DS1845E-010 Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The DS1845E-010 is a digital potentiometer IC manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications. This component features a 10kΩ resistance value with dual-circuit configuration, 100/256 taps, and I2C interface control. The main part (DS1845E-010) carries an obsolete product status, making identification of suitable alternatives necessary for ongoing design support and procurement planning. Active equivalent and parametric substitute options are available to maintain system functionality.

Substiute Parts

DS1845E-010

Analog Devices Inc./Maxim IntegratedIn Stock: 3425DS1845E-010 Datasheet

Current PartRFQ

DS1845E-010+

Analog Devices Inc./Maxim IntegratedIn Stock: 42276DS1845E-010+ Datasheet

DirectRFQ

DS1855E-010+

Analog Devices Inc./Maxim IntegratedIn Stock: 3278DS1855E-010+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS1845E-010 is determined by strict parameter matching across electrical and mechanical specifications. The following criteria establish valid substitution relationships:

Primary Substitution Criteria:

• Resistance value: 10kΩ (exact match required)
• Number of circuits: 2 (exact match required)
• Number of taps: 100, 256 (exact match required)
• Interface: I2C (exact match required)
• Memory type: Non-Volatile (exact match required)
• Supply voltage range: 2.7V ~ 5.5V (exact match required)
• Operating temperature range: -40°C ~ 85°C (exact match required)
• Package type: 14-TSSOP (exact match required)
• Mounting type: Surface Mount (exact match required)

Secondary Tolerance Parameters:

• Tolerance: ±20% (exact match required)
• Temperature coefficient: 750ppm/°C (exact match required)
• Features: Selectable Address (exact match required)

All substitute parts listed maintain full electrical and mechanical compatibility with the original DS1845E-010 specification.

Parameter Comparison

Engineering Selection Recommendations

DS1845E-010+ (Direct Substitute): This part is the direct functional equivalent of the obsolete DS1845E-010. It maintains identical electrical specifications and package configuration while offering active product status and ROHS3 compliance. The DS1845E-010+ is the primary choice for direct replacement in new designs and legacy system updates.

DS1855E-010+ (Parametric Equivalent): This part provides parametric equivalence with a single variance: the typical wiper resistance is 400Ω compared to 500Ω in the main part. All other electrical and mechanical parameters remain identical. The DS1855E-010+ is suitable for applications where the wiper resistance differential does not impact circuit performance. This part also carries active product status and ROHS3 compliance.

Both substitute parts are manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and are available in active production status, ensuring long-term supply continuity.

Frequently Asked Questions (FAQ)

Q: Can DS1845E-010+ be used as a direct replacement for DS1845E-010? A: Yes. The DS1845E-010+ maintains identical electrical specifications, package type (14-TSSOP), and functional parameters. The primary difference is product status (active vs. obsolete) and improved RoHS compliance.

Q: What is the difference between DS1845E-010+ and DS1855E-010+? A: Both parts are functionally equivalent with one exception: the typical wiper resistance differs (500Ω vs. 400Ω). All other parameters, including resistance value, tap count, interface type, and package configuration, are identical.

Q: Are there any compatibility concerns when substituting these parts? A: No compatibility concerns exist for either substitute. Both maintain the same I2C interface, supply voltage range (2.7V ~ 5.5V), operating temperature range (-40°C ~ 85°C), and 14-TSSOP package footprint.

Q: Does the wiper resistance difference in DS1855E-010+ affect circuit design? A: The wiper resistance variance (400Ω vs. 500Ω) is a typical parameter specification. Circuit impact depends on application-specific requirements. Consult application schematics to determine if this 100Ω difference is significant for your design.

Q: What is the packaging difference between the main part and substitutes? A: The main part (DS1845E-010) packaging is not specified. Both substitute parts (DS1845E-010+ and DS1855E-010+) are supplied in Tube packaging, which is standard for surface-mount components in production quantities.

Q: Are the substitute parts RoHS compliant? A: Yes. Both DS1845E-010+ and DS1855E-010+ are ROHS3 compliant, whereas the obsolete DS1845E-010 is RoHS non-compliant.