MAX6195BESA Equivalent & Substitute Parts

Part Overview

The MAX6195BESA is a Series Voltage Reference IC manufactured by Analog Devices Inc./Maxim Integrated, delivering a fixed 5V output with ±0.1% tolerance in an 8-SOIC surface mount package. This part is classified as obsolete, making equivalent and substitute parts necessary for new designs and ongoing production requirements. The MAX6195BESA operates across the -40°C to 85°C temperature range with 500 µA output current capability and is suitable for precision voltage reference applications requiring low noise performance.

Key Parameters

Parameter	Value
Output Voltage (Fixed)	5V
Output Current	500 µA
Tolerance	±0.1%
Temperature Coefficient	10 ppm/°C
Noise (0.1Hz to 10Hz)	120 µVp-p
Noise (10Hz to 10kHz)	240 µVrms
Input Voltage Range	5.2V ~ 12.6V
Supply Current	35 µA
Operating Temperature	-40°C ~ 85°C
Package	8-SOIC (0.154", 3.90mm Width)
RoHS Status	RoHS non-compliant

Substitute Part Grouping Explanation

Substitution of the MAX6195BESA is determined by the following critical parameters: fixed 5V output voltage, 8-SOIC package compatibility, surface mount mounting type, and electrical performance within acceptable ranges. The substitute parts are grouped into two categories based on their electrical characteristics and product status:

Direct Equivalent (Same Electrical Performance): MAX6195BESA+ maintains identical electrical specifications to the original part but is in active product status with RoHS3 compliance and improved packaging options (Tube).

Enhanced Performance Substitutes (Superior Specifications): The ADR4550 series (ADR4550ARZ, ADR4550ARZ-R7, ADR4550BRZ, ADR4550BRZ-R7) and LTC1798CS8-5 series (LTC1798CS8-5#PBF, LTC1798CS8-5#TRPBF) offer improved tolerance, lower temperature coefficient, reduced noise, and extended temperature ranges while maintaining the same 5V output and 8-SOIC package footprint.

Functional Alternatives (Different Output Voltage): The LTC1798CS8-4.1 series (LTC1798CS8-4.1#PBF, LTC1798CS8-4.1#TRPBF) provides 4.096V output and is suitable only for applications where this specific voltage is acceptable.

Parameter Comparison

Part Number	Manufacturer	Output Voltage	Output Current	Tolerance	Temp Coefficient	Noise (0.1-10Hz)	Input Voltage	Operating Temp	Package	Product Status	RoHS Status
MAX6195BESA	Analog Devices/Maxim	5V	500 µA	±0.1%	10 ppm/°C	120 µVp-p	5.2V ~ 12.6V	-40°C ~ 85°C	8-SOIC	Obsolete	Non-compliant
MAX6195BESA+	Analog Devices/Maxim	5V	500 µA	±0.1%	10 ppm/°C	120 µVp-p	5.2V ~ 12.6V	-40°C ~ 85°C	8-SOIC	Active	RoHS3 Compliant
ADR4550ARZ	Analog Devices	5V	10 mA	±0.04%	4 ppm/°C	2.8 µVp-p	5.1V ~ 15V	-40°C ~ 125°C	8-SOIC	Active	RoHS3 Compliant
ADR4550ARZ-R7	Analog Devices	5V	10 mA	±0.04%	4 ppm/°C	2.8 µVp-p	5.1V ~ 15V	-40°C ~ 125°C	8-SOIC	Active	RoHS3 Compliant
ADR4550BRZ	Analog Devices	5V	10 mA	±0.02%	2 ppm/°C	2.8 µVp-p	5.1V ~ 15V	-40°C ~ 125°C	8-SOIC	Active	RoHS3 Compliant
ADR4550BRZ-R7	Analog Devices	5V	10 mA	±0.02%	2 ppm/°C	2.8 µVp-p	5.1V ~ 15V	-40°C ~ 125°C	8-SOIC	Active	RoHS3 Compliant
LTC1798CS8-5#PBF	Analog Devices	5V	10 mA	±0.15%	40 ppm/°C	8 µVp-p	5.2V ~ 12.6V	0°C ~ 70°C	8-SOIC	Active	RoHS3 Compliant
LTC1798CS8-5#TRPBF	Analog Devices	5V	10 mA	±0.15%	40 ppm/°C	8 µVp-p	5.2V ~ 12.6V	0°C ~ 70°C	8-SOIC	Active	RoHS3 Compliant
LTC1798CS8-4.1#PBF	Analog Devices	4.096V	10 mA	±0.15%	40 ppm/°C	8 µVp-p	4.296V ~ 12.6V	0°C ~ 70°C	8-SOIC	Active	RoHS3 Compliant
LTC1798CS8-4.1#TRPBF	Analog Devices	4.096V	10 mA	±0.15%	40 ppm/°C	8 µVp-p	4.296V ~ 12.6V	0°C ~ 70°C	8-SOIC	Active	RoHS3 Compliant

Engineering Selection Recommendations

For Direct Replacement (Identical Specifications): Select MAX6195BESA+ when exact electrical performance matching is required. This part maintains all specifications of the original MAX6195BESA while offering active product status and RoHS3 compliance, eliminating obsolescence risk.

