DS1834 Equivalent & Substitute Parts

Part Overview

The DS1834 is a multi-voltage supervisor IC from Analog Devices Inc./Maxim Integrated, designed for power management applications requiring monitoring of two supply voltages. This device features open drain or open collector output with active low reset functionality and a 200ms minimum reset timeout. The DS1834 is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

DS1834

Analog Devices Inc./Maxim IntegratedIn Stock: 4629DS1834 Datasheet

Current PartRFQ

DS1834+

Analog Devices Inc./Maxim IntegratedIn Stock: 1123DS1834+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1834 is determined by the following critical parameters:

• Voltage Monitoring Capability: Must monitor exactly 2 supply voltages with thresholds at 3.3V and 5V
• Output Configuration: Must provide open drain or open collector output
• Reset Characteristics: Must feature active low reset with 200ms minimum timeout
• Operating Temperature Range: Must support -40°C to 85°C operation
• Package Compatibility: Must be available in 8-DIP (0.300", 7.62mm) through-hole configuration
• Functional Series: Must belong to the EconoReset series from Analog Devices Inc./Maxim Integrated

The DS1834+ qualifies as a direct substitute, maintaining identical electrical specifications and package form factor while offering improved compliance status.

Parameter Comparison

Engineering Selection Recommendations

The DS1834+ serves as the direct functional equivalent to the DS1834. Both devices maintain identical electrical and mechanical specifications across all critical parameters including voltage monitoring thresholds, output configuration, reset timing, and package form factor.

The primary distinction between these parts is regulatory compliance status. The DS1834+ achieves ROHS3 compliance, whereas the original DS1834 is non-compliant. For applications subject to RoHS directives or environmental regulations, the DS1834+ is the appropriate selection. Both parts retain obsolete product status and identical moisture sensitivity ratings.

Frequently Asked Questions (FAQ)

Q: Can the DS1834+ be used as a direct replacement for the DS1834 in existing designs?

A: Yes. The DS1834+ is electrically and mechanically identical to the DS1834. All voltage thresholds, output characteristics, reset timing, operating temperature range, and 8-DIP package dimensions are equivalent. Direct substitution is possible without circuit modification.

Q: What is the significance of the RoHS compliance difference?

A: The DS1834+ meets ROHS3 compliance standards, while the DS1834 does not. For applications requiring compliance with RoHS directives or environmental regulations, the DS1834+ is the appropriate choice. The electrical performance remains unchanged.

Q: Are there any package or mounting differences between these parts?

A: No. Both the DS1834 and DS1834+ use identical 8-DIP (0.300", 7.62mm) through-hole packaging. PCB layout and mounting procedures are unchanged.

Q: What does the "+" designation indicate in the DS1834+ part number?

A: The "+" suffix indicates an updated version of the base DS1834 part, typically reflecting improved compliance status or manufacturing updates while maintaining full functional equivalence.

Q: Are both parts still available for procurement?

A: Both parts are classified as obsolete. Availability is limited to existing inventory. The DS1834 has 4545 units in stock, while the DS1834+ has 1065 units available. Procurement should prioritize current availability and compliance requirements.