DAC8555IPWRG4 Equivalent & Substitute Parts

Part Overview

The DAC8555IPWRG4 is a 16-bit digital-to-analog converter (DAC) from Texas Instruments' microPOWER™ series, designed for data acquisition applications requiring four independent voltage output channels. This component features buffered voltage outputs, external reference capability, and operates across a wide supply voltage range of 2.7V to 5.5V for both analog and digital domains.

The DAC8555IPWRG4 is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support ongoing production requirements for systems utilizing this data acquisition component.

Substiute Parts

DAC8555IPWRG4

Texas InstrumentsIn Stock: 776DAC8555IPWRG4 Datasheet

Current PartRFQ

DAC8555IPW

Texas InstrumentsIn Stock: 2028DAC8555IPW Datasheet

MFR RecommendedRFQ

DAC8554IPWR

Texas InstrumentsIn Stock: 16288DAC8554IPWR Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the DAC8555IPWRG4 is determined by strict equivalence across the following critical parameters:

• Resolution: 16-bit conversion capability
• Channel Count: Four independent D/A converters
• Output Configuration: Buffered voltage outputs
• Data Interface: SPI and DSP protocol support
• Supply Voltage Range: 2.7V to 5.5V for both analog and digital supplies
• Accuracy Specifications: INL/DNL performance of ±4 and ±0.25 LSB
• Package Type: 16-TSSOP surface mount package
• Operating Temperature Range: -40°C to 105°C
• Compliance: ROHS3 compliance and MSL Level 1

The identified substitute parts maintain full parametric equivalence across all specified electrical and mechanical characteristics. Differences exist only in product status and packaging format, which do not affect functional compatibility in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

DAC8555IPW is the manufacturer-recommended substitute for the obsolete DAC8555IPWRG4. Both parts share identical electrical specifications and package configuration. The primary distinction is product status: DAC8555IPW maintains active production status with current availability. This part is supplied in tube packaging format.

DAC8554IPWR is a parametric equivalent offering identical functional performance and electrical characteristics. This part is supplied in cut tape and Digi-Reel® packaging formats and maintains active production status with higher inventory availability (16,183 units in stock versus 1,948 units for DAC8555IPW).

Both substitute parts maintain full ROHS3 compliance and MSL Level 1 rating, ensuring compatibility with modern manufacturing and environmental standards. Selection between DAC8555IPW and DAC8554IPWR should be based on packaging requirements and supply chain availability for your specific application.

Frequently Asked Questions (FAQ)

Q: Can DAC8555IPW be used as a direct replacement for DAC8555IPWRG4?

A: Yes. DAC8555IPW is the manufacturer-recommended substitute with identical electrical specifications, resolution, channel count, output configuration, data interface support, supply voltage range, accuracy performance, package type, and operating temperature range. The only difference is product status and packaging format.

Q: What is the difference between DAC8555IPW and DAC8554IPWR?

A: Both parts are parametrically equivalent with identical 16-bit resolution, four-channel configuration, buffered voltage outputs, SPI/DSP interface support, and all electrical specifications. The difference lies in the base product number designation (DAC8555 versus DAC8554) and packaging format (tube versus cut tape/Digi-Reel®).

Q: Are the substitute parts compatible with existing PCB layouts designed for DAC8555IPWRG4?

A: Yes. Both substitute parts use the identical 16-TSSOP surface mount package with the same 0.173" width and 4.40mm dimensions. PCB layouts, footprints, and assembly processes require no modification.

Q: Do the substitute parts meet the same compliance requirements?

A: Yes. Both DAC8555IPW and DAC8554IPWR maintain ROHS3 compliance and MSL Level 1 rating, matching the compliance profile of the original DAC8555IPWRG4.

Q: Which substitute part should I select for new designs?

A: For new designs, either DAC8555IPW or DAC8554IPWR is acceptable based on parametric equivalence. Selection should consider packaging preference (tube versus cut tape/Digi-Reel®) and supply chain availability for your procurement timeline.