LMV824IPWG4 Equivalent & Substitute Parts

Part Overview

The LMV824IPWG4 is a general purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit rail-to-rail amplifier in a 14-TSSOP surface mount package. This device is classified as Obsolete product status. Due to its obsolescence and limited availability (820 pcs in stock), identifying equivalent and substitute parts is necessary to ensure design continuity and supply chain reliability for new production runs and long-term projects.

The LMV824IPWG4 serves applications requiring low-power, general-purpose amplification with rail-to-rail output capability across supply voltages from 2.5V to 5.5V and operating temperatures from -40°C to 125°C.

Key Parameters

Parameter	Value	Unit
Amplifier Type	General Purpose	—
Number of Circuits	4	—
Output Type	Rail-to-Rail	—
Slew Rate	1.9	V/µs
Gain Bandwidth Product	5.5	MHz
Current - Input Bias	40	nA
Voltage - Input Offset	1	mV
Current - Supply	1	mA
Current - Output / Channel	45	mA
Voltage - Supply Span (Min)	2.5	V
Voltage - Supply Span (Max)	5.5	V
Operating Temperature	-40 to 125	°C
Package / Case	14-TSSOP (0.173", 4.40mm Width)	—
Mounting Type	Surface Mount	—
RoHS Status	ROHS3 Compliant	—
Moisture Sensitivity Level (MSL)	1 (Unlimited)	—

Substitute Part Grouping Explanation

Substitute parts for the LMV824IPWG4 are grouped based on strict electrical and mechanical compatibility criteria:

Primary Substitution Criteria:

Package type: 14-TSSOP surface mount (identical footprint and pinout)
Number of circuits: 4 amplifiers per package
Output configuration: Rail-to-rail output
Operating temperature range: -40°C to 125°C minimum
Supply voltage span: Minimum 2.5V to maximum 5.5V overlap
RoHS3 compliance and MSL rating

Substitute Categories:

Category 1: Direct LMV824 Series Variants (Highest Compatibility) Parts sharing the same base product number (LMV824) with identical electrical specifications and general purpose amplifier topology. These include LMV824AIPT, LMV824DTBR2G, and LMV824IPT. These variants differ only in packaging format (Tape & Reel vs. Cut Tape) and minor manufacturing qualifications.

Category 2: General Purpose Amplifiers with Comparable Performance (MCP6284 Series) The MCP6284T-E/ST and MCP6284-E/ST offer general purpose amplification with similar gain-bandwidth product (5 MHz vs. 5.5 MHz) and slew rate (2.5V/µs vs. 1.9V/µs). Supply voltage range (2.2V to 5.5V) provides broader low-voltage capability. Input bias current specification (1 pA) is superior to the LMV824IPWG4 (40 nA).

Category 3: Low-Power CMOS Amplifiers (AD8604 and AD8619 Series) These CMOS-based alternatives provide ultra-low input bias current (0.2 pA for AD8604ARUZ-REEL; 0.2 pA for AD8619 variants) and reduced supply current. The AD8604ARUZ-REEL offers higher slew rate (6V/µs) and gain-bandwidth product (8.4 MHz). The AD8619 variants (AD8619WARUZ-R7, AD8619WARUZ-RL) feature extremely low supply current (38µA) but reduced bandwidth (400 kHz) and slew rate (0.1V/µs).

Category 4: Ultra-Low-Power CMOS Amplifiers (MCP619 Series) The MCP619-I/ST and MCP619T-I/ST provide minimal supply current (19µA per 4 channels) with ultra-low input bias current (5 nA). These are suitable for battery-powered applications but feature reduced bandwidth (190 kHz) and slew rate (0.08V/µs).

Parameter Comparison

Part Number	Manufacturer	Amplifier Type	Slew Rate (V/µs)	GBW (MHz)	Input Bias (nA/pA)	Input Offset (mV/µV)	Supply Current (mA/µA)	Output Current (mA)	Vcc Min (V)	Vcc Max (V)	Temp Range (°C)	Status
LMV824IPWG4	Texas Instruments	General Purpose	1.9	5.5	40 nA	1 mV	1 mA	45	2.5	5.5	-40 to 125	Obsolete
LMV824AIPT	STMicroelectronics	General Purpose	1.9	5.5	60 nA	0.8 mV	0.3 mA	70	2.5	5.5	-40 to 125	Active
LMV824DTBR2G	onsemi	General Purpose	2.0	5.6	119 nA	1 mV	1 mA	45	2.7	5.5	-40 to 85	Active
LMV824IPT	STMicroelectronics	General Purpose	1.9	5.5	60 nA	3.5 mV	0.3 mA	70	2.5	5.5	-40 to 125	Active
MCP6284T-E/ST	Microchip Technology	General Purpose	2.5	5.0	1 pA	3 mV	0.45 mA	25	2.2	5.5	-40 to 125	Active
MCP6284-E/ST	Microchip Technology	General Purpose	2.5	5.0	1 pA	3 mV	0.45 mA	25	2.2	5.5	-40 to 125	Active
AD8604ARUZ-REEL	Analog Devices Inc.	CMOS	6.0	8.4	0.2 pA	80 µV	0.75 mA	50	2.7	5.5	-40 to 125	Active
AD8619WARUZ-R7	Analog Devices Inc.	CMOS	0.1	0.4	0.2 pA	400 µV	0.038 mA	80	1.8	5.0	-40 to 125	Active
AD8619WARUZ-RL	Analog Devices Inc.	CMOS	0.1	0.4	0.2 pA	400 µV	0.038 mA	80	1.8	5.0	-40 to 125	Active
MCP619-I/ST	Microchip Technology	CMOS	0.08	0.19	5 nA	150 µV	0.019 mA	17	2.3	5.5	-40 to 85	Active
MCP619T-I/ST	Microchip Technology	CMOS	0.08	0.19	5 nA	150 µV	0.019 mA	17	2.3	5.5	-40 to 85	Active

