ADS774HIBDW Equivalent & Substitute Parts

Part Overview

The ADS774HIBDW is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for single-ended input data acquisition applications. It features a Successive Approximation Register (SAR) architecture with a 125 kSPS sampling rate and operates from a 5V supply with external or internal reference voltage options. The device is housed in a 28-SOIC surface mount package.

This part carries a "Not For New Designs" product status, indicating that Texas Instruments has discontinued active development and support for this component. Organizations using this device in production or maintenance applications require identified substitute parts to ensure supply chain continuity and long-term component availability.

Substiute Parts

ADS774HIBDW

Texas InstrumentsIn Stock: 1911ADS774HIBDW Datasheet

Current PartRFQ

ADS774HIDW

Texas InstrumentsIn Stock: 1145ADS774HIDW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADS774HIBDW is determined by strict equivalence across the following critical parameters:

• Resolution & Sampling Rate: 12-bit resolution at 125 kSPS
• Input Configuration: Single-ended input with 1 ADC channel
• Data Interface: Parallel output interface
• Architecture: SAR-based conversion
• Reference Options: Support for both external and internal voltage references
• Supply Voltages: 5V analog and digital supply compatibility
• Operating Temperature: -40°C to 85°C range
• Package & Mounting: 28-SOIC surface mount package with identical pinout
• Compliance: ROHS3 compliance and MSL 2 rating

Only components matching all these parameters across the ADS774 product family are classified as direct parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

The ADS774HIDW serves as a direct parametric equivalent to the ADS774HIBDW. Both components are manufactured by Texas Instruments within the ADS774 product family and share identical electrical specifications, package geometry, and compliance certifications.

Selection between these parts should be based on:

• Inventory Availability: ADS774HIBDW has 1900 units in stock; ADS774HIDW has 1076 units in stock
• Product Status: Both components carry "Not For New Designs" designation, indicating end-of-life status from the manufacturer
• Compliance Requirements: Both meet ROHS3 compliance and REACH unaffected status, suitable for applications requiring regulatory adherence

For applications requiring active manufacturer support and ongoing design flexibility, evaluation of current-generation Texas Instruments ADC products with equivalent or superior specifications is recommended as a long-term strategy.

Frequently Asked Questions (FAQ)

Q: Can ADS774HIDW be used as a direct replacement for ADS774HIBDW?

A: Yes. Both components are parametric equivalents within the ADS774 product family. They share identical resolution, sampling rate, input configuration, supply voltages, operating temperature range, package type, and pinout. No circuit modifications are required for substitution.

Q: Are there any differences in the 28-SOIC package between these parts?

A: No. Both components use the identical 28-SOIC package with 0.295" width (7.50mm). Pin assignments, spacing, and mounting requirements are identical, ensuring direct PCB compatibility.

Q: What is the significance of the "Not For New Designs" status?

A: This designation indicates that Texas Instruments has concluded active development and support for the ADS774 series. While existing inventory remains available for purchase, the manufacturer does not recommend these components for new circuit designs. Existing applications may continue to use available stock for maintenance and production purposes.

Q: Do both parts meet the same compliance standards?

A: Yes. Both ADS774HIBDW and ADS774HIDW are ROHS3 compliant, REACH unaffected, and carry MSL 2 (1 Year) moisture sensitivity ratings. They meet identical regulatory and environmental requirements.

Q: What is the difference between external and internal reference voltage options?

A: Both components support configurable reference voltage operation. External reference mode allows connection of a precision voltage source to the reference pin for applications requiring custom reference levels. Internal reference mode uses an on-chip voltage reference. The selection is made through pin configuration during circuit design and does not affect component substitutability.