AD1674BR Equivalent & Substitute Parts

Part Overview

The AD1674BR is a 12-bit Analog-to-Digital Converter (ADC) manufactured by Analog Devices Inc., designed for single-ended input data acquisition applications. It features a Successive Approximation Register (SAR) architecture with a 100 kSPS sampling rate and operates with external or internal voltage references. The device is packaged in a 28-SOIC surface-mount package.

The AD1674BR is classified as obsolete. Identifying equivalent and substitute parts is necessary to support legacy system maintenance, design updates, and procurement continuity when original stock becomes unavailable.

Key Parameters

Parameter	Value
Resolution	12 Bits
Sampling Rate	100 kSPS
Number of Inputs	1
Input Type	Single Ended
Architecture	SAR
Data Interface	Parallel
Reference Type	External, Internal
Analog Supply Voltage	±11.4V ~ 16.5V
Digital Supply Voltage	5V
Operating Temperature Range	-40°C ~ 85°C
Package	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount
Moisture Sensitivity Level	3 (168 Hours)

Substitute Part Grouping Explanation

Substitute parts for the AD1674BR are identified based on strict electrical and mechanical parameter matching. The following criteria determine substitutability:

Critical Parameters for Substitution:

Resolution: 12 bits
Sampling Rate: 100 kSPS
Number of Inputs: 1
Input Type: Single Ended
Architecture: SAR
Data Interface: Parallel
Reference Type: External, Internal
Analog Supply Voltage: ±11.4V ~ 16.5V
Digital Supply Voltage: 5V
Operating Temperature Range: -40°C ~ 85°C
Package: 28-SOIC (0.295", 7.50mm Width)
Mounting Type: Surface Mount

All substitute parts listed below match these parameters identically and are manufactured by Analog Devices Inc. within the AD1674 base product family.

Parameter Comparison

Parameter	AD1674BR	AD1674BRZ	AD1674ARZ
Manufacturer	Analog Devices Inc.	Analog Devices Inc.	Analog Devices Inc.
Resolution	12 Bits	12 Bits	12 Bits
Sampling Rate	100 kSPS	100 kSPS	100 kSPS
Number of Inputs	1	1	1
Input Type	Single Ended	Single Ended	Single Ended
Architecture	SAR	SAR	SAR
Data Interface	Parallel	Parallel	Parallel
Reference Type	External, Internal	External, Internal	External, Internal
Analog Supply Voltage	±11.4V ~ 16.5V	±11.4V ~ 16.5V	±11.4V ~ 16.5V
Digital Supply Voltage	5V	5V	5V
Operating Temperature Range	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)	28-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Moisture Sensitivity Level	3 (168 Hours)	3 (168 Hours)	3 (168 Hours)
Product Status	Obsolete	Active	Active
RoHS Status	Not specified	ROHS3 Compliant	ROHS3 Compliant
REACH Status	Not specified	REACH Unaffected	REACH Unaffected
Packaging Type	Not specified	Tube	Tube

Engineering Selection Recommendations

AD1674BRZ and AD1674ARZ are direct functional equivalents to the AD1674BR. Both substitute parts are classified as Active products, ensuring ongoing manufacturer support and availability. Both parts carry ROHS3 compliance and REACH Unaffected status, meeting current environmental and regulatory requirements.

The AD1674BRZ and AD1674ARZ are supplied in tube packaging, which differs from the original part's unspecified packaging. Both substitute parts are suitable for new designs and legacy system replacements where the AD1674BR is no longer procurable.

Selection between AD1674BRZ and AD1674ARZ should be based on procurement availability, lead time, and inventory levels, as both parts are electrically and mechanically identical.

Frequently Asked Questions (FAQ)

Q: Can AD1674BRZ or AD1674ARZ be used as direct replacements for AD1674BR?

A: Yes. Both parts are functionally equivalent. All critical electrical parameters, including resolution, sampling rate, supply voltages, operating temperature range, and package specifications are identical. The parts are pin-compatible and require no circuit modifications.

Q: What is the difference between AD1674BRZ and AD1674ARZ?

A: Both parts are electrically and mechanically identical. The difference lies in product status and availability. AD1674BRZ and AD1674ARZ are both Active products with current manufacturer support. Selection should be based on inventory availability and procurement lead times.

Q: Why is the AD1674BR classified as obsolete?

A: The AD1674BR has reached end-of-life status. Analog Devices Inc. continues to manufacture equivalent parts under the AD1674 base product family, specifically the AD1674BRZ and AD1674ARZ, which are actively supported.

Q: Are there any packaging differences between these parts?

A: The AD1674BRZ and AD1674ARZ are supplied in tube packaging. The original AD1674BR packaging type is not specified in the technical documentation. All three parts use the same 28-SOIC physical package (0.295", 7.50mm Width) and are surface-mount compatible.

Q: Do the substitute parts meet current compliance standards?

A: Yes. Both AD1674BRZ and AD1674ARZ are ROHS3 compliant and REACH Unaffected, meeting current environmental and regulatory requirements for electronic components.

Q: What is the Moisture Sensitivity Level (MSL) for these parts?

A: All three parts carry MSL 3 (168 Hours), indicating identical moisture handling and storage requirements.

Request Quote (Ships tomorrow)

Part Number

Quantity

Company

Contact Name

E-mail

Message