TS942BID Equivalent & Substitute Parts

Part Overview

The TS942BID is a general-purpose operational amplifier manufactured by STMicroelectronics, featuring dual circuits in a rail-to-rail configuration housed in an 8-SOIC surface mount package. This device is classified as obsolete, making equivalent substitute parts necessary for ongoing design support and procurement continuity. The TS942BID operates across a 2.5 V to 10 V supply range with low input bias current and is suitable for applications requiring micropower operation with rail-to-rail output capability.

Substiute Parts

TS942BID

STMicroelectronicsIn Stock: 1002TS942BID Datasheet

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LMC6442AIM/NOPB

Texas InstrumentsIn Stock: 829LMC6442AIM/NOPB Datasheet

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LMC6442AIMX/NOPB

Texas InstrumentsIn Stock: 3309LMC6442AIMX/NOPB Datasheet

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LMC6442IM/NOPB

National SemiconductorIn Stock: 2253LMC6442IM/NOPB Datasheet

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LMC6442IMX/NOPB

Texas InstrumentsIn Stock: 8063LMC6442IMX/NOPB Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution of the TS942BID is determined by functional and electrical compatibility across the following critical parameters:

Functional Equivalence Criteria:

• Dual general-purpose operational amplifier configuration (2 circuits)
• Rail-to-rail output capability
• 8-SOIC surface mount package with identical physical dimensions (0.154", 3.90mm Width)
• Operating temperature range of -40°C to 85°C
• ROHS3 compliance and MSL 1 rating

Electrical Compatibility Parameters:

• Supply voltage range must encompass or exceed the TS942BID range (2.5 V to 10 V minimum)
• Slew rate, gain bandwidth product, input bias current, input offset voltage, and output current must be within acceptable operational tolerances for general-purpose amplifier applications
• Supply current specifications must support low-power operation requirements

The LMC6442 series from Texas Instruments and National Semiconductor meets all functional and electrical substitution criteria. All substitute parts are available in active product status with multiple packaging options (Tube, Tape & Reel, and Bulk).

Parameter Comparison

Engineering Selection Recommendations

Primary Substitute Selection:

The LMC6442IMX/NOPB (Texas Instruments, Tape & Reel packaging) is the recommended primary substitute for the TS942BID. This part is in active production status, ensuring long-term availability and supply chain stability. The LMC6442IMX/NOPB maintains full functional and electrical compatibility with the TS942BID while offering superior electrical characteristics, including lower input bias current (0.005 pA versus 1 pA) and reduced input offset voltage (1.5 mV versus 2 mV). The extended maximum supply voltage rating (11 V versus 10 V) provides additional design margin. Current inventory of 8003 units supports immediate procurement requirements.

Secondary Substitute Options:

The LMC6442AIMX/NOPB (Texas Instruments, Tape & Reel) and LMC6442IM/NOPB (National Semiconductor, Bulk) are functionally equivalent alternatives. The LMC6442AIMX/NOPB offers 3210 units in stock with identical electrical specifications to the primary recommendation. The LMC6442IM/NOPB provides 2166 units in bulk packaging for high-volume applications.

The LMC6442AIM/NOPB (Texas Instruments, Tube packaging) is suitable for lower-volume requirements with 813 units available.

Compliance Considerations:

All recommended substitutes maintain ROHS3 compliance and MSL 1 (Unlimited) moisture sensitivity ratings, ensuring compatibility with standard manufacturing and storage protocols. The extended supply voltage range of the LMC6442 series (1.8 V to 11 V) encompasses the TS942BID operating range, supporting direct pin-for-pin replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can the LMC6442 series directly replace the TS942BID without circuit modifications?

A: Yes. The LMC6442 series is pin-compatible with the TS942BID in the 8-SOIC package. Both devices feature identical pinout, dual general-purpose amplifier configuration, and rail-to-rail output capability. The extended supply voltage range of the LMC6442 (1.8 V to 11 V) encompasses the TS942BID range (2.5 V to 10 V), supporting direct substitution.

Q: What are the key electrical differences between the TS942BID and LMC6442 substitutes?

A: The LMC6442 series exhibits superior electrical performance in three areas: input bias current (0.005 pA versus 1 pA), input offset voltage (1.5 mV versus 2 mV), and maximum supply voltage (11 V versus 10 V). Slew rate and gain bandwidth product are comparable. These differences favor the LMC6442 for precision applications requiring lower input bias current and offset voltage specifications.

Q: Which packaging option should be selected for production?

A: Packaging selection depends on production volume and supply chain requirements. The LMC6442IMX/NOPB in Tape & Reel (TR) packaging is standard for automated assembly with 8003 units in stock. The LMC6442IM/NOPB in Bulk packaging suits high-volume applications with 2166 units available. Tube packaging (LMC6442AIM/NOPB) is appropriate for lower-volume or manual assembly processes with 813 units in stock.

Q: Are all substitute parts ROHS3 compliant?

A: The LMC6442AIMX/NOPB, LMC6442IMX/NOPB, and LMC6442AIM/NOPB are explicitly ROHS3 compliant. The LMC6442IM/NOPB (National Semiconductor) does not specify RoHS status in the provided data. Verification with the supplier is recommended for applications requiring explicit ROHS3 certification.

Q: What is the moisture sensitivity level of the substitute parts?

A: The LMC6442AIMX/NOPB, LMC6442IMX/NOPB, and LMC6442AIM/NOPB are rated MSL 1 (Unlimited), matching the TS942BID specification. This rating indicates no moisture sensitivity restrictions for storage or handling. The LMC6442IM/NOPB does not specify MSL in the provided data.

Q: Why is the TS942BID classified as obsolete?

A: The TS942BID is an older STMicroelectronics design. The LMC6442 series from Texas Instruments and National Semiconductor represents the current active equivalent technology, offering improved electrical performance and assured long-term availability.

Q: Can the LMC6442 series be used in applications originally designed for the TS942BID?

A: Yes. The LMC6442 series maintains functional equivalence across all critical parameters: dual-channel general-purpose amplifier configuration, rail-to-rail output, identical package dimensions, and compatible operating temperature range. The improved electrical characteristics (lower input bias current and offset voltage) make the LMC6442 suitable for all applications previously supported by the TS942BID.