DAC7728SRTQR Equivalent & Substitute Parts

Part Overview

The DAC7728SRTQR is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring multiple independent voltage outputs. This device integrates 8 D/A converters in a 56-QFN surface mount package with an exposed pad, delivering buffered voltage outputs with external reference capability. The part is currently in active production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when parametric specifications, electrical performance, package compatibility, and compliance certifications remain identical across manufacturing lots or variant designations.

Substiute Parts

DAC7728SRTQR

Texas InstrumentsIn Stock: 1011DAC7728SRTQR Datasheet

Current PartRFQ

DAC7728SRTQT

Texas InstrumentsIn Stock: 758DAC7728SRTQT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The DAC7728SRTQR and DAC7728SRTQT are parametric equivalents within the DAC7728 base product family. Substitution is valid based on the following criteria:

• Identical 12-bit resolution and 8-channel D/A converter configuration
• Matching 15µs settling time and buffered voltage output architecture
• Identical external reference type and parallel data interface
• Equivalent analog supply range (9V ~ 3.6V, ±4.5V ~ 18V) and digital supply range (2.7V ~ 5.5V)
• Matching INL/DNL specifications (±1 LSB maximum)
• Identical 56-QFN (8x8) surface mount package with exposed pad
• Equivalent operating temperature range (-40°C ~ 105°C)
• Matching RoHS3 compliance and MSL 3 rating

The suffix designations (R vs. T) indicate different tape and reel configurations or manufacturing date codes within the same product specification, not functional or electrical differences.

Parameter Comparison

Engineering Selection Recommendations

Both DAC7728SRTQR and DAC7728SRTQT are active production parts from Texas Instruments with identical electrical specifications and package configurations. Selection between these parts is based on availability and supply chain requirements rather than functional differences. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting regulatory requirements for industrial and commercial applications. The MSL 3 rating (168 hours) applies to both variants, requiring standard moisture control during storage and handling. PCB layout, thermal management, and reference circuit design remain unchanged between these equivalent parts.

Frequently Asked Questions (FAQ)

Q: Can DAC7728SRTQT be used as a direct replacement for DAC7728SRTQR in production?

A: Yes. Both parts share identical electrical specifications, package geometry, pin configuration, and performance characteristics. No circuit modifications or PCB redesign is required for substitution.

Q: What is the difference between the R and T suffixes in the part numbers?

A: The suffix designations indicate different tape and reel configurations or manufacturing date codes within the same DAC7728 product specification. No functional or electrical differences exist between these variants.

Q: Are there any thermal or power dissipation differences between these parts?

A: No. Both parts operate within the same temperature range (-40°C ~ 105°C) and share identical supply voltage specifications. Thermal design and power budget calculations remain unchanged.

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

A: Yes. Both DAC7728SRTQR and DAC7728SRTQT use external reference type architecture. Reference circuit design, component selection, and PCB layout are identical for both parts.

Q: Are there any compliance or certification differences?

A: No. Both parts maintain identical RoHS3 compliance, REACH unaffected status, and MSL 3 (168 hours) moisture sensitivity rating. No additional certifications or compliance documentation is required when substituting between these parts.

Q: Can these parts be mixed in the same production batch?

A: Yes. Since both parts are parametrically equivalent with identical specifications and compliance certifications, they can be used interchangeably within the same design and production environment.