DS1238-10 Equivalent & Substitute Parts

Part Overview

The DS1238-10 is a supervisor integrated circuit from Analog Devices Inc./Maxim Integrated, designed for battery backup circuit applications. This 16-DIP package device monitors a single voltage channel with an open drain and push-pull output configuration. The DS1238-10 is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

DS1238-10

Analog Devices Inc./Maxim IntegratedIn Stock: 677DS1238-10 Datasheet

Current PartRFQ

ADM693ANZ

Analog Devices Inc.In Stock: 1161ADM693ANZ Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the DS1238-10 is determined by strict alignment of the following critical parameters:

• Package type: 16-DIP (0.300", 7.62mm) for mechanical and electrical compatibility
• Functional category: Battery backup circuit supervisor with single voltage monitoring
• Output configuration: Open drain and push-pull outputs
• Reset functionality: Active high/active low capability
• Voltage threshold range: Devices with threshold values within acceptable tolerance of 4.37V
• Mounting type: Through hole configuration for PCB integration

The ADM693ANZ meets these substitution criteria as a functionally equivalent alternative from the same manufacturer family.

Parameter Comparison

Engineering Selection Recommendations

The ADM693ANZ is the manufacturer-recommended substitute for the DS1238-10. Both devices share identical package geometry, functional output configuration, and voltage monitoring architecture. The ADM693ANZ offers extended operating temperature range (-40°C to 85°C versus 0°C to 70°C), improved product status as an active component, and ROHS3 compliance. The voltage threshold differential of 0.03V (4.4V versus 4.37V) and reset timeout reduction of 5ms are within typical application tolerances for supervisor circuits. The ADM693ANZ is suitable for direct replacement in existing designs and recommended for new implementations requiring active product support.

Frequently Asked Questions (FAQ)

Q: Can the ADM693ANZ directly replace the DS1238-10 in existing PCB designs?

A: Yes. Both devices use identical 16-DIP package geometry and pinout configuration. No PCB modifications are required for mechanical or electrical integration.

Q: What is the significance of the voltage threshold difference between 4.37V and 4.4V?

A: The 0.03V difference represents a 0.68% variance. This falls within standard tolerance specifications for supervisor threshold accuracy and does not affect functional compatibility in battery backup circuit applications.

Q: Does the extended temperature range of the ADM693ANZ affect compatibility?

A: No. The ADM693ANZ operating range of -40°C to 85°C encompasses the DS1238-10 range of 0°C to 70°C. Extended temperature capability provides additional design flexibility without compromising existing specifications.

Q: What is the impact of the 5ms reset timeout difference?

A: The ADM693ANZ reset timeout of 35ms minimum is shorter than the DS1238-10 specification of 40ms minimum. This represents faster system reset response and does not create compatibility issues in standard battery backup applications.

Q: Why is RoHS compliance important for this substitution?

A: The ADM693ANZ is ROHS3 compliant while the DS1238-10 is non-compliant. For applications subject to RoHS regulations or customer requirements, the ADM693ANZ ensures regulatory alignment and environmental compliance.

Q: Are there additional substitute options beyond the ADM693ANZ?

A: The ADM693ANZ documentation references additional variants including MAX693CPE+, MAX693AEPE+, and MAX693EPE+. Verification of specific parameter alignment with these alternatives requires detailed datasheet comparison against your application requirements.