THS1031CPWR Equivalent & Substitute Parts

Part Overview

The THS1031CPWR is a 10-bit pipelined analog-to-digital converter manufactured by Texas Instruments, designed for data acquisition applications requiring single or differential input processing. This component features a 1 MHz sampling rate and operates across a 3V to 5.5V supply range in both analog and digital domains. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, design updates, and production continuity.

Substiute Parts

THS1031CPWR

Texas InstrumentsIn Stock: 4759THS1031CPWR Datasheet

Current PartRFQ

ADC10040QCIMT/NOPB

Texas InstrumentsIn Stock: 1078ADC10040QCIMT/NOPB Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the THS1031CPWR is determined by strict alignment of core electrical and mechanical parameters:

Critical Matching Parameters:

• Resolution: 10 bits (exact match required)
• Architecture: Pipelined (exact match required)
• Input Configuration: 1 input, differential and single-ended capable (exact match required)
• Data Interface: Parallel (exact match required)
• Package: 28-TSSOP form factor (exact match required)
• Mounting: Surface mount (exact match required)

Allowable Variation Parameters:

• Sampling Rate: May increase (higher performance acceptable)
• Supply Voltage Ranges: May narrow (lower voltage operation acceptable if application permits)
• Operating Temperature Range: May expand (wider range acceptable)
• Product Status: Active status preferred for long-term availability

The ADC10040QCIMT/NOPB qualifies as a manufacturer-recommended substitute based on matching all critical parameters while offering enhanced performance characteristics and active product status.

Parameter Comparison

Engineering Selection Recommendations

The ADC10040QCIMT/NOPB is the manufacturer-recommended substitute for the obsolete THS1031CPWR. Selection of this alternative is justified on the following engineering grounds:

Functional Equivalence: Both devices share identical resolution, architecture, input configuration, data interface, and package specifications, ensuring direct functional replacement capability.

Performance Enhancement: The ADC10040QCIMT/NOPB provides a 33% increase in sampling rate (40 MSPS versus 30 MSPS), delivering superior performance without compromising backward compatibility.

Product Lifecycle Status: The substitute part maintains active product status with Texas Instruments, ensuring long-term availability, continued manufacturing support, and supply chain stability compared to the obsolete original part.

Compliance Certification: Both parts maintain ROHS3 compliance and REACH unaffected status. The ADC10040QCIMT/NOPB additionally carries AEC-Q100 automotive qualification, expanding its applicability to regulated environments.

Supply Voltage Consideration: The substitute part operates within a narrower supply voltage window (2.7V – 3.6V analog, 2.5V – 3.6V digital) compared to the original (3V – 5.5V). Applications operating at 3V to 3.6V experience full compatibility. Systems requiring operation above 3.6V require voltage regulation or alternative component selection.

Temperature Range: The substitute part extends the operating temperature range to -40°C – 85°C, providing enhanced thermal performance for demanding applications.

Frequently Asked Questions (FAQ)

Q: Can the ADC10040QCIMT/NOPB directly replace the THS1031CPWR without PCB modifications?

A: Yes, direct replacement is possible. Both components use identical 28-TSSOP packaging and pinout configuration. No PCB layout changes are required. However, verify that your application's supply voltage operates within the 2.7V – 3.6V range for the substitute part.

Q: What is the primary reason for substitution?

A: The THS1031CPWR is classified as obsolete. The ADC10040QCIMT/NOPB is the active, manufacturer-recommended alternative that maintains functional equivalence while ensuring ongoing availability and manufacturing support.

Q: Are there differences in signal processing performance between these parts?

A: Both devices employ identical pipelined architecture with 10-bit resolution and parallel data output. The ADC10040QCIMT/NOPB offers a higher sampling rate (40 MSPS versus 30 MSPS), which may improve system performance in bandwidth-limited applications but does not affect compatibility.

Q: What supply voltage range should I use for the substitute part?

A: The ADC10040QCIMT/NOPB operates at 2.7V – 3.6V for analog supply and 2.5V – 3.6V for digital supply. If your original design used 5V operation, you must implement voltage regulation to step down to the 3.6V maximum. Applications already operating at 3V – 3.6V require no modification.

Q: Does the substitute part support the same input configurations?

A: Yes. Both the THS1031CPWR and ADC10040QCIMT/NOPB support single-ended and differential input modes with identical signal processing characteristics.

Q: What is the moisture sensitivity level difference?

A: The THS1031CPWR has MSL 1 (unlimited shelf life). The ADC10040QCIMT/NOPB has MSL 3 (168-hour limit). This affects storage and handling procedures but does not impact functional performance after assembly.

Q: Is the substitute part suitable for automotive applications?

A: The ADC10040QCIMT/NOPB carries AEC-Q100 automotive qualification, making it suitable for automotive-grade applications. The original THS1031CPWR does not carry this certification.