AD7948BR Equivalent & Substitute Parts

Part Overview

The AD7948BR is a 12-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring single-channel current output conversion. The device features an R-2R architecture with external reference capability, operating across the industrial temperature range of -40°C to 85°C in a 20-SOIC surface mount package.

The AD7948BR is classified as obsolete. Identifying equivalent and substitute parts is necessary to maintain design continuity, ensure supply chain availability, and support long-term product support for legacy systems utilizing this component.

Substiute Parts

AD7948BR

Analog Devices Inc.In Stock: 1200AD7948BR Datasheet

Current PartRFQ

AD7948BRZ

Analog Devices Inc.In Stock: 3508AD7948BRZ Datasheet

DirectRFQ

AD7945BRZ

Analog Devices Inc.In Stock: 2024AD7945BRZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7948BR are qualified based on strict electrical and mechanical parameter matching. The following criteria determine substitution eligibility:

Critical Parameters for Substitution:

• Resolution: 12 bits
• Converter Count: 1 channel
• Output Configuration: Current - Unbuffered
• Data Interface: Parallel
• Reference Type: External
• Supply Voltages: 5V analog and digital
• Accuracy: ±0.5 LSB (INL/DNL)
• Architecture: R-2R
• Temperature Range: -40°C to 85°C
• Package: 20-SOIC surface mount

All substitute parts listed maintain identical electrical specifications and mechanical compatibility with the AD7948BR, ensuring direct functional equivalence in circuit applications.

Parameter Comparison

Engineering Selection Recommendations

AD7948BRZ is the direct manufacturer equivalent to the AD7948BR. Both parts share the same base product number (AD7948) and are functionally identical. The AD7948BRZ is currently in active production status with ROHS3 compliance and REACH unaffected certification, making it the preferred choice for new designs and ongoing supply requirements.

AD7945BRZ is a parametric equivalent offering identical electrical performance and mechanical compatibility. The AD7945BRZ operates under a different base product number (AD7945) but maintains all critical specifications required for substitution. This part is also in active production with ROHS3 compliance and REACH unaffected certification.

For applications requiring the AD7948BR, either AD7948BRZ or AD7945BRZ can be selected based on availability and supply chain considerations. Both substitute parts eliminate obsolescence risk while maintaining full functional compatibility.

Frequently Asked Questions (FAQ)

Q: Can AD7948BRZ directly replace AD7948BR in existing designs?

A: Yes. The AD7948BRZ is the direct manufacturer equivalent with identical electrical specifications, settling time, output characteristics, and package configuration. No circuit modifications are required.

Q: What is the difference between AD7948BRZ and AD7945BRZ?

A: Both parts are parametric equivalents with identical 12-bit resolution, 600µs settling time, current output, external reference, and 20-SOIC packaging. The primary difference is the base product number designation (AD7948 versus AD7945). Electrical performance and mechanical compatibility are equivalent.

Q: Are the substitute parts available in the same packaging as the AD7948BR?

A: Yes. Both AD7948BRZ and AD7945BRZ are supplied in 20-SOIC surface mount packages with identical dimensions (0.295", 7.50mm width), ensuring direct PCB compatibility.

Q: Do the substitute parts meet current compliance standards?

A: Yes. Both AD7948BRZ and AD7945BRZ are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements.

Q: Why is the AD7948BR classified as obsolete?

A: The AD7948BR has been superseded by the AD7948BRZ, which maintains identical specifications while offering active production status and current compliance certifications.