ADS4229IRGC25 Equivalent & Substitute Parts

Part Overview

The ADS4229IRGC25 is a 12-bit pipelined analog-to-digital converter manufactured by Texas Instruments, designed for data acquisition applications requiring simultaneous dual-channel sampling at 250 MSPS. This component features differential inputs, internal voltage reference, and operates across the industrial temperature range of -40°C to 85°C in a 64-VQFN surface mount package.

The ADS4229IRGC25 carries an obsolete product status. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term production requirements for systems utilizing this data acquisition architecture.

Key Parameters

Parameter	Value
Resolution	12 Bit
Sampling Rate	250 MSPS
Number of Inputs	2
Input Type	Differential
Architecture	Pipelined
Data Interface	LVDS - Parallel, Parallel
Reference Type	Internal
Analog Supply Voltage	1.7V ~ 1.9V
Digital Supply Voltage	1.7V ~ 1.9V
Operating Temperature	-40°C ~ 85°C
Package	64-VQFN (9x9) Exposed Pad
Mounting Type	Surface Mount
Product Status	Obsolete

Substitute Part Grouping Explanation

Substitute parts for the ADS4229IRGC25 are qualified based on strict electrical and mechanical parameter matching within the data acquisition converter category. The substitution logic is organized into two categories:

Manufacturer Recommended Substitute (MFR Recommended): The ADS62P29IRGCT maintains identical core functionality—12-bit resolution, 250 MSPS sampling rate, dual differential inputs, pipelined architecture, and 64-VQFN packaging. This part differs in reference type capability (supports both external and internal references versus internal-only) and analog supply voltage range (3.15V ~ 3.6V versus 1.7V ~ 1.9V). Product status is active, ensuring ongoing availability and support.

Parametric Equivalents: The ADS4229IRGCR and ADS4229IRGCT are direct parametric matches to the ADS4229IRGC25, sharing identical electrical specifications including 12-bit resolution, 250 MSPS rate, dual differential inputs, internal reference type, and 1.7V ~ 1.9V supply voltages. Both maintain the 64-VQFN package footprint and surface mount configuration. The ADS4229IRGCT includes tape and reel packaging, while the ADS4229IRGCR is supplied in standard packaging. Both parts carry active product status.

Parameter Comparison

Parameter	ADS4229IRGC25 (Main)	ADS62P29IRGCT (MFR Recommended)	ADS4229IRGCR (Parametric Equivalent)	ADS4229IRGCT (Parametric Equivalent)
Resolution	12 Bit	12 Bit	12 Bit	12 Bit
Sampling Rate	250 MSPS	250 MSPS	250 MSPS	250 MSPS
Number of Inputs	2	2	2	2
Input Type	Differential	Differential	Differential	Differential
Architecture	Pipelined	Pipelined	Pipelined	Pipelined
Data Interface	LVDS - Parallel, Parallel	LVDS - Parallel, Parallel	LVDS - Parallel, Parallel	LVDS - Parallel, Parallel
Reference Type	Internal	External, Internal	Internal	Internal
Analog Supply Voltage	1.7V ~ 1.9V	3.15V ~ 3.6V	1.7V ~ 1.9V	1.7V ~ 1.9V
Digital Supply Voltage	1.7V ~ 1.9V	1.7V ~ 1.9V	1.7V ~ 1.9V	1.7V ~ 1.9V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	64-VQFN (9x9) Exposed Pad	64-VQFN (9x9) Exposed Pad	64-VQFN (9x9) Exposed Pad	64-VQFN (9x9) Exposed Pad
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
MSL Rating	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

For Direct Replacement (Identical Electrical Specifications): The ADS4229IRGCR and ADS4229IRGCT are direct substitutes for the ADS4229IRGC25. Both parts maintain identical electrical parameters, package footprint, and thermal characteristics. Selection between these two depends on packaging requirements: ADS4229IRGCR for standard packaging or ADS4229IRGCT for tape and reel supply. Both carry active product status, ensuring long-term availability and manufacturing support. All three parts maintain ROHS3 compliance and identical MSL ratings.

For Supply Chain Continuity: The ADS62P29IRGCT is designated as the manufacturer-recommended substitute. This part is suitable when analog supply voltage can be adjusted to the 3.15V ~ 3.6V range. The ADS62P29IRGCT offers the additional capability of external reference selection, providing design flexibility for applications requiring reference voltage optimization. Active product status and equivalent compliance certifications support production continuity.

Compliance and Regulatory Considerations: All substitute parts maintain ROHS3 compliance, REACH unaffected status, and identical MSL ratings. No regulatory or environmental compliance barriers exist for substitution. Selection should be based on supply availability, packaging format requirements, and analog supply voltage compatibility within the system design.

Frequently Asked Questions (FAQ)

Q: Can the ADS4229IRGCR directly replace the ADS4229IRGC25 without circuit modifications?

A: Yes. The ADS4229IRGCR is a parametric equivalent with identical electrical specifications, supply voltage ranges, package footprint, and thermal operating range. No circuit modifications are required for direct substitution.

Q: What is the difference between ADS4229IRGCR and ADS4229IRGCT?

A: Both parts are parametric equivalents with identical electrical specifications. The primary difference is packaging format: ADS4229IRGCR is supplied in standard packaging, while ADS4229IRGCT is supplied in tape and reel format. Selection depends on assembly process requirements and inventory management preferences.

Q: Why is the ADS62P29IRGCT listed as a manufacturer-recommended substitute if it has different supply voltage specifications?

A: The ADS62P29IRGCT maintains all core functional parameters—12-bit resolution, 250 MSPS sampling rate, dual differential inputs, pipelined architecture, and identical package footprint. The analog supply voltage difference (3.15V ~ 3.6V versus 1.7V ~ 1.9V) requires power supply circuit adjustment but does not affect data acquisition performance. This part is recommended when analog supply voltage can be accommodated within system design constraints.

Q: Are all substitute parts RoHS compliant?

A: Yes. The ADS4229IRGC25 and all listed substitute parts (ADS62P29IRGCT, ADS4229IRGCR, ADS4229IRGCT) are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: What is the MSL rating for these components, and what does it mean for storage and handling?

A: All parts carry MSL rating 3 with a 168-hour floor life. This indicates the component can be exposed to ambient conditions (typically 30°C / 85% RH) for up to 168 hours after moisture barrier bag opening before soldering. Proper storage in moisture-controlled environments and adherence to IPC-A-610 handling procedures is required.

Q: Can the ADS62P29IRGCT be used in applications currently designed for the ADS4229IRGC25?

A: Functional compatibility is confirmed for all core data acquisition parameters. However, the analog supply voltage range difference (3.15V ~ 3.6V versus 1.7V ~ 1.9V) requires verification that system power supply architecture can accommodate this specification. If analog supply voltage adjustment is feasible, the ADS62P29IRGCT provides equivalent performance with the added benefit of external reference capability.

Q: What is the current inventory status for substitute parts?

A: ADS4229IRGCR has 2252 units in stock, ADS4229IRGCT has 1324 units in stock, and ADS62P29IRGCT has 1658 units in stock. All parts are available as new original components.

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