MAX518BESA-T Equivalent & Substitute Parts

Part Overview

The MAX518BESA-T is an 8-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications. This device features dual D/A converters with voltage-buffered outputs, I2C data interface, and external reference capability. The part is classified as obsolete, making identification of suitable substitutes essential for ongoing system support and new design implementations.

Substiute Parts

MAX518BESA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 791MAX518BESA-T Datasheet

Current PartRFQ

MAX518BESA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 1056MAX518BESA+T Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX518BESA-T is determined by strict equivalence across the following critical parameters:

• Resolution & Converter Count: 8-bit resolution with dual D/A converters
• Output Configuration: Voltage-buffered output topology
• Interface Protocol: I2C digital communication
• Reference Architecture: External reference input
• Supply Voltage: Dual 5V supplies (analog and digital)
• Linearity Specifications: INL/DNL performance within ±1.5 LSB / ±1 LSB
• Settling Time: 6µs typical response
• Package Form Factor: 8-SOIC surface mount package
• Temperature Range: -40°C to 85°C operational window

The MAX518BESA+T meets all these criteria as a direct functional equivalent, with the primary distinction being packaging format and product lifecycle status.

Parameter Comparison

Engineering Selection Recommendations

The MAX518BESA+T is the direct functional equivalent for the obsolete MAX518BESA-T. Both devices share identical electrical specifications, pin configuration, and package geometry, ensuring drop-in compatibility at the component level.

The MAX518BESA+T offers additional advantages for new designs and ongoing production:

• Active Product Status: Continued manufacturer support and availability
• RoHS3 Compliance: Meets current environmental and regulatory requirements
• Tape & Reel Packaging: Optimized for automated assembly processes

For applications currently using the MAX518BESA-T, transition to the MAX518BESA+T is supported without circuit modification or firmware changes.

Frequently Asked Questions (FAQ)

Q: Are the MAX518BESA-T and MAX518BESA+T pin-compatible?

A: Yes. Both devices use the 8-SOIC package with identical pin assignments and electrical characteristics. No PCB redesign is required.

Q: What is the difference between the two part numbers?

A: The primary difference is packaging format. The MAX518BESA-T is supplied in tube packaging, while the MAX518BESA+T uses Tape & Reel format. The MAX518BESA+T also carries RoHS3 compliance certification, whereas the MAX518BESA-T does not.

Q: Can I use the MAX518BESA+T as a direct replacement in existing designs?

A: Yes. The MAX518BESA+T is electrically and mechanically equivalent to the MAX518BESA-T. No design changes are necessary for substitution.

Q: Why is the MAX518BESA-T classified as obsolete?

A: Obsolescence reflects the manufacturer's end-of-life status for this specific part number variant. The MAX518BESA+T remains in active production.

Q: Are there any supply voltage or temperature range differences?

A: No. Both parts operate with identical 5V analog and digital supply requirements and share the same -40°C to 85°C operating temperature range.

Q: What are the key electrical parameters that define substitution eligibility?

A: Resolution (8-bit), converter count (2), output type (voltage-buffered), interface (I2C), reference type (external), settling time (6µs typical), and linearity specifications (±1.5 LSB INL, ±1 LSB DNL) must remain constant for functional equivalence.