AD5346BCPZ Equivalent & Substitute Parts

Part Overview

The AD5346BCPZ is an 8-bit digital-to-analog converter manufactured by Analog Devices Inc., designed for data acquisition applications. This device features 8 independent DAC channels with buffered voltage output, operating across a supply voltage range of 2.5V to 5.5V for both analog and digital domains. The part is currently classified as obsolete, making identification of suitable substitute components essential for ongoing system support and new design implementations.

Substiute Parts

AD5346BCPZ

Analog Devices Inc.In Stock: 737AD5346BCPZ Datasheet

Current PartRFQ

AD5346BRUZ

Analog Devices Inc.In Stock: 1509AD5346BRUZ Datasheet

SimilarRFQ

AD5687RBCPZ-RL7

Analog Devices Inc.In Stock: 1832AD5687RBCPZ-RL7 Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitution for the AD5346BCPZ is determined by the following critical parameters: number of DAC channels (8), resolution (8-bit), output type (voltage-buffered), data interface (parallel), reference type (external), supply voltage compatibility (2.5V ~ 5.5V), and operating temperature range (-40°C ~ 105°C). All identified substitutes maintain these core functional specifications.

Two substitute parts are available:

AD5346BRUZ maintains identical electrical specifications and DAC architecture as the main part, with the primary difference being package format (38-TSSOP versus 40-LFCSP) and product status (active versus obsolete). This part is suitable for direct functional replacement where PCB layout accommodates the alternative package.

AD5687RBCPZ-RL7 represents a higher-resolution alternative with 12-bit resolution and 2 DAC channels instead of 8. While this part does not provide direct channel-for-channel equivalence, it offers enhanced resolution performance and active product status. This substitute is applicable only in applications where reduced channel count and increased resolution are acceptable trade-offs.

Parameter Comparison

Engineering Selection Recommendations

AD5346BRUZ is the primary substitute for direct replacement applications. This part maintains identical electrical performance, DAC channel count, and resolution specifications. The transition from obsolete to active product status ensures long-term availability and supply chain continuity. The package change from 40-LFCSP to 38-TSSOP requires PCB layout modification but presents no functional compatibility issues. RoHS3 compliance of this substitute aligns with current environmental regulations.

AD5687RBCPZ-RL7 is applicable only in applications where system architecture permits reduction from 8 to 2 DAC channels and where 12-bit resolution provides functional benefit. The shift from parallel to SPI/DSP interface requires firmware and control logic modification. The expanded digital supply voltage range (1.8V ~ 5.5V) and internal reference option provide additional design flexibility. Active product status and RoHS3 compliance support long-term deployment.

Frequently Asked Questions (FAQ)

Q: Can AD5346BRUZ be used as a direct pin-for-pin replacement for AD5346BCPZ?

A: No. While both parts maintain identical electrical specifications and 8-bit, 8-channel DAC architecture, the package formats differ (38-TSSOP versus 40-LFCSP). Pin assignments and PCB footprints are not compatible. PCB redesign is required for implementation.

Q: What is the primary advantage of selecting AD5346BRUZ over AD5346BCPZ?

A: AD5346BRUZ holds active product status, ensuring continued manufacturing and supply availability. The obsolete status of AD5346BCPZ creates long-term sourcing risk.

Q: Is AD5687RBCPZ-RL7 suitable for applications requiring 8 independent DAC channels?

A: No. AD5687RBCPZ-RL7 provides only 2 DAC channels. This substitute is applicable only in applications where channel count reduction is acceptable and 12-bit resolution provides system benefit.

Q: What interface changes are required when transitioning from AD5346BCPZ to AD5687RBCPZ-RL7?

A: The data interface changes from parallel to SPI or DSP. Firmware modifications and control logic redesign are necessary. The reference input configuration also changes, as AD5687RBCPZ-RL7 supports both external and internal reference types.

Q: Are both substitute parts RoHS compliant?

A: Yes. Both AD5346BRUZ and AD5687RBCPZ-RL7 are ROHS3 compliant, meeting current environmental and regulatory requirements.

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

A: All three parts (AD5346BCPZ, AD5346BRUZ, and AD5687RBCPZ-RL7) have a Moisture Sensitivity Level (MSL) of 3, requiring storage and handling protocols for 168-hour exposure limits.