DS1834AS Equivalent & Substitute Parts

Part Overview

The DS1834AS is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring dual-channel voltage monitoring. This device monitors two voltage thresholds (3.3V and 5V) and provides active-low reset output via open drain or open collector configuration. The DS1834AS is classified as obsolete, making identification of functionally equivalent alternatives necessary for ongoing system support and new design implementations.

Substiute Parts

DS1834AS

Analog Devices Inc./Maxim IntegratedIn Stock: 1423DS1834AS Datasheet

Current PartRFQ

DS1834AS+

Analog Devices Inc./Maxim IntegratedIn Stock: 1710DS1834AS+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the DS1834AS is determined by strict equivalence across the following critical parameters:

• Voltage Monitoring Channels: Must support exactly 2 channels
• Voltage Thresholds: Must match 3.3V and 5V specifications
• Output Type: Must provide open drain or open collector configuration
• Reset Behavior: Must implement active-low reset logic with 200ms minimum timeout
• Package: Must use 8-SOIC form factor with identical pinout
• Operating Temperature: Must support -40°C to 85°C range
• Mounting: Must be surface mount compatible

The DS1834AS+ is a direct manufacturer equivalent that maintains all electrical and mechanical specifications while offering improved product status and compliance certifications.

Parameter Comparison

Engineering Selection Recommendations

The DS1834AS+ is the direct functional equivalent of the DS1834AS. Both devices are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications and package geometry. The primary distinction is product lifecycle status: the DS1834AS is obsolete, while the DS1834AS+ maintains active production status.

For new designs or system replacements, the DS1834AS+ is the appropriate selection. This part offers ROHS3 compliance, addressing regulatory requirements that the original DS1834AS does not meet. The DS1834AS+ is supplied in tube packaging, facilitating standard component handling and inventory management.

Both parts maintain identical voltage monitoring thresholds, reset timing, output configuration, and thermal operating range, ensuring direct functional interchangeability at the circuit level.

Frequently Asked Questions (FAQ)

Q: Can DS1834AS+ be used as a direct replacement for DS1834AS in existing designs?

A: Yes. The DS1834AS+ is electrically and mechanically identical to the DS1834AS. Both devices monitor 3.3V and 5V thresholds, provide active-low reset output with 200ms minimum timeout, and use the same 8-SOIC package. No circuit modifications are required.

Q: What is the significance of the product status difference between DS1834AS and DS1834AS+?

A: The DS1834AS is classified as obsolete, indicating discontinued manufacturing. The DS1834AS+ maintains active production status, ensuring long-term availability and supply chain reliability for new implementations and system maintenance.

Q: Are there compliance differences between these parts?

A: Yes. The DS1834AS is RoHS non-compliant, while the DS1834AS+ is ROHS3 compliant. For applications subject to RoHS regulations or customer requirements, the DS1834AS+ is the required selection.

Q: Do both parts use the same package footprint?

A: Yes. Both the DS1834AS and DS1834AS+ use the 8-SOIC package with 0.154" width (3.90mm). PCB layouts and footprints are directly compatible.

Q: What are the critical parameters that define substitution eligibility?

A: Substitution is valid when the following parameters match: dual-channel voltage monitoring, 3.3V and 5V threshold specifications, open drain or open collector output, active-low reset logic with 200ms minimum timeout, 8-SOIC package, -40°C to 85°C operating range, and surface mount configuration.