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LMV824IDG4 Equivalent & Substitute Parts
Part Overview
The LMV824IDG4 is a general-purpose operational amplifier manufactured by Texas Instruments, configured as a 4-circuit rail-to-rail amplifier in a 14-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute parts for ongoing design support and procurement.
The LMV824IDG4 operates across a supply voltage range of 2.5 V to 5.5 V with an operating temperature range of -40°C to 125°C. Its primary applications include low-power signal conditioning, general-purpose amplification, and rail-to-rail output configurations in battery-powered and portable equipment.
Due to its obsolete status, equivalent parts with active product status are required for new designs and production continuity. Substitute parts must maintain electrical compatibility within the specified parameter tolerances and mechanical compatibility with the 14-SOIC package footprint.
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 125 | °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 LMV824IDG4 are classified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:
Primary Compatibility Criteria:
- Number of Circuits: Must equal 4
- Output Type: Must be Rail-to-Rail
- Package / Case: Must be 14-SOIC (0.154", 3.90mm Width)
- Mounting Type: Must be Surface Mount
- Voltage - Supply Span: Minimum 2.5 V, Maximum 5.5 V
Secondary Performance Parameters:
- Slew Rate: 1.9 V/µs or greater
- Gain Bandwidth Product: 5.5 MHz or greater
- Current - Input Bias: 40 nA to 119 nA (within acceptable range)
- Voltage - Input Offset: 0.8 mV to 3.5 mV (within acceptable range)
- Current - Output / Channel: 12 mA or greater
- Operating Temperature: Must support -40°C to 125°C or -40°C to 85°C minimum
Compliance Requirements:
- RoHS3 Compliant
- REACH Unaffected status
Substitute parts are grouped into two categories:
Category A - Direct Electrical Equivalents (General Purpose Amplifiers): Parts maintaining identical or superior electrical performance with active product status. These include LMV824M/NOPB, LMV824MX/NOPB, LMV824AIDT, LMV824DR2G, LMV824IDT, MCP6284-E/SL, MCP6284T-E/SL, and MCP6484-E/SL.
Category B - Functional Alternatives (CMOS Amplifiers): Parts with different amplifier topology (CMOS vs. General Purpose) but compatible package and pin configuration. These include MCP619-I/SL and MCP619T-I/SL. These parts have significantly lower slew rate and gain bandwidth product and are suitable only for low-frequency applications.
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (mA) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| LMV824IDG4 | Texas Instruments | Obsolete | 1.9 | 5.5 | 40 | 1 | 1 | 45 | -40 to 125 | 14-SOIC |
| LMV824M/NOPB | Texas Instruments | Active | 2 | 5.6 | 40 | 1 | 1 | 45 | -40 to 85 | 14-SOIC |
| LMV824MX/NOPB | National Semiconductor | Active | 2 | 5.6 | 40 | 1 | 1 | 45 | -40 to 85 | 14-SOIC |
| LMV824AIDT | STMicroelectronics | Active | 1.9 | 5.5 | 60 | 0.8 | 0.3 | 70 | -40 to 125 | 14-SOIC |
| LMV824DR2G | onsemi | Active | 2 | 5.6 | 119 | 1 | 1 | 45 | -40 to 85 | 14-SOIC |
| LMV824IDT | STMicroelectronics | Active | 1.9 | 5.5 | 60 | 3.5 | 0.3 | 70 | -40 to 125 | 14-SOIC |
| MCP6284-E/SL | Microchip Technology | Active | 2.5 | 5 | 0.001 | 3 | 0.45 | 25 | -40 to 125 | 14-SOIC |
| MCP6284T-E/SL | Microchip Technology | Active | 2.5 | 5 | 0.001 | 3 | 0.45 | 25 | -40 to 125 | 14-SOIC |
| MCP6484-E/SL | Microchip Technology | Active | 2.7 | 4 | 0.001 | 1.5 | 0.24 | 12 | -40 to 125 | 14-SOIC |
| MCP619-I/SL | Microchip Technology | Active | 0.08 | 0.19 | 0.005 | 0.15 | 0.019 | 17 | -40 to 85 | 14-SOIC |
| MCP619T-I/SL | Microchip Technology | Active | 0.08 | 0.19 | 0.005 | 0.15 | 0.019 | -40 to 85 | 14-SOIC |
Engineering Selection Recommendations
For Direct Replacement (Recommended Primary Substitutes):
LMV824M/NOPB (Texas Instruments, Active) is the manufacturer-recommended direct substitute. It maintains identical electrical specifications with marginally improved slew rate (2 V/µs vs. 1.9 V/µs) and gain bandwidth product (5.6 MHz vs. 5.5 MHz). Operating temperature range is reduced to -40°C to 85°C. This part is suitable for applications not requiring the full -40°C to 125°C range.