For Enhanced Precision Applications: The ADR4550 series (ADR4550BRZ or ADR4550BRZ-R7) provides superior tolerance (±0.02%), lower temperature coefficient (2 ppm/°C), and extended operating temperature range (-40°C to 125°C). These parts are suitable for applications demanding higher accuracy and wider temperature operation. The ADR4550ARZ variants offer intermediate performance (±0.04% tolerance, 4 ppm/°C) at lower cost.

For Packaging Flexibility: ADR4550ARZ-R7 and ADR4550BRZ-R7 are available in Cut Tape & Digi-Reel packaging, while ADR4550ARZ and ADR4550BRZ are supplied in Tube packaging. LTC1798CS8-5#PBF and LTC1798CS8-5#TRPBF offer Tube and Tape & Reel options respectively.

For Temperature-Constrained Applications: LTC1798CS8-5 series parts operate only to 70°C maximum, making them unsuitable for applications requiring the full -40°C to 85°C range of the original part.

For Different Output Voltage Requirements: LTC1798CS8-4.1 series parts deliver 4.096V output and are functional alternatives only when this specific voltage is acceptable in the application circuit.

All substitute parts maintain 8-SOIC package compatibility and surface mount mounting type, ensuring PCB layout compatibility with the original MAX6195BESA design.

Frequently Asked Questions (FAQ)

Q: Can MAX6195BESA+ be used as a direct drop-in replacement for MAX6195BESA?

A: Yes. MAX6195BESA+ maintains identical electrical specifications including 5V output, ±0.1% tolerance, 10 ppm/°C temperature coefficient, and -40°C to 85°C operating range. The primary differences are active product status and RoHS3 compliance. Both use the same 8-SOIC package footprint.

Q: What are the key differences between MAX6195BESA and ADR4550BRZ?

A: Both deliver 5V output in 8-SOIC packages. ADR4550BRZ offers superior tolerance (±0.02% vs ±0.1%), lower temperature coefficient (2 ppm/°C vs 10 ppm/°C), higher output current (10 mA vs 500 µA), extended input voltage range (5.1V ~ 15V vs 5.2V ~ 12.6V), and wider operating temperature (-40°C ~ 125°C vs -40°C ~ 85°C). ADR4550BRZ is suitable for precision applications requiring tighter specifications.

Q: Are LTC1798CS8-5 parts suitable replacements for MAX6195BESA?

A: LTC1798CS8-5 parts maintain 5V output and 8-SOIC package compatibility but have limitations. Operating temperature is restricted to 0°C ~ 70°C (vs -40°C ~ 85°C), tolerance is ±0.15% (vs ±0.1%), and temperature coefficient is 40 ppm/°C (vs 10 ppm/°C). These parts are suitable only for applications within the 0°C to 70°C range.

Q: What is the difference between ADR4550ARZ and ADR4550BRZ?

A: Both are 5V reference ICs in 8-SOIC packages with identical output current (10 mA) and operating temperature range (-40°C ~ 125°C). ADR4550BRZ offers tighter tolerance (±0.02% vs ±0.04%) and lower temperature coefficient (2 ppm/°C vs 4 ppm/°C), making it suitable for higher precision applications.

Q: What do the packaging suffixes (#PBF, #TRPBF, -R7) indicate?

A: #PBF indicates Tube packaging. #TRPBF indicates Tape & Reel packaging. -R7 suffix denotes Cut Tape & Digi-Reel packaging. These designations affect ordering and handling but do not change electrical specifications.

Q: Can LTC1798CS8-4.1 parts replace MAX6195BESA?

A: No. LTC1798CS8-4.1 parts deliver 4.096V output instead of 5V. They are functional alternatives only in applications where 4.096V reference voltage is acceptable. All other electrical and package characteristics differ from MAX6195BESA requirements.

Q: Which substitute part offers the best combination of performance and availability?

A: ADR4550BRZ-R7 combines superior electrical performance (±0.02% tolerance, 2 ppm/°C temperature coefficient), extended operating temperature range (-40°C ~ 125°C), active product status, RoHS3 compliance, and high inventory availability (28,905 units). It is suitable for precision applications across wide temperature ranges.

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