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MAX4482ASA-T Equivalent & Substitute Parts
Part Overview
The MAX4482ASA-T is a general-purpose operational amplifier manufactured by Analog Devices Inc./Maxim Integrated, featuring dual circuits in an 8-SOIC surface-mount package. This device is classified as obsolete, which necessitates identification of active equivalent and substitute components for new designs and production continuity. The MAX4482ASA-T operates as a rail-to-rail output amplifier suitable for low-power applications requiring dual-channel amplification across supply voltages from 2.5V to 5.5V and operating temperatures from -40°C to 125°C.
Substiute Parts
Key Parameters
| Parameter | Value | Unit |
|---|---|---|
| Manufacturer Part Number | MAX4482ASA-T | — |
| Manufacturer | Analog Devices Inc./Maxim Integrated | — |
| Product Status | Obsolete | — |
| Amplifier Type | General Purpose | — |
| Number of Circuits | 2 | — |
| Output Type | Rail-to-Rail | — |
| Package / Case | 8-SOIC (0.154", 3.90mm Width) | — |
| Slew Rate | 0.08 | V/µs |
| Gain Bandwidth Product | 140 | kHz |
| Current - Input Bias | 0.1 | pA |
| Voltage - Input Offset | 1 | mV |
| Current - Supply | 50 (x2 Channels) | µA |
| Current - Output / Channel | 17 | mA |
| Voltage - Supply Span (Min) | 2.5 | V |
| Voltage - Supply Span (Max) | 5.5 | V |
| Operating Temperature | -40 to 125 | °C |
| Mounting Type | Surface Mount | — |
| RoHS Status | ROHS3 Compliant | — |
| Moisture Sensitivity Level (MSL) | 1 (Unlimited) | — |
Substitute Part Grouping Explanation
Substitution of the MAX4482ASA-T is determined by strict alignment of the following critical parameters:
Primary Substitution Criteria:
- Dual-circuit (2) general-purpose operational amplifier configuration
- Rail-to-rail output capability
- 8-SOIC surface-mount package with 0.154" (3.90mm) width
- Supply voltage range compatibility: minimum 2.5V, maximum 5.5V
- Operating temperature range: -40°C to 125°C (or subset thereof)
- ROHS3 compliance and MSL 1 rating
Secondary Performance Parameters:
- Slew rate and gain-bandwidth product determine signal fidelity in specific applications
- Input bias current and input offset voltage affect precision requirements
- Supply current and output current per channel define power budget constraints
Substitute parts are grouped into two categories based on performance characteristics:
Group 1 - Low-Speed Equivalents (Slew Rate ≤ 0.35V/µs, GBW ≤ 1.4 MHz): These parts maintain performance characteristics closest to the original MAX4482ASA-T, suitable for applications where bandwidth and slew rate are not critical limiting factors.
Group 2 - Enhanced-Performance Alternatives (Slew Rate ≥ 1.9V/µs, GBW ≥ 5.5 MHz): These parts provide improved dynamic performance while maintaining package compatibility and supply voltage specifications, suitable for applications requiring higher bandwidth or faster signal response.
Parameter Comparison
| Parameter | MAX4482ASA-T | LMR932F-GE2 | LMV722ID | LMV722IDR | LMV822AIDT | LMV822IDT | LMV822M/NOPB | LMV822MX/NOPB | LPV358M/NOPB | LPV358MX/NOPB |
|---|---|---|---|---|---|---|---|---|---|---|
| Manufacturer | Analog Devices | Rohm Semiconductor | Texas Instruments | Texas Instruments | STMicroelectronics | STMicroelectronics | Texas Instruments | Texas Instruments | Texas Instruments | Texas Instruments |
| Product Status | Obsolete | Active | Active | Active | Active | Active | Active | Active | Active | Active |
| Number of Circuits | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 | 2 |
| Output Type | 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 |
| Package / Case | 8-SOIC (3.90mm) | 8-SOP (4.40mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) | 8-SOIC (3.90mm) |
| Slew Rate (V/µs) | 0.08 | 0.35 | 5.25 | 5.25 | 1.9 | 1.9 | 2.0 | 2.0 | 0.1 | 0.1 |
| Gain Bandwidth Product (kHz) | 140 | 1400 | 10000 | 10000 | 5500 | 5500 | 5600 | 5600 | 152 | 152 |
| Current - Input Bias (nA) | 0.0001 | 5 | 260 | 260 | 60 | 60 | 40 | 40 | 2 | 2 |
| Voltage - Input Offset (mV) | 1 | 1 | 0.08 | 0.08 | 0.8 | 3.5 | 1 | 1 | 1.5 | 1.5 |
| Current - Supply (µA, x2 Channels) | 50 | 140 | 1810 | 1810 | 300 | 300 | 500 | 500 | 15 | 15 |
| Current - Output / Channel (mA) | 17 | 90 | 52.6 | 52.6 | 70 | 70 | 45 | 45 | 16 | 16 |
| Voltage - Supply Span Min (V) | 2.5 | 1.8 | 2.2 | 2.2 | 2.5 | 2.5 | 2.5 | 2.5 | 2.7 | 2.7 |
| Voltage - Supply Span Max (V) | 5.5 | 5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5.5 | 5 | 5 |
| Operating Temperature (°C) | -40 to 125 | -40 to 85 | -40 to 105 | -40 to 105 | -40 to 125 | -40 to 125 | -40 to 85 | -40 to 85 | -40 to 85 | -40 to 85 |
| RoHS Status | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant | ROHS3 Compliant |
| Moisture Sensitivity Level | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) | 1 (Unlimited) |
Engineering Selection Recommendations
Primary Substitutes for Direct Replacement:
The LMV822IDT and LMV822MX/NOPB from Texas Instruments represent the most direct functional equivalents to the MAX4482ASA-T. Both maintain the 8-SOIC package footprint, dual-circuit configuration, rail-to-rail output, and supply voltage range (2.5V to 5.5V). The LMV822IDT is qualified to AEC-Q100 automotive standards and supports the full -40°C to 125°C operating temperature range, matching the original part's thermal specification. The LMV822MX/NOPB operates to -40°C to 85°C, which is acceptable for non-extended-temperature applications. Both parts are active products with substantial inventory availability (17,900 and 30,163 units respectively).
