LMC6492BEM Equivalent & Substitute Parts

Part Overview

The LMC6492BEM is a dual-channel CMOS operational amplifier manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This device features rail-to-rail output capability and differential output configuration, designed for low-power analog signal processing applications. The LMC6492BEM carries a "Not For New Designs" product status, indicating that Texas Instruments has discontinued active development and support for this component. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and evaluate performance trade-offs for ongoing production or redesign initiatives.

Substiute Parts

LMC6492BEM

Texas InstrumentsIn Stock: 1680LMC6492BEM Datasheet

Current PartRFQ

LMC6492BEM/NOPB

National SemiconductorIn Stock: 1517LMC6492BEM/NOPB Datasheet

DirectRFQ

MCP6H02-E/SN

Microchip TechnologyIn Stock: 8205MCP6H02-E/SN Datasheet

MFR RecommendedRFQ

MCP6H02T-E/SN

Microchip TechnologyIn Stock: 12936MCP6H02T-E/SN Datasheet

MFR RecommendedRFQ

TS912BIDT

STMicroelectronicsIn Stock: 58321TS912BIDT Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMC6492BEM is determined by strict alignment of electrical and mechanical parameters within the dual-channel operational amplifier category. The critical parameters governing substitution eligibility are:

Mandatory Matching Parameters:

• Package type: 8-SOIC surface mount form factor
• Number of circuits: 2 channels
• Output configuration: Rail-to-rail capability
• Operating temperature range: -40°C to 125°C minimum
• Supply voltage span compatibility: Overlap with 2.5V to 15.5V range

Performance Parameters Defining Substitution Classes:

• Slew rate (1.3 V/µs baseline)
• Gain bandwidth product (1.5 MHz baseline)
• Input bias current (0.15 pA baseline)
• Input offset voltage (110 µV baseline)
• Supply current per channel (1.3 mA baseline)
• Output current per channel (30 mA baseline)

Substitute parts are grouped into two categories based on amplifier type classification: CMOS-type substitutes (TS912BIDT) maintain identical slew rate and similar gain bandwidth product; General Purpose amplifier substitutes (MCP6H02-E/SN, MCP6H02T-E/SN) offer lower supply current consumption but reduced slew rate and gain bandwidth product. The direct equivalent LMC6492BEM/NOPB maintains 100% parameter alignment and differs only in packaging format and product status.

Parameter Comparison

Engineering Selection Recommendations

LMC6492BEM/NOPB (Direct Equivalent)

The LMC6492BEM/NOPB is the direct functional equivalent of the LMC6492BEM, maintaining identical electrical specifications across all measured parameters. This part carries an Active product status, ensuring continued manufacturer support and supply availability. Selection of LMC6492BEM/NOPB is appropriate for applications requiring exact parameter matching with the original LMC6492BEM design. The primary distinction is packaging format (Bulk versus standard packaging) and product lifecycle status. This substitute eliminates obsolescence risk while preserving circuit performance characteristics.

TS912BIDT (CMOS-Type Substitute)

The TS912BIDT, manufactured by STMicroelectronics, maintains CMOS amplifier architecture and matches the slew rate specification (1.3 V/µs) of the LMC6492BEM. This device offers improved input bias current performance (1 pA versus 0.15 pA) and higher output current capability (75 mA versus 30 mA per channel). The TS912BIDT carries Active product status and ROHS3 compliance certification. Supply voltage span compatibility extends from 2.7V to 16V, providing broader low-voltage operation capability. The TS912BIDT includes AEC-Q100 automotive qualification, suitable for applications requiring automotive-grade reliability. Input offset voltage is higher (2 mV versus 110 µV), which may require circuit-level offset compensation in precision applications. Gain bandwidth product is marginally lower (1.4 MHz versus 1.5 MHz). Selection of TS912BIDT is appropriate for applications prioritizing supply current efficiency, output drive capability, and automotive qualification while accepting higher input offset voltage.

