LMC6682AIN Equivalent & Substitute Parts

Part Overview

The LMC6682AIN is a CMOS dual-channel operational amplifier manufactured by Texas Instruments, housed in a 14-pin DIP package. This device features rail-to-rail output capability and is designed for low-power analog signal processing applications. The LMC6682AIN is classified as obsolete, making identification of functionally equivalent substitute components necessary for ongoing design support and procurement planning.

Substiute Parts

LMC6682AIN

Texas InstrumentsIn Stock: 1099LMC6682AIN Datasheet

Current PartRFQ

MCP6022-E/P

Microchip TechnologyIn Stock: 1237MCP6022-E/P Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the LMC6682AIN is determined by the following critical parameters:

Functional Requirements:

• Dual-channel amplifier configuration (2 circuits)
• Rail-to-rail output capability
• CMOS or general-purpose amplifier topology
• Through-hole mounting compatibility

Electrical Compatibility Criteria:

• Supply voltage range must encompass or exceed the LMC6682AIN operating range (1.8 V to 10 V minimum)
• Slew rate and gain-bandwidth product define signal fidelity; lower values indicate reduced performance
• Input bias current and input offset voltage characterize precision; lower values indicate improved accuracy
• Output current capability must support load requirements
• Operating temperature range must cover the application environment

Physical Compatibility:

• Package form factor and pin count determine PCB layout feasibility
• Through-hole mounting type must be maintained for direct socket replacement

The MCP6022-E/P satisfies functional substitution criteria through dual-channel configuration and rail-to-rail output. However, package differences and electrical parameter variations require engineering evaluation for specific applications.

Parameter Comparison

Engineering Selection Recommendations

Product Status Consideration: The LMC6682AIN is classified as obsolete. The MCP6022-E/P is an active product with current manufacturing support and availability. Selection of the MCP6022-E/P provides access to ongoing supply chain support and technical documentation updates.

Compliance Status: The LMC6682AIN is RoHS non-compliant. The MCP6022-E/P is ROHS3 compliant, meeting current environmental and regulatory requirements for new designs and procurement in regulated markets.

Electrical Performance Trade-offs: The MCP6022-E/P demonstrates superior electrical characteristics in slew rate (7 V/µs versus 1.2 V/µs), gain-bandwidth product (10 MHz versus 1.2 MHz), input bias current (1 pA versus 2 µA), and input offset voltage (250 µV versus 5 mV). These improvements support higher-fidelity signal processing.

The MCP6022-E/P exhibits reduced output current capability (30 mA versus 70 mA per channel) and narrower supply voltage range (2.5 V to 5.5 V versus 1.8 V to 10 V). Applications requiring high output current or extended supply voltage operation require alternative evaluation.

Package Compatibility: The LMC6682AIN uses 14-DIP packaging; the MCP6022-E/P uses 8-DIP packaging. Direct socket replacement is not possible. PCB redesign or adapter solutions are required for physical integration.

Temperature Range: The MCP6022-E/P supports extended operating temperature range (-40°C to 125°C) compared to the LMC6682AIN (-40°C to 85°C), providing broader environmental applicability.

Frequently Asked Questions (FAQ)

Q: Can the MCP6022-E/P directly replace the LMC6682AIN in existing PCB designs?

A: No. The MCP6022-E/P uses 8-DIP packaging while the LMC6682AIN uses 14-DIP packaging. Pin counts and physical dimensions differ, preventing direct socket replacement. PCB layout modification or adapter circuitry is required.

Q: What are the key electrical differences between these devices?

A: The MCP6022-E/P provides superior dynamic performance (7 V/µs slew rate, 10 MHz bandwidth) and precision (1 pA input bias, 250 µV offset) compared to the LMC6682AIN (1.2 V/µs, 1.2 MHz, 2 µA, 5 mV). The MCP6022-E/P has reduced output current (30 mA versus 70 mA) and narrower supply range (2.5 V–5.5 V versus 1.8 V–10 V).

Q: Is the MCP6022-E/P suitable for applications requiring the full 1.8 V to 10 V supply range of the LMC6682AIN?

A: No. The MCP6022-E/P operates within 2.5 V to 5.5 V supply range. Applications requiring operation below 2.5 V or above 5.5 V require alternative component selection.

Q: Does the MCP6022-E/P meet current regulatory compliance requirements?

A: Yes. The MCP6022-E/P is ROHS3 compliant and REACH unaffected, meeting current environmental regulations. The LMC6682AIN is RoHS non-compliant.

Q: What is the availability status of each device?

A: The LMC6682AIN is obsolete with limited remaining inventory (1025 pcs reported). The MCP6022-E/P is an active product with current manufacturing and broader availability (1198 pcs reported).

Q: Can the MCP6022-E/P handle the same output current loads as the LMC6682AIN?

A: No. The MCP6022-E/P provides 30 mA per channel output current versus 70 mA for the LMC6682AIN. Applications requiring output currents exceeding 30 mA per channel require alternative evaluation or external buffering.

Q: What mounting considerations apply to substitution?

A: Both devices use through-hole mounting technology. However, the 14-DIP to 8-DIP package transition requires PCB redesign or adapter solutions. Pin assignment differences must be verified against application schematics.