ISL5961/2IBZ Equivalent & Substitute Parts

Part Overview

The ISL5961/2IBZ is a 14-bit digital-to-analog converter (DAC) manufactured by Renesas Electronics Corporation, designed for data acquisition applications. This component features a single unbuffered current output with differential capability and supports both external and internal reference configurations. The device operates across a supply voltage range of 2.7V to 3.6V for both analog and digital domains.

The ISL5961/2IBZ is classified as obsolete. Identifying equivalent and substitute parts is essential for maintaining design continuity, ensuring component availability for production, and supporting long-term product lifecycle management.

Substiute Parts

ISL5961/2IBZ
Renesas Electronics CorporationIn Stock: 1134ISL5961/2IBZ Datasheet
ISL5961/2IBZ
Current Part
ISL5961/2IAZ
Renesas Electronics CorporationIn Stock: 1176ISL5961/2IAZ Datasheet
ISL5961/2IAZ
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Key Parameters

Parameter Value
Manufacturer Renesas Electronics Corporation
Category Data Acquisition
Number of Bits 14
Number of D/A Converters 1
Output Type Current - Unbuffered
Differential Output Yes
Data Interface Parallel
Reference Type External, Internal
Voltage - Supply, Analog 2.7V ~ 3.6V
Voltage - Supply, Digital 2.7V ~ 3.6V
INL/DNL (LSB) ±2.5, ±1.5
Architecture Current Source
Operating Temperature -40°C ~ 85°C
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours)

Substitute Part Grouping Explanation

Substitution of the ISL5961/2IBZ is determined by strict equivalence across the following critical parameters:

  • Resolution: 14-bit conversion capability
  • Converter Count: Single D/A converter
  • Output Configuration: Current-mode unbuffered output with differential capability
  • Data Interface: Parallel input interface
  • Reference Options: Support for both external and internal reference sources
  • Supply Voltage Ranges: Identical 2.7V to 3.6V for analog and digital supplies
  • Accuracy Specifications: INL/DNL of ±2.5 LSB and ±1.5 LSB respectively
  • Temperature Range: -40°C to