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LMV821DBVR Equivalent & Substitute Parts
Part Overview
The LMV821DBVR is a general-purpose operational amplifier manufactured by Texas Instruments, housed in a SOT-23-5 surface mount package. This device features rail-to-rail output capability and is designed for low-voltage, low-power applications. The LMV821DBVR is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and ongoing production requirements. Substitute parts are selected based on matching electrical performance parameters, package compatibility, and compliance certifications.
Substiute Parts
Key Parameters
| Parameter | LMV821DBVR | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 1 | — |
| 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 | 300 | µA |
| 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 | SC-74A, SOT-753 | — |
| Supplier Device Package | SOT-23-5 | — |
| Product Status | Obsolete | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitute parts for the LMV821DBVR are grouped into two categories based on package type and electrical performance alignment:
Category 1: SOT-23-5 Package Substitutes (Direct Package Compatibility)
These parts maintain the SOT-23-5 package footprint and are suitable for direct board-level replacement:
- LMV821M5/NOPB
- LMV821M5X/NOPB
- LMV821AILT
- LMV821ILT
Category 2: SC-70-5 Package Substitutes (Alternative Package)
These parts feature the SC-70-5 package and require PCB layout modification:
- LMV821M7/NOPB
- LMV821M7X/NOPB
Category 3: Enhanced Performance Substitutes (LMV721 Series)
These parts offer improved electrical performance with higher gain bandwidth product and slew rate:
- LMV721M5/NOPB
- LMV721M5X/NOPB
- LMV721M7/NOPB
- LMV721M7X/NOPB
Substitution eligibility is determined by the following key parameters: output type (rail-to-rail), supply voltage range (2.5 V to 5.5 V minimum), operating temperature range (-40°C to 85°C minimum), and package compatibility (SOT-23-5 or SC-70-5).
Parameter Comparison
| Part Number | Manufacturer | Product Status | Slew Rate (V/µs) | GBW (MHz) | Input Bias (nA) | Input Offset (mV) | Supply Current (µA) | Output Current (mA) | Temp Range (°C) | Package |
|---|---|---|---|---|---|---|---|---|---|---|
| LMV821DBVR | Texas Instruments | Obsolete | 1.9 | 5.5 | 40 | 1 | 300 | 45 | -40 to 85 | SOT-23-5 |
| LMV821M5/NOPB | National Semiconductor | Active | 2 | 5.6 | 100 | 3.5 | 300 | 45 | -40 to 85 | SOT-23-5 |
| LMV821M5X/NOPB | National Semiconductor | Active | 2 | 5.6 | 100 | 3.5 | 300 | — | -40 to 85 | SOT-23-5 |
| LMV821M7/NOPB | Texas Instruments | Active | 2 | 5.6 | 100 | 3.5 | 300 | 45 | -40 to 85 | SC-70-5 |
| LMV821M7X/NOPB | National Semiconductor | Active | 2 | 5.6 | 100 | 3.5 | 300 | — | -40 to 85 | SC-70-5 |
| LMV821AILT | STMicroelectronics | Active | 1.9 | 5.5 | 60 | 0.8 | 300 | 70 | -40 to 125 | SOT-23-5 |
| LMV821ILT | STMicroelectronics | Active | 1.9 | 5.5 | 60 | 3.5 | 300 | 70 | -40 to 125 | SOT-23-5 |
| LMV721M5/NOPB | Texas Instruments | Active | 5.25 | 10 | 260 | 0.08 | 1030 | — | -40 to 85 | SOT-23-5 |
| LMV721M5X/NOPB | Texas Instruments | Active | 5.25 | 10 | 260 | 0.08 | 1030 | — | -40 to 85 | SOT-23-5 |
| LMV721M7/NOPB | National Semiconductor | Active | 5.25 | 10 | 260 | 0.08 | 1030 | — | -40 to 85 | SC-70-5 |
| LMV721M7X/NOPB | Texas Instruments | Active | 5.25 | 10 | 260 | 0.08 | 1030 | — | -40 to 85 | SC-70-5 |
Engineering Selection Recommendations
For Direct Replacement (SOT-23-5 Package, Identical Electrical Performance)
LMV821AILT and LMV821ILT are recommended as primary substitutes. Both are manufactured by STMicroelectronics and maintain the SOT-23-5 package footprint. These devices preserve the slew rate (1.9 V/µs) and gain bandwidth product (5.5 MHz) of the original LMV821DBVR. Both parts are ROHS3 compliant and carry MSL 1 (Unlimited) moisture sensitivity rating. LMV821AILT offers extended operating temperature range (-40°C to 125°C) and improved output current capability (70 mA versus 45 mA), providing enhanced thermal and current performance margins.
