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LMC662AIMX Equivalent & Substitute Parts
Part Overview
The LMC662AIMX is a CMOS dual-channel operational amplifier in 8-SOIC surface mount packaging, manufactured by Texas Instruments. This device features push-pull, rail-to-rail output configuration with a slew rate of 1.1V/µs and gain bandwidth product of 1.4 MHz. The LMC662AIMX is classified as obsolete product status. Identification of equivalent and substitute parts is necessary to support ongoing system maintenance, design updates, and procurement continuity for applications currently utilizing this component.
Substiute Parts
Key Parameters
| Parameter | Value |
|---|---|
| Manufacturer Part Number | LMC662AIMX |
| Manufacturer | Texas Instruments |
| Category | Linear, Amplifiers |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) |
| Amplifier Type | CMOS |
| Number of Circuits | 2 |
| Output Type | Push-Pull, Rail-to-Rail |
| Slew Rate | 1.1V/µs |
| Gain Bandwidth Product | 1.4 MHz |
| Current - Input Bias | 0.002 pA |
| Voltage - Input Offset | 1 mV |
| Current - Supply | 750µA (x2 Channels) |
| Current - Output / Channel | 40 mA |
| Voltage - Supply Span (Min) | 4.75 V |
| Voltage - Supply Span (Max) | 15.5 V |
| Operating Temperature | -40°C ~ 85°C (TJ) |
| Mounting Type | Surface Mount |
| Product Status | Obsolete |
| RoHS Status | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) |
Substitute Part Grouping Explanation
Substitution of the LMC662AIMX is determined by compatibility across the following critical parameters:
Mechanical Compatibility: All substitute parts must use the 8-SOIC (0.154", 3.90mm Width) surface mount package to ensure direct PCB footprint compatibility.
Functional Compatibility: Substitute parts must be dual-channel (2 circuits) amplifiers with rail-to-rail output capability. The output type configuration (push-pull vs. rail-to-rail only) and electrical performance characteristics (slew rate, gain bandwidth product, input bias current, input offset voltage) determine functional equivalence and application suitability.
Electrical Operating Range: Substitute parts must support the supply voltage range of the LMC662AIMX (4.75V to 15.5V minimum). Parts with extended or equivalent supply ranges are acceptable. Output current capability (40 mA per channel for LMC662AIMX) and supply current consumption are secondary selection criteria based on application requirements.
Compliance & Status: All substitute parts listed are ROHS3 compliant and carry MSL 1 rating. Active product status substitutes are preferred over obsolete parts for new designs and long-term availability.
Parameter Comparison
| Parameter | LMC662AIMX | LMC662AIMX/NOPB | TLC2272CDR | TLC2272ID | TLC2272IDR | TLC2272MDR | AD8662ARZ | AD8662ARZ-REEL | AD8662ARZ-REEL7 | AD8667ARZ | AD8667ARZ-REEL |
|---|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. | Analog Devices Inc. |
| Package / Case | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC | 8-SOIC |
| Amplifier Type | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | CMOS | General Purpose | General Purpose |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Output Type | Push-Pull, Rail-to-Rail | Push-Pull, Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail | Rail-to-Rail |
| Slew Rate (V/µs) | 1.1 | 1.1 | 3.6 | 3.6 | 3.6 | 3.6 | 3.5 | 3.5 | 3.5 | 0.3 | 0.3 |
| Gain Bandwidth Product (MHz) | 1.4 | 1.4 | 2.25 | 2.25 | 2.25 | 2.25 | 4 | 4 | 4 | 0.54 | 0.54 |
| Current - Input Bias (pA) | 0.002 | 0.002 | 1 | 1 | 1 | 1 | 0.3 | 0.3 | 0.3 | 0.3 | 0.3 |
| Voltage - Input Offset (mV) | 1 | 1 | 0.3 | 0.3 | 0.3 | 0.3 | 0.05 | 0.05 | 0.05 | 0.04 | 0.04 |
