MAX199BCWI Equivalent & Substitute Parts

Part Overview

The MAX199BCWI is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring 8 single-ended analog inputs with a 100 kHz sampling rate. The device features a successive approximation register (SAR) architecture with integrated multiplexer and sample-and-hold functionality, operating from a single 5V supply with parallel data output.

The MAX199BCWI is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for new designs, maintenance applications, and production continuity where original components are no longer readily procurable.

Substiute Parts

MAX199BCWI

Analog Devices Inc./Maxim IntegratedIn Stock: 2073MAX199BCWI Datasheet

Current PartRFQ

MAX199BCWI+

Analog Devices Inc./Maxim IntegratedIn Stock: 982MAX199BCWI+ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX199BCWI is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit ADC capability
• Channel Count: 8 single-ended analog inputs
• Sampling Rate: 100 kHz minimum
• Architecture: SAR-based conversion
• Data Interface: Parallel output
• Supply Voltage: 5V single supply operation
• Package: 28-SOIC surface mount form factor
• Operating Temperature: 0°C to 70°C range

The MAX199BCWI+ qualifies as a direct substitute based on matching all critical electrical and mechanical parameters while maintaining the same base product number (MAX199) and package specification.

Parameter Comparison

Engineering Selection Recommendations

The MAX199BCWI+ is the direct equivalent substitute for the MAX199BCWI. Both devices share identical functional specifications across resolution, channel count, sampling rate, architecture, and package form factor.

The MAX199BCWI+ offers the following advantages for new designs and production continuity:

• Active Product Status: The MAX199BCWI+ maintains active manufacturing status, ensuring long-term availability and supply chain reliability compared to the obsolete MAX199BCWI.
• RoHS3 Compliance: The MAX199BCWI+ meets ROHS3 environmental standards, whereas the original MAX199BCWI is non-compliant. This compliance is required for applications subject to environmental regulations.
• Expanded Supply Voltage Tolerance: The MAX199BCWI+ operates across 4.75V to 5.25V, providing improved tolerance margins compared to the nominal 5V specification of the MAX199BCWI.

Both devices maintain identical electrical performance, pinout compatibility, and mechanical specifications, enabling direct substitution without circuit redesign.

Frequently Asked Questions (FAQ)

Q: Can the MAX199BCWI+ be used as a direct replacement for the MAX199BCWI?

A: Yes. The MAX199BCWI+ is a direct equivalent substitute. Both devices feature identical 12-bit resolution, 8-channel single-ended input configuration, 100 kHz sampling rate, SAR architecture, parallel data interface, and 28-SOIC package. Pinout and electrical performance are equivalent, enabling direct substitution without circuit modification.

Q: What is the difference between the MAX199BCWI and MAX199BCWI+?

A: The primary differences are product status and compliance certification. The MAX199BCWI is obsolete and RoHS non-compliant, while the MAX199BCWI+ is an active product with ROHS3 compliance. The MAX199BCWI+ also specifies a wider supply voltage tolerance range (4.75V to 5.25V) compared to the nominal 5V of the original device.

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

A: No. Both the MAX199BCWI and MAX199BCWI+ use the 28-SOIC surface mount package with identical pinout and mechanical specifications. No PCB layout modifications are required for substitution.

Q: Why should I use the MAX199BCWI+ instead of the MAX199BCWI?

A: The MAX199BCWI+ is recommended for new designs and production applications due to active manufacturing status, ensuring supply chain continuity. Additionally, ROHS3 compliance is required for applications subject to environmental regulations. The expanded supply voltage tolerance provides improved operational margins.

Q: What are the critical parameters that determine substitution eligibility?

A: Substitution eligibility is determined by matching resolution (12-bit), channel count (8 single-ended), sampling rate (100 kHz), architecture (SAR), data interface (parallel), supply voltage (5V operation), package (28-SOIC), and operating temperature range (0°C to 70°C).