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LMV822IDG4 Equivalent & Substitute Parts
Part Overview
The LMV822IDG4 is a general-purpose operational amplifier manufactured by Texas Instruments, featuring dual-channel configuration in an 8-SOIC surface-mount package. 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 LMV822IDG4 is classified as obsolete, necessitating identification of active equivalent and substitute components for new designs and production continuity. Substitute parts must maintain functional compatibility through matching electrical characteristics and identical package specifications.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| 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 | 500 | µA |
| 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 | 8-SOIC (0.154", 3.90mm Width) | — |
| Mounting Type | Surface Mount | — |
| Product Status | Obsolete | — |
Substitute Part Grouping Explanation
Substitution of the LMV822IDG4 is determined by strict adherence to the following electrical and mechanical parameters:
Critical Matching Parameters:
- Package type: 8-SOIC (0.154", 3.90mm Width) surface mount
- Dual-channel configuration (2 circuits)
- Rail-to-rail output capability
- Supply voltage range: minimum 2.5 V, maximum 5.5 V
- Operating temperature range: -40°C to 125°C
- Gain-bandwidth product: 5.5 MHz (±tolerance acceptable)
- Slew rate: 1.9 V/µs (±tolerance acceptable)
Acceptable Variation Ranges: Substitute parts may exhibit variations in input bias current, input offset voltage, supply current, and output current per channel, provided these variations do not degrade circuit performance in the target application. All substitute parts must maintain the 8-SOIC package specification and dual-channel architecture.
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 |
|---|---|---|---|---|---|---|---|---|---|---|
| LMV822IDG4 | Texas Instruments | Obsolete | 1.9 | 5.5 | 40 | 1 | 500 | 45 | -40 to 125 | 8-SOIC |
| LMV822M/NOPB | Texas Instruments | Active | 2 | 5.6 | 40 | 1 | 500 | 45 | -40 to 85 | 8-SOIC |
| LMV822MX/NOPB | Texas Instruments | Active | 2 | 5.6 | 40 | 1 | 500 | 45 | -40 to 85 | 8-SOIC |
| LMV722M/NOPB | National Semiconductor | Active | 5.25 | 10 | 260 | 0.08 | 2010 | 52.6 | -40 to 85 | 8-SOIC |
| LMV722MX/NOPB | National Semiconductor | Active | 5.25 | 10 | 260 | 0.08 | 2010 | 52.6 | -40 to 85 | 8-SOIC |
| AD8692ARZ | Analog Devices Inc. | Active | 5 | 10 | 0.001 | 0.4 | 950 | 80 | -40 to 125 | 8-SOIC |
| ISL28214FBZ | Renesas Electronics | Active | 2.5 | 5 | 0.003 | 0.5 | 300 | 31 | -40 to 125 | 8-SOIC |
| ISL28214FBZ-T7 | Renesas Electronics | Active | 2.5 | 5 | 0.003 | 0.5 | 300 | 31 | -40 to 125 | 8-SOIC |
| LMV822AIDT | STMicroelectronics | Active | 1.9 | 5.5 | 60 | 0.8 | 300 | 70 | -40 to 125 | 8-SOIC |
| LMV822IDT | STMicroelectronics | Active | 1.9 | 5.5 | 60 | 3.5 | 300 | 70 | -40 to 125 | 8-SOIC |
| MCP617-I/SN | Microchip Technology | Active | 0.08 | 0.19 | 5 | 0.15 | 19 | 17 | -40 to 85 | 8-SOIC |
Engineering Selection Recommendations
Primary Substitutes (Highest Compatibility):
LMV822M/NOPB and LMV822MX/NOPB are direct active replacements manufactured by Texas Instruments. Both parts maintain identical electrical specifications to the obsolete LMV822IDG4, including slew rate, gain-bandwidth product, input bias current, and input offset voltage. The primary difference is operating temperature range, which extends to -40°C to 85°C rather than 125°C. These parts are ROHS3 compliant and carry unlimited moisture sensitivity level (MSL 1).
LMV822AIDT and LMV822IDT, manufactured by STMicroelectronics, provide functional equivalence with identical slew rate and gain-bandwidth product. Both are AEC-Q100 qualified for automotive applications and support the full -40°C to 125°C temperature range. LMV822AIDT exhibits lower input offset voltage (0.8 mV) compared to LMV822IDT (3.5 mV).
