DAC8871SPWG4 Equivalent & Substitute Parts

Part Overview

The DAC8871SPWG4 is a 16-bit digital-to-analog converter (DAC) manufactured by Texas Instruments, designed for data acquisition applications requiring voltage output conversion. This device features an R-2R architecture with external reference capability and SPI interface for digital control. The DAC8871SPWG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives from the active product line to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

DAC8871SPWG4

Texas InstrumentsIn Stock: 997DAC8871SPWG4 Datasheet

Current PartRFQ

DAC8871SPW

Texas InstrumentsIn Stock: 1479DAC8871SPW Datasheet

MFR RecommendedRFQ

DAC8871SBPW

Texas InstrumentsIn Stock: 1539DAC8871SBPW Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAC8871SPWG4 are identified based on electrical and mechanical parameter equivalence within the DAC8871 product family. Substitution is valid when the following criteria are met:

• Identical resolution: 16-bit conversion
• Identical converter count: 1 D/A converter per device
• Identical output configuration: Voltage - Unbuffered
• Identical interface protocol: SPI
• Identical reference architecture: External reference type
• Identical supply voltage ranges: ±14.6V ~ 19.8V (analog), 2.7V ~ 5.5V (digital)
• Identical settling time specification: 1µs (Typ)
• Identical linearity specifications: INL/DNL ±1, ±0.25 LSB
• Identical architecture: R-2R
• Identical operating temperature range: -40°C ~ 105°C
• Identical package form factor: 16-TSSOP (0.173", 4.40mm Width)
• Identical mounting technology: Surface Mount

The DAC8871SPWG4 differs from substitute parts only in packaging configuration (SPWG4 vs. SPW or SBPW designations), which reflects different tape-and-reel or tube packaging formats rather than functional or electrical differences.

Parameter Comparison

Engineering Selection Recommendations

For applications currently using the DAC8871SPWG4, the DAC8871SPW and DAC8871SBPW are direct functional equivalents. Both substitute parts maintain active product status with Texas Instruments, ensuring long-term availability and supply chain continuity.

The DAC8871SPW is the manufacturer-recommended substitute, offering identical electrical specifications and packaging form factor with tube packaging configuration. The DAC8871SBPW provides equivalent functionality with alternative packaging format.

Both substitute parts carry ROHS3 compliance and MSL 2 (1 Year) ratings, matching the original part's environmental and regulatory certifications. Selection between DAC8871SPW and DAC8871SBPW should be based on packaging requirements and inventory management practices specific to the application.

Frequently Asked Questions (FAQ)

Q: Can DAC8871SPW and DAC8871SBPW be used interchangeably with DAC8871SPWG4?

A: Yes. All three parts share identical electrical specifications, pin configurations, and functional performance. Differences exist only in packaging format (tape-and-reel vs. tube), which does not affect circuit operation or performance.

Q: What is the difference between the SPWG4, SPW, and SBPW designations?

A: These designations indicate packaging configuration. SPWG4, SPW, and SBPW all refer to the same 16-TSSOP package form factor but differ in tape-and-reel or tube delivery format. The core silicon and electrical performance are identical.

Q: Are there any pin configuration differences between these parts?

A: No. All three parts use the identical 16-pin TSSOP package with the same pin assignments and functional layout.

Q: What supply voltage ranges are supported?

A: Analog supply voltage ranges from ±14.6V to ±19.8V. Digital supply voltage ranges from 2.7V to 5.5V. All three parts support these identical ranges.

Q: Is the SPI interface protocol identical across all three parts?

A: Yes. All three parts implement the same SPI interface protocol for digital control and data transfer.

Q: What is the operating temperature range?

A: All three parts operate across the temperature range of -40°C to 105°C.

Q: Are there compliance or certification differences?

A: No. All three parts carry ROHS3 compliance and MSL 2 (1 Year) moisture sensitivity ratings.