MAX1285BESA Equivalent & Substitute Parts

Part Overview

The MAX1285BESA is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. This component features a Successive Approximation Register (SAR) architecture with an internal reference, operating at a sampling rate of 300 kSPS across a supply voltage range of 2.7V to 3.6V for both analog and digital domains. The device is packaged in an 8-SOIC surface mount package and communicates via SPI interface.

The MAX1285BESA is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production requirements for legacy systems or new designs requiring this specific functionality.

Substiute Parts

MAX1285BESA

Analog Devices Inc./Maxim IntegratedIn Stock: 799MAX1285BESA Datasheet

Current PartRFQ

MAX1285BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 3251MAX1285BESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX1285BESA are identified based on electrical and mechanical parameter equivalence. The critical parameters determining substitutability are:

• Resolution: 12 bits
• Sampling Rate: 300 kSPS
• Input Configuration: Single-ended, 1 input
• Communication Protocol: SPI
• Converter Architecture: SAR with internal reference
• Supply Voltage Range: 2.7V ~ 3.6V (both analog and digital)
• Operating Temperature: -40°C ~ 85°C
• Package: 8-SOIC surface mount

The MAX1285BESA+ is a direct functional equivalent sharing all electrical specifications and physical packaging. The primary distinction is product status and compliance certification, not technical performance or pinout compatibility.

Parameter Comparison

Engineering Selection Recommendations

The MAX1285BESA+ is the direct substitute for the MAX1285BESA. Both components are electrically and mechanically identical, with identical pinout, signal timing, and functional performance. The MAX1285BESA+ is preferred for new designs and ongoing production due to its active product status and ROHS3 compliance certification. The MAX1285BESA, being obsolete and RoHS non-compliant, should be replaced with the MAX1285BESA+ where supply chain and regulatory requirements permit. Both parts share the same base product number (MAX1285) and are sourced from the same manufacturer, ensuring design compatibility without circuit modification.

Frequently Asked Questions (FAQ)

Q: Are MAX1285BESA and MAX1285BESA+ pin-compatible?

A: Yes. Both components use the 8-SOIC package with identical pinout and signal definitions. No PCB redesign is required for substitution.

Q: What is the difference between MAX1285BESA and MAX1285BESA+?

A: The components are electrically and functionally identical. The primary differences are product lifecycle status (obsolete vs. active) and compliance certification (RoHS non-compliant vs. ROHS3 compliant). The MAX1285BESA+ includes tube packaging, while the original part does not specify packaging format.

Q: Can I use MAX1285BESA+ in a design originally specified for MAX1285BESA?

A: Yes. The MAX1285BESA+ is a direct functional replacement with no design modifications required. It is recommended for all new applications and production runs.

Q: Are there any timing or performance differences between these parts?

A: No. Both parts share identical electrical specifications, including 12-bit resolution, 300 kSPS sampling rate, SPI interface, and operating temperature range of -40°C to 85°C.

Q: What is the supply voltage requirement for both parts?

A: Both the MAX1285BESA and MAX1285BESA+ require 2.7V to 3.6V for both analog and digital supply rails.

Q: Is the MAX1285BESA+ suitable for industrial temperature applications?

A: Both parts operate across -40°C to 85°C, which covers industrial temperature ranges. Verify specific application requirements against this operating range.