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LMV824DRG4 Equivalent & Substitute Parts
Part Overview
The LMV824DRG4 is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. Manufactured by Texas Instruments, this rail-to-rail amplifier is designed for low-voltage applications requiring compact integration. The device is currently classified as obsolete, necessitating identification of active equivalent and substitute parts for ongoing design support and procurement continuity. Substitute parts must maintain functional compatibility across critical electrical parameters including supply voltage range, output type, circuit count, and thermal operating range.
Substiute Parts
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 85 | °C |
| Package / Case | 14-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LMV824DRG4 are classified based on strict adherence to the following critical parameters:
Primary Compatibility Criteria:
- Package type: 14-SOIC surface-mount configuration
- Circuit count: Four independent amplifier circuits
- Output configuration: Rail-to-rail output capability
- Supply voltage range: Minimum 2.5 V to maximum 5.5 V overlap
- Mounting type: Surface mount
Substitution Logic:
Parts are grouped into two categories based on amplifier architecture and performance characteristics:
Category 1: General Purpose Amplifiers (Direct Functional Equivalents) Parts maintaining general-purpose amplifier topology with slew rates between 1.9 V/µs and 2.5 V/µs and gain bandwidth products between 5 MHz and 5.6 MHz. These include LMV824M/NOPB, LMV824MX/NOPB, LMV824DR2G, LMV824AIDT, and LMV824IDT. These parts preserve the core electrical characteristics of the original device.
Category 2: Enhanced Performance Alternatives (CMOS Architecture) Parts utilizing CMOS technology with superior input bias current characteristics (0.2 pA to 5 nA versus 40 nA to 119 nA) and enhanced slew rates (6 V/µs and 0.08 V/µs). These include AD8604ARZ, AD8604ARZ-REEL, MCP619-I/SL, MCP619T-I/SL, and MCP6284-E/SL. These parts offer improved performance metrics while maintaining package and circuit count compatibility.
All substitute parts comply with RoHS3 and maintain REACH unaffected status, ensuring regulatory alignment with the original device.
Parameter Comparison
| Part Number | Manufacturer | Amplifier Type | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (mA) | Output Current (mA) | Temp Range (°C) | Status |
|---|---|---|---|---|---|---|---|---|---|---|
| LMV824DRG4 | Texas Instruments | General Purpose | 1.9 | 5.5 | 40 | 1 | 1 | 45 | -40 to 85 | Obsolete |
| LMV824M/NOPB | Texas Instruments | General Purpose | 2 | 5.6 | 40 | 1 | 1 | 45 | -40 to 85 | Active |
| LMV824MX/NOPB | National Semiconductor | General Purpose | 2 | 5.6 | 40 | 1 | 1 | 45 | -40 to 85 | Active |
| LMV824DR2G | onsemi | General Purpose | 2 | 5.6 | 119 | 1 | 1 | 45 | -40 to 85 | Active |
| LMV824AIDT | STMicroelectronics | General Purpose | 1.9 | 5.5 | 60 | 0.8 | 0.3 | 70 | -40 to 125 | Active |
| LMV824IDT | STMicroelectronics | General Purpose | 1.9 | 5.5 | 60 | 3.5 | 0.3 | 70 | -40 to 125 | Active |
| AD8604ARZ | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.0002 | 0.08 | 0.75 | 50 | -40 to 125 | Active |
| AD8604ARZ-REEL | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.0002 | 0.08 | 0.75 | 50 | -40 to 125 | Active |
| MCP619-I/SL | Microchip Technology | CMOS | 0.08 | 0.19 | 5 | 0.15 | 0.019 | 17 | -40 to 85 | Active |
| MCP619T-I/SL | Microchip Technology | CMOS | 0.08 | 0.19 | 5 | 0.15 | 0.019 | 17 | -40 to 85 | Active |
| MCP6284-E/SL | Microchip Technology | General Purpose | 2.5 | 5 | 0.001 | 3 | 0.45 | 25 | -40 to 125 | Active |
Engineering Selection Recommendations
Primary Recommendation: LMV824M/NOPB
The LMV824M/NOPB from Texas Instruments is the manufacturer-recommended direct substitute for the obsolete LMV824DRG4. This part maintains identical electrical specifications with marginal improvements in slew rate (2 V/µs versus 1.9 V/µs) and gain bandwidth product (5.6 MHz versus 5.5 MHz). The device is active in production with 1360 units in stock. Packaging is supplied in tube format. RoHS3 compliance and MSL 1 rating ensure regulatory and moisture sensitivity alignment with the original part.
