DAC7822IRTAR Equivalent & Substitute Parts

Part Overview

The DAC7822IRTAR is a 12-bit digital-to-analog converter manufactured by Texas Instruments, designed for data acquisition applications requiring dual-channel current output conversion. This component features an R-2R architecture with external reference capability and operates across a wide supply voltage range of 2.5V to 5.5V for both analog and digital domains. The device is actively produced and maintains full RoHS3 compliance with REACH unaffected status.

Substitute parts are identified when packaging or supply chain considerations necessitate alternative sourcing while maintaining identical electrical performance and mechanical compatibility.

Substiute Parts

DAC7822IRTAR

Texas InstrumentsIn Stock: 781DAC7822IRTAR Datasheet

Current PartRFQ

DAC7822IRTAT

Texas InstrumentsIn Stock: 1402DAC7822IRTAT Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The DAC7822IRTAR and its identified substitute are functionally equivalent 12-bit dual-channel digital-to-analog converters from Texas Instruments sharing identical electrical specifications. Substitution eligibility is determined by the following critical parameters:

• 12-bit resolution with 2 independent D/A converters
• 200ns settling time performance
• Current-mode unbuffered output with differential capability
• Parallel data interface with external reference configuration
• Identical supply voltage ranges (2.5V ~ 5.5V analog and digital)
• ±1 LSB maximum INL/DNL linearity specification
• R-2R converter architecture
• 40-WFQFN (6x6) package with exposed pad
• Surface mount configuration
• Operating temperature range -40°C to 125°C
• ROHS3 compliance and REACH unaffected status

The primary distinction between the main part and substitute relates to packaging format (tape & reel versus cut tape), which does not affect electrical performance or circuit-level compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both DAC7822IRTAR and DAC7822IRTAT are active products from Texas Instruments with identical electrical and mechanical specifications. Selection between these parts is determined by packaging and supply chain requirements rather than technical performance criteria.

The DAC7822IRTAR in tape & reel format is suitable for high-volume automated assembly operations where continuous reel feeding optimizes production throughput. The DAC7822IRTAT in cut tape format accommodates lower-volume applications, prototype development, or situations where individual component handling is preferred.

Both parts maintain full ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across industrial and commercial applications. Moisture sensitivity level 2 with one-year shelf life applies uniformly to both packaging variants.

Frequently Asked Questions (FAQ)

Q: Can DAC7822IRTAT replace DAC7822IRTAR in production assembly?

A: Yes. Both parts are electrically and mechanically identical. The substitution is valid from a circuit design perspective. The difference is packaging format: tape & reel versus cut tape. Assembly equipment compatibility should be verified based on your specific production line configuration.

Q: Are there any performance differences between these two part numbers?

A: No. Both parts share identical electrical specifications including 12-bit resolution, 200ns settling time, ±1 LSB linearity, and operating temperature range. Performance in circuit applications is equivalent.

Q: What is the significance of the packaging difference?

A: Tape & reel (TR) packaging is optimized for high-speed automated pick-and-place assembly with continuous component feeding. Cut tape (CT) packaging provides individual component access suitable for lower-volume production, manual assembly, or component-level testing and evaluation.

Q: Are both parts suitable for the same PCB layout and footprint?

A: Yes. Both parts use the identical 40-WFQFN (6x6) package with exposed pad. PCB footprint, solder pad geometry, and thermal management considerations are identical.

Q: Do both parts have the same shelf life and storage requirements?

A: Yes. Both parts carry moisture sensitivity level 2 with a one-year shelf life. Storage and handling requirements are identical.

Q: Which part should I specify for a new design?

A: Either part is acceptable for new designs. Specify based on your manufacturing process: DAC7822IRTAR for automated high-volume production with tape & reel capability, or DAC7822IRTAT for lower-volume or manual assembly scenarios.