AD7708BR Equivalent & Substitute Parts

Part Overview

The AD7708BR is a 16-bit Analog to Digital Converter featuring sigma-delta architecture with integrated programmable gain amplifier (PGA), manufactured by Analog Devices Inc. This device supports 4 or 8 differential, pseudo-differential, or single-ended inputs with SPI and DSP data interfaces. The AD7708BR is classified as obsolete, making identification of functionally equivalent active alternatives essential for new designs and production continuity.

Substiute Parts

AD7708BR

Analog Devices Inc.In Stock: 2220AD7708BR Datasheet

Current PartRFQ

AD7708BRZ

Analog Devices Inc.In Stock: 2403AD7708BRZ Datasheet

DirectRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the AD7708BR is determined by strict equivalence across all critical electrical and mechanical parameters. The substitute part must maintain identical specifications for resolution, sampling rate, input configuration, data interface protocol, supply voltage ranges, operating temperature range, and package form factor. The AD7708BRZ qualifies as a direct substitute based on complete parameter alignment across all specified categories. The primary distinction between these parts is product status and packaging format, with AD7708BRZ classified as active and supplied in tube packaging, whereas AD7708BR is obsolete.

Parameter Comparison

Engineering Selection Recommendations

The AD7708BRZ is the direct functional equivalent for the obsolete AD7708BR. Selection of AD7708BRZ is supported by active product status, ensuring ongoing manufacturer support and availability. AD7708BRZ carries ROHS3 compliance and REACH unaffected status, meeting current environmental and regulatory requirements. Both parts share identical electrical specifications and 28-SOIC package geometry, enabling direct substitution in existing designs without circuit modification. The transition from AD7708BR to AD7708BRZ is appropriate for new production, design updates, and inventory replenishment.

Frequently Asked Questions (FAQ)

Q: Can AD7708BRZ replace AD7708BR in existing designs? A: Yes. AD7708BRZ is electrically and mechanically identical to AD7708BR. Both devices feature 16-bit resolution, 1.37k sampling rate, 4 or 8 configurable inputs, SPI/DSP interfaces, and identical supply voltage ranges. The 28-SOIC package geometry is identical, allowing direct PCB substitution.

Q: What is the primary reason to transition from AD7708BR to AD7708BRZ? A: AD7708BR is classified as obsolete, while AD7708BRZ is active. Active status ensures continued manufacturer support, availability, and compliance with current environmental standards. AD7708BRZ carries ROHS3 compliance certification.

Q: Are there packaging differences between AD7708BR and AD7708BRZ? A: Both parts use 28-SOIC surface mount packaging with identical dimensions (0.295", 7.50mm width). The primary packaging difference is distribution format: AD7708BR uses standard packaging, while AD7708BRZ is supplied in tube packaging.

Q: Do supply voltage requirements differ between these parts? A: No. Both AD7708BR and AD7708BRZ support identical analog and digital supply voltage ranges of 2.7V ~ 3.3V or 5V, with operating temperature range of -40°C ~ 85°C.

Q: Is AD7708BRZ suitable for new product designs? A: Yes. AD7708BRZ is the recommended choice for new designs due to active product status and current regulatory compliance certifications.