DS1831AS Equivalent & Substitute Parts

Part Overview

The DS1831AS is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring monitoring of up to 4 voltage channels. This device features open drain or open collector output with active low reset functionality, housed in a 16-SOIC surface mount package. The DS1831AS is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations where this topology remains applicable.

Substiute Parts

DS1831AS

Analog Devices Inc./Maxim IntegratedIn Stock: 6355DS1831AS Datasheet

Current PartRFQ

DS1831AS+

Analog Devices Inc./Maxim IntegratedIn Stock: 1213DS1831AS+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1831AS is determined by strict equivalence across the following critical parameters:

• Functional Type: Multi-voltage supervisor with 4-channel monitoring capability
• Voltage Thresholds: Support for 3.3V, 5V, and adjustable threshold configurations
• Output Configuration: Open drain or open collector output topology
• Reset Behavior: Active low reset with specified timeout intervals (10ms, 100ms, 1,000ms minimum)
• Thermal Range: Operating temperature specification of -40°C to 85°C
• Package Specification: 16-SOIC surface mount package with 0.154" (3.90mm) width

The DS1831AS+ qualifies as a direct substitute based on identical electrical specifications and package configuration. The primary distinction between these parts is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The DS1831AS+ is the direct functional equivalent of the DS1831AS with identical electrical and mechanical specifications. Selection between these parts is determined by regulatory and supply chain requirements:

DS1831AS: Suitable for legacy system maintenance where existing inventory is available and RoHS compliance is not mandated. Product status is obsolete, limiting long-term availability.

DS1831AS+: Recommended for new designs and ongoing production where active product status and ROHS3 compliance are required. This variant maintains full electrical and mechanical compatibility while providing current manufacturing support and regulatory alignment.

Both parts are manufactured by the same supplier and operate within identical parameter ranges across voltage monitoring, reset timing, temperature range, and package specifications.

Frequently Asked Questions (FAQ)

Q: Are DS1831AS and DS1831AS+ electrically interchangeable?

A: Yes. Both parts are multi-voltage supervisors with identical specifications for voltage thresholds (3.3V, 5V, adjustable), 4-channel monitoring, open drain/open collector output, active low reset, and reset timeout intervals. Electrical performance is equivalent.

Q: Can DS1831AS+ be used as a direct replacement for DS1831AS in existing designs?

A: Yes. The DS1831AS+ maintains identical pin configuration, package dimensions (16-SOIC, 0.154" width), and electrical characteristics. No circuit modifications are required for substitution.

Q: What is the primary difference between these parts?

A: Product status and compliance certification. The DS1831AS is obsolete and RoHS non-compliant, while the DS1831AS+ is active production and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Does the packaging format difference affect compatibility?

A: No. The DS1831AS+ is supplied in tube packaging, while the DS1831AS packaging format is not specified. Both use the same 16-SOIC surface mount package. Packaging format affects handling and storage but not electrical or mechanical compatibility.

Q: Which part should be selected for new designs?

A: The DS1831AS+ is the appropriate selection for new designs due to active product status, ROHS3 compliance, and ongoing manufacturing support from Analog Devices Inc./Maxim Integrated.

Q: Are there any temperature or operating range differences?

A: No. Both parts operate across the identical temperature range of -40°C to 85°C (TA) and support the same reset timeout specifications.