For SOT-23-5 Package with Equivalent Performance
LMV821M5/NOPB and LMV821M5X/NOPB are active alternatives from National Semiconductor. These parts maintain SOT-23-5 package compatibility and supply current specification (300 µA). Electrical performance is equivalent within acceptable tolerances, with slew rate of 2 V/µs and gain bandwidth product of 5.6 MHz. Both parts are ROHS3 compliant with MSL 1 rating.
For SC-70-5 Package Substitutes
LMV821M7/NOPB and LMV821M7X/NOPB provide equivalent electrical performance in the SC-70-5 package. These parts require PCB layout modification due to different package footprint. Both maintain the 300 µA supply current and are ROHS3 compliant with MSL 1 rating.
For Enhanced Performance Applications
LMV721M5/NOPB, LMV721M5X/NOPB, LMV721M7/NOPB, and LMV721M7X/NOPB offer improved electrical specifications with 5.25 V/µs slew rate and 10 MHz gain bandwidth product. These parts are suitable for applications requiring higher bandwidth and faster transient response. All are active products with ROHS3 compliance and MSL 1 rating. Supply current increases to 1.03 mA, which must be evaluated against application power budget constraints.
All recommended substitutes maintain rail-to-rail output capability, supply voltage range compatibility (2.5 V to 5.5 V), and operating temperature range of -40°C to 85°C minimum. All parts carry ROHS3 compliance and REACH Unaffected status.
Frequently Asked Questions (FAQ)
Q: Can LMV821DBVR be replaced with LMV821AILT in existing designs?
A: Yes. LMV821AILT maintains identical package (SOT-23-5), slew rate (1.9 V/µs), and gain bandwidth product (5.5 MHz). The part is pin-compatible and requires no circuit modification. LMV821AILT offers extended temperature range (-40°C to 125°C) and higher output current (70 mA), making it a direct functional upgrade.
Q: What is the difference between LMV821M5X/NOPB and LMV821M5/NOPB?
A: Both parts are electrically identical with equivalent specifications. The primary difference is packaging format: M5X/NOPB is supplied in Cut Tape and Digi-Reel format, while M5/NOPB packaging format is not specified in the provided data. Both maintain SOT-23-5 package compatibility and are suitable for direct substitution.
Q: Can SC-70-5 package parts (LMV821M7/NOPB) replace SOT-23-5 parts (LMV821DBVR)?
A: SC-70-5 and SOT-23-5 packages have different physical footprints and pin configurations. Direct board-level replacement is not possible without PCB layout modification. However, LMV821M7/NOPB provides equivalent electrical performance and can be used in new designs with appropriate PCB redesign.
Q: Why do LMV721 series parts have higher supply current than LMV821 series?
A: LMV721 series devices feature enhanced electrical performance with higher gain bandwidth product (10 MHz versus 5.5 MHz) and faster slew rate (5.25 V/µs versus 1.9 V/µs). This improved performance results in increased quiescent supply current (1.03 mA versus 300 µA). Selection between LMV821 and LMV721 series depends on application bandwidth requirements and power budget constraints.
Q: Are all substitute parts ROHS3 compliant?
A: Yes. All recommended substitute parts carry ROHS3 compliance certification. All parts also maintain MSL 1 (Unlimited) moisture sensitivity level and REACH Unaffected status, matching the compliance profile of the original LMV821DBVR.
Q: What is the temperature range consideration for LMV821AILT?
A: LMV821AILT operates across -40°C to 125°C, extending the upper temperature limit by 40°C compared to the original LMV821DBVR (-40°C to 85°C). This extended range provides additional thermal margin for applications operating in elevated ambient conditions. The extended range does not affect electrical performance within the standard -40°C to 85°C operating window.
Q: Can LMV721M5X/NOPB be used as a direct substitute for LMV821DBVR?
A: LMV721M5X/NOPB maintains SOT-23-5 package compatibility and supply voltage range (2.5 V to 5.5 V). However, electrical performance differs significantly: slew rate is 5.25 V/µs (versus 1.9 V/µs), gain bandwidth product is 10 MHz (versus 5.5 MHz), and supply current is 1.03 mA (versus 300 µA). This part is suitable for applications requiring enhanced bandwidth performance but requires evaluation of power consumption impact and circuit stability with the higher bandwidth device.
Q: What inventory availability should be considered for production planning?
A: LMV821M5X/NOPB offers the highest inventory availability at 20,200 pieces. LMV721M5X/NOPB provides 15,200 pieces. LMV821AILT has 16,555 pieces available. These inventory levels support sustained production requirements. Specific part selection should balance availability, electrical performance requirements, and package compatibility with application constraints.
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