40 nA. Substitutes range from 0.0002 nA (AD8619 CMOS) to 119 nA (LMV824DTBR2G). For precision instrumentation, lower input bias current is preferred. For general-purpose applications, differences are typically negligible.

Q: Can multiple substitute parts be used interchangeably in the same design?

A: No. Each substitute part has different electrical characteristics. Once a specific substitute is selected and validated, use only that part number in production. Mixing different substitute parts in the same design introduces performance variability and complicates quality control.

Q: What compliance certifications should I verify before selecting a substitute?

A: Verify ROHS3 compliance status (all recommended substitutes are compliant), REACH status (all are unaffected), and any application-specific certifications such as AEC-Q100 for automotive use. Confirm moisture sensitivity level (MSL) compatibility with your assembly process.

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