ADS7825UG4 Equivalent & Substitute Parts

Part Overview

The ADS7825UG4 is a 16-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring simultaneous sampling of up to 4 single-ended analog inputs. The device features a successive approximation register (SAR) architecture with a 40 kSPS sampling rate and operates from a single 5V supply for both analog and digital domains. The ADS7825UG4 is discontinued at DiGi Electronics, making identification of equivalent substitute parts essential for ongoing system support and procurement planning.

Substiute Parts

ADS7825UG4

Texas InstrumentsIn Stock: 937ADS7825UG4 Datasheet

Current PartRFQ

ADS7825UB

Texas InstrumentsIn Stock: 1377ADS7825UB Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADS7825UG4 is determined by strict equivalence across the following critical parameters:

• 16-bit resolution
• 4 single-ended analog inputs
• 40 kSPS sampling rate
• SAR architecture with integrated sample-and-hold
• Dual interface support (SPI and Parallel)
• 5V single supply operation (both analog and digital)
• 28-SOIC surface mount package
• External and internal reference capability

The ADS7825UB meets all these criteria and qualifies as a parametric equivalent. Both devices share identical electrical specifications, package footprint, and functional architecture, enabling direct substitution at the component level.

Parameter Comparison

Engineering Selection Recommendations

The ADS7825UB is the direct parametric equivalent for the ADS7825UG4. Both devices are manufactured by Texas Instruments, share identical electrical and mechanical specifications, and maintain equivalent compliance certifications (ROHS3, REACH Unaffected, EAR99). The primary distinction is product lifecycle status: the ADS7825UG4 is discontinued, while the ADS7825UB remains available as a Last Time Buy offering. For new designs or system replacements, the ADS7825UB should be selected to ensure continued component availability and supply chain continuity. Both parts are pin-compatible and require no circuit modifications for substitution.

Frequently Asked Questions (FAQ)

Q: Can the ADS7825UB be used as a direct replacement for the ADS7825UG4?

A: Yes. The ADS7825UB is a parametric equivalent with identical resolution, input configuration, sampling rate, supply voltage, package, and interface specifications. No circuit modifications are required.

Q: Are there any differences in pin configuration between these parts?

A: No. Both the ADS7825UG4 and ADS7825UB use the 28-SOIC package with identical pinout and signal assignments.

Q: What is the difference between the UG4 and UB suffixes?

A: The suffix designates the product lifecycle and packaging variant within the ADS7825 base product family. Both variants meet the same electrical and mechanical specifications.

Q: Is the ADS7825UB still available for procurement?

A: The ADS7825UB is designated as Last Time Buy, indicating limited availability. Procurement should be prioritized accordingly.

Q: Do both parts require the same external reference circuit?

A: Yes. Both devices support external and internal reference configurations with identical electrical requirements and operating parameters.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain equivalent RoHS3 compliance, REACH status, and export classification (EAR99).