LMC6484AIM Equivalent & Substitute Parts

Part Overview

The LMC6484AIM is a CMOS operational amplifier featuring four independent circuits in a 14-SOIC surface mount package. This device provides rail-to-rail output capability with low input bias current and is designed for general-purpose analog signal processing applications. The LMC6484AIM is classified as obsolete product status, making identification of active equivalent and substitute parts essential for ongoing design support and procurement continuity. Substitute parts must maintain functional compatibility across critical electrical parameters including amplifier type, circuit count, output characteristics, and supply voltage range.

Substiute Parts

LMC6484AIM

Texas InstrumentsIn Stock: 4730LMC6484AIM Datasheet

Current PartRFQ

LMC6484AIMX/NOPB

Texas InstrumentsIn Stock: 55452LMC6484AIMX/NOPB Datasheet

MFR RecommendedRFQ

MC33204DTBR2G

onsemiIn Stock: 5183MC33204DTBR2G Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMC6484AIM is determined by strict equivalence across the following critical parameters:

Primary Substitution Criteria:

• Amplifier Type: CMOS technology
• Number of Circuits: 4 independent amplifier circuits
• Output Type: Rail-to-Rail output capability
• Package Type: 14-pin surface mount configuration
• Mounting Type: Surface Mount

Secondary Compatibility Parameters:

• Slew Rate: Minimum 1.3 V/µs
• Gain Bandwidth Product: Minimum 1.5 MHz
• Input Bias Current: Maximum 0.02 pA (CMOS characteristic)
• Input Offset Voltage: Maximum 110 µV
• Supply Current: Maximum 2.6 mA (x4 Channels)
• Output Current per Channel: Minimum 30 mA
• Supply Voltage Range: 3 V to 15.5 V overlap required
• Operating Temperature: -40°C to 85°C minimum coverage

Packaging Considerations: Substitute parts may utilize different 14-pin surface mount packages (14-SOIC or 14-TSSOP) provided pin configuration and electrical characteristics remain compatible. Package width variations (3.90mm vs 4.40mm) are acceptable for PCB layout redesign scenarios.

Compliance Status: The LMC6484AIM is RoHS non-compliant. Active substitute parts meeting RoHS3 compliance are preferred for new designs and long-term procurement strategies.

Parameter Comparison

Engineering Selection Recommendations

LMC6484AIMX/NOPB (Texas Instruments)

The LMC6484AIMX/NOPB is the direct functional equivalent of the LMC6484AIM. This part maintains identical electrical specifications across all critical parameters: CMOS amplifier type, four circuits, rail-to-rail output, 1.3 V/µs slew rate, and 1.5 MHz gain bandwidth product. The primary distinction is product status: LMC6484AIMX/NOPB is classified as Active, ensuring long-term availability and supply continuity. Both parts share the same 14-SOIC package footprint (3.90mm width) and identical pin configuration, enabling direct PCB substitution without layout modification. LMC6484AIMX/NOPB achieves ROHS3 compliance, addressing regulatory requirements for new designs. Inventory availability is significantly higher (55,400 pcs vs 4,681 pcs), supporting production scaling. This part is the preferred substitute for obsolete LMC6484AIM applications.

MC33204DTBR2G (onsemi)

The MC33204DTBR2G is a functional substitute with notable parameter variations. This general-purpose amplifier maintains four circuits with rail-to-rail output in a 14-pin surface mount package. Key differences include: lower slew rate (1.0 V/µs vs 1.3 V/µs), higher gain bandwidth product (2.2 MHz vs 1.5 MHz), higher input bias current (80 nA vs 0.02 pA), and significantly higher input offset voltage (10 mV vs 110 µV). Supply current is substantially lower (0.9 mA vs 2.6 mA), and output current per channel is higher (80 mA vs 30 mA). The package is 14-TSSOP (4.40mm width) rather than 14-SOIC, requiring PCB layout redesign. Operating temperature range extends to 105°C. MC33204DTBR2G is ROHS3 compliant and Active status. This substitute is suitable for applications where lower power consumption and higher output current are beneficial, and where the higher input offset voltage and lower slew rate are acceptable trade-offs. PCB redesign is required due to package change.

Frequently Asked Questions (FAQ)

Q: Can LMC6484AIMX/NOPB be used as a direct replacement for LMC6484AIM without PCB modification?

A: Yes. LMC6484AIMX/NOPB maintains identical electrical specifications and shares the same 14-SOIC package footprint (3.90mm width) and pin configuration as LMC6484AIM. Direct PCB substitution is possible without layout changes.

Q: What is the primary reason to substitute LMC6484AIM?

A: LMC6484AIM is classified as obsolete product status. LMC6484AIMX/NOPB is the active equivalent, ensuring continued supply availability and supporting long-term design sustainability.

Q: Is MC33204DTBR2G a pin-compatible substitute?

A: MC33204DTBR2G uses a 14-TSSOP package (4.40mm width) compared to LMC6484AIM's 14-SOIC package (3.90mm width). While both are 14-pin surface mount packages, the different package types require PCB layout redesign. Pin-to-pin functional compatibility exists for the four amplifier circuits, but physical footprint differs.

Q: What are the key electrical differences between MC33204DTBR2G and LMC6484AIM?

A: MC33204DTBR2G has lower slew rate (1.0 V/µs vs 1.3 V/µs), higher gain bandwidth product (2.2 MHz vs 1.5 MHz), significantly higher input bias current (80 nA vs 0.02 pA), higher input offset voltage (10 mV vs 110 µV), and lower supply current (0.9 mA vs 2.6 mA). Output current per channel is higher (80 mA vs 30 mA).

Q: Does LMC6484AIMX/NOPB meet RoHS compliance requirements?

A: Yes. LMC6484AIMX/NOPB is ROHS3 compliant, whereas LMC6484AIM is RoHS non-compliant. This makes LMC6484AIMX/NOPB suitable for applications requiring regulatory compliance.

Q: What is the supply voltage compatibility range for substitute parts?

A: LMC6484AIM and LMC6484AIMX/NOPB both support 3 V to 15.5 V supply range. MC33204DTBR2G supports 1.8 V to 12 V. The overlap range (3 V to 12 V) is compatible across all three parts.

Q: Which substitute part has better inventory availability?

A: LMC6484AIMX/NOPB has significantly higher inventory (55,400 pcs) compared to LMC6484AIM (4,681 pcs) and MC33204DTBR2G (5,154 pcs), supporting production scaling and reducing supply risk.

Q: Can MC33204DTBR2G be used in applications requiring low input offset voltage?

A: MC33204DTBR2G has input offset voltage of 10 mV, which is 91 times higher than LMC6484AIM's 110 µV specification. Applications requiring precision offset performance should use LMC6484AIMX/NOPB instead.

Q: What is the operating temperature range difference between substitutes?

A: LMC6484AIM and LMC6484AIMX/NOPB operate from -40°C to 85°C (junction temperature). MC33204DTBR2G extends to -40°C to 105°C (ambient temperature), providing wider temperature coverage for high-temperature applications.