MAX188BEWP Equivalent & Substitute Parts

Part Overview

The MAX188BEWP is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring SAR (Successive Approximation Register) architecture. This component features 4 or 8 differential/single-ended input channels with a 133 kHz sampling rate and SPI data interface. The MAX188BEWP is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support, redesigns, and inventory management.

Substiute Parts

MAX188BEWP

Analog Devices Inc./Maxim IntegratedIn Stock: 1126MAX188BEWP Datasheet

Current PartRFQ

MAX188BEWP+

Analog Devices Inc./Maxim IntegratedIn Stock: 3279MAX188BEWP+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX188BEWP is determined by strict alignment of the following electrical and mechanical parameters:

• Resolution: 12 bits
• Sampling Rate: 133 kHz
• Input Configuration: 4 or 8 channels supporting differential and single-ended modes
• Data Interface: SPI-compatible protocol
• Supply Voltage: Dual ±5V or single 5V operation
• Package: 20-SOIC form factor
• Operating Temperature Range: -40°C to 85°C

The MAX188BEWP+ qualifies as a direct substitute based on matching all critical electrical specifications and identical package geometry. The primary distinction is product status and compliance certification.

Parameter Comparison

Engineering Selection Recommendations

The MAX188BEWP+ is the direct functional equivalent for MAX188BEWP applications. Selection should be based on the following criteria:

• Product Status: The MAX188BEWP+ maintains active production status, ensuring long-term availability and supply chain stability compared to the obsolete MAX188BEWP.
• Compliance: The MAX188BEWP+ achieves ROHS3 compliance, meeting current environmental and regulatory requirements. The original MAX188BEWP is non-compliant with modern RoHS standards.
• Electrical Compatibility: Both devices share identical resolution, sampling rate, input configuration, operating temperature range, and package specifications.
• Data Interface: The MAX188BEWP+ supports extended protocol options (MICROWIRE™, QSPI™, Serial, SPI™) while maintaining full SPI compatibility with legacy designs.

For new designs or system updates, the MAX188BEWP+ is the appropriate selection. For legacy system maintenance requiring exact form-factor and electrical compatibility, the MAX188BEWP+ provides direct substitution with improved compliance status.

Frequently Asked Questions (FAQ)

Q: Can MAX188BEWP+ directly replace MAX188BEWP in existing designs?

A: Yes. Both devices share identical 12-bit resolution, 133 kHz sampling rate, 4/8-channel input configuration, SPI data interface, and 20-SOIC package geometry. Pin-for-pin compatibility is maintained.

Q: What is the primary advantage of MAX188BEWP+ over MAX188BEWP?

A: The MAX188BEWP+ is in active production status with ROHS3 compliance certification. The MAX188BEWP is obsolete and non-compliant with current environmental standards.

Q: Are there supply voltage differences between these parts?

A: The MAX188BEWP supports both ±5V and single 5V supply configurations. The MAX188BEWP+ operates on dual ±5V supply. Verify your application's power supply architecture before substitution.

Q: Does the MAX188BEWP+ support the same data interfaces as MAX188BEWP?

A: The MAX188BEWP+ supports SPI along with additional protocols (MICROWIRE™, QSPI™, Serial). SPI compatibility is maintained, ensuring existing firmware and interface logic remain functional.

Q: Are the operating temperature ranges identical?

A: Yes. Both devices operate across -40°C to 85°C, maintaining thermal performance specifications across industrial and commercial applications.

Q: What packaging options are available?

A: Both devices are supplied in 20-SOIC surface-mount packages with 0.295" (7.50mm) width. The MAX188BEWP+ is available in tube packaging.