MAX903CSA-T Equivalent & Substitute Parts

Part Overview

The MAX903CSA-T is a single-channel comparator with integrated latch functionality, designed for TTL-compatible applications requiring precision voltage comparison and signal latching. Manufactured by Analog Devices Inc./Maxim Integrated, this device operates across a wide supply voltage range (5V ~ 10V single supply, ±2.5V ~ 5V dual supply) with low input offset voltage and controlled quiescent current consumption.

The MAX903CSA-T is classified as obsolete. Identifying equivalent substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support long-term product availability for applications currently utilizing this comparator.

Substiute Parts

MAX903CSA-T

Analog Devices Inc./Maxim IntegratedIn Stock: 962MAX903CSA-T Datasheet

Current PartRFQ

MAX903CSA+T

Analog Devices Inc./Maxim IntegratedIn Stock: 5473MAX903CSA+T Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the MAX903CSA-T is determined by strict equivalence across the following critical parameters:

• Functional Type: Single-channel comparator with integrated latch
• Output Interface: TTL-compatible output
• Supply Voltage Range: 5V ~ 10V (single supply) and ±2.5V ~ 5V (dual supply)
• Input Offset Voltage: 4mV maximum at ±5V
• Input Bias Current: 10µA maximum at ±5V
• Quiescent Current: 4mA, 3mA, 1.5mA maximum ratings
• Common-Mode Rejection Ratio (CMRR): 82.5dB typical
• Power Supply Rejection Ratio (PSRR): 80dB typical
• Package: 8-SOIC surface mount
• Operating Temperature Range: 0°C ~ 70°C
• Regulatory Compliance: ROHS3 compliant, REACH unaffected

Substitute parts must match all electrical specifications, package configuration, and compliance certifications. Packaging format differences (tube vs. tape & reel) do not affect functional equivalence.

Parameter Comparison

Engineering Selection Recommendations

The MAX903CSA+T is a direct functional equivalent to the MAX903CSA-T. Both parts are manufactured by Analog Devices Inc./Maxim Integrated and share identical electrical specifications, package configuration, and regulatory compliance status (ROHS3 compliant, REACH unaffected).

The primary distinction between these parts is product status and packaging format. The MAX903CSA-T is classified as obsolete, while the MAX903CSA+T maintains active production status. The MAX903CSA+T is supplied in tape & reel format, whereas the MAX903CSA-T is supplied in tube format. This packaging difference does not affect electrical performance or functional compatibility.

For new designs or production continuity, the MAX903CSA+T is the recommended selection due to its active product status and assured long-term availability.

Frequently Asked Questions (FAQ)

Q: Can the MAX903CSA+T replace the MAX903CSA-T in existing designs?

A: Yes. The MAX903CSA+T is electrically and functionally identical to the MAX903CSA-T. All electrical parameters, including supply voltage range, input offset voltage, input bias current, quiescent current, CMRR, and PSRR specifications are identical. The 8-SOIC package footprint is identical, enabling direct PCB-level substitution.

Q: What is the difference between MAX903CSA-T and MAX903CSA+T?

A: The parts are electrically equivalent. The primary differences are: (1) Product Status—MAX903CSA-T is obsolete; MAX903CSA+T is active production; (2) Packaging Format—MAX903CSA-T is supplied in tube; MAX903CSA+T is supplied in tape & reel (TR). These differences do not affect functional performance or circuit compatibility.

Q: Are there any compliance or certification differences between these parts?

A: No. Both parts carry identical regulatory certifications: ROHS3 compliant, REACH unaffected, MSL 1 (unlimited moisture sensitivity level), and EAR99 export classification.

Q: What is the operating temperature range for these comparators?

A: Both the MAX903CSA-T and MAX903CSA+T operate across 0°C to 70°C. This temperature range must be verified against your application's thermal requirements.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes, provided your supply chain and procurement processes accommodate the tape & reel packaging format of the MAX903CSA+T. The electrical and mechanical compatibility is complete.