MCP6H02-E/SN and MCP6H02T-E/SN (General Purpose Substitutes)

The MCP6H02-E/SN and MCP6H02T-E/SN, manufactured by Microchip Technology, are general-purpose operational amplifiers offering significantly reduced supply current consumption (135 µA per channel versus 1.3 mA). Both variants maintain identical electrical specifications and differ only in packaging format (Tube versus Cut Tape & Digi-Reel). These devices carry Active product status and ROHS3 compliance certification. Supply voltage span compatibility extends from 3.5V to 16V, requiring minimum 3.5V supply voltage compared to 2.5V for the LMC6492BEM. Slew rate is reduced to 0.8 V/µs, and gain bandwidth product is lower at 1.2 MHz. Input bias current is higher (10 pA versus 0.15 pA), and input offset voltage is significantly higher (700 µV versus 110 µV). Output current capability is increased to 50 mA per channel. Selection of MCP6H02-E/SN or MCP6H02T-E/SN is appropriate for battery-powered or low-power applications where supply current minimization is critical and where the reduced slew rate and higher input offset voltage are acceptable within circuit design margins. The 3.5V minimum supply voltage requirement must be verified against system power architecture.

Frequently Asked Questions (FAQ)

Q: Can the LMC6492BEM/NOPB be used as a direct replacement without circuit modification?

A: Yes. The LMC6492BEM/NOPB maintains 100% electrical and mechanical compatibility with the LMC6492BEM. Pin configuration, package footprint, and all measured electrical parameters are identical. No circuit modification is required. The primary difference is product lifecycle status (Active versus Not For New Designs) and packaging format.

Q: What are the key differences between CMOS-type substitutes and General Purpose substitutes?

A: CMOS-type substitutes (TS912BIDT) maintain slew rate and gain bandwidth product specifications similar to the LMC6492BEM, making them suitable for applications requiring higher-speed signal processing. General Purpose substitutes (MCP6H02 series) prioritize supply current efficiency, reducing power consumption by approximately 90% but accepting reduced slew rate (0.8 V/µs versus 1.3 V/µs) and higher input offset voltage (700 µV versus 110 µV). Selection depends on application requirements for speed versus power efficiency.

Q: Is the TS912BIDT suitable for precision analog applications?

A: The TS912BIDT is suitable for applications where input offset voltage of 2 mV is acceptable. For precision applications requiring input offset voltage below 200 µV, the LMC6492BEM, LMC6492BEM/NOPB, or MCP6H02 series (700 µV) may require external offset compensation circuits. The LMC6492BEM and LMC6492BEM/NOPB offer the lowest input offset voltage (110 µV) among all listed substitutes.

Q: What is the minimum supply voltage requirement for each substitute?

A: LMC6492BEM and LMC6492BEM/NOPB require minimum 2.5V supply voltage. TS912BIDT requires minimum 2.7V. MCP6H02-E/SN and MCP6H02T-E/SN require minimum 3.5V supply voltage. Systems operating below 3.5V cannot use the MCP6H02 series without voltage regulation modifications.

Q: Are all substitute parts RoHS compliant?

A: The LMC6492BEM is RoHS non-compliant. The LMC6492BEM/NOPB compliance status is not specified in available documentation. The TS912BIDT, MCP6H02-E/SN, and MCP6H02T-E/SN are all ROHS3 compliant. For applications requiring RoHS compliance certification, TS912BIDT or MCP6H02 series are required.

Q: Can the MCP6H02 series be used in automotive applications?

A: The MCP6H02-E/SN and MCP6H02T-E/SN do not carry automotive qualification. The TS912BIDT carries AEC-Q100 automotive qualification, making it the only listed substitute suitable for automotive-grade applications requiring formal qualification documentation.

Q: What is the package compatibility across all substitutes?

A: All listed substitutes (LMC6492BEM/NOPB, MCP6H02-E/SN, MCP6H02T-E/SN, TS912BIDT) use the 8-SOIC surface mount package with identical 0.154" (3.90mm) width specification. PCB footprints and reflow soldering profiles are compatible across all parts. Packaging format differences (Bulk, Tube, Cut Tape & Digi-Reel) affect supply chain handling only and do not impact circuit-level compatibility.

Q: Which substitute offers the best output current capability?

A: The TS912BIDT provides the highest output current per channel at 75 mA, compared to 30 mA for the LMC6492BEM and 50 mA for the MCP6H02 series. Applications requiring high output drive capability should prioritize TS912BIDT selection.

Q: What is the supply current trade-off when selecting MCP6H02 substitutes?

A: The MCP6H02 series reduces supply current consumption to 135 µA per channel, representing approximately 90% reduction compared to the LMC6492BEM baseline of 1.3 mA per channel. This reduction is achieved through lower slew rate (0.8 V/µs versus 1.3 V/µs) and reduced gain bandwidth product (1.2 MHz versus 1.5 MHz). Applications where power consumption is the primary constraint should evaluate MCP6H02 series despite performance trade-offs.