AD7948BRSZ Equivalent & Substitute Parts

Part Overview

The AD7948BRSZ is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring parallel interface control with external voltage reference. This active product operates across the industrial temperature range of -40°C to 85°C and delivers current output in an unbuffered configuration. The component is housed in a 20-SSOP surface mount package and maintains ROHS3 compliance with unlimited moisture sensitivity rating.

Identifying equivalent and substitute parts becomes necessary when managing inventory constraints, addressing supply chain disruptions, or optimizing procurement across multiple design revisions that share identical electrical and mechanical specifications.

Substiute Parts

AD7948BRSZ

Analog Devices Inc.In Stock: 1968AD7948BRSZ Datasheet

Current PartRFQ

AD7945BRSZ

Analog Devices Inc.In Stock: 16500AD7945BRSZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the AD7948BRSZ is determined by strict equivalence across the following critical parameters:

• Resolution: 12-bit conversion
• Converter Count: Single D/A converter per package
• Output Configuration: Current output, unbuffered topology
• Interface Protocol: Parallel data input
• Reference Architecture: External voltage reference requirement
• Supply Voltages: 5V analog and 5V digital supplies
• Linearity Specifications: ±0.5 LSB maximum INL and DNL
• Conversion Architecture: R-2R resistor ladder topology
• Temperature Qualification: -40°C to 85°C operating range
• Physical Form Factor: 20-SSOP package with 5.30mm width
• Surface Mount Compatibility: Standard PCB assembly processes
• Regulatory Compliance: ROHS3 and REACH requirements

The AD7945BRSZ meets all specified electrical and mechanical parameters, establishing it as a parametric equivalent suitable for direct substitution in applications where the AD7948BRSZ is specified.

Parameter Comparison

Engineering Selection Recommendations

Both the AD7948BRSZ and AD7945BRSZ are active products from Analog Devices Inc. with identical electrical specifications and mechanical packaging. Selection between these components should be based on inventory availability and procurement lead times, as they are parametric equivalents with no functional differentiation.

Both components maintain ROHS3 compliance and REACH unaffected status, satisfying regulatory requirements for industrial and commercial applications. The unlimited moisture sensitivity rating (MSL 1) permits standard storage and handling procedures without specialized environmental controls.

Frequently Asked Questions (FAQ)

Q: Can the AD7945BRSZ replace the AD7948BRSZ in existing designs?

A: Yes. The AD7945BRSZ is a parametric equivalent with identical resolution, settling time, output type, supply voltages, linearity specifications, architecture, temperature range, and package form factor. Direct substitution is supported without circuit modification.

Q: Are there any package compatibility differences between these parts?

A: No. Both components use the 20-SSOP package with 5.30mm width, ensuring identical PCB footprint and assembly compatibility.

Q: Do both parts require the same external reference voltage configuration?

A: Yes. Both the AD7948BRSZ and AD7945BRSZ require external voltage reference and operate with identical 5V analog and digital supply voltages.

Q: What determines whether a part qualifies as a substitute?

A: Substitution eligibility requires matching specifications across resolution, converter count, output configuration, interface protocol, reference type, supply voltages, linearity performance, conversion architecture, temperature range, package type, and regulatory compliance status.

Q: Are there any differences in RoHS or REACH compliance between these parts?

A: No. Both components are ROHS3 compliant and REACH unaffected, meeting identical regulatory requirements.