MAX1084AESA Equivalent & Substitute Parts

Part Overview

The MAX1084AESA 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 an internal reference, operating at a 400 kHz sampling rate and requiring 5V supply for both analog and digital circuits. The device is housed in an 8-SOIC surface mount package.

The MAX1084AESA is classified as obsolete. Finding equivalent or substitute parts is necessary to support legacy system maintenance, design updates, or when original inventory becomes unavailable.

Substiute Parts

MAX1084AESA

Analog Devices Inc./Maxim IntegratedIn Stock: 779MAX1084AESA Datasheet

Current PartRFQ

MAX1084BESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1023MAX1084BESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX1084AESA is determined by strict equivalence across the following critical parameters:

• Resolution: 10-bit conversion capability
• Sampling Rate: 400 kHz per second
• Input Configuration: Single-ended input with 1 channel
• Data Interface: SPI serial communication protocol
• Architecture: SAR-based analog-to-digital conversion
• Reference: Internal voltage reference
• Supply Voltages: 5V for both analog and digital domains
• Package: 8-SOIC surface mount form factor
• Operating Temperature: -40°C to 85°C range

The MAX1084BESA+ meets all these parameters and qualifies as a parametric equivalent. Both devices share the same base product number (MAX1084) and are pin-compatible within the 8-SOIC package.

Parameter Comparison

Engineering Selection Recommendations

The MAX1084BESA+ is a direct parametric equivalent to the MAX1084AESA across all functional and electrical specifications. Both devices are obsolete products from the same manufacturer family.

A key distinction exists in regulatory compliance: the MAX1084BESA+ is ROHS3 compliant, whereas the MAX1084AESA is RoHS non-compliant. For new designs or systems requiring RoHS compliance, the MAX1084BESA+ is the appropriate selection. For legacy system maintenance where RoHS compliance is not a requirement, either part may be used interchangeably based on availability and packaging preference (the MAX1084BESA+ is supplied in tube packaging).

Both parts maintain REACH Unaffected status and EAR99 export classification.

Frequently Asked Questions (FAQ)

Q: Can the MAX1084BESA+ directly replace the MAX1084AESA in existing designs?

A: Yes. Both devices are pin-compatible 8-SOIC packages with identical electrical specifications across resolution, sampling rate, input configuration, supply voltages, and operating temperature range. No circuit modifications are required for substitution.

Q: What is the difference between MAX1084AESA and MAX1084BESA+?

A: The primary difference is RoHS compliance status. The MAX1084BESA+ is ROHS3 compliant, while the MAX1084AESA is not. All functional and electrical parameters are identical. The MAX1084BESA+ is supplied in tube packaging.

Q: Are there any package compatibility concerns?

A: No. Both parts use the 8-SOIC (0.154", 3.90mm Width) surface mount package. PCB footprints and reflow soldering profiles are identical.

Q: Why is the MAX1084AESA marked as obsolete?

A: Both the MAX1084AESA and MAX1084BESA+ are obsolete products. For new designs requiring 10-bit SAR ADC functionality with similar specifications, consultation with Analog Devices current product portfolio is recommended. However, for legacy system support, the MAX1084BESA+ remains available as a substitute.

Q: Does the substitute part require different firmware or software configuration?

A: No. The SPI data interface and internal reference configuration are identical. Existing firmware and software implementations require no modification.