MAX1245BEAP Equivalent & Substitute Parts

Part Overview

The MAX1245BEAP is a 12-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring multi-channel input processing. This SAR (Successive Approximation Register) architecture device supports 4 or 8 differential and single-ended inputs with SPI data interface and operates across a 2.375V to 3.3V supply voltage range.

The MAX1245BEAP is classified as obsolete. Identifying equivalent substitute parts is necessary to maintain design continuity, ensure component availability, and support ongoing production or maintenance requirements for systems utilizing this ADC architecture.

Substiute Parts

MAX1245BEAP
Analog Devices Inc./Maxim IntegratedIn Stock: 1128MAX1245BEAP Datasheet
MAX1245BEAP
Current Part
MAX1245BEAP+
Analog Devices Inc./Maxim IntegratedIn Stock: 693MAX1245BEAP+ Datasheet
MAX1245BEAP+
Direct

Key Parameters

Parameter Value
Resolution 12 Bit
Sampling Rate 100k Samples Per Second
Number of Inputs 4, 8
Input Type Differential, Single Ended
Data Interface SPI
Architecture SAR
Reference Type External
Analog Supply Voltage 2.375V ~ 3.3V
Digital Supply Voltage 2.375V ~ 3.3V
Operating Temperature Range -40°C ~ 85°C
Package 20-SSOP (0.209", 5.30mm Width)
Mounting Type Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the MAX1245BEAP are identified based on electrical and mechanical parameter equivalence. The critical parameters determining substitution compatibility are:

  • Resolution: 12-bit
  • Sampling Rate: 100k samples per second
  • Input Configuration: 4 or 8 channels supporting differential and single-ended modes
  • Data Interface: SPI protocol
  • Architecture: SAR-based conversion
  • Reference: External reference requirement
  • Supply Voltage Range: 2.375V to 3.3V for both analog and digital supplies
  • Package: 20-SSOP form factor
  • Operating Temperature: -40°C to 85°C

The MAX1245BEAP+ is identified as a direct substitute, maintaining identical electrical specifications and package configuration while offering improved product status and compliance certifications.

Parameter Comparison

Parameter MAX1245BEAP (Main Part) MAX1245BEAP+ (Substitute)
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Resolution 12 Bit 12 Bit
Sampling Rate 100k Samples Per Second 100k Samples Per Second
Number of Inputs 4, 8 4, 8
Input Type Differential, Single Ended Differential, Single Ended
Data Interface SPI SPI
Architecture SAR SAR
Reference Type External External
Analog Supply Voltage 2.375V ~ 3.3V 2.375V ~ 3.3V
Digital Supply Voltage 2.375V ~ 3.3V 2.375V ~ 3.3V
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 20-SSOP (0.209", 5.30mm Width) 20-SSOP (0.209", 5.30mm Width)
Mounting Type Surface Mount Surface Mount
Product Status Obsolete Active
RoHS Status RoHS non-compliant ROHS3 Compliant
Moisture Sensitivity Level 1 (Unlimited) 1 (Unlimited)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

The MAX1245BEAP+ is the direct substitute for the MAX1245BEAP. Both parts maintain identical electrical and mechanical specifications, ensuring pin-for-pin and functional compatibility. The MAX1245BEAP+ offers two significant advantages:

  1. Active Product Status: The MAX1245BEAP+ is actively manufactured and supported, providing reliable long-term availability compared to the obsolete MAX1245BEAP.

  2. Regulatory Compliance: The MAX1245BEAP+ is ROHS3 compliant, meeting current environmental and regulatory requirements, whereas the MAX1245BEAP is RoHS non-compliant.

Both parts maintain REACH Unaffected status and identical moisture sensitivity levels. Selection of the MAX1245BEAP+ is recommended for new designs and ongoing production to ensure compliance with current standards and component availability.

Frequently Asked Questions (FAQ)

Q: Are the MAX1245BEAP and MAX1245BEAP+ pin-compatible?

A: Yes. Both parts use the 20-SSOP package with identical pinout and electrical specifications, enabling direct substitution without PCB redesign.

Q: What is the primary difference between these parts?

A: The MAX1245BEAP+ is the active production variant with ROHS3 compliance, while the MAX1245BEAP is obsolete and RoHS non-compliant. Electrical and mechanical specifications are identical.

Q: Can the MAX1245BEAP+ be used in existing designs using the MAX1245BEAP?

A: Yes. The MAX1245BEAP+ maintains full electrical and functional equivalence, including 12-bit resolution, 100k sampling rate, SPI interface, and identical supply voltage requirements.

Q: What packaging options are available for the substitute part?

A: The MAX1245BEAP+ is supplied in Tube packaging, maintaining the 20-SSOP surface mount form factor.

Q: Are there any temperature or supply voltage differences?

A: No. Both parts operate identically across the -40°C to 85°C temperature range and require 2.375V to 3.3V for analog and digital supplies.

Q: What is the moisture sensitivity level for both parts?

A: Both the MAX1245BEAP and MAX1245BEAP+ have MSL 1 (Unlimited), indicating no moisture sensitivity restrictions.

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