| Current - Supply (mA, x2 Channels) | 0.75 | 0.75 | 2.4 | 2.4 | 2.4 | 2.4 | 1.25 | 1.25 | 1.25 | 0.23 | 0.23 |
| Current - Output / Channel (mA) | 40 | 40 | 50 | 50 | 50 | 50 | 140 | 140 | 140 | 50 | 50 |
| Voltage - Supply Span Min (V) | 4.75 | 4.75 | 4.4 | 4.4 | 4.4 | 4.4 | 5 | 5 | 5 | 5 | 5 |
| Voltage - Supply Span Max (V) | 15.5 | 15.5 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 | 16 |
| Operating Temperature (°C) | -40 ~ 85 | -40 ~ 85 | 0 ~ 70 | -40 ~ 125 | -40 ~ 125 | -55 ~ 125 | -40 ~ 125 | -40 ~ 125 | -40 ~ 125 | -40 ~ 125 | -40 ~ 125 |
| Mounting Type | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount | Surface Mount |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level (MSL) | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 | 1 |
Engineering Selection Recommendations
Direct Equivalent (Same Electrical Performance):
LMC662AIMX/NOPB is the direct equivalent of LMC662AIMX. Both parts share identical electrical specifications, package configuration, and operating parameters. The primary distinction is product status: LMC662AIMX/NOPB carries active status, providing superior long-term availability and supply chain continuity compared to the obsolete LMC662AIMX.
Texas Instruments TLC2272 Series (Enhanced Performance):
The TLC2272 series (TLC2272CDR, TLC2272ID, TLC2272IDR, TLC2272MDR) represents an enhanced alternative within the Texas Instruments product line. These parts offer improved electrical characteristics including higher slew rate (3.6V/µs vs. 1.1V/µs), increased gain bandwidth product (2.25 MHz vs. 1.4 MHz), and superior input offset voltage (300 µV vs. 1 mV). All variants maintain 8-SOIC packaging and rail-to-rail output configuration. Operating temperature ranges vary by packaging variant: TLC2272CDR operates 0°C to 70°C, while TLC2272ID, TLC2272IDR, and TLC2272MDR extend to -40°C to 125°C. All TLC2272 variants carry active product status.
Analog Devices AD8662 Series (High Output Current):
The AD8662 series (AD8662ARZ, AD8662ARZ-REEL, AD8662ARZ-REEL7) provides significantly enhanced output current capability (140 mA per channel vs. 40 mA), making these parts suitable for applications requiring higher drive capability. Slew rate (3.5V/µs) and gain bandwidth product (4 MHz) exceed LMC662AIMX specifications. Input offset voltage (50 µV) and input bias current (0.3 pA) represent substantial improvements. All AD8662 variants operate across -40°C to 125°C temperature range and carry active product status.
Analog Devices AD8667 Series (Low Power, Lower Bandwidth):
The AD8667 series (AD8667ARZ, AD8667ARZ-REEL) offers reduced power consumption (230 µA vs. 750 µA supply current) with trade-offs in bandwidth performance. Slew rate (0.3V/µs) and gain bandwidth product (540 kHz) are substantially lower than LMC662AIMX. Input offset voltage (40 µV) and input bias current (0.3 pA) are superior. These parts are suitable for power-constrained applications where bandwidth requirements are modest. Both variants operate -40°C to 125°C and carry active product status.
Packaging Considerations:
All substitute parts are available in multiple packaging formats (tube, cut tape with digi-reel, tape and reel). Selection should align with procurement and assembly requirements. Inventory availability varies across packaging options.
Frequently Asked Questions (FAQ)
Q: Can LMC662AIMX/NOPB be used as a direct replacement for LMC662AIMX?
A: Yes. LMC662AIMX/NOPB is electrically and mechanically identical to LMC662AIMX. The primary advantage is active product status, ensuring continued availability and supply chain support. Both parts share identical electrical specifications, package configuration, and operating parameters.
