DAC8143FS Equivalent & Substitute Parts

Part Overview

The DAC8143FS is a 12-bit digital-to-analog converter manufactured by Analog Devices Inc., designed for data acquisition applications requiring current output with external reference configuration. The device features SPI data interface, R-2R architecture, and operates across the industrial temperature range of -40°C to 85°C in a 16-SOIC surface mount package.

The DAC8143FS is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

DAC8143FS

Analog Devices Inc.In Stock: 1342DAC8143FS Datasheet

Current PartRFQ

DAC8143FSZ

Analog Devices Inc.In Stock: 2246DAC8143FSZ Datasheet

DirectRFQ

LTC8143FSW#PBF

Analog Devices Inc.In Stock: 1541LTC8143FSW#PBF Datasheet

DirectRFQ

LTC8143FSW#TRPBF

Analog Devices Inc.In Stock: 904LTC8143FSW#TRPBF Datasheet

DirectRFQ

LTC8143ESW#PBF

Analog Devices Inc.In Stock: 651LTC8143ESW#PBF Datasheet

SimilarRFQ

LTC8143ESW#TRPBF

Analog Devices Inc.In Stock: 1053LTC8143ESW#TRPBF Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the DAC8143FS are grouped based on electrical and mechanical compatibility within the data acquisition converter category. The substitution logic is determined by the following critical parameters:

Electrical Compatibility Criteria:

• 12-bit resolution
• Single D/A converter configuration
• 1µs settling time
• SPI data interface
• External reference type
• 5V analog and digital supply voltages
• R-2R architecture
• -40°C to 85°C operating temperature range
• 16-SOIC package footprint

Substitution Categories:

Direct Substitutes maintain identical electrical specifications and differential output capability (DAC8143FSZ). These parts are pin-compatible and functionally equivalent.

Compatible Substitutes share core electrical specifications but differ in differential output configuration (LTC8143FSW#PBF, LTC8143FSW#TRPBF). These parts provide equivalent functionality with single-ended output architecture.

Similar Substitutes maintain core specifications with improved INL/DNL performance (±0.5 LSB vs ±1 LSB) and single-ended output (LTC8143ESW#PBF, LTC8143ESW#TRPBF). Enhanced accuracy specifications provide superior performance in precision applications.

Packaging variations (Tube vs Tape & Reel) do not affect electrical compatibility and are selected based on procurement and assembly requirements.

Parameter Comparison

Engineering Selection Recommendations

For Direct Replacement: DAC8143FSZ is the primary substitute for DAC8143FS. Both parts maintain identical electrical specifications, differential output capability, and package configuration. DAC8143FSZ carries active product status with ROHS3 compliance and REACH unaffected certification, ensuring regulatory alignment and long-term availability.

For Applications Tolerating Single-Ended Output: LTC8143FSW#PBF, LTC8143FSW#TRPBF, LTC8143ESW#PBF, and LTC8143ESW#TRPBF are compatible alternatives when differential output is not required. All four parts maintain core electrical specifications and operate within identical temperature and supply voltage parameters. These parts are active products with ROHS3 compliance and REACH unaffected status.

For Enhanced Accuracy Requirements: LTC8143ESW#PBF and LTC8143ESW#TRPBF offer improved INL/DNL specifications (±0.5 LSB maximum) compared to the original DAC8143FS (±1 LSB maximum). These parts are suitable for precision measurement applications requiring superior linearity performance.

Packaging Selection: Tube packaging (DAC8143FSZ, LTC8143FSW#PBF, LTC8143ESW#PBF) is appropriate for lower-volume procurement and manual assembly operations. Tape & Reel packaging (LTC8143FSW#TRPBF, LTC8143ESW#TRPBF) is optimized for high-volume automated assembly processes.

Frequently Asked Questions (FAQ)

Q: Can DAC8143FSZ directly replace DAC8143FS without circuit modification?

A: Yes. DAC8143FSZ maintains identical electrical specifications, differential output configuration, and 16-SOIC package footprint. No circuit modifications are required for direct substitution.

Q: What is the primary difference between DAC8143FSZ and LTC8143 series parts?

A: DAC8143FSZ retains the differential output capability of the original DAC8143FS. LTC8143 series parts (LTC8143FSW#PBF, LTC8143FSW#TRPBF, LTC8143ESW#PBF, LTC8143ESW#TRPBF) feature single-ended output architecture. All parts share identical resolution, settling time, data interface, and operating temperature specifications.

Q: Are LTC8143ESW parts suitable replacements for applications requiring ±1 LSB accuracy?

A: Yes. LTC8143ESW#PBF and LTC8143ESW#TRPBF provide ±0.5 LSB maximum INL/DNL, which exceeds the ±1 LSB specification of DAC8143FS. Enhanced accuracy specifications are backward-compatible with applications designed for lower precision.

Q: What packaging options are available for substitute parts?

A: Tube packaging is available for DAC8143FSZ, LTC8143FSW#PBF, and LTC8143ESW#PBF. Tape & Reel packaging is available for LTC8143FSW#TRPBF and LTC8143ESW#TRPBF. All parts use identical 16-SOIC (0.295", 7.50mm Width) surface mount package footprint.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. DAC8143FSZ, LTC8143FSW#PBF, LTC8143FSW#TRPBF, LTC8143ESW#PBF, and LTC8143ESW#TRPBF are all ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Can I use LTC8143 parts in applications originally designed for differential output?

A: LTC8143 series parts feature single-ended output architecture. Applications requiring differential output must use DAC8143FSZ. Applications tolerating single-ended output can use LTC8143 series parts without circuit modification.