MAX1247BEEE Equivalent & Substitute Parts

Part Overview

The MAX1247BEEE 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 2 or 4 input channels with differential and single-ended input support, operating across a supply voltage range of 2.7V to 5.25V. The part is classified as obsolete, making identification of functionally equivalent alternatives essential for ongoing system support and new design implementations.

Substiute Parts

MAX1247BEEE

Analog Devices Inc./Maxim IntegratedIn Stock: 2314MAX1247BEEE Datasheet

Current PartRFQ

MAX1247BEEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 3426MAX1247BEEE+ Datasheet

DirectRFQ

MAX1247AEEE+

Analog Devices Inc./Maxim IntegratedIn Stock: 816MAX1247AEEE+ Datasheet

Parametric EquivalentRFQ

ADS7841E

Texas InstrumentsIn Stock: 20797ADS7841E Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX1247BEEE is determined by the following critical parameters: 12-bit resolution, SAR architecture, SPI data interface, external reference type, and 16-SSOP package compatibility. The substitute parts are grouped into two categories based on their relationship to the main part:

Direct Manufacturer Substitutes: Parts maintaining identical electrical specifications and package form factor, differing only in product status or packaging configuration.

Parametric Equivalents: Parts from alternative manufacturers meeting core functional requirements with minor variations in sampling rate or input channel configuration, while maintaining package compatibility and interface standards.

Parameter Comparison

Engineering Selection Recommendations

MAX1247BEEE+ (Direct Manufacturer Substitute): This part is the primary replacement for the obsolete MAX1247BEEE. It maintains identical electrical specifications and package form factor while offering active product status and ROHS3 compliance. The only difference is packaging configuration (Tube). This substitute is suitable for all applications currently using MAX1247BEEE.

MAX1247AEEE+ (Parametric Equivalent): This part provides identical electrical and functional specifications to MAX1247BEEE while offering active product status and ROHS3 compliance. It serves as an alternative within the Analog Devices MAX1247 product family and is interchangeable for applications requiring the same performance characteristics.

ADS7841E (Cross-Manufacturer Parametric Equivalent): This Texas Instruments part meets core functional requirements with 12-bit resolution, SAR architecture, SPI interface, and 16-SSOP package compatibility. The ADS7841E features a higher sampling rate (200 kSPS versus 133 kSPS) and extended operating temperature range (-40°C to 125°C). However, it supports only single-ended inputs (not differential) and operates at discrete supply voltages (2.7V ~ 3.6V or 5V) rather than the continuous range of MAX1247BEEE. Selection of ADS7841E requires verification that application requirements do not mandate differential input capability or intermediate supply voltages.

Frequently Asked Questions (FAQ)

Q: Can MAX1247BEEE+ be used as a direct replacement for MAX1247BEEE?

A: Yes. MAX1247BEEE+ is electrically and functionally identical to MAX1247BEEE, with the same 12-bit resolution, 133 kSPS sampling rate, input channel configuration, and supply voltage specifications. The primary difference is product status (Active versus Obsolete) and packaging format (Tube). Pin-for-pin compatibility is maintained.

Q: What are the key differences between MAX1247AEEE+ and MAX1247BEEE?

A: MAX1247AEEE+ and MAX1247BEEE share identical electrical specifications: 12-bit resolution, 133 kSPS sampling rate, 2/4 input channels, differential and single-ended input support, and 16-SSOP package. The distinction lies in product status (Active versus Obsolete) and RoHS compliance (ROHS3 Compliant versus non-compliant).

Q: Is ADS7841E compatible with MAX1247BEEE in all applications?

A: ADS7841E provides 12-bit resolution, SAR architecture, SPI interface, and 16-SSOP package compatibility. However, it differs in three aspects: (1) sampling rate is 200 kSPS instead of 133 kSPS, (2) input type is single-ended only (no differential support), and (3) supply voltage operates at discrete levels (2.7V ~ 3.6V or 5V) rather than continuous range. Applications requiring differential inputs or intermediate supply voltages cannot use ADS7841E as a substitute.

Q: What is the significance of RoHS compliance in selecting a substitute?

A: MAX1247BEEE is RoHS non-compliant, while MAX1247BEEE+, MAX1247AEEE+, and ADS7841E are ROHS3 compliant. For applications subject to RoHS regulations or customer requirements mandating RoHS compliance, the compliant alternatives are necessary.

Q: Are all substitute parts available in the same package?

A: Yes. All substitute parts (MAX1247BEEE+, MAX1247AEEE+, and ADS7841E) are packaged in 16-SSOP (0.154", 3.90mm Width), maintaining mechanical and electrical compatibility with MAX1247BEEE PCB layouts.

Q: Which substitute should be selected for new designs?

A: For new designs requiring Analog Devices components, MAX1247BEEE+ or MAX1247AEEE+ are recommended due to identical specifications and active product status. For designs open to cross-manufacturer solutions, ADS7841E is viable if application requirements align with its single-ended input limitation and discrete supply voltage operation.