Q: What are the key differences between LMC662AIMX and TLC2272 series parts?
A: The TLC2272 series offers enhanced performance with higher slew rate (3.6V/µs vs. 1.1V/µs), increased gain bandwidth product (2.25 MHz vs. 1.4 MHz), and improved input offset voltage (300 µV vs. 1 mV). Output type differs: LMC662AIMX provides push-pull, rail-to-rail output, while TLC2272 provides rail-to-rail output only. All parts maintain 8-SOIC packaging and dual-channel configuration. TLC2272 variants carry active product status.
Q: When should AD8662 series parts be selected over other alternatives?
A: AD8662 series parts are selected when applications require high output current capability (140 mA per channel vs. 40 mA for LMC662AIMX). These parts also provide superior slew rate (3.5V/µs), gain bandwidth product (4 MHz), and input offset voltage (50 µV). Trade-off is higher supply current consumption (1.25 mA vs. 0.75 mA). All AD8662 variants carry active product status and operate across -40°C to 125°C.
Q: What is the purpose of AD8667 series parts in this substitution matrix?
A: AD8667 series parts address power-constrained applications where reduced supply current (230 µA vs. 750 µA) is critical. These parts sacrifice bandwidth performance (slew rate 0.3V/µs, gain bandwidth product 540 kHz) compared to LMC662AIMX. Input offset voltage (40 µV) and input bias current (0.3 pA) are superior. Selection is appropriate only when bandwidth requirements are modest and power consumption is a primary design constraint.
Q: Are all substitute parts compatible with the 8-SOIC package footprint?
A: Yes. All substitute parts listed use 8-SOIC (0.154", 3.90mm Width) surface mount packaging, ensuring direct PCB footprint compatibility with LMC662AIMX designs. No layout modifications are required for package substitution.
Q: What is the significance of product status (Active vs. Obsolete) in part selection?
A: Product status directly impacts long-term availability and supply chain continuity. Obsolete parts (LMC662AIMX) have limited remaining inventory and no manufacturer support for future production. Active status parts (all listed substitutes) are currently manufactured and supported by their respective suppliers, ensuring availability for ongoing production and future design iterations.
Q: Do all substitute parts meet RoHS3 compliance requirements?
A: Yes. All substitute parts listed carry ROHS3 compliance certification and MSL 1 (Unlimited) moisture sensitivity rating, matching the compliance profile of LMC662AIMX. No additional compliance verification is required for substitution.
Q: How do operating temperature ranges differ across substitute options?
A: Operating temperature ranges vary by part and packaging variant. LMC662AIMX operates -40°C to 85°C. TLC2272CDR operates 0°C to 70°C (narrower range), while TLC2272ID, TLC2272IDR, and TLC2272MDR extend to -40°C to 125°C. AD8662 and AD8667 series parts all operate -40°C to 125°C. Selection should align with application temperature requirements.
Q: What packaging format options are available for substitute parts?
A: Substitute parts are available in multiple packaging formats: tube, cut tape with digi-reel, and tape and reel. Specific part numbers indicate packaging format (e.g., TLC2272CDR = cut tape, TLC2272ID = tube, TLC2272MDR = tape and reel). Selection should align with procurement volume, assembly equipment compatibility, and inventory management requirements.
Q: Can TLC2272 parts be used in applications originally designed for LMC662AIMX?
A: TLC2272 parts are functionally compatible with LMC662AIMX in most applications due to identical package, dual-channel configuration, and rail-to-rail output capability. Enhanced electrical performance (higher slew rate, gain bandwidth product, and improved input offset voltage) generally provides design margin. However, applications with specific bandwidth or output current limitations should be evaluated individually. Operating temperature range differences (TLC2272CDR: 0°C to 70°C vs. others: -40°C to 125°C) must be verified against application requirements.
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