DAC8043UCG4 Equivalent & Substitute Parts

Part Overview

The DAC8043UCG4 is a 12-bit digital-to-analog converter manufactured by Texas Instruments, housed in an 8-SOIC surface mount package. This component is classified as obsolete, making equivalent and substitute parts necessary for ongoing design support and production continuity. The DAC8043UCG4 provides current output through an unbuffered configuration with SPI data interface and external voltage reference capability, operating across the industrial temperature range of -40°C to 85°C.

Substiute Parts

DAC8043UCG4

Texas InstrumentsIn Stock: 1095DAC8043UCG4 Datasheet

Current PartRFQ

LTC8043ES8#PBF

Analog Devices Inc.In Stock: 2269LTC8043ES8#PBF Datasheet

DirectRFQ

LTC8043ES8#TRPBF

Analog Devices Inc.In Stock: 3151LTC8043ES8#TRPBF Datasheet

DirectRFQ

DAC8043A1FSZ

Analog Devices Inc.In Stock: 1862DAC8043A1FSZ Datasheet

MFR RecommendedRFQ

DAC8043AESZ

Analog Devices Inc.In Stock: 1166DAC8043AESZ Datasheet

MFR RecommendedRFQ

DAC8043AFSZ

Analog Devices Inc.In Stock: 1827DAC8043AFSZ Datasheet

MFR RecommendedRFQ

DAC8043AFSZ-REEL7

Analog Devices Inc.In Stock: 2028DAC8043AFSZ-REEL7 Datasheet

MFR RecommendedRFQ

LTC8043FS8#PBF

Analog Devices Inc.In Stock: 1715LTC8043FS8#PBF Datasheet

MFR RecommendedRFQ

LTC8043FS8#TRPBF

Analog Devices Inc.In Stock: 2915LTC8043FS8#TRPBF Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DAC8043UCG4 is determined by strict equivalence across the following parameters: 12-bit resolution, single D/A converter, 1µs settling time, current unbuffered output, SPI interface, external reference type, 5V analog and digital supply voltages, 8-SOIC package, surface mount configuration, and operating temperature range of -40°C to 85°C. All substitute parts listed maintain these core electrical and mechanical specifications.

Substitute parts are grouped by manufacturer and product status. Analog Devices Inc. provides multiple equivalent options across the DAC8043 and LTC8043 base product families. The primary distinction among substitutes relates to INL/DNL tolerance specifications and packaging format (tube versus tape & reel), which do not affect functional interchangeability within the specified parameter set.

Parameter Comparison

Engineering Selection Recommendations

All listed substitute parts are active products from Analog Devices Inc., providing design continuity for the obsolete DAC8043UCG4. Selection among substitutes should be based on packaging format requirements and tolerance specifications.

For applications requiring ±0.5 LSB INL/DNL tolerance matching the original DAC8043UCG4 specification, select LTC8043ES8#PBF (tube packaging) or LTC8043ES8#TRPBF (tape & reel packaging). These parts maintain identical electrical performance characteristics.

For applications where ±1 LSB INL/DNL tolerance is acceptable, the DAC8043A1FSZ, DAC8043AFSZ, DAC8043AFSZ-REEL7, LTC8043FS8#PBF, and LTC8043FS8#TRPBF options provide equivalent functionality with relaxed tolerance specifications. Tape & reel packaging variants (REEL7 and TRPBF designations) are suitable for high-volume automated assembly, while tube packaging variants support lower-volume or manual assembly processes.

All substitute parts maintain ROHS3 compliance and are rated for the same -40°C to 85°C operating temperature range. Moisture sensitivity level (MSL) ratings of 1 (unlimited) for all active substitutes provide superior moisture handling compared to the original part's MSL 3 rating.

Frequently Asked Questions (FAQ)

Q: Can DAC8043UCG4 be directly replaced with any of the listed substitutes?

A: Yes, all listed parts are functionally equivalent within the specified parameter set. The 8-SOIC package, 12-bit resolution, 1µs settling time, SPI interface, and 5V supply requirements are maintained across all substitutes. Pin-for-pin compatibility is assured for the 8-SOIC package format.

Q: What is the difference between LTC8043ES8#PBF and LTC8043ES8#TRPBF?

A: Both parts are electrically identical with ±0.5 LSB INL/DNL tolerance. The primary difference is packaging format: PBF indicates tube packaging suitable for lower-volume applications, while TRPBF indicates tape & reel packaging optimized for automated high-volume assembly processes.

Q: Why do some substitutes specify ±1 LSB INL/DNL instead of ±0.5 LSB?

A: The DAC8043A1FSZ, DAC8043AFSZ, DAC8043AFSZ-REEL7, LTC8043FS8#PBF, and LTC8043FS8#TRPBF variants offer relaxed linearity tolerance specifications. These parts remain functionally equivalent for applications where ±1 LSB accuracy is acceptable, providing cost or availability advantages without compromising core 12-bit resolution and settling time performance.

Q: Are all substitutes ROHS3 compliant?

A: Yes, all listed substitute parts maintain ROHS3 compliance and REACH unaffected status, matching the environmental certification requirements of the original DAC8043UCG4.

Q: What is the significance of MSL rating differences?

A: The original DAC8043UCG4 carries MSL 3 (168 hours), while all active substitutes are rated MSL 1 (unlimited). MSL 1 rating indicates superior moisture resistance and eliminates time-based moisture absorption constraints during storage and handling, providing operational advantages for long-term inventory management.

Q: Can I use LTC8043 base product parts interchangeably with DAC8043 base product parts?

A: Yes, within the specified parameter constraints. Both LTC8043 and DAC8043 families maintain identical 12-bit resolution, 1µs settling time, SPI interface, and 8-SOIC package specifications. The primary distinction is internal architecture (R-2R for LTC8043 versus multiplying DAC for the original), which does not affect functional interchangeability for the specified electrical parameters.