MAX149BCAP Equivalent & Substitute Parts

Part Overview

The MAX149BCAP is a 10-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring SAR (Successive Approximation Register) architecture. The device features 4 or 8 configurable input channels with both differential and single-ended input support, operating across a 2.7V to 5.25V supply range.

The MAX149BCAP is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this component.

Substiute Parts

MAX149BCAP

Analog Devices Inc./Maxim IntegratedIn Stock: 2134MAX149BCAP Datasheet

Current PartRFQ

MAX149BCAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3488MAX149BCAP+ Datasheet

DirectRFQ

MAX149ACAP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3226MAX149ACAP+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the MAX149BCAP are identified based on strict electrical and mechanical parameter equivalence. The substitution criteria are:

• Resolution: 10 bits
• Sampling Rate: 133 kSPS
• Input Channels: 4 or 8 configurable
• Input Type: Differential and Single Ended support
• Data Interface: SPI
• Architecture: SAR
• Reference Type: External and Internal
• Supply Voltage Range: 2.7V ~ 5.25V (both analog and digital)
• Operating Temperature: 0°C ~ 70°C
• Package: 20-SSOP form factor
• Mounting: Surface Mount

All identified substitutes maintain identical electrical performance and physical packaging, ensuring direct functional replacement in existing designs.

Parameter Comparison

Engineering Selection Recommendations

The MAX149BCAP is obsolete and no longer in active production. For new designs or component replenishment, MAX149BCAP+ and MAX149ACAP+ are the recommended substitutes, as both maintain identical electrical and mechanical specifications while offering active product status.

MAX149BCAP+ is the direct successor to MAX149BCAP, maintaining the same performance characteristics while achieving ROHS3 compliance. This part is available in tube packaging and carries active product status.

MAX149ACAP+ provides parametric equivalence with identical electrical performance and ROHS3 compliance. This part is also available in tube packaging with active product status.

Both substitute parts are manufactured by the same supplier (Analog Devices Inc./Maxim Integrated) and are fully compatible with existing MAX149BCAP designs without circuit modifications.

Frequently Asked Questions (FAQ)

Q: Can MAX149BCAP+ directly replace MAX149BCAP in existing designs?

A: Yes. MAX149BCAP+ is electrically and mechanically identical to MAX149BCAP. All electrical parameters, pin configurations, and package dimensions are equivalent. No circuit modifications are required.

Q: What is the difference between MAX149BCAP+ and MAX149ACAP+?

A: Both parts are parametrically equivalent with identical electrical specifications, sampling rates, input configurations, and package form factors. The primary difference is product designation. Both are active products with ROHS3 compliance.

Q: Why is MAX149BCAP marked as obsolete?

A: MAX149BCAP has reached end-of-life status. Analog Devices Inc./Maxim Integrated has transitioned production to active variants (MAX149BCAP+ and MAX149ACAP+) that maintain full electrical compatibility while meeting current regulatory requirements.

Q: Are there any compliance differences between the original and substitute parts?

A: Yes. MAX149BCAP is RoHS non-compliant, while both MAX149BCAP+ and MAX149ACAP+ are ROHS3 compliant. Both substitute parts maintain REACH Unaffected and EAR99 ECCN status identical to the original.

Q: What packaging options are available for substitutes?

A: MAX149BCAP+ and MAX149ACAP+ are supplied in tube packaging, whereas MAX149BCAP was supplied in bulk. Both maintain the same 20-SSOP physical form factor suitable for surface mount assembly.

Q: Are the substitute parts pin-compatible with MAX149BCAP?

A: Yes. All three parts use the 20-SSOP package with identical pin assignments, ensuring direct PCB compatibility without layout modifications.