ADS1606IPAPR Equivalent & Substitute Parts

Part Overview

The ADS1606IPAPR is a 16-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for single-channel differential input data acquisition applications. This component features a Sigma-Delta architecture with a 5 MHz sampling rate and operates with dual supply voltages (5V analog, 2.7V–3.3V digital). The part is packaged in a 64-pin PowerTQFP surface mount configuration.

The ADS1606IPAPR has reached obsolete product status. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this ADC.

Substiute Parts

ADS1606IPAPR
Texas InstrumentsIn Stock: 2154ADS1606IPAPR Datasheet
ADS1606IPAPR
Current Part
ADS1606IPAPT
Texas InstrumentsIn Stock: 1056ADS1606IPAPT Datasheet
ADS1606IPAPT
Direct
ADS1605IPAPR
Texas InstrumentsIn Stock: 3445ADS1605IPAPR Datasheet
ADS1605IPAPR
Parametric Equivalent
ADS1605IPAPT
Texas InstrumentsIn Stock: 3358ADS1605IPAPT Datasheet
ADS1605IPAPT
Parametric Equivalent

Key Parameters

Parameter Value
Resolution (Bits) 16
Sampling Rate 5 MHz
Number of Inputs 1
Input Type Differential
Architecture Sigma-Delta
Data Interface Parallel
Reference Type External, Internal
Voltage Supply (Analog) 5V
Voltage Supply (Digital) 2.7V – 3.3V
Operating Temperature Range –40°C to +85°C
Package Type 64-PowerTQFP (10×10 mm)
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level 3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the ADS1606IPAPR are identified based on strict electrical and mechanical parameter equivalence. The following criteria determine substitutability:

Primary Equivalence Criteria:

  • Resolution: 16 bits
  • Sampling Rate: 5 MHz
  • Input Configuration: Single differential input
  • Architecture: Sigma-Delta
  • Data Interface: Parallel
  • Supply Voltages: 5V analog, 2.7V–3.3V digital
  • Operating Temperature: –40°C to +85°C
  • Package: 64-PowerTQFP (10×10 mm)
  • Compliance: ROHS3, REACH Unaffected

Substitution Categories:

  1. Direct Packaging Equivalent (ADS1606IPAPT): Identical electrical specifications and package type; differs only in packaging format (Tape & Reel vs. Tube).

  2. Parametric Equivalents (ADS1605IPAPR, ADS1605IPAPT): Functionally equivalent across all critical electrical parameters and package specifications; base product number differs (ADS1605 vs. ADS1606), indicating minor design revision or variant designation by the manufacturer.

Parameter Comparison

Parameter ADS1606IPAPR (Main) ADS1606IPAPT ADS1605IPAPR ADS1605IPAPT
Manufacturer Texas Instruments Texas Instruments Texas Instruments Texas Instruments
Resolution (Bits) 16 16 16 16
Sampling Rate (MHz) 5 5 5 5
Number of Inputs 1 1 1 1
Input Type Differential Differential Differential Differential
Architecture Sigma-Delta Sigma-Delta Sigma-Delta Sigma-Delta
Data Interface Parallel Parallel Parallel Parallel
Reference Type External, Internal External, Internal External, Internal External, Internal
Voltage Supply (Analog) 5V 5V 5V 5V
Voltage Supply (Digital) 2.7V – 3.3V 2.7V – 3.3V 2.7V – 3.3V 2.7V – 3.3V
Operating Temperature –40°C to +85°C –40°C to +85°C –40°C to +85°C –40°C to +85°C
Package / Case 64-PowerTQFP 64-PowerTQFP 64-PowerTQFP 64-PowerTQFP
Supplier Device Package 64-HTQFP (10×10) 64-HTQFP (10×10) 64-HTQFP (10×10) 64-HTQFP (10×10)
Mounting Type Surface Mount Surface Mount Surface Mount Surface Mount
Product Status Obsolete Active Active Active
RoHS Status ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 3 (168 Hours) 3 (168 Hours) 3 (168 Hours) 3 (168 Hours)
REACH Status REACH Unaffected REACH Unaffected REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

For Active Production and New Designs:

The ADS1605IPAPR and ADS1605IPAPT are the preferred substitutes for the obsolete ADS1606IPAPR. Both ADS1605 variants maintain active product status with Texas Instruments, ensuring long-term availability and continued manufacturer support. All electrical and mechanical parameters remain identical to the original part.

Packaging Considerations:

  • ADS1606IPAPT / ADS1605IPAPT: Select these variants if Tape & Reel or Cut Tape & Digi-Reel packaging is required for automated assembly processes.
  • ADS1606IPAPR / ADS1605IPAPR: Select these variants if tube packaging is acceptable for lower-volume or manual assembly operations.

Compliance and Regulatory:

All substitute parts maintain ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements. Moisture Sensitivity Level 3 (168 hours) applies uniformly across all variants, requiring standard handling and storage protocols.

Supply Chain Strategy:

Given the obsolete status of the ADS1606IPAPR, transition to ADS1605 variants is recommended. Current inventory levels for ADS1605IPAPR (3400 pcs) and ADS1605IPAPT (3300 pcs) provide adequate supply for ongoing requirements.

Frequently Asked Questions (FAQ)

Q: Can the ADS1605 series directly replace the ADS1606 series in existing designs?

A: Yes. The ADS1605IPAPR and ADS1605IPAPT are parametric equivalents to the ADS1606IPAPR across all critical electrical specifications, package dimensions, and pin configurations. No circuit modifications are required for direct substitution.

Q: What is the difference between ADS1606IPAPT and ADS1605IPAPT?

A: Both parts are functionally identical. The primary difference is the base product number designation (ADS1606 vs. ADS1605), which represents a manufacturer variant or design revision. Electrical performance, package type, and all operational parameters are equivalent.

Q: Does packaging format affect electrical performance?

A: No. Packaging format (Tube, Tape & Reel, or Cut Tape & Digi-Reel) does not affect electrical performance or functional characteristics. Selection should be based on assembly process requirements and handling procedures.

Q: Are there any lead time or availability differences between substitute parts?

A: The ADS1605 variants (Active status) have higher current inventory levels compared to the obsolete ADS1606IPAPR. For new procurement, ADS1605 parts are recommended to ensure supply continuity.

Q: What handling precautions apply to these parts?

A: All variants carry Moisture Sensitivity Level 3 (168 hours). Standard ESD protection and dry storage conditions are required. Parts should be stored in sealed packaging with desiccant and used within 168 hours of opening if not stored in controlled humidity environments.

Q: Are there any differences in operating temperature ranges?

A: No. All substitute parts operate across the identical temperature range of –40°C to +85°C, ensuring compatibility in the same thermal environments.

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