MAX1085BESA Equivalent & Substitute Parts

Part Overview

The MAX1085BESA is a 10-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 2.7V to 3.6V supply range. The device is packaged in an 8-SOIC surface mount configuration.

The MAX1085BESA is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs or component replenishment. Substitute parts must maintain identical electrical specifications and mechanical compatibility to ensure seamless integration into existing circuit designs.

Substiute Parts

MAX1085BESA

Analog Devices Inc./Maxim IntegratedIn Stock: 1380MAX1085BESA Datasheet

Current PartRFQ

MAX1085BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 992MAX1085BESA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1085BESA is determined by strict equivalence across the following critical parameters:

• Resolution: 10-bit conversion capability
• Sampling Performance: 300 kSPS minimum throughput
• Input Configuration: Single-ended input channel
• Communication Protocol: SPI interface compatibility
• Power Supply Range: 2.7V to 3.6V operation for both analog and digital domains
• Thermal Operating Range: -40°C to 85°C
• Physical Package: 8-SOIC form factor with 3.90mm width
• Surface Mount Compatibility: Standard PCB assembly processes

The MAX1085BESA+ qualifies as a direct substitute based on complete alignment with all specified electrical and mechanical parameters. Substitution does not require circuit redesign or PCB layout modification.

Parameter Comparison

Engineering Selection Recommendations

The MAX1085BESA+ is the qualified substitute for the obsolete MAX1085BESA. Both components share identical electrical specifications and mechanical packaging, ensuring direct functional equivalence without circuit modification.

The MAX1085BESA+ offers the additional advantage of Active product status, ensuring long-term availability and continued manufacturer support. The MAX1085BESA+ achieves ROHS3 compliance, meeting current environmental and regulatory requirements for new product designs and manufacturing operations.

Selection between these parts should be based on procurement timeline and regulatory compliance requirements. For new designs or applications requiring RoHS compliance, the MAX1085BESA+ is the appropriate choice. For legacy system maintenance where RoHS compliance is not mandated, either part satisfies functional requirements.

Frequently Asked Questions (FAQ)

Q: Can the MAX1085BESA+ be used as a direct replacement for the MAX1085BESA?

A: Yes. The MAX1085BESA+ is a direct substitute. All electrical parameters, sampling characteristics, input configuration, communication protocol, supply voltage ranges, operating temperature range, and physical packaging are identical. No circuit redesign or PCB layout modification is required.

Q: What is the primary difference between these two parts?

A: The MAX1085BESA is classified as obsolete with RoHS non-compliant status. The MAX1085BESA+ is an active product with ROHS3 compliance. Both components are functionally equivalent.

Q: Are there any compatibility concerns with the 8-SOIC package?

A: No. Both parts use the identical 8-SOIC (0.154", 3.90mm Width) surface mount package. Standard PCB assembly processes and existing footprints are fully compatible.

Q: What supply voltage range does this ADC support?

A: Both the analog and digital supply domains operate across 2.7V to 3.6V. This range accommodates 3.3V systems and low-power battery-operated applications.

Q: Is the SPI interface compatible with standard microcontroller implementations?

A: Yes. The SPI data interface is compatible with standard microcontroller SPI peripherals. No special interface circuitry is required.

Q: What is the sampling rate specification?

A: Both parts operate at 300 kSPS (kilosamples per second), providing adequate throughput for single-channel data acquisition applications within the specified operating temperature range of -40°C to 85°C.