MAX5123BEEE Equivalent & Substitute Parts

Part Overview

The MAX5123BEEE is a 12-bit Digital to Analog Converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring single-channel voltage output conversion. This component features an R-2R architecture with SPI interface, supporting both external and internal reference configurations across a 2.7V to 3.6V supply range.

The MAX5123BEEE is classified as obsolete. Locating equivalent or substitute parts is necessary to ensure design continuity, maintain supply chain reliability, and support ongoing production or maintenance requirements for systems utilizing this component.

Key Parameters

Parameter	Specification
Number of Bits	12
Number of D/A Converters	1
Output Type	Voltage - Buffered
Data Interface	SPI
Reference Type	External, Internal
Voltage - Supply, Analog	2.7V ~ 3.6V
Voltage - Supply, Digital	2.7V ~ 3.6V
Settling Time	20µs (Typ)
INL/DNL (LSB)	±2 (Max), ±1 (Max)
Architecture	R-2R
Operating Temperature	-40°C ~ 85°C
Package / Case	16-SSOP (0.154", 3.90mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the MAX5123BEEE are identified based on strict electrical and mechanical parameter matching within the data acquisition DAC category. The substitution logic is based on the following critical parameters:

12-bit resolution with single D/A converter channel
Voltage-buffered output configuration
SPI serial data interface
External and internal reference support
2.7V to 3.6V dual supply voltage range
20µs typical settling time
±2 LSB INL and ±1 LSB DNL specifications
R-2R converter architecture
16-SSOP surface mount package (0.154" width, 3.90mm)
-40°C to 85°C operating temperature range

Parts meeting all these parameters are classified as direct substitutes. Parts with identical electrical specifications but different base product numbers are classified as parametric equivalents.

Parameter Comparison

Parameter	MAX5123BEEE	MAX5123BEEE+	MAX5121BEEE+
Number of Bits	12	12	12
Number of D/A Converters	1	1	1
Output Type	Voltage - Buffered	Voltage - Buffered	Voltage - Buffered
Data Interface	SPI	SPI	SPI
Reference Type	External, Internal	External, Internal	External, Internal
Voltage - Supply, Analog	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Voltage - Supply, Digital	2.7V ~ 3.6V	2.7V ~ 3.6V	2.7V ~ 3.6V
Settling Time	20µs (Typ)	20µs (Typ)	20µs (Typ)
INL/DNL (LSB)	±2 (Max), ±1 (Max)	±2 (Max), ±1 (Max)	±2 (Max), ±1 (Max)
Architecture	R-2R	R-2R	R-2R
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SSOP (0.154", 3.90mm Width)	16-SSOP (0.154", 3.90mm Width)	16-SSOP (0.154", 3.90mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant

Engineering Selection Recommendations

The MAX5123BEEE+ serves as the direct substitute for the MAX5123BEEE, offering identical electrical and mechanical specifications with the advantage of active product status and ROHS3 compliance. This part is recommended as the primary replacement option.

The MAX5121BEEE+ is a parametric equivalent that matches all critical electrical specifications and package requirements. As an active product with ROHS3 compliance, it provides an alternative substitution path when MAX5123BEEE+ availability is constrained.

Both substitute parts are manufactured by Analog Devices Inc./Maxim Integrated and are supplied in tube packaging with unlimited moisture sensitivity level (MSL 1). Selection between MAX5123BEEE+ and MAX5121BEEE+ should be based on component availability and supply chain considerations, as both meet the full electrical and mechanical requirements of the original MAX5123BEEE specification.

Frequently Asked Questions (FAQ)

Q: Can MAX5123BEEE+ be used as a direct replacement for MAX5123BEEE?

A: Yes. The MAX5123BEEE+ is a direct substitute with identical electrical specifications, package configuration, and pin compatibility. The primary difference is product status (active vs. obsolete) and RoHS compliance (ROHS3 vs. non-compliant).

Q: What is the difference between MAX5123BEEE+ and MAX5121BEEE+?

A: Both parts are 12-bit DACs with identical electrical performance specifications, supply voltage ranges, settling time, and package dimensions. The difference lies in the base product number designation (MAX5123 vs. MAX5121). Both are parametric equivalents meeting all critical substitution criteria.

Q: Are there any package or pinout differences between these parts?

A: No. All three parts use the 16-SSOP surface mount package with 0.154" width and 3.90mm dimensions. Pinout and mechanical compatibility are identical.

Q: Why is the original MAX5123BEEE classified as obsolete?

A: The MAX5123BEEE has reached end-of-life status. Active alternatives (MAX5123BEEE+ and MAX5121BEEE+) are available with identical specifications and improved compliance certifications.

Q: What is the significance of RoHS3 compliance on the substitute parts?

A: ROHS3 compliance indicates adherence to Restriction of Hazardous Substances regulations. The substitute parts meet current environmental and regulatory standards, whereas the original MAX5123BEEE does not. This is relevant for applications subject to RoHS requirements.

Q: Can these parts be used interchangeably in existing designs?

A: Yes, within the electrical and mechanical specifications provided. All three parts share identical 12-bit resolution, SPI interface, voltage supply ranges, settling time, and 16-SSOP package configuration. Design validation should confirm application-specific requirements are met.

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