MAX186BEPP Equivalent & Substitute Parts

Part Overview

The MAX186BEPP is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring moderate sampling rates and flexible input configurations. This component features a Successive Approximation Register (SAR) architecture with support for both differential and single-ended inputs, operating from dual ±5V or single 5V supply rails.

The MAX186BEPP is classified as obsolete, which necessitates identification of functionally equivalent alternatives for new designs or component replenishment. The primary substitute identified maintains core electrical specifications while offering improved product status and compliance certifications.

Substiute Parts

MAX186BEPP

Analog Devices Inc./Maxim IntegratedIn Stock: 811MAX186BEPP Datasheet

Current PartRFQ

MAX186BEPP+

Analog Devices Inc./Maxim IntegratedIn Stock: 886MAX186BEPP+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX186BEPP is determined by strict equivalence across the following critical parameters:

• Resolution (12-bit): The substitute must maintain identical bit depth for signal fidelity and system compatibility.
• Sampling Rate (133 kSPS): Conversion speed must match or exceed the original specification to ensure timing compatibility.
• Input Configuration (4/8 channels, Differential/Single-Ended): The substitute must support the same input flexibility and channel count.
• Data Interface (SPI): Serial communication protocol must remain consistent for firmware and hardware interface compatibility.
• Architecture (SAR): The conversion method must be identical to preserve timing characteristics and noise performance.
• Supply Voltage (±5V, 5V): Power supply requirements must be compatible with existing board designs.
• Package (20-DIP): Physical form factor and pin count must match for direct board-level substitution.

The MAX186BEPP+ qualifies as a direct substitute based on full alignment with all parameters listed above.

Parameter Comparison

Engineering Selection Recommendations

The MAX186BEPP+ is the qualified substitute for the obsolete MAX186BEPP. Selection rationale is based on the following factors:

Product Status: The MAX186BEPP+ maintains active product status with Analog Devices Inc./Maxim Integrated, ensuring continued availability, technical support, and manufacturing consistency. The original MAX186BEPP is obsolete and subject to supply discontinuation.

Regulatory Compliance: The MAX186BEPP+ achieves ROHS3 compliance, meeting current environmental and hazardous substance restrictions. This compliance status is essential for applications subject to regulatory requirements in electronics manufacturing and end-use markets.

Electrical Equivalence: Both components share identical core specifications across resolution, sampling rate, input configuration, data interface, and supply voltage requirements. Direct functional substitution is supported without circuit redesign.

Physical Compatibility: Identical 20-DIP package and through-hole mounting enable direct board-level replacement without PCB layout modifications.

Interface Flexibility: The MAX186BEPP+ supports extended serial interface options (MICROWIRE™, QSPI™, Serial, SPI™) compared to the original SPI-only specification, providing enhanced design flexibility without compromising backward compatibility.

Frequently Asked Questions (FAQ)

Q: Can the MAX186BEPP+ be used as a direct replacement for the MAX186BEPP without circuit modifications?

A: Yes. The MAX186BEPP+ maintains identical electrical specifications for resolution, sampling rate, input configuration, supply voltage, and package form factor. Direct board-level substitution is supported without circuit redesign.

Q: What is the primary reason for substituting the MAX186BEPP?

A: The MAX186BEPP is classified as obsolete. The MAX186BEPP+ is an active product offering equivalent functionality with improved product status, ensuring long-term availability and supply chain reliability.

Q: Are there differences in supply voltage requirements between the two parts?

A: The MAX186BEPP supports both ±5V and single 5V supply configurations. The MAX186BEPP+ operates from dual ±5V supply. Designs using dual ±5V supplies are fully compatible. Designs using single 5V supply require verification of the MAX186BEPP+ single-supply operation capability through the device datasheet.

Q: Does the MAX186BEPP+ support the same serial communication protocols as the original?

A: The MAX186BEPP+ supports SPI along with additional protocols (MICROWIRE™, QSPI™, Serial). Existing SPI-based firmware and hardware interfaces remain fully compatible.

Q: What is the significance of the ROHS3 compliance difference?

A: The MAX186BEPP+ achieves ROHS3 compliance, meeting current environmental regulations for hazardous substance restrictions. This is required for applications subject to regulatory compliance in most electronics markets. The original MAX186BEPP is RoHS non-compliant and may not meet current procurement or end-use requirements.

Q: Are the packages physically identical?

A: Yes. Both components use 20-DIP (0.300", 7.62mm) through-hole packages with identical pin configurations, enabling direct socket-level replacement.