AMC1203BDW Equivalent & Substitute Parts

Part Overview

The AMC1203BDW 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 operates at a 40 kHz sampling rate with SPI digital interface and internal voltage reference, suitable for precision measurement systems requiring low-power signal conversion.

The AMC1203BDW carries a Last Time Buy product status, indicating that Texas Instruments has discontinued or will discontinue production. This status necessitates identification of equivalent substitute components to ensure design continuity and supply chain reliability for ongoing production and maintenance applications.

Substiute Parts

AMC1203BDW
Texas InstrumentsIn Stock: 1144AMC1203BDW Datasheet
AMC1203BDW
Current Part
AMC1203DW
Texas InstrumentsIn Stock: 698AMC1203DW Datasheet
AMC1203DW
Parametric Equivalent

Key Parameters

Parameter Value
Manufacturer Part Number AMC1203BDW
Manufacturer Texas Instruments
Number of Bits 16
Sampling Rate (Per Second) 40k
Number of Inputs 1
Input Type Differential
Data Interface SPI
Architecture Sigma-Delta
Reference Type Internal
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Operating Temperature Range -40°C ~ 105°C
Package / Case 16-SOIC (0.295", 7.50mm Width)
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution eligibility for the AMC1203BDW is determined by strict equivalence across the following critical parameters:

  • Resolution: 16-bit conversion capability
  • Sampling Rate: 40 kHz per second
  • Input Configuration: Single differential input channel
  • Digital Interface: SPI protocol
  • Converter Architecture: Sigma-Delta topology
  • Internal Reference: Integrated voltage reference
  • Supply Voltages: 5V analog and 5V digital
  • Operating Temperature: -40°C to 105°C range
  • Package: 16-SOIC form factor with identical pin configuration
  • Compliance: ROHS3 and REACH standards

The AMC1203DW meets all specified parameters and qualifies as a parametric equivalent substitute for the AMC1203BDW.

Parameter Comparison

Parameter AMC1203BDW AMC1203DW
Manufacturer Texas Instruments Texas Instruments
Number of Bits 16 16
Sampling Rate (Per Second) 40k 40k
Number of Inputs 1 1
Input Type Differential Differential
Data Interface SPI SPI
Architecture Sigma-Delta Sigma-Delta
Reference Type Internal Internal
Voltage - Supply, Analog 5V 5V
Voltage - Supply, Digital 5V 5V
Operating Temperature Range -40°C ~ 105°C -40°C ~ 105°C
Package / Case 16-SOIC (0.295", 7.50mm Width) 16-SOIC (0.295", 7.50mm Width)
Mounting Type Surface Mount Surface Mount
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours)

Engineering Selection Recommendations

Both the AMC1203BDW and AMC1203DW carry Last Time Buy product status from Texas Instruments. Selection between these components should be based on current inventory availability and supply chain requirements rather than technical differentiation, as both devices are electrically and mechanically identical.

The AMC1203BDW currently maintains 1108 pieces in stock, while the AMC1203DW has 644 pieces available. Both components meet ROHS3 compliance and REACH standards, ensuring regulatory compatibility for industrial and commercial applications.

For new designs or long-term production planning, component selection should prioritize availability and lead time considerations given the Last Time Buy status of both variants.

Frequently Asked Questions (FAQ)

Q: Are the AMC1203BDW and AMC1203DW pin-compatible?

A: Yes. Both devices use the 16-SOIC package with identical pin configuration and electrical characteristics. Direct substitution on PCB layouts is supported without modification.

Q: What does Last Time Buy status mean for these components?

A: Last Time Buy indicates that Texas Instruments has announced end-of-life for these products. Existing inventory represents the final production run. Long-term availability cannot be guaranteed beyond current stock levels.

Q: Can these devices be used interchangeably in existing designs?

A: Yes. The AMC1203BDW and AMC1203DW are parametric equivalents with identical electrical specifications, supply requirements, and operating ranges. No design changes are required for substitution.

Q: What are the storage and handling requirements for these components?

A: Both devices have Moisture Sensitivity Level 3 (MSL 3), requiring storage in controlled humidity environments (≤60% RH) for up to 168 hours after packaging. Standard ESD precautions apply during handling and installation.

Q: Are there any compliance differences between the two part numbers?

A: No. Both the AMC1203BDW and AMC1203DW maintain identical ROHS3 compliance and REACH status, ensuring regulatory equivalence for all applications.

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