MAX178BCNG Equivalent & Substitute Parts

Part Overview

The MAX178BCNG is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. It features a Successive Approximation Register (SAR) architecture with a 17 kSPS sampling rate and operates with external voltage references. The device is packaged in a 24-pin DIP configuration suitable for through-hole mounting.

The MAX178BCNG is classified as obsolete. Finding equivalent or substitute parts is necessary to support legacy system maintenance, design updates, or when original inventory becomes unavailable. The active substitute maintains identical electrical and mechanical specifications while offering improved compliance status.

Substiute Parts

MAX178BCNG

Analog Devices Inc./Maxim IntegratedIn Stock: 889MAX178BCNG Datasheet

Current PartRFQ

MAX178BCNG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1044MAX178BCNG+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX178BCNG is determined by strict equivalence across the following critical parameters:

• Resolution: 12 bits
• Sampling Rate: 17 kSPS
• Input Configuration: 1 single-ended input
• Data Interface: Parallel
• Architecture: SAR with external reference
• Supply Voltages: ±5V analog, 5V digital
• Operating Temperature: 0°C ~ 70°C
• Package: 24-DIP through-hole

The MAX178BCNG+ is a direct functional equivalent that meets all electrical and mechanical requirements. The primary distinction is product status and compliance certification, not performance or pinout characteristics.

Parameter Comparison

Engineering Selection Recommendations

The MAX178BCNG+ is the direct active substitute for the MAX178BCNG. Both devices are electrically and mechanically identical, with identical pinout, signal timing, and functional performance. Selection between them is determined by application requirements and regulatory compliance:

• MAX178BCNG: Use only when legacy inventory is available or when RoHS non-compliance is acceptable for the application.
• MAX178BCNG+: Preferred for new designs and ongoing production. Offers ROHS3 compliance and active product status, ensuring long-term availability and supply chain stability.

Both parts are suitable for direct socket replacement without circuit modification.

Frequently Asked Questions (FAQ)

Q: Can MAX178BCNG+ be used as a direct replacement for MAX178BCNG?

A: Yes. The MAX178BCNG+ is a direct functional equivalent with identical electrical specifications, pinout, and performance characteristics. No circuit modifications are required for substitution.

Q: What is the difference between MAX178BCNG and MAX178BCNG+?

A: The primary differences are product status and compliance certification. MAX178BCNG is obsolete and RoHS non-compliant, while MAX178BCNG+ is active and ROHS3 compliant. Electrical and mechanical specifications are identical.

Q: Are there any package differences between these parts?

A: Both parts use the same 24-DIP (0.300", 7.62mm) through-hole package. The MAX178BCNG+ is supplied in tube packaging, while the MAX178BCNG uses standard packaging. This does not affect electrical compatibility or board-level integration.

Q: What supply voltages are required for operation?

A: The device requires ±5V for analog supply (with operating range 11.4V ~ 15.75V) and 5V for digital supply. Both substitute parts maintain identical voltage specifications.

Q: Is the external reference requirement the same for both parts?

A: Yes. Both MAX178BCNG and MAX178BCNG+ require an external voltage reference. Reference configuration and specifications are identical between the two parts.

Q: What is the operating temperature range?

A: Both parts operate across 0°C ~ 70°C. Temperature specifications are identical and do not differ between the original and substitute part.