Engineering Selection Recommendations

For Direct Replacement (Highest Compatibility):

Select LMV824AIPT or LMV824IPT (STMicroelectronics) as primary substitutes. Both are active products with identical electrical specifications to the LMV824IPWG4, including slew rate (1.9V/µs), gain-bandwidth product (5.5 MHz), and supply voltage range (2.5V to 5.5V). Both maintain full operating temperature range (-40°C to 125°C) and RoHS3 compliance. The LMV824AIPT carries AEC-Q100 automotive qualification, providing additional reliability assurance. Inventory availability is strong (1,119 pcs for LMV824AIPT; 1,139 pcs for LMV824IPT).

LMV824DTBR2G (onsemi) is an alternative LMV824 variant with marginally improved specifications (slew rate 2.0V/µs, GBW 5.6 MHz) but operates only to 85°C maximum temperature. This part is suitable only for applications not requiring the full -40°C to 125°C range. Inventory is abundant (3,138 pcs).

For General Purpose Applications with Enhanced Performance:

MCP6284T-E/ST or MCP6284-E/ST (Microchip Technology) provide superior slew rate (2.5V/µs) and ultra-low input bias current (1 pA). These parts maintain the full -40°C to 125°C operating range and support the same 14-TSSOP package. Supply voltage minimum is lower (2.2V vs. 2.5V), enabling broader application scope. Output current per channel is reduced (25 mA vs. 45 mA), which may limit driving capability in high-impedance load applications. Inventory is excellent (14,435 pcs for MCP6284-E/ST; 3,720 pcs for MCP6284T-E/ST).

For Ultra-Low Power Applications:

AD8604ARUZ-REEL (Analog Devices Inc.) is selected for applications requiring superior dynamic performance. It provides the highest slew rate (6V/µs) and gain-bandwidth product (8.4 MHz) among all substitutes, with exceptional input bias current (0.2 pA). Supply current is moderate (0.75 mA). Full temperature range (-40°C to 125°C) and RoHS3 compliance are maintained. Inventory is adequate (2,451 pcs).

MCP619-I/ST or MCP619T-I/ST (Microchip Technology) are specified for battery-powered and ultra-low-power applications. These parts deliver minimal supply current (19µA total for 4 channels) with excellent input bias current (5 nA). However, bandwidth (190 kHz) and slew rate (0.08V/µs) are severely limited, restricting use to DC and very low-frequency signal conditioning. Operating temperature maximum is 85°C. These parts are suitable only for applications with relaxed frequency requirements.

For Minimal Supply Voltage Operation:

AD8619WARUZ-R7 and AD8619WARUZ-RL (Analog Devices Inc.) support operation from 1.8V minimum supply voltage, enabling single-cell battery applications. However, bandwidth (400 kHz) and slew rate (0.1V/µs) are significantly reduced. Maximum supply voltage is 5.0V (vs. 5.5V for the LMV824IPWG4). These parts are suitable only for low-frequency applications requiring minimal supply voltage.

Compliance and Certification:

All recommended substitutes maintain RoHS3 compliance and MSL rating 1 (unlimited moisture sensitivity). The LMV824AIPT and LMV824IPT carry AEC-Q100 automotive qualification, suitable for automotive and industrial applications requiring enhanced reliability documentation.

Frequently Asked Questions (FAQ)

Q1: Can I use MCP6284T-E/ST as a direct replacement for LMV824IPWG4 without circuit modifications?

A: The MCP6284T-E/ST is pin-compatible and functionally equivalent in 14-TSSOP package configuration. However, circuit modifications may be required due to differences in output current per channel (25 mA vs. 45 mA). Applications driving low-impedance loads below 1 kΩ may require output buffering. Input offset voltage is higher (3 mV vs. 1 mV), affecting precision analog applications. Verify load impedance and offset voltage tolerance before substitution.

