LM82CIMQA Temperature Sensor - Equivalent & Substitute Parts

Part Overview

The LM82CIMQA is a digital temperature sensor manufactured by Texas Instruments, designed for local and remote temperature monitoring applications. It operates across a -40°C to 125°C range with 7-bit resolution and communicates via I2C/SMBus interface. The device is currently discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing system support and component procurement.

Substiute Parts

LM82CIMQA

Texas InstrumentsIn Stock: 1284LM82CIMQA Datasheet

Current PartRFQ

LM82CIMQA/NOPB

Texas InstrumentsIn Stock: 1173LM82CIMQA/NOPB Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the LM82CIMQA is determined by strict equivalence across the following critical parameters:

• Sensor Type & Functionality: Digital, Local/Remote temperature sensing capability
• Temperature Range: -40°C to 125°C for both local and remote sensing
• Communication Protocol: I2C/SMBus interface
• Supply Voltage: 3V to 3.6V operating range
• Resolution: 7-bit output resolution
• Accuracy Specification: ±3°C to ±4°C across the operating temperature range
• Package & Pinout: 16-SSOP surface mount package with identical mechanical dimensions
• Features: Output switch and programmable limit functionality

Only components matching all these parameters are classified as direct substitutes. The LM82CIMQA/NOPB meets all substitution criteria and is identified as a direct equivalent.

Parameter Comparison

Engineering Selection Recommendations

The LM82CIMQA/NOPB is a direct functional equivalent to the LM82CIMQA. Both components share identical electrical specifications, temperature sensing capabilities, communication protocols, and package configurations. The primary distinction is regulatory compliance status: the LM82CIMQA/NOPB carries ROHS3 Compliant certification, whereas the original LM82CIMQA is RoHS non-compliant. For applications requiring RoHS compliance, the LM82CIMQA/NOPB is the appropriate selection. Both components are classified as obsolete or discontinued, indicating limited future availability. Procurement planning should account for inventory constraints and potential long-term supply discontinuation.

Frequently Asked Questions (FAQ)

Q: Can the LM82CIMQA/NOPB be used as a direct replacement for the LM82CIMQA?

A: Yes. Both components are functionally identical across all electrical and mechanical parameters. They share the same sensor type, temperature range, resolution, accuracy, communication protocol, supply voltage, and 16-SSOP package configuration. Direct pin-for-pin substitution is supported without circuit modification.

Q: What is the difference between LM82CIMQA and LM82CIMQA/NOPB?

A: The primary difference is RoHS compliance status. The LM82CIMQA/NOPB is ROHS3 Compliant, while the LM82CIMQA is RoHS non-compliant. All other specifications, including electrical performance and package type, are identical.

Q: Are there packaging differences between these parts?

A: The LM82CIMQA is supplied without specified packaging, while the LM82CIMQA/NOPB is supplied in Tube packaging. Both use the same 16-SSOP surface mount package. Packaging format does not affect electrical or mechanical compatibility.

Q: What is the moisture sensitivity level for these components?

A: Both the LM82CIMQA and LM82CIMQA/NOPB have a Moisture Sensitivity Level (MSL) of 1, indicating unlimited shelf life without moisture control requirements.

Q: Are these components still available for procurement?

A: Both components are classified as discontinued or obsolete. The LM82CIMQA is discontinued at DiGi Electronics, and the LM82CIMQA/NOPB is listed as obsolete. Availability is limited to existing inventory. Current stock levels should be verified with authorized distributors before design commitment.

Q: What are the key parameters that determine substitution eligibility?

A: Substitution is determined by equivalence in sensor type, temperature range (-40°C to 125°C), I2C/SMBus communication, 3V to 3.6V supply voltage, 7-bit resolution, ±3°C to ±4°C accuracy, 16-SSOP package, and output switch with programmable limit features. All parameters must match for direct substitution.