MAX543BCSA 12-Bit Digital to Analog Converter Equivalent & Substitute Parts

Part Overview

The MAX543BCSA is a 12-bit digital to analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring current output conversion. The device features an R-2R architecture with SPI interface and external reference capability. The MAX543BCSA is classified as obsolete, making equivalent and substitute parts necessary for ongoing system support and new design implementations. Active alternatives with compatible electrical and mechanical specifications are available from Analog Devices Inc.

Substiute Parts

MAX543BCSA

Analog Devices Inc./Maxim IntegratedIn Stock: 3180MAX543BCSA Datasheet

Current PartRFQ

MAX543BCSA+

Analog Devices Inc./Maxim IntegratedIn Stock: 57110MAX543BCSA+ Datasheet

DirectRFQ

DAC8043AESZ

Analog Devices Inc.In Stock: 1166DAC8043AESZ Datasheet

MFR RecommendedRFQ

LTC8043ES8#PBF

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

MFR RecommendedRFQ

LTC8043ES8#TRPBF

Analog Devices Inc.In Stock: 3151LTC8043ES8#TRPBF 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 MAX543BCSA is determined by strict equivalence across the following critical parameters:

Mandatory Equivalence Parameters:

• Resolution: 12 bits
• Number of D/A Converters: 1
• Output Type: Current - Unbuffered
• Data Interface: SPI
• Reference Type: External
• Settling Time: 1µs
• Architecture: R-2R
• Package / Case: 8-SOIC (0.154", 3.90mm Width)
• Mounting Type: Surface Mount
• Moisture Sensitivity Level: 1 (Unlimited)

Allowable Variations:

• Voltage supply ranges may differ (5V only vs. dual supply range)
• INL/DNL specifications may be tighter (±0.5 LSB vs. ±1 LSB)
• Operating temperature range may be extended (-40°C ~ 85°C vs. 0°C ~ 70°C)
• Product status may transition from obsolete to active
• RoHS compliance status may improve
• Packaging format (Tube, Tape & Reel) may vary

Substitute parts maintain identical functional performance within the MAX543BCSA's specified operating conditions while offering improved availability, compliance status, or performance characteristics.

Parameter Comparison

Engineering Selection Recommendations

MAX543BCSA+ (Direct Upgrade) The MAX543BCSA+ is the direct successor to the MAX543BCSA, maintaining identical electrical specifications and operating parameters while transitioning to active product status and ROHS3 compliance. This part is the primary recommendation for MAX543BCSA replacement in new designs and system updates. Significantly higher inventory availability (57030 units) ensures supply continuity.

DAC8043AESZ (Enhanced Performance) The DAC8043AESZ offers improved INL/DNL specifications (±0.5 LSB vs. ±1 LSB) and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C). This part is suitable for applications requiring tighter linearity performance or operation in wider temperature environments. Supply voltage is limited to 5V single supply. ROHS3 compliant.

LTC8043ES8#PBF and LTC8043ES8#TRPBF (Alternative Sources) These Linear Technology (Analog Devices) parts provide equivalent functionality with improved INL/DNL specifications (±0.5 LSB) and extended temperature range. Available in both tube and tape & reel packaging formats. ROHS3 compliant. 5V single supply operation.

LTC8043FS8#PBF and LTC8043FS8#TRPBF (Standard Linearity) These parts maintain ±1 LSB INL/DNL specifications matching the original MAX543BCSA while offering extended temperature range (-40°C ~ 85°C) and ROHS3 compliance. Available in tube and tape & reel formats. 5V single supply operation.

All substitute parts maintain identical functional performance within the MAX543BCSA's specified operating conditions. Selection should be based on supply voltage requirements, temperature range needs, linearity specifications, and packaging format availability.

Frequently Asked Questions (FAQ)

Q: Can MAX543BCSA+ be used as a direct replacement for MAX543BCSA? A: Yes. The MAX543BCSA+ maintains identical electrical specifications, pin configuration, and functional performance. The primary differences are active product status and ROHS3 compliance. No circuit modifications are required.

Q: What is the key difference between DAC8043AESZ and LTC8043ES8#PBF? A: Both parts offer identical electrical specifications and improved INL/DNL performance (±0.5 LSB). The primary difference is manufacturer designation: DAC8043AESZ is Analog Devices branded, while LTC8043ES8#PBF is Linear Technology branded (now part of Analog Devices). Functionally equivalent for all applications.

Q: Why do some substitute parts specify 5V supply only instead of dual supply range? A: The DAC8043AESZ and LTC8043 series parts are optimized for single 5V supply operation. Applications requiring dual supply voltage (11.4V ~ 15.75V) must use MAX543BCSA+ to maintain the original supply flexibility.

Q: What is the difference between LTC8043ES8#PBF and LTC8043FS8#PBF? A: Both parts are functionally equivalent with identical pin configuration and package. The primary difference is INL/DNL specification: LTC8043ES8#PBF specifies ±0.5 LSB (tighter), while LTC8043FS8#PBF specifies ±1 LSB (matching original MAX543BCSA). Selection depends on linearity requirements.

Q: What packaging formats are available for substitute parts? A: Substitute parts are available in Tube and Tape & Reel (TR) packaging formats. Tube packaging is standard for manual assembly and small-volume applications. Tape & Reel format is optimized for automated pick-and-place assembly in high-volume production.

Q: Are all substitute parts ROHS3 compliant? A: Yes. All substitute parts listed (MAX543BCSA+, DAC8043AESZ, LTC8043ES8#PBF, LTC8043ES8#TRPBF, LTC8043FS8#PBF, LTC8043FS8#TRPBF) are ROHS3 compliant. The original MAX543BCSA is RoHS non-compliant.

Q: Can substitute parts with extended temperature range (-40°C ~ 85°C) be used in applications specified for 0°C ~ 70°C? A: Yes. Extended temperature range parts are fully compatible with applications requiring the narrower 0°C ~ 70°C range. The extended range provides additional operational margin and flexibility for future applications.

Q: What is the significance of the "+" suffix in MAX543BCSA+? A: The "+" suffix indicates packaging format designation (Tube). It does not affect electrical specifications or functional performance compared to the base MAX543BCSA part number.