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LMV824D Equivalent & Substitute Parts
Part Overview
The LMV824D is a general-purpose operational amplifier featuring four independent circuits in a 14-SOIC surface-mount package. Manufactured by Texas Instruments, this device delivers rail-to-rail output capability with a gain-bandwidth product of 5.5 MHz and operates across a 2.5 V to 5.5 V supply range. The LMV824D is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support, production continuity, and system maintenance. Substitute parts must maintain functional compatibility across critical electrical parameters including supply voltage range, output type, circuit count, and package form factor.
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 LMV824D are classified into two functional categories based on electrical and mechanical compatibility:
Category 1: Direct General-Purpose Substitutes These parts maintain the same amplifier type (general purpose), circuit count (4), output type (rail-to-rail), and 14-SOIC package. Electrical parameters including slew rate, gain-bandwidth product, supply voltage range, and operating temperature must fall within acceptable tolerance bands. Parts in this category include LMV824M/NOPB, LMV824MX/NOPB, LMV824AIDT, LMV824DR2G, LMV824IDT, and MCP6284-E/SL.
Category 2: Alternative Technology Substitutes These parts employ different amplifier technologies (CMOS instead of general purpose) while maintaining the four-circuit configuration, rail-to-rail output, and 14-SOIC package. Performance characteristics differ significantly in slew rate, gain-bandwidth product, input bias current, and supply current. Parts in this category include AD8604ARZ-REEL7, MCP619-I/SL, and MCP619T-I/SL.
Critical Substitution Parameters:
- Number of Circuits: 4 (mandatory)
- Output Type: Rail-to-Rail (mandatory)
- Package: 14-SOIC (mandatory)
- Supply Voltage Range: Minimum 2.5 V, Maximum 5.5 V (mandatory)
- Mounting Type: Surface Mount (mandatory)
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LMV824D | 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 |
| AD8604ARZ-REEL7 | Analog Devices Inc. | CMOS | 6 | 8.4 | 0.0002 | 0.08 | 0.75 | 50 | -40 to 125 | Active |
| LMV824AIDT | STMicroelectronics | General Purpose | 1.9 | 5.5 | 60 | 0.8 | 0.3 | 70 | -40 to 125 | Active |
| LMV824DR2G | onsemi | General Purpose | 2 | 5.6 | 119 | 1 | 1 | 45 | -40 to 85 | Active |
| LMV824IDT | STMicroelectronics | General Purpose | 1.9 | 5.5 | 60 | 3.5 | 0.3 | 70 | -40 to 125 | Active |
| MCP619-I/SL | Microchip Technology | CMOS | 0.08 | 0.19 | 0.005 | 0.15 | 0.019 | 17 | -40 to 85 | Active |
| MCP619T-I/SL | Microchip Technology | CMOS | 0.08 | 0.19 | 0.005 | 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 |
| MCP6284T-E/SL | Microchip Technology | General Purpose | 2.5 | 5 | 0.001 | 3 | 0.45 | 25 | -40 to 125 | Active |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
LMV824M/NOPB and LMV824MX/NOPB are the preferred direct substitutes for LMV824D. Both maintain 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). Both are active products with ROHS3 compliance and unlimited moisture sensitivity rating. LMV824M/NOPB is packaged in tube format, while LMV824MX/NOPB is available in standard packaging. Both support the full -40°C to 85°C operating temperature range of the original device.
Secondary Substitutes (Automotive-Grade Options):
LMV824AIDT and LMV824IDT, both manufactured by STMicroelectronics, are automotive-qualified alternatives carrying AEC-Q100 certification. These parts extend the operating temperature range to -40°C to 125°C and feature enhanced output current capability (70 mA per channel versus 45 mA). Supply current is reduced to 300 µA across four channels. Input bias current is slightly elevated (60 nA versus 40 nA), and input offset voltage varies (0.8 mV for LMV824AIDT, 3.5 mV for LMV824IDT). These substitutes are suitable for applications requiring automotive qualification or extended temperature operation.
Alternative Technology Substitute (Performance Enhancement):
AD8604ARZ-REEL7 from Analog Devices represents a CMOS-based alternative offering superior performance metrics: slew rate of 6 V/µs, gain-bandwidth product of 8.4 MHz, and extended temperature range to 125°C. Input bias current is negligible (0.2 pA), and input offset voltage is 80 µV. However, supply current is reduced to 750 µA, and output current per channel is 50 mA. This substitute is appropriate for applications where higher bandwidth and lower input bias current are beneficial and where the reduced output current is acceptable.
Low-Power Alternative (Power-Constrained Applications):
MCP619-I/SL and MCP619T-I/SL from Microchip Technology are ultra-low-power CMOS alternatives consuming only 19 µA across four channels. These parts are suitable for battery-powered or power-constrained applications. However, slew rate is significantly reduced (0.08 V/µs), gain-bandwidth product is 190 kHz, and output current per channel is limited to 17 mA. These substitutes are not suitable for high-speed or high-current applications.