Secondary Recommendation: LMV824IDT
The LMV824IDT from STMicroelectronics provides automotive-grade qualification (AEC-Q100) with extended operating temperature range (-40°C to 125°C). This part is suitable for applications requiring enhanced thermal performance and automotive reliability standards. Supply current is reduced to 300 µA per four channels, and output current per channel is increased to 70 mA. The device is active with 20755 units in stock.
Alternative for Enhanced Performance: AD8604ARZ
The AD8604ARZ from Analog Devices Inc. offers superior performance characteristics including 6 V/µs slew rate, 8.4 MHz gain bandwidth product, and exceptionally low input bias current (0.2 pA). This CMOS-based alternative is suitable for applications requiring higher speed and lower power consumption. Operating temperature extends to 125°C. The device is active with 9097 units in stock.
Low-Power Alternative: MCP6284-E/SL
The MCP6284-E/SL from Microchip Technology provides general-purpose amplification with extended temperature range (-40°C to 125°C) and ultra-low input bias current (1 pA). Supply voltage range extends to 2.2 V minimum. This part is suitable for battery-powered and low-power applications. The device is active with 35635 units in stock.
All recommended substitutes maintain 14-SOIC surface-mount packaging, four-circuit configuration, and rail-to-rail output capability. Selection should be based on specific application requirements regarding temperature range, power consumption, and performance metrics.
Frequently Asked Questions (FAQ)
Q1: Can LMV824M/NOPB directly replace LMV824DRG4 without circuit modification?
A: Yes. The LMV824M/NOPB maintains identical electrical specifications and 14-SOIC package configuration. Marginal improvements in slew rate and gain bandwidth product do not require circuit redesign. Pin configuration and functional behavior are equivalent.
Q2: What is the primary difference between general-purpose and CMOS amplifier substitutes?
A: General-purpose amplifiers (LMV824 series) utilize bipolar or BiCMOS architecture with input bias currents in the 40-119 nA range. CMOS amplifiers (AD8604, MCP619, MCP6284) feature input bias currents below 5 pA, reducing input loading effects. CMOS variants typically offer lower power consumption and higher input impedance at the cost of potentially higher input offset voltage.
Q3: Which substitute is recommended for automotive applications?
A: LMV824AIDT and LMV824IDT from STMicroelectronics carry AEC-Q100 automotive qualification. These parts are suitable for automotive-grade designs requiring enhanced reliability and extended temperature operation (-40°C to 125°C).
Q4: Are there packaging format differences among substitutes?
A: Yes. Substitutes are available in multiple packaging formats: Tube (LMV824M/NOPB, MCP619-I/SL, MCP6284-E/SL), Cut Tape & Digi-Reel (LMV824AIDT, LMV824IDT, MCP619T-I/SL, AD8604ARZ-REEL), and Tape & Reel (LMV824DR2G). All maintain identical 14-SOIC case dimensions. Selection should align with procurement and assembly requirements.
Q5: What is the significance of MSL (Moisture Sensitivity Level) rating?
A: MSL 1 (unlimited shelf life) indicates the component can be stored indefinitely without moisture baking requirements. MSL 3 (168 hours) requires moisture baking before reflow soldering if shelf life exceeds 168 hours. LMV824DRG4 carries MSL 1; most substitutes maintain this rating except LMV824DR2G (MSL 3).
Q6: Can MCP619-I/SL substitute for LMV824DRG4 in high-frequency applications?
A: No. MCP619-I/SL features significantly reduced bandwidth (190 kHz versus 5.5 MHz) and slew rate (0.08 V/µs versus 1.9 V/µs). This part is suitable only for low-frequency, ultra-low-power applications. High-frequency applications require general-purpose or enhanced CMOS alternatives.
Q7: What supply voltage range compatibility should be verified?
A: LMV824DRG4 operates from 2.5 V to 5.5 V. Most substitutes maintain this range. MCP6284-E/SL extends minimum supply to 2.2 V. MCP619 series minimum is 2.3 V. Verify application supply voltage falls within the selected substitute's specified range.
Q8: Are all substitutes RoHS3 compliant?
A: Yes. All listed substitutes carry RoHS3 compliance certification and REACH unaffected status, ensuring regulatory alignment with the original LMV824DRG4 device.
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