DAC7611UB Equivalent & Substitute Parts

Part Overview

The DAC7611UB is a 12-bit digital-to-analog converter manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This component features a buffered voltage output, internal reference, and SPI data interface, operating across the industrial temperature range of -40°C to 85°C. The part is currently in active production status with 5,261 units in stock.

Substitute parts become necessary when the original DAC7611UB is unavailable, when alternative packaging formats are required for manufacturing processes, or when design specifications allow for compatible alternatives with different electrical characteristics. The parts listed below maintain functional equivalence while offering variations in settling time, supply voltage ranges, accuracy specifications, and packaging options.

Substiute Parts

DAC7611UB

Texas InstrumentsIn Stock: 5346DAC7611UB Datasheet

Current PartRFQ

AD8300ARZ

Analog Devices Inc.In Stock: 2006AD8300ARZ Datasheet

MFR RecommendedRFQ

AD8300ARZ-REEL

Analog Devices Inc.In Stock: 2388AD8300ARZ-REEL Datasheet

MFR RecommendedRFQ

DAC7611PB

Texas InstrumentsIn Stock: 3437DAC7611PB Datasheet

MFR RecommendedRFQ

DAC8512FSZ

Analog Devices Inc.In Stock: 4466DAC8512FSZ Datasheet

MFR RecommendedRFQ

DAC8512FSZ-REEL7

Analog Devices Inc.In Stock: 2023DAC8512FSZ-REEL7 Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DAC7611UB is determined by the following critical parameters:

Core Functional Requirements:

• 12-bit resolution (Number of Bits = 12)
• Single D/A converter (Number of D/A Converters = 1)
• Buffered voltage output configuration
• Internal reference architecture
• R-2R converter architecture
• Operating temperature range: -40°C to 85°C minimum
• SPI or SPI-compatible data interface

Packaging Considerations:

• Surface mount packages (8-SOIC) are directly interchangeable
• Through-hole packages (8-DIP) require PCB redesign but maintain electrical equivalence
• Tape & Reel and Cut Tape packaging variations are logistics options for the same electrical component

Electrical Flexibility:

• Supply voltage ranges that encompass 5V operation allow substitution
• Settling time variations are acceptable provided system timing requirements are met
• INL/DNL specifications may vary; stricter tolerances (lower values) are acceptable substitutes

The substitute parts listed below meet these criteria across three groupings: Analog Devices surface mount variants (AD8300ARZ series), Texas Instruments through-hole variant (DAC7611PB), and Analog Devices alternative surface mount variant (DAC8512FSZ series).

Parameter Comparison

Engineering Selection Recommendations

For Direct Surface Mount Replacement (8-SOIC Package):

AD8300ARZ and AD8300ARZ-REEL are functionally equivalent substitutes with active product status. Both offer wider supply voltage ranges (2.7V to 5.5V) compared to the fixed 5V requirement of the DAC7611UB. The AD8300ARZ-REEL variant provides identical electrical specifications in Tape & Reel packaging for automated assembly processes. Settling time increases from 7µs to 14µs; verify this meets system timing requirements before selection.

DAC8512FSZ and DAC8512FSZ-REEL7 maintain the same 8-SOIC package footprint with active product status. These parts accept wider supply voltage ranges and offer DSP interface capability in addition to SPI. Settling time extends to 16µs with relaxed accuracy specifications (±0.75 LSB INL/DNL versus ±0.25 LSB). Select this variant only when the application tolerates increased settling time and reduced accuracy.

For Through-Hole Replacement (8-DIP Package):

DAC7611PB is a Texas Instruments part sharing the same base product number and electrical specifications as the DAC7611UB. This component is marked "Not For New Designs," indicating it remains available for legacy system support but should not be selected for new development. PCB redesign is required to accommodate the 8-DIP through-hole package format.

Compliance and Certification:

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the regulatory posture of the original DAC7611UB. Moisture sensitivity levels vary: the DAC7611UB specifies MSL 3 (168 hours), while Analog Devices variants specify MSL 1 (unlimited), representing improved handling characteristics.

Frequently Asked Questions (FAQ)

Q: Can I use AD8300ARZ as a direct replacement for DAC7611UB without circuit modifications?

A: Yes, for surface mount applications. Both parts use the 8-SOIC package with identical pinouts and SPI interface. The AD8300ARZ operates across a wider supply voltage range (2.7V to 5.5V) and will function correctly in circuits designed for 5V operation. Verify that the increased settling time (14µs versus 7µs) does not violate system timing requirements.

Q: What is the difference between AD8300ARZ and AD8300ARZ-REEL?

A: These parts are electrically identical. The difference is packaging format: AD8300ARZ ships in tube packaging for manual handling, while AD8300ARZ-REEL comes in Tape & Reel format optimized for automated pick-and-place assembly. Select based on manufacturing process requirements.

Q: Why does DAC7611PB show "Not For New Designs" status?

A: This designation indicates the part remains in production for legacy system support but is not recommended for new product development. Texas Instruments maintains this part for customers with existing designs but encourages migration to active alternatives. The DAC7611UB (surface mount) is the recommended active variant.

Q: Can I substitute DAC8512FSZ for DAC7611UB if my application has relaxed accuracy requirements?

A: Yes, provided your system can tolerate the increased settling time (16µs versus 7µs) and reduced accuracy (±0.75 LSB INL/DNL versus ±0.25 LSB). Both parts maintain the same 12-bit resolution, R-2R architecture, and 8-SOIC package. Verify timing and accuracy specifications against your application requirements before selection.

Q: Are all substitute parts RoHS3 compliant?

A: Yes. All listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental and regulatory requirements of the original DAC7611UB.

Q: What does MSL rating mean, and why do the substitute parts have different ratings?

A: Moisture Sensitivity Level (MSL) indicates how long a component can be stored in ambient conditions before requiring baking prior to reflow soldering. DAC7611UB specifies MSL 3 (168 hours), while Analog Devices variants specify MSL 1 (unlimited). Lower MSL ratings provide greater handling flexibility and reduced risk of moisture-induced defects during assembly.

Q: Can I use DAC7611PB in a surface mount design?

A: No. DAC7611PB uses an 8-DIP through-hole package, requiring PCB redesign and different assembly processes. It is not suitable for surface mount applications without significant board layout changes.