MAX6191CESA+ Equivalent & Substitute Parts

Part Overview

The MAX6191CESA+ is a series voltage reference integrated circuit manufactured by Analog Devices Inc./Maxim Integrated. This component provides a fixed 2.048V output and is classified as a Power Management (PMIC) device. The part is currently in active production status with 977 units available in new original inventory. Series voltage references are essential components in precision analog circuits requiring stable, temperature-compensated reference voltages for data acquisition systems, instrumentation, and analog-to-digital converter applications.

Substiute Parts

MAX6191CESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1025MAX6191CESA+ Datasheet

Current PartRFQ

MAX6191CESA+

Analog Devices Inc./Maxim IntegratedIn Stock: 1025MAX6191CESA+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the MAX6191CESA+ is determined by strict equivalence across the following critical parameters:

• Reference Type: Series
• Output Type: Fixed
• Voltage - Output (Fixed): 2.048V
• Current - Output: 500 µA
• Tolerance: ±0.49%
• Temperature Coefficient: 25ppm/°C
• Noise specifications (0.1Hz to 10Hz and 10Hz to 10kHz)
• Voltage - Input range: 2.5V ~ 12.6V
• Current - Supply: 35µA
• Operating Temperature range: -40°C ~ 85°C
• Package / Case: 8-SOIC (0.154", 3.90mm Width)

Only components matching all of these parameters across electrical performance, thermal characteristics, and physical packaging are considered direct parametric equivalents.

Parameter Comparison

Engineering Selection Recommendations

The MAX6191CESA+ maintains active production status with confirmed inventory availability. Both the primary part and its parametric equivalent carry ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. The MSL rating of 1 (Unlimited) indicates no moisture sensitivity constraints during storage and handling. Selection between equivalent parts should be based on supplier availability, lead time, and procurement cost, as all electrical and mechanical specifications are identical.

Frequently Asked Questions (FAQ)

Q: What defines a direct substitute for the MAX6191CESA+?

A: A direct substitute must match all electrical parameters including the fixed 2.048V output, ±0.49% tolerance, 25ppm/°C temperature coefficient, and specified noise characteristics. The physical package must be 8-SOIC with identical pin configuration, and the operating temperature range must be -40°C to 85°C.

Q: Can I use a different voltage reference output value as a substitute?

A: No. The output voltage is a critical specification. The MAX6191CESA+ is specifically designed for 2.048V applications. Using a different output voltage will result in circuit malfunction.

Q: Are there packaging alternatives for this part?

A: The MAX6191CESA+ is specified in 8-SOIC packaging. Alternative package options would require a different part number and are not considered direct substitutes.

Q: What is the significance of the ±0.49% tolerance specification?

A: This tolerance defines the maximum deviation of the output voltage from the nominal 2.048V value across the operating temperature range and supply voltage range. Substitutes must maintain this same tolerance specification.

Q: Does the MSL rating affect component substitution?

A: The MSL rating of 1 (Unlimited) indicates no moisture sensitivity. This specification is consistent across equivalent parts and does not restrict substitution eligibility.

Q: What is the temperature coefficient and why is it important for substitution?

A: The temperature coefficient of 25ppm/°C specifies how much the output voltage changes per degree Celsius. This parameter must be identical in substitute parts to maintain circuit accuracy across the -40°C to 85°C operating range.