DS1807E Digital Potentiometer Equivalent & Substitute Parts

Part Overview

The DS1807E is a digital potentiometer manufactured by Analog Devices Inc./Maxim Integrated, designed for audio and signal processing applications requiring programmable resistance control. This 45kΩ, 2-circuit device features an I2C interface with 65 taps and logarithmic taper, making it suitable for volume control and attenuation circuits.

The DS1807E 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 existing applications and new designs.

Substiute Parts

DS1807E

Analog Devices Inc./Maxim IntegratedIn Stock: 5531DS1807E Datasheet

Current PartRFQ

DS1807E+

Analog Devices Inc./Maxim IntegratedIn Stock: 20137DS1807E+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1807E is determined by strict equivalence across the following critical parameters:

• Resistance value: 45kΩ (exact match required)
• Circuit configuration: 2 independent circuits
• Tap count: 65 taps (determines resolution)
• Interface protocol: I2C (ensures software compatibility)
• Taper characteristic: Logarithmic (required for audio applications)
• Supply voltage range: 2.7V ~ 5.5V (system compatibility)
• Operating temperature range: -40°C ~ 85°C (environmental specification)
• Package: 14-TSSOP (PCB layout compatibility)
• Feature set: Mute, Selectable Address, Zero-Cross Sense (functional requirements)

Parts meeting all these parameters are classified as direct substitutes. Deviations in any parameter require circuit redesign or application re-qualification.

Parameter Comparison

Engineering Selection Recommendations

The DS1807E+ is a direct functional equivalent to the DS1807E. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical and mechanical specifications across all critical parameters.

The primary distinction between these parts is product lifecycle status and regulatory compliance:

• DS1807E is classified as obsolete, indicating discontinued manufacturing and limited long-term availability.
• DS1807E+ is classified as active, ensuring ongoing production and supply chain support.
• DS1807E+ achieves ROHS3 compliance, whereas the DS1807E is RoHS non-compliant.

For new designs and applications requiring long-term component availability, DS1807E+ is the appropriate selection. For existing designs currently using DS1807E, direct substitution with DS1807E+ is electrically and mechanically compatible without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can DS1807E+ be used as a direct replacement for DS1807E in existing designs?

A: Yes. The DS1807E+ is electrically and mechanically identical to the DS1807E. All functional parameters, pin configurations, and electrical characteristics are equivalent. No circuit redesign is required.

Q: What is the difference between DS1807E and DS1807E+?

A: The primary differences are product status and regulatory compliance. DS1807E is obsolete; DS1807E+ is active. DS1807E+ meets ROHS3 compliance standards, while DS1807E does not. Electrical performance and functionality are identical.

Q: Are there any package differences between these parts?

A: Both parts use the 14-TSSOP package with identical dimensions (0.173", 4.40mm width). The DS1807E+ is supplied in tube packaging, while the DS1807E packaging specification is not provided. PCB layout and assembly compatibility are unchanged.

Q: What parameters must match for a part to be considered a substitute for DS1807E?

A: A substitute must match all of the following: 45kΩ resistance, 2 circuits, 65 taps, I2C interface, logarithmic taper, 2.7V–5.5V supply range, -40°C to 85°C operating temperature, 14-TSSOP package, and the complete feature set (Mute, Selectable Address, Zero-Cross Sense).

Q: Is the DS1807E+ suitable for new product designs?

A: Yes. DS1807E+ is the recommended choice for new designs. It is an active product with ongoing manufacturer support and meets current RoHS compliance requirements.