MAX122BCWG Equivalent & Substitute Parts

Part Overview

The MAX122BCWG is a 12-bit Analog to Digital Converter (ADC) with a single-ended input, SAR architecture, and 333 kSPS sampling rate, packaged in 24-SOIC surface mount configuration. Manufactured by Analog Devices Inc./Maxim Integrated, this component is classified as obsolete. Due to its obsolete status and limited availability, identifying equivalent and substitute parts is necessary for ongoing design support, production continuity, and system maintenance.

Substiute Parts

MAX122BCWG

Analog Devices Inc./Maxim IntegratedIn Stock: 3461MAX122BCWG Datasheet

Current PartRFQ

MAX122BCWG+

Analog Devices Inc./Maxim IntegratedIn Stock: 957MAX122BCWG+ Datasheet

DirectRFQ

MAX122ACWG+

Analog Devices Inc./Maxim IntegratedIn Stock: 955MAX122ACWG+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX122BCWG are identified based on strict parameter matching across electrical and mechanical specifications. The following criteria determine substitution eligibility:

• Resolution: 12 bits
• Sampling Rate: 333 kSPS
• Number of Inputs: 1
• Input Type: Single Ended
• Architecture: SAR
• Data Interface: Parallel
• Reference Type: External, Internal
• Analog Supply Voltage: 5V, -10.8V ~ 15.75V
• Digital Supply Voltage: 5V
• Operating Temperature: 0°C ~ 70°C
• Package: 24-SOIC
• Mounting Type: Surface Mount

Two substitute parts meet these criteria: MAX122BCWG+ (direct manufacturer equivalent) and MAX122ACWG+ (parametric equivalent). Both maintain identical electrical performance and mechanical compatibility with the original MAX122BCWG.

Parameter Comparison

Engineering Selection Recommendations

MAX122BCWG+ is the direct manufacturer equivalent and primary substitute. It maintains identical electrical and mechanical specifications while offering active product status and ROHS3 compliance, providing improved supply chain availability and regulatory alignment.

MAX122ACWG+ is a parametric equivalent offering identical functional performance and package compatibility. It also carries active product status and ROHS3 compliance, making it suitable for applications where the original MAX122BCWG is no longer available.

Both substitute parts eliminate the obsolescence risk associated with the original MAX122BCWG while maintaining full electrical and mechanical compatibility. Selection between MAX122BCWG+ and MAX122ACWG+ should be based on component availability and procurement lead times.

Frequently Asked Questions (FAQ)

Q: Can MAX122BCWG+ directly replace MAX122BCWG in existing designs?

A: Yes. MAX122BCWG+ is a direct manufacturer equivalent with identical electrical specifications, pin configuration, and 24-SOIC package. No design modifications are required.

Q: What is the difference between MAX122BCWG+ and MAX122ACWG+?

A: Both parts are parametric equivalents with identical electrical performance and package specifications. The primary difference is product status and compliance certification. Both are active products with ROHS3 compliance.

Q: Are there any package or pinout differences between these substitutes?

A: No. All three parts use the 24-SOIC package with identical pinout and mechanical dimensions (0.295", 7.50mm Width). They are pin-for-pin compatible.

Q: Why is the original MAX122BCWG obsolete?

A: The MAX122BCWG is classified as obsolete by the manufacturer. Substitute parts MAX122BCWG+ and MAX122ACWG+ are active products offering equivalent functionality with improved availability and regulatory compliance.

Q: Do the substitute parts meet RoHS requirements?

A: Yes. Both MAX122BCWG+ and MAX122ACWG+ are ROHS3 compliant, whereas the original MAX122BCWG is RoHS non-compliant. This provides regulatory advantage for new designs and production runs.

Q: Are the supply voltage specifications identical across all three parts?

A: Yes. Analog supply voltage (5V, -10.8V ~ 15.75V) and digital supply voltage (5V) are identical for MAX122BCWG, MAX122BCWG+, and MAX122ACWG+.