Q2: What is the difference between LMV824AIPT and LMV824IPT?

A: Both parts are manufactured by STMicroelectronics with identical electrical specifications (slew rate 1.9V/µs, GBW 5.5 MHz, supply range 2.5V to 5.5V, temperature -40°C to 125°C). The LMV824AIPT carries AEC-Q100 automotive qualification and is packaged in Tape & Reel format. The LMV824IPT is packaged in Cut Tape & Digi-Reel format without automotive qualification. Select LMV824AIPT for automotive and mission-critical applications; LMV824IPT for general industrial use.

Q3: Why does AD8604ARUZ-REEL have higher slew rate and bandwidth than LMV824IPWG4?

A: AD8604ARUZ-REEL uses CMOS amplifier architecture with different internal compensation, resulting in slew rate of 6V/µs and GBW of 8.4 MHz compared to 1.9V/µs and 5.5 MHz for the LMV824IPWG4. This enhanced performance comes with trade-offs: input offset voltage is lower (80µV vs. 1mV), but supply current is higher (0.75mA vs. 1mA). Select AD8604ARUZ-REEL for high-speed signal conditioning; LMV824 variants for low-power applications.

Q4: Can MCP619-I/ST replace LMV824IPWG4 in audio amplification circuits?

A: No. MCP619-I/ST has severely limited bandwidth (190 kHz) and slew rate (0.08V/µs), insufficient for audio frequency response (20 Hz to 20 kHz requires minimum 100 kHz bandwidth and 0.5V/µs slew rate for typical audio levels). MCP619 is suitable only for DC and very low-frequency sensor signal conditioning. Use LMV824AIPT, LMV824IPT, or MCP6284T-E/ST for audio applications.

Q5: What is the significance of MSL rating 1 (Unlimited) versus MSL 3 (168 Hours)?

A: MSL 1 (Unlimited) indicates the component can be stored indefinitely without moisture absorption concerns, requiring no special desiccant storage or bake-out procedures before reflow soldering. MSL 3 (168 Hours) requires storage in dry conditions and limits floor life to 168 hours after package opening before reflow soldering. For high-volume manufacturing with extended inventory holding, select MSL 1 parts (LMV824IPWG4, LMV824AIPT, LMV824IPT, MCP6284 series, MCP619 series). AD8619 variants have MSL 3, requiring controlled storage procedures.

Q6: Is the 14-TSSOP package footprint identical across all substitute parts?

A: Yes. All substitute parts specified in this document use 14-TSSOP package with identical 0.173" (4.40mm) width and pinout. PCB footprints are directly interchangeable without layout modifications. Verify component height clearance in confined spaces; TSSOP packages typically measure 1.2mm maximum height.

Q7: Which substitute offers the best input offset voltage specification?

A: AD8604ARUZ-REEL provides the lowest input offset voltage at 80µV, followed by MCP619 series at 150µV. The LMV824IPWG4 specifies 1mV input offset. For precision instrumentation and sensor signal conditioning requiring offset voltage below 500µV, select AD8604ARUZ-REEL or MCP619 series. For general-purpose applications, LMV824 variants are adequate.

Q8: Can I substitute LMV824DTBR2G if my application operates only at 25°C ambient?

A: Yes, if your application operates exclusively within 0°C to 85°C range. LMV824DTBR2G is electrically compatible with LMV824IPWG4 but specifies maximum operating temperature of 85°C versus 125°C. For applications with guaranteed ambient temperature below 85°C and no thermal cycling to -40°C, LMV824DTBR2G is acceptable. However, for industrial and automotive applications with potential temperature extremes, use LMV824AIPT or LMV824IPT to maintain full -40°C to 125°C margin.

Q9: What is the practical difference in supply current between LMV824IPWG4 (1mA) and MCP619-I/ST (19µA)?

A: For a single 14-TSSOP package containing 4 amplifiers, LMV824IPWG4 draws 1mA total supply current, while MCP619-I/ST draws 19µA total. In battery-powered applications with 100 devices, this represents 100mA versus 1.9mA difference, extending battery life by approximately 50x. However, MCP619 bandwidth limitation (190 kHz) restricts use to DC and low-frequency applications. For applications requiring both low power and audio/RF frequencies, AD8604ARUZ-REEL (0.75mA) provides compromise performance.

Q10: Are there any pin-compatible single-amplifier alternatives if I need only one amplifier per package?

A: This document specifies only 4-circuit amplifiers in 14-TSSOP packages. Single-amplifier alternatives would require different package types (8-SOIC, 5-SOT23) and are outside the scope of this substitution guide. If single-amplifier configuration is required, consult manufacturer datasheets for alternative package options or use one amplifier from the 4-circuit package with remaining amplifiers unused.

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