General-Purpose Alternative (Extended Temperature):
MCP6284-E/SL and MCP6284T-E/SL from Microchip Technology provide general-purpose amplification with extended temperature range (-40°C to 125°C). Slew rate is 2.5 V/µs, gain-bandwidth product is 5 MHz, and input bias current is extremely low (1 pA). Supply current is 450 µA across four channels, and output current per channel is 25 mA. These substitutes are appropriate for applications requiring extended temperature operation and low input bias current.
Product Status Consideration:
All recommended substitutes are active products with current manufacturing support. The original LMV824D is obsolete; therefore, any new design or production continuation must transition to an active substitute part.
Frequently Asked Questions (FAQ)
Q1: Can LMV824M/NOPB directly replace LMV824D without circuit modification?
A: Yes. LMV824M/NOPB maintains identical electrical specifications, supply voltage range (2.5 V to 5.5 V), operating temperature range (-40°C to 85°C), and 14-SOIC package. The marginal improvements in slew rate and gain-bandwidth product are forward-compatible. No circuit modification is required.
Q2: What is the key difference between LMV824AIDT and LMV824IDT?
A: Both are STMicroelectronics automotive-qualified alternatives with AEC-Q100 certification and extended temperature range. The primary difference is input offset voltage: LMV824AIDT specifies 0.8 mV, while LMV824IDT specifies 3.5 mV. Both are suitable for automotive applications; selection depends on offset voltage tolerance requirements.
Q3: Why would AD8604ARZ-REEL7 be selected over LMV824M/NOPB?
A: AD8604ARZ-REEL7 offers superior performance in applications requiring higher bandwidth (8.4 MHz gain-bandwidth product versus 5.6 MHz), faster slew rate (6 V/µs versus 2 V/µs), and extremely low input bias current (0.2 pA versus 40 nA). Extended temperature range to 125°C is also available. Trade-offs include reduced output current per channel (50 mA versus 45 mA) and higher supply current (750 µA versus 1 mA).
Q4: Are MCP619-I/SL and MCP619T-I/SL suitable for audio or signal-conditioning applications?
A: No. These ultra-low-power CMOS alternatives have severely limited bandwidth (190 kHz gain-bandwidth product) and slew rate (0.08 V/µs), making them unsuitable for audio or high-speed signal conditioning. They are designed for DC measurement, sensor interface, and other low-frequency applications where power consumption is the primary constraint.
Q5: What packaging options are available for LMV824 substitutes?
A: All substitutes are available in 14-SOIC surface-mount package. Packaging variants include tube (LMV824M/NOPB), cut tape with digi-reel (AD8604ARZ-REEL7, LMV824AIDT, LMV824IDT, MCP619T-I/SL, MCP6284T-E/SL), and tape & reel (LMV824DR2G). Selection depends on procurement and assembly requirements.
Q6: Are all substitutes RoHS3 compliant?
A: Yes. All recommended substitutes carry ROHS3 compliance certification. Moisture sensitivity level is 1 (unlimited) for most parts, with the exception of LMV824DR2G, which specifies MSL 3 (168 hours).
Q7: Which substitute is recommended for new automotive designs?
A: LMV824AIDT or LMV824IDT from STMicroelectronics are recommended for automotive applications. Both carry AEC-Q100 qualification and extended temperature range (-40°C to 125°C). LMV824MX/NOPB from National Semiconductor also carries automotive grade designation and AEC-Q100 qualification.
Q8: Can MCP6284-E/SL be used in applications currently using LMV824D?
A: Yes, with design verification. MCP6284-E/SL maintains general-purpose amplifier type, four-circuit configuration, rail-to-rail output, and 14-SOIC package. Extended temperature range (-40°C to 125°C) is beneficial. However, output current per channel is reduced (25 mA versus 45 mA), and supply current is higher (450 µA versus 1 mA). Circuit design must accommodate these differences.
Q9: What is the moisture sensitivity implication for LMV824DR2G?
A: LMV824DR2G specifies MSL 3 (168 hours), compared to MSL 1 (unlimited) for most other substitutes. This indicates the component must be used within 168 hours of bag opening under controlled humidity conditions. Standard moisture-control procedures during assembly are required. This is a minor consideration for most manufacturing environments but should be verified against assembly process capabilities.
Q10: Are there supply voltage compatibility issues between LMV824D and its substitutes?
A: No. All substitutes maintain the minimum supply voltage of 2.5 V and maximum of 5.5 V, matching the original LMV824D specification. LMV824DR2G specifies a slightly higher minimum (2.7 V), which is compatible with standard 3.3 V and 5 V supply rails. No supply voltage modification is required.
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