Secondary Substitutes (Enhanced Performance):
LMV722M/NOPB and LMV722MX/NOPB offer improved performance characteristics with higher slew rate (5.25 V/µs) and gain-bandwidth product (10 MHz). These parts are suitable for applications requiring faster signal processing. Operating temperature range is -40°C to 85°C. Both are AEC-Q100 qualified.
AD8692ARZ (Analog Devices Inc.) provides superior input bias current (1 pA) and input offset voltage (400 µV), with extended operating temperature range (-40°C to 125°C). Slew rate and gain-bandwidth product are enhanced (5 V/µs and 10 MHz respectively). Supply voltage range extends to 6 V maximum.
ISL28214FBZ and ISL28214FBZ-T7 (Renesas Electronics) deliver low supply current (300 µA) and extended supply voltage range (1.8 V to 5.5 V minimum). Both support full -40°C to 125°C temperature range. Gain-bandwidth product is 5 MHz, closely matching the original specification.
Not Recommended:
MCP617-I/SN is a CMOS amplifier with significantly reduced gain-bandwidth product (190 kHz) and slew rate (0.08 V/µs). This part is unsuitable for applications requiring the 5.5 MHz bandwidth of the LMV822IDG4.
Frequently Asked Questions (FAQ)
Q: Can LMV822M/NOPB directly replace LMV822IDG4 in all applications?
A: LMV822M/NOPB is electrically compatible with LMV822IDG4 across all critical parameters. The primary consideration is operating temperature range: LMV822M/NOPB operates to 85°C maximum, while LMV822IDG4 operates to 125°C. Applications requiring operation above 85°C must select alternative parts such as LMV822AIDT, LMV822IDT, AD8692ARZ, or ISL28214FBZ series.
Q: What is the difference between LMV822M/NOPB and LMV822MX/NOPB?
A: Both parts are electrically identical. The difference is packaging: LMV822M/NOPB is supplied in Bulk packaging, while LMV822MX/NOPB is supplied in Cut Tape (CT) & Digi-Reel® format. Selection depends on procurement and assembly requirements.
Q: Are LMV722M/NOPB and LMV722MX/NOPB suitable substitutes?
A: LMV722 series parts are functionally compatible but represent enhanced performance variants. Slew rate increases to 5.25 V/µs and gain-bandwidth product to 10 MHz. These parts are suitable for applications where improved dynamic performance is beneficial. Operating temperature range is -40°C to 85°C.
Q: What are the advantages of AD8692ARZ over LMV822 variants?
A: AD8692ARZ offers superior input bias current (1 pA versus 40-60 nA) and lower input offset voltage (400 µV versus 0.8-3.5 mV). Slew rate and gain-bandwidth product are enhanced (5 V/µs and 10 MHz). Supply voltage range extends to 6 V. Operating temperature range is -40°C to 125°C. These characteristics make AD8692ARZ suitable for precision analog applications.
Q: Why is MCP617-I/SN not recommended as a substitute?
A: MCP617-I/SN is a CMOS amplifier with gain-bandwidth product of 190 kHz and slew rate of 0.08 V/µs. These specifications are approximately 29 times lower than the LMV822IDG4 (5.5 MHz and 1.9 V/µs respectively). MCP617-I/SN is unsuitable for applications requiring the bandwidth and speed of the original part.
Q: What is the significance of AEC-Q100 qualification?
A: AEC-Q100 qualification indicates the part meets automotive industry reliability standards. LMV822AIDT, LMV822IDT, LMV722M/NOPB, and LMV722MX/NOPB carry this qualification, making them suitable for automotive applications requiring enhanced reliability and temperature cycling validation.
Q: Can ISL28214FBZ and ISL28214FBZ-T7 be used interchangeably?
A: Both parts are electrically identical. The difference is packaging: ISL28214FBZ is supplied in Tube format, while ISL28214FBZ-T7 is supplied in Tape & Reel (TR) format. Selection depends on assembly and procurement requirements.
Q: What supply voltage range considerations apply to substitute selection?
A: LMV822IDG4 operates from 2.5 V to 5.5 V. Most substitute parts maintain this range. ISL28214FBZ and ISL28214FBZ-T7 extend the minimum to 1.8 V, enabling operation in lower-voltage applications. AD8692ARZ extends the maximum to 6 V. Verify supply voltage compatibility with circuit requirements before selection.
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