LMV824AIDT (STMicroelectronics, Active) provides full -40°C to 125°C temperature coverage matching the original part. It maintains identical slew rate and gain bandwidth product. Input bias current is slightly elevated (60 nA vs. 40 nA), and input offset voltage is improved (0.8 mV vs. 1 mV). Supply current is reduced to 300 µA per channel, and output current is increased to 70 mA per channel. This part carries AEC-Q100 automotive qualification.
LMV824IDT (STMicroelectronics, Active) is electrically equivalent to LMV824AIDT with identical performance parameters and full temperature range support. Input offset voltage specification is 3.5 mV, which remains within acceptable tolerance. This part also carries AEC-Q100 automotive qualification.
For Low-Power Applications:
MCP6284-E/SL and MCP6284T-E/SL (Microchip Technology, Active) offer superior slew rate (2.5 V/µs) and extremely low input bias current (1 pA). Supply current is reduced to 450 µA per channel. These parts support full -40°C to 125°C temperature range. Output current is reduced to 25 mA per channel, which may limit drive capability in high-impedance load applications.
MCP6484-E/SL (Microchip Technology, Active) provides the lowest supply current (240 µA per channel) with superior slew rate (2.7 V/µs). Input bias current is 1 pA. Output current is limited to 12 mA per channel. This part is suitable for ultra-low-power battery-operated applications with moderate output drive requirements.
For Automotive Applications:
LMV824MX/NOPB (National Semiconductor, Active) carries AEC-Q100 automotive qualification with 25,400 units in stock. Electrical specifications match LMV824M/NOPB with operating temperature range of -40°C to 85°C.
Not Recommended for Direct Replacement:
MCP619-I/SL and MCP619T-I/SL (Microchip Technology, CMOS topology) have significantly reduced slew rate (0.08 V/µs) and gain bandwidth product (190 kHz). These parts are suitable only for DC and very low-frequency applications and are not recommended as general-purpose substitutes for the LMV824IDG4.
Frequently Asked Questions (FAQ)
Q: Can LMV824M/NOPB be used as a direct replacement for LMV824IDG4 in all applications?
A: LMV824M/NOPB is electrically compatible for most applications. The primary difference is the reduced operating temperature range (-40°C to 85°C vs. -40°C to 125°C). If your application requires operation above 85°C, use LMV824AIDT or LMV824IDT instead.
Q: What is the difference between LMV824AIDT and LMV824IDT?
A: Both parts are manufactured by STMicroelectronics with identical electrical performance and full -40°C to 125°C temperature range. The primary difference is input offset voltage specification: LMV824AIDT specifies 0.8 mV while LMV824IDT specifies 3.5 mV. Both values are within acceptable tolerance for general-purpose applications. Select based on offset voltage requirements for precision applications.
Q: Are MCP6284 and MCP6484 suitable replacements for the LMV824IDG4?
A: MCP6284 and MCP6484 are electrically compatible in terms of package, pin configuration, and rail-to-rail output. However, output current capability is reduced (25 mA and 12 mA respectively vs. 45 mA). These parts are suitable only if your application does not require the full 45 mA output current per channel. Both support full -40°C to 125°C temperature range.
Q: Why is MCP619 listed as a substitute if it has much lower performance?
A: MCP619 is listed as a functional alternative for applications requiring extremely low supply current (19 µA per channel) and low input bias current (5 nA). It is not suitable for general-purpose amplification due to severely limited slew rate and bandwidth. Use MCP619 only for DC and very low-frequency signal conditioning applications.
Q: What packaging options are available for substitute parts?
A: Substitute parts are available in multiple packaging formats: Tube, Cut Tape (CT) & Digi-Reel®, and Tape & Reel (TR). All parts maintain the same 14-SOIC footprint. Select packaging based on procurement volume and assembly requirements. Moisture Sensitivity Level (MSL) is 1 (Unlimited) for most parts, except LMV824DR2G which is MSL 3 (168 Hours).
Q: Are all substitute parts RoHS3 compliant?
A: Yes, all listed substitute parts are RoHS3 compliant and REACH unaffected, matching the compliance status of the original LMV824IDG4.
Q: Which substitute part has the best inventory availability?
A: MCP6284-E/SL has the highest inventory with 35,635 units in stock. LMV824MX/NOPB has 25,400 units. LMV824IDT has 20,755 units. Verify current inventory status with your supplier before finalizing procurement decisions.
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