Alternative for Extended Temperature Range:
The LMV822AIDT from STMicroelectronics provides automotive-grade qualification (AEC-Q100) with full -40°C to 125°C temperature support. This part is suitable for applications requiring automotive-level reliability and extended temperature operation.
Low-Power Alternative:
The LPV358MX/NOPB offers the lowest supply current consumption (15µA for dual channels) while maintaining the 8-SOIC package and dual-circuit configuration. This part is suitable for battery-powered or ultra-low-power applications where the reduced slew rate (0.1V/µs) and lower gain-bandwidth product (152 kHz) are acceptable. Operating temperature range is -40°C to 85°C.
Higher-Performance Alternative:
The LMV722IDR from Texas Instruments provides significantly enhanced performance with 5.25V/µs slew rate and 10 MHz gain-bandwidth product, suitable for applications requiring faster signal response. This part maintains the 8-SOIC package and dual-circuit configuration with supply voltage range 2.2V to 5.5V and operating temperature -40°C to 105°C. Inventory availability is substantial (25,300 units).
Package Consideration:
The LMR932F-GE2 from Rohm Semiconductor uses an 8-SOP package (4.40mm width) rather than 8-SOIC (3.90mm width). While functionally compatible, this package variant requires PCB layout modification and is not recommended for direct pin-compatible replacement without design review.
Frequently Asked Questions (FAQ)
Q: Can I use LMV722IDR as a direct replacement for MAX4482ASA-T?
A: The LMV722IDR is functionally compatible in terms of dual-circuit configuration, rail-to-rail output, 8-SOIC package, and supply voltage range (2.2V to 5.5V encompasses the original 2.5V to 5.5V specification). However, the operating temperature range is -40°C to 105°C, which does not extend to the original part's 125°C maximum. Use this part only if your application does not require operation above 105°C. The LMV722IDR offers superior performance with 5.25V/µs slew rate and 10 MHz gain-bandwidth product compared to the original 0.08V/µs and 140 kHz specifications.
Q: What is the difference between LMV822IDT and LMV822MX/NOPB?
A: Both parts share identical electrical specifications (1.9V/µs slew rate, 5.5 MHz gain-bandwidth product, 8-SOIC package, 2.5V to 5.5V supply range). The primary differences are packaging format (LMV822IDT is tape & reel; LMV822MX/NOPB is cut tape & digi-reel) and operating temperature range (LMV822IDT supports -40°C to 125°C; LMV822MX/NOPB supports -40°C to 85°C). Select LMV822IDT for extended-temperature applications; either part is acceptable for standard industrial temperature ranges.
Q: Why does LMR932F-GE2 have a different package width?
A: The LMR932F-GE2 uses an 8-SOP package with 4.40mm width, compared to the original 8-SOIC with 3.90mm width. While both are surface-mount packages with 8 pins, the different width affects PCB footprint and layout. This part is not recommended for direct pin-compatible replacement without PCB redesign.
Q: Is LPV358MX/NOPB suitable for high-speed applications?
A: No. The LPV358MX/NOPB has a slew rate of 0.1V/µs and gain-bandwidth product of 152 kHz, making it suitable only for low-frequency, low-speed applications. For applications requiring faster signal response, use LMV822IDT (1.9V/µs, 5.5 MHz) or LMV722IDR (5.25V/µs, 10 MHz).
Q: What is the advantage of using LMV822AIDT over LMV822IDT?
A: Both parts have identical electrical specifications and package. The LMV822AIDT carries automotive-grade qualification (AEC-Q100), making it suitable for automotive applications requiring supplier quality assurance and traceability. For non-automotive applications, either part is acceptable.
Q: Can I use a substitute part with a lower maximum operating temperature?
A: Only if your application does not require operation at the original part's maximum temperature. The MAX4482ASA-T supports -40°C to 125°C. Substitute parts with -40°C to 85°C or -40°C to 105°C ratings are acceptable for applications operating within those ranges. Verify your system's thermal requirements before selecting a substitute with reduced temperature range.
Q: What does ROHS3 compliance mean?
A: ROHS3 compliance indicates the part meets Restriction of Hazardous Substances Directive 3 requirements, restricting the use of lead, mercury, cadmium, hexavalent chromium, and certain brominated flame retardants. All substitute parts listed are ROHS3 compliant, matching the original part's environmental compliance status.
Q: How do I determine which substitute is best for my application?
A: Identify your application's critical requirements: (1) Operating temperature range—select LMV822IDT or LMV822AIDT for -40°C to 125°C; (2) Power consumption—select LPV358MX/NOPB for ultra-low power; (3) Signal bandwidth—select LMV722IDR for high-speed applications; (4) Standard performance—select LMV822MX/NOPB for general-purpose replacement. Verify supply voltage compatibility (minimum 2.5V for most substitutes) and package footprint (8-SOIC 3.90mm width for direct replacement).
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