MAX1084ACSA Equivalent & Substitute Parts

Part Overview

The MAX1084ACSA is a 10-bit Analog to Digital Converter (ADC) manufactured by Analog Devices Inc./Maxim Integrated, designed for single-ended input data acquisition applications. This component features a Successive Approximation Register (SAR) architecture with a 400 kSPS sampling rate and SPI data interface, operating from a single 5V supply in an 8-SOIC surface mount package.

The MAX1084ACSA is classified as obsolete. Identifying equivalent and substitute parts is necessary to ensure continued availability for production, maintenance, and new design implementations where this component specification remains functionally required.

Substiute Parts

MAX1084ACSA
Analog Devices Inc./Maxim IntegratedIn Stock: 1025MAX1084ACSA Datasheet
MAX1084ACSA
Current Part
MAX1084BCSA+
Analog Devices Inc./Maxim IntegratedIn Stock: 1071MAX1084BCSA+ Datasheet
MAX1084BCSA+
Parametric Equivalent

Key Parameters

Parameter Value
Number of Bits 10
Sampling Rate (Per Second) 400k
Number of Inputs 1
Input Type Single Ended
Data Interface SPI
Architecture SAR
Reference Type Internal
Voltage - Supply, Analog 5V
Voltage - Supply, Digital 5V
Operating Temperature 0°C ~ 70°C
Package / Case 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount

Substitute Part Grouping Explanation

Substitution of the MAX1084ACSA is determined by strict equivalence across the following critical parameters:

  • Resolution: 10-bit ADC
  • Sampling Rate: 400 kSPS minimum
  • Input Configuration: Single-ended, single input
  • Interface Protocol: SPI serial communication
  • Architecture: SAR-based conversion
  • Supply Voltage: 5V analog and digital
  • Package: 8-SOIC form factor
  • Operating Temperature Range: 0°C to 70°C

The MAX1084BCSA+ meets all these criteria and is classified as a parametric equivalent. Both parts share identical electrical specifications, package geometry, and pinout compatibility, enabling direct substitution at the component level.

Parameter Comparison

Parameter MAX1084ACSA MAX1084BCSA+
Manufacturer Analog Devices Inc./Maxim Integrated Analog Devices Inc./Maxim Integrated
Number of Bits 10 10
Sampling Rate (Per Second) 400k 400k
Number of Inputs 1 1
Input Type Single Ended Single Ended
Data Interface SPI SPI
Configuration S/H-ADC S/H-ADC
Architecture SAR SAR
Reference Type Internal Internal
Voltage - Supply, Analog 5V 5V
Voltage - Supply, Digital 5V 5V
Operating Temperature 0°C ~ 70°C 0°C ~ 70°C
Package / Case 8-SOIC (0.154", 3.90mm Width) 8-SOIC (0.154", 3.90mm Width)
Mounting Type Surface Mount Surface Mount
Product Status Obsolete Obsolete

Engineering Selection Recommendations

The MAX1084BCSA+ is a direct parametric equivalent to the MAX1084ACSA. Both components are classified as obsolete products from the same manufacturer family.

A key distinction exists in regulatory compliance: the MAX1084BCSA+ is ROHS3 compliant, whereas the MAX1084ACSA is RoHS non-compliant. For applications subject to RoHS directives or environmental regulations, the MAX1084BCSA+ provides compliance assurance while maintaining full electrical and mechanical compatibility.

Both parts share identical electrical performance characteristics, pinout configuration, and package specifications. Selection between these parts should be based on compliance requirements and component availability rather than functional differences.

Frequently Asked Questions (FAQ)

Q: Can the MAX1084BCSA+ replace the MAX1084ACSA in existing designs?

A: Yes. The MAX1084BCSA+ is a direct parametric equivalent with identical electrical specifications, pinout, and package dimensions. No circuit modifications are required for substitution.

Q: What is the primary difference between these two parts?

A: The MAX1084BCSA+ is ROHS3 compliant, while the MAX1084ACSA is RoHS non-compliant. Electrical performance and physical characteristics are identical.

Q: Are there any package or mounting differences?

A: No. Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package with identical pinout and land pattern compatibility.

Q: Why is the MAX1084ACSA listed as obsolete?

A: The MAX1084ACSA is an obsolete product designation from Analog Devices Inc./Maxim Integrated. The MAX1084BCSA+ represents the current equivalent offering within the MAX1084 product family.

Q: What are the critical parameters for substitution compatibility?

A: Resolution (10-bit), sampling rate (400 kSPS), single-ended single input configuration, SPI interface, 5V supply voltage, SAR architecture, and 8-SOIC package form factor must all match for direct substitution.

Q: Is the operating temperature range identical?

A: Yes. Both parts operate across the 0°C to 70°C temperature range with identical performance characteristics within this specification.

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