MAX547AEMH Equivalent & Substitute Parts

Part Overview

The MAX547AEMH is a 13-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc./Maxim Integrated, designed for data acquisition applications requiring parallel interface connectivity and external voltage reference configuration. The device features 8 independent D/A converters in a 44-MQFP surface mount package with ±5V analog supply operation.

The MAX547AEMH is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product maintenance and production requirements.

Key Parameters

Parameter	Value
Number of Bits	13
Number of D/A Converters	8
Settling Time	5µs (Typ)
Output Type	Voltage - Buffered
Data Interface	Parallel
Reference Type	External
Voltage - Supply, Analog	±5V
INL/DNL (LSB)	±0.5, ±1 (Max)
Architecture	R-2R
Operating Temperature	-40°C ~ 85°C
Package / Case	44-QFP
Supplier Device Package	44-MQFP (10x10)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitute parts for the MAX547AEMH are identified based on strict electrical and mechanical parameter equivalence within the MAX547 product family. The substitution logic is based on the following critical parameters:

13-bit resolution with 8 independent D/A converters
Parallel data interface with external reference configuration
±5V analog supply voltage requirement
5µs typical settling time
R-2R architecture
44-MQFP (10x10) surface mount package
Operating temperature range of -40°C to 85°C
INL/DNL specifications of ±0.5 and ±1 LSB (Max)

Parts meeting all these electrical and mechanical criteria are classified as direct substitutes. Packaging variations (Tray, Tube) do not affect functional equivalence and represent alternative distribution formats for the same electrical component.

Parameter Comparison

Parameter	MAX547AEMH	MAX547AEMH+	MAX547BEMH+
Number of Bits	13	13	13
Number of D/A Converters	8	8	8
Settling Time	5µs (Typ)	5µs (Typ)	5µs (Typ)
Output Type	Voltage - Buffered	Voltage - Buffered	Voltage - Buffered
Data Interface	Parallel	Parallel	Parallel
Reference Type	External	External	External
Voltage - Supply, Analog	±5V	±5V	±5V
INL/DNL (LSB)	±0.5, ±1 (Max)	±0.5, ±1 (Max)	±0.5, ±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	44-QFP	44-QFP	44-QFP
Supplier Device Package	44-MQFP (10x10)	44-MQFP (10x10)	44-MQFP (10x10)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Obsolete	Active	Active
RoHS Status	RoHS non-compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level (MSL)	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)

Engineering Selection Recommendations

The MAX547AEMH is obsolete and no longer in active production. For new designs and ongoing production requirements, MAX547AEMH+ and MAX547BEMH+ are functionally equivalent alternatives within the MAX547 product family.

Both substitute parts maintain identical electrical specifications and package configurations. The primary distinction is product status and regulatory compliance:

MAX547AEMH+ is an active product with ROHS3 compliance, available in Tray packaging format.

MAX547BEMH+ is an active product with ROHS3 compliance, available in Tube packaging format.

Selection between these substitutes should be based on packaging requirements and supply chain availability. Both parts satisfy the electrical and mechanical requirements of the original MAX547AEMH specification.

Frequently Asked Questions (FAQ)

Q: Can MAX547AEMH+ and MAX547BEMH+ be used interchangeably with MAX547AEMH?

A: Yes. All three parts share identical electrical specifications, including 13-bit resolution, 8 D/A converters, 5µs settling time, ±5V supply voltage, and 44-MQFP package configuration. The primary differences are product status (obsolete vs. active) and packaging format (Tray vs. Tube).

Q: What is the difference between MAX547AEMH+ and MAX547BEMH+?

A: Both parts are electrically identical and meet the same performance specifications. The difference is packaging format: MAX547AEMH+ is supplied in Tray packaging, while MAX547BEMH+ is supplied in Tube packaging. Selection depends on assembly process requirements and supply chain preferences.

Q: Are there RoHS compliance differences between these parts?

A: Yes. The original MAX547AEMH is RoHS non-compliant. Both substitute parts, MAX547AEMH+ and MAX547BEMH+, are ROHS3 compliant. For applications requiring RoHS compliance, either substitute part is appropriate.

Q: Does the 44-MQFP package remain the same across all three parts?

A: Yes. All three parts use the 44-MQFP (10x10) surface mount package with identical pin configuration and mechanical dimensions. No PCB layout modifications are required when substituting these parts.

Q: What is the moisture sensitivity level for these parts?

A: All three parts have a Moisture Sensitivity Level (MSL) of 3, with a floor life of 168 hours. Standard moisture control procedures during storage and assembly apply to all variants.

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