AMC1203BDUB Equivalent & Substitute Parts

Part Overview

The AMC1203BDUB is a 16-bit Sigma-Delta analog-to-digital converter manufactured by Texas Instruments, designed for single-channel differential input data acquisition applications. This device features an integrated reference, SPI digital interface, and operates across the industrial temperature range of -40°C to 105°C. The AMC1203BDUB is classified as Last Time Buy, indicating limited availability and the necessity to identify equivalent alternatives for ongoing design requirements and procurement planning.

Substiute Parts

AMC1203BDUB

Texas InstrumentsIn Stock: 1398AMC1203BDUB Datasheet

Current PartRFQ

AMC1203BDUBR

Texas InstrumentsIn Stock: 774AMC1203BDUBR Datasheet

MFR RecommendedRFQ

AMC1203DUB

Texas InstrumentsIn Stock: 1273AMC1203DUB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AMC1203BDUB are determined by strict equivalence across all electrical and mechanical parameters. The following criteria establish substitutability:

Electrical Parameters (Must Match):

• Resolution: 16 bits
• Sampling Rate: 40 kSPS
• Input Configuration: 1 differential input
• Data Interface: SPI
• Architecture: Sigma-Delta
• Reference: Internal
• Supply Voltages: 5V analog and digital

Mechanical Parameters (Must Match):

• Package: 8-SMD, Gull Wing
• Mounting: Surface Mount
• Base Product Number: AMC1203

Compliance Parameters (Must Match):

• RoHS3 Compliant
• MSL Rating: 3 (168 Hours)

Substitutes are classified into two categories:

1. MFR Recommended Substitute (Packaging Variant): AMC1203BDUBR differs only in packaging format (Tape & Reel vs. Tube), maintaining identical electrical and mechanical specifications with Active product status.

2. Parametric Equivalent (Packaging Variant): AMC1203DUB matches all electrical and mechanical parameters with identical packaging format (Tube), also classified as Last Time Buy.

Parameter Comparison

Engineering Selection Recommendations

AMC1203BDUBR (MFR Recommended Substitute): This part is the preferred alternative for new designs and ongoing procurement. It maintains complete electrical and mechanical equivalence to the AMC1203BDUB while offering Active product status, ensuring long-term availability and supply chain stability. The only difference is packaging format (Tape & Reel vs. Tube), which is suitable for automated assembly processes. All compliance certifications (ROHS3, MSL 3) are identical.

AMC1203DUB (Parametric Equivalent): This part provides full electrical and mechanical compatibility with identical packaging format (Tube). However, it shares Last Time Buy status with the original part, indicating limited future availability. Selection of this substitute should be based on specific packaging requirements that necessitate Tube format over Tape & Reel.

For applications requiring long-term component availability and supply chain continuity, AMC1203BDUBR is the appropriate selection. Both substitutes are fully compliant with ROHS3 and maintain identical MSL ratings for moisture-sensitive handling.

Frequently Asked Questions (FAQ)

Q: Can AMC1203BDUBR be used as a direct replacement for AMC1203BDUB in existing designs?

A: Yes. AMC1203BDUBR is electrically and mechanically identical to AMC1203BDUB. The only difference is packaging format (Tape & Reel vs. Tube). Both use the same 8-SOP package footprint and are pin-compatible. No circuit modifications are required.

Q: What is the difference between Tube and Tape & Reel packaging?

A: Tube packaging contains loose components in a plastic tube, suitable for manual assembly or small-volume production. Tape & Reel packaging places components on a continuous carrier tape wound on a reel, optimized for automated pick-and-place assembly. Both formats contain identical components with identical electrical specifications.

Q: Why is AMC1203BDUB classified as Last Time Buy?

A: Last Time Buy status indicates that Texas Instruments has discontinued or will discontinue production of this specific part number. Customers are advised to secure inventory or transition to active alternatives such as AMC1203BDUBR.

Q: Are all three parts ROHS3 compliant?

A: Yes. AMC1203BDUB, AMC1203BDUBR, and AMC1203DUB are all ROHS3 compliant with identical MSL ratings of 3 (168 Hours).

Q: Which substitute should I select for a new design?

A: AMC1203BDUBR is recommended for new designs due to its Active product status, ensuring availability throughout the design lifecycle and production ramp. It provides identical electrical performance and compliance to the original part.

Q: Can I mix packaging formats in the same production run?

A: Yes, provided your assembly process can accommodate both Tube and Tape & Reel formats. However, standardizing on a single packaging format (Tape & Reel via AMC1203BDUBR) is recommended for manufacturing efficiency and supply chain simplification.