MAX145BCPA+ Equivalent & Substitute Parts

Part Overview

The MAX145BCPA+ is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-channel data acquisition applications. This SAR (Successive Approximation Register) architecture device operates with pseudo-differential input and communicates via SPI interface. The component is currently in active production status with 783 units available in new original condition. Finding equivalent parts may be necessary for supply chain continuity, design flexibility, or specific application requirements.

Substiute Parts

MAX145BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 878MAX145BCPA+ Datasheet

Current PartRFQ

MAX145BCPA+

Analog Devices Inc./Maxim IntegratedIn Stock: 878MAX145BCPA+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX145BCPA+ is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit conversion capability
• Sampling Rate: 108 kSPS minimum performance
• Input Configuration: Single pseudo-differential input channel
• Data Interface: SPI serial communication protocol
• Architecture: SAR-based conversion method
• Reference Type: External reference requirement
• Supply Voltage Ranges: Analog and digital supplies both 2.7V ~ 5.25V
• Package: 8-DIP through-hole form factor
• Operating Temperature: 0°C ~ 70°C range

Only components matching all specified parameters across these categories qualify as direct substitutes. The MAX145BCPA+ represents the current direct equivalent within the Maxim Integrated product line for this specific application profile.

Parameter Comparison

Engineering Selection Recommendations

The MAX145BCPA+ maintains active production status with confirmed inventory availability. The component carries ROHS3 compliance certification and REACH unaffected status, meeting current environmental and regulatory requirements for industrial and commercial applications. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage and handling. Selection of this part is supported by its active product lifecycle status and full compliance documentation.

Frequently Asked Questions (FAQ)

Q: What defines a valid substitute for the MAX145BCPA+?

A: A valid substitute must match all critical parameters: 12-bit resolution, 108 kSPS sampling rate, single pseudo-differential input, SPI interface, SAR architecture, external reference type, 2.7V ~ 5.25V supply voltage range for both analog and digital supplies, 8-DIP through-hole package, and 0°C ~ 70°C operating temperature range.

Q: Can I use a different package variant of the MAX145?

A: No. Package type is a critical substitution parameter. The MAX145BCPA+ specifies 8-DIP (0.300", 7.62mm) through-hole mounting. Alternative package variants would require PCB redesign and are not considered direct substitutes.

Q: Is the MAX145BCPA+ suitable for extended temperature applications?

A: The MAX145BCPA+ operates within 0°C ~ 70°C range. Applications requiring extended temperature operation (industrial or military grades) would require alternative part selection outside this specification.

Q: What is the significance of the external reference type?

A: The external reference requirement means the ADC does not include an internal voltage reference. System design must provide an external reference voltage source. This is a fixed architectural characteristic and cannot be substituted with internal reference variants.

Q: Are there supply voltage flexibility options?

A: The MAX145BCPA+ requires both analog and digital supplies within 2.7V ~ 5.25V. This range accommodates 3.3V and 5V logic systems. Supplies outside this range are not compatible.