ADS574KP Equivalent & Substitute Parts

Part Overview

The ADS574KP is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Texas Instruments, featuring a single-ended input with SAR (Successive Approximation Register) architecture and a 40 kHz sampling rate. The device operates with external or internal reference voltage and is housed in a 28-pin DIP package suitable for through-hole mounting.

The ADS574KP is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure component availability, and support long-term production requirements for legacy systems or new designs requiring this functional specification.

Substiute Parts

ADS574KP

Texas InstrumentsIn Stock: 1561ADS574KP Datasheet

Current PartRFQ

MX574AKN+

Analog Devices Inc./Maxim IntegratedIn Stock: 2293MX574AKN+ Datasheet

MFR RecommendedRFQ

MX674AJN+

Analog Devices Inc./Maxim IntegratedIn Stock: 2342MX674AJN+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADS574KP are identified based on strict electrical and mechanical compatibility criteria. The following parameters determine substitution eligibility:

Critical Parameters (Must Match):

• Resolution: 12 bits
• Number of Inputs: 1
• Input Type: Single Ended
• Architecture: SAR
• Data Interface: Parallel
• Package Type: 28-DIP
• Mounting Type: Through Hole
• Operating Temperature Range: 0°C ~ 70°C

Allowable Variations:

• Sampling Rate: May exceed 40 kHz (backward compatible)
• Analog Supply Voltage Range: May differ if within functional operating envelope
• Moisture Sensitivity Level: May vary
• Product Status: Active or Obsolete

The identified substitute MX574AKN+ maintains identical core specifications with improved supply voltage range and lower moisture sensitivity. The MX674AJN+ offers higher sampling rate (66 kHz) while maintaining all other critical parameters.

Parameter Comparison

Engineering Selection Recommendations

MX574AKN+ (Primary Substitute): This part is the recommended substitute for new designs and production continuity. It maintains identical sampling rate and resolution specifications while offering improved moisture sensitivity characteristics (MSL 1 vs. MSL 3). The part is currently in active production status, ensuring long-term availability. Both parts are ROHS3 compliant and REACH unaffected. The analog supply voltage range differs but remains within acceptable operating parameters for standard 5V and dual-supply applications.

MX674AJN+ (Alternative Substitute): This part provides higher sampling rate capability (66 kHz vs. 40 kHz) while maintaining all other critical electrical and mechanical specifications. It is suitable for applications requiring faster conversion rates. However, product status is obsolete, which may impact long-term availability. This part is recommended only when higher sampling rate is a design requirement.

Frequently Asked Questions (FAQ)

Q: Can MX574AKN+ be used as a direct replacement for ADS574KP? A: Yes. Both parts share identical resolution (12 bits), sampling rate (40 kHz), input configuration (single-ended), architecture (SAR), and package type (28-DIP). The analog supply voltage range differs, but both support standard 5V and dual-supply operation. Verify your specific supply voltage requirements against the datasheet specifications.

Q: What is the difference between MX574AKN+ and MX674AJN+? A: The primary difference is sampling rate. MX674AJN+ operates at 66 kHz compared to 40 kHz for MX574AKN+. All other electrical and mechanical parameters are identical. Select MX674AJN+ only if your application requires the higher sampling rate.

Q: Are there any package or pinout differences between these parts? A: No. All three parts use the 28-DIP package with identical 0.600" (15.24mm) body dimensions and through-hole mounting. Pinout compatibility must be verified against individual datasheets, but package footprint and mounting method are identical.

Q: What does the obsolete status mean for ADS574KP and MX674AJN+? A: Obsolete status indicates the manufacturer has discontinued production. MX574AKN+ is in active production, making it the preferred choice for new designs and long-term supply assurance. Existing inventory of obsolete parts may still be available through authorized distributors.

Q: Are all three parts RoHS compliant? A: Yes. ADS574KP, MX574AKN+, and MX674AJN+ are all ROHS3 compliant and REACH unaffected, meeting environmental and regulatory requirements for industrial and commercial applications.

Q: What is the significance of the MSL (Moisture Sensitivity Level) difference? A: MX574AKN+ and MX674AJN+ have MSL 1 (unlimited shelf life), while ADS574KP has MSL 3 (168-hour limit). Lower MSL ratings indicate better moisture resistance and longer shelf life without special storage conditions. This is advantageous for inventory management and long-term component storage.