DS18030-010+ Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The DS18030-010+ is a digital potentiometer IC manufactured by Analog Devices Inc./Maxim Integrated, designed for precision resistance adjustment in data acquisition applications. This 10kΩ dual-circuit device features 256 taps with I2C interface control and is packaged in a 16-DIP through-hole configuration. The part is currently in Last Time Buy status, making identification of compatible substitutes essential for ongoing design support and production continuity.

Substiute Parts

DS18030-010+

Analog Devices Inc./Maxim IntegratedIn Stock: 713DS18030-010+ Datasheet

Current PartRFQ

DS1803E-010+

Analog Devices Inc./Maxim IntegratedIn Stock: 6215DS1803E-010+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS18030-010+ is determined by strict equivalence across the following critical parameters:

• Resistance Value & Tap Configuration: 10kΩ with 256 taps ensures identical resolution and end-to-end resistance
• Circuit Count: Dual-circuit (2-circuit) configuration must be maintained
• Interface Protocol: I2C interface compatibility is mandatory for control signal compatibility
• Electrical Specifications: Supply voltage range (2.7V ~ 5.5V), operating temperature (-40°C ~ 85°C), tolerance (±20%), and temperature coefficient (750ppm/°C) must match
• Functional Characteristics: Volatile memory type, selectable address feature, and wiper resistance (400Ω typical) must be preserved

The DS1803E-010+ meets all these criteria as a direct functional equivalent, with the primary distinction being package format (surface mount vs. through-hole).

Parameter Comparison

Engineering Selection Recommendations

The DS1803E-010+ is a direct functional substitute for the DS18030-010+ based on electrical and control interface equivalence. Both parts are ROHS3 compliant and REACH unaffected, meeting current regulatory requirements.

Primary Consideration: The substitution requires PCB redesign due to package format change from 16-DIP through-hole to 14-TSSOP surface mount. Pin-to-pin functional mapping must be verified against device datasheets to ensure correct signal routing in the new package configuration.

Availability Advantage: The DS1803E-010+ is in Active product status with significantly higher inventory (6108 pcs vs. 688 pcs), providing superior long-term supply security compared to the Last Time Buy status of the original part.

Frequently Asked Questions (FAQ)

Q: Can the DS1803E-010+ directly replace the DS18030-010+ without circuit modification?

A: Electrical and control interface compatibility is complete. However, physical PCB layout modification is required due to package format differences (16-DIP through-hole vs. 14-TSSOP surface mount). Pin assignments must be cross-referenced with both device datasheets.

Q: Are the I2C control protocols identical between these parts?

A: Yes. Both parts implement I2C interface with selectable address functionality, ensuring software and firmware compatibility without modification.

Q: What is the impact of the package change on circuit performance?

A: Electrical performance characteristics are identical. The surface-mount package may offer improved thermal characteristics due to reduced lead inductance, but operating temperature range and thermal specifications remain equivalent.

Q: Why is the DS18030-010+ in Last Time Buy status?

A: Last Time Buy status indicates the manufacturer is discontinuing this product line. The DS1803E-010+ represents the active replacement in the Analog Devices digital potentiometer portfolio.

Q: Are there any compliance or certification differences?

A: Both parts maintain identical RoHS3 compliance and REACH unaffected status. No compliance trade-offs exist between the two parts.