TLC7226CDWR Equivalent & Substitute Parts

Part Overview

The TLC7226CDWR is an 8-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for data acquisition applications requiring four independent voltage output channels. This component features an R-2R architecture with external reference capability and is housed in a 20-SOIC surface mount package. The part is currently in active production status with substantial inventory availability (19,739 units in stock). Equivalent and substitute parts are identified based on matching electrical specifications, package compatibility, and functional equivalence to support procurement flexibility and supply chain continuity.

Substiute Parts

TLC7226CDWR

Texas InstrumentsIn Stock: 19849TLC7226CDWR Datasheet

Current PartRFQ

AD7226KRZ

Analog Devices Inc.In Stock: 3804AD7226KRZ Datasheet

MFR RecommendedRFQ

AD7226KRZ-REEL

Analog Devices Inc.In Stock: 5710AD7226KRZ-REEL Datasheet

MFR RecommendedRFQ

MX7226KCWP+

Analog Devices Inc./Maxim IntegratedIn Stock: 901MX7226KCWP+ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the TLC7226CDWR are qualified based on the following critical parameters that determine functional equivalence:

Core Electrical Specifications:

• 8-bit resolution with 4 independent D/A converters
• Parallel data interface with external reference capability
• Buffered voltage output configuration
• R-2R converter architecture
• 20-SOIC package footprint compatibility

Supply Voltage Compatibility: Substitutes must support the analog supply voltage range of 11.4V ~ 16.5V with negative supply capability. Digital supply requirements vary by substitute part and must be verified against system design specifications.

Performance Characteristics: Settling time, INL/DNL specifications, and operating temperature ranges are provided for each substitute to enable selection based on application requirements. Parts with faster settling times or wider temperature ranges represent enhanced performance alternatives.

Packaging and Environmental Compliance: All qualified substitutes maintain 20-SOIC surface mount packaging, ROHS3 compliance, and EAR99 export classification. Moisture sensitivity levels and packaging formats (tube or cut tape/reel) are specified for procurement and handling considerations.

Parameter Comparison

Engineering Selection Recommendations

Direct Substitution (Electrical and Thermal Equivalence): The MX7226KCWP+ provides direct substitution with matching operating temperature range (0°C ~ 70°C) and MSL rating (1 - Unlimited), ensuring compatibility with existing thermal and moisture handling procedures. This part maintains identical INL/DNL specifications and is suitable for applications with standard environmental requirements.

Enhanced Performance Substitution (Improved Specifications): The AD7226KRZ and AD7226KRZ-REEL offer improved settling time (4µs versus 20µs) and superior INL accuracy (±0.5 LSB maximum), supporting applications requiring faster conversion rates and higher precision. These parts extend the operating temperature range to -40°C ~ 85°C, enabling deployment in wider environmental conditions. The extended temperature capability requires evaluation against application thermal requirements.

Packaging and Inventory Considerations: AD7226KRZ-REEL matches the original cut tape and reel packaging format, facilitating direct integration into existing procurement and assembly workflows. AD7226KRZ is supplied in tube packaging, requiring process adaptation. MX7226KCWP+ is available in tube format with lower inventory levels (834 units) compared to alternatives.

Compliance and Regulatory Status: All substitute parts maintain ROHS3 compliance, EAR99 export classification, and REACH unaffected status, ensuring regulatory equivalence with the TLC7226CDWR.

Frequently Asked Questions (FAQ)

Q: Can AD7226KRZ be used as a direct replacement for TLC7226CDWR in existing designs? A: The AD7226KRZ is electrically compatible and functionally equivalent. However, the extended operating temperature range (-40°C ~ 85°C) and improved settling time (4µs) represent specification enhancements rather than limitations. Designs operating within the original 0°C ~ 70°C range will function identically. The MSL rating of 3 (168 hours) requires verification against moisture handling procedures if the original design utilized MSL 1 components.

Q: What is the primary difference between AD7226KRZ and AD7226KRZ-REEL? A: Both parts are electrically and functionally identical. The difference is packaging format: AD7226KRZ is supplied in tube packaging, while AD7226KRZ-REEL is supplied in cut tape and reel format. Selection depends on assembly process requirements and procurement workflow compatibility.

Q: Is MX7226KCWP+ suitable for applications requiring extended temperature operation? A: No. The MX7226KCWP+ maintains the original operating temperature range of 0°C ~ 70°C. For applications requiring extended temperature operation (-40°C ~ 85°C), the AD7226KRZ or AD7226KRZ-REEL are required.

Q: How do settling time differences affect circuit design? A: The TLC7226CDWR specifies 20µs settling time, while substitute parts (AD7226KRZ, AD7226KRZ-REEL, MX7226KCWP+) specify 4µs. Faster settling time enables higher conversion rates and reduced output transient duration. Designs based on the original 20µs specification will operate correctly with faster-settling substitutes without modification.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All qualified substitute parts (AD7226KRZ, AD7226KRZ-REEL, MX7226KCWP+) maintain ROHS3 compliance, matching the regulatory status of the TLC7226CDWR.

Q: What inventory levels are available for each substitute? A: TLC7226CDWR: 19,739 units; AD7226KRZ: 3,718 units; AD7226KRZ-REEL: 5,600 units; MX7226KCWP+: 834 units. Inventory availability should be verified at time of procurement.