DAC7611PB Equivalent & Substitute Parts

Part Overview

The DAC7611PB is a 12-bit digital-to-analog converter manufactured by Texas Instruments, housed in an 8-DIP through-hole package. This device features a single voltage-buffered output with SPI interface and internal reference, operating from 5V supply rails across the industrial temperature range of -40°C to 85°C. The DAC7611PB is classified as "Not For New Designs," making identification of functionally equivalent alternatives essential for ongoing production support and design flexibility.

Substiute Parts

DAC7611PB

Texas InstrumentsIn Stock: 3437DAC7611PB Datasheet

Current PartRFQ

DAC7611UB

Texas InstrumentsIn Stock: 5346DAC7611UB Datasheet

MFR RecommendedRFQ

AD8300ANZ

Analog Devices Inc.In Stock: 1155AD8300ANZ Datasheet

MFR RecommendedRFQ

DAC8512EPZ

Analog Devices Inc.In Stock: 2253DAC8512EPZ Datasheet

MFR RecommendedRFQ

DAC8512FPZ

Analog Devices Inc.In Stock: 3134DAC8512FPZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DAC7611PB is determined by the following core parameters:

• Resolution & Converter Count: 12-bit, single D/A converter
• Output Configuration: Voltage-buffered output with no differential output requirement
• Data Interface: SPI protocol support (DSP interface is optional)
• Supply Voltage: 5V analog and digital supplies (or compatible range including 5V)
• Temperature Range: -40°C to 85°C minimum
• Package Compatibility: 8-DIP through-hole form factor (primary) or 8-SOIC surface-mount (secondary, with board redesign)
• Architecture: R-2R topology
• Compliance: ROHS3 compliant, REACH unaffected

Substitute parts are grouped into two categories:

Category 1 - Direct Package Match (8-DIP Through-Hole): DAC8512EPZ, DAC8512FPZ, AD8300ANZ. These maintain identical package form factor and mounting type, enabling direct board-level substitution without layout modification.

Category 2 - Package Variant (8-SOIC Surface-Mount): DAC7611UB. This part shares the same base product number and electrical specifications but requires PCB redesign due to surface-mount packaging.

Parameter Comparison

Engineering Selection Recommendations

For Direct Substitution (No Board Redesign Required)

DAC7611UB is the primary substitute when package form factor must remain unchanged within the through-hole category. As an active product from the same manufacturer with identical electrical specifications (12-bit resolution, 7µs settling time, ±0.25 LSB INL/DNL), it provides the highest compatibility margin. However, DAC7611UB uses 8-SOIC surface-mount packaging, requiring PCB layout modification.

For through-hole 8-DIP applications without board redesign, AD8300ANZ and DAC8512EPZ/DAC8512FPZ are functionally compatible alternatives. AD8300ANZ offers extended supply voltage range (2.7V to 5.5V) and lower moisture sensitivity (MSL 1 vs. MSL 3), though with slightly degraded INL/DNL performance (±0.5 LSB). DAC8512EPZ and DAC8512FPZ maintain 5V fixed supply requirements but offer active product status and full SPI/DSP interface support.

Compliance & Availability Considerations

All substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the original DAC7611PB regulatory profile. DAC7611UB, AD8300ANZ, DAC8512EPZ, and DAC8512FPZ are all classified as active products, ensuring long-term availability and manufacturing support compared to the DAC7611PB's "Not For New Designs" status.

Frequently Asked Questions (FAQ)

Q: Can DAC7611UB replace DAC7611PB directly on the PCB?

A: DAC7611UB shares identical electrical specifications and base product number but uses 8-SOIC surface-mount packaging instead of 8-DIP through-hole. Direct board-level substitution is not possible without PCB redesign and component footprint modification.

Q: What is the key difference between AD8300ANZ and DAC8512EPZ?

A: Both are 12-bit DACs in 8-DIP through-hole packages with SPI interface. AD8300ANZ supports extended supply voltage range (2.7V to 5.5V) and has lower moisture sensitivity, but exhibits higher INL/DNL (±0.5 LSB). DAC8512EPZ maintains fixed 5V supply and tighter INL/DNL (±0.25 LSB) but requires exact 5V operation.

Q: Are settling time differences significant for substitution?

A: The DAC7611PB specifies 7µs typical settling time. Substitute parts range from 7µs (DAC7611UB) to 16µs (DAC8512EPZ/FPZ). Slower settling time may impact applications requiring high-speed analog signal updates. Verify application timing requirements before selection.

Q: Do all substitutes support SPI interface?

A: Yes. All listed substitutes support SPI protocol. AD8300ANZ, DAC8512EPZ, and DAC8512FPZ additionally support DSP interface, providing expanded communication flexibility.

Q: What is the moisture sensitivity implication for long-term storage?

A: DAC7611PB and DAC7611UB specify MSL 3 (168 hours), requiring controlled humidity storage. AD8300ANZ, DAC8512EPZ, and DAC8512FPZ specify MSL 1 (unlimited), eliminating moisture-related storage constraints and reducing handling complexity.

Q: Can I use DAC8512FPZ if my application requires ±0.25 LSB INL/DNL?

A: No. DAC8512FPZ specifies ±0.75 LSB INL/DNL, exceeding the DAC7611PB's ±0.25 LSB specification. For applications requiring ±0.25 LSB accuracy, use DAC7611UB or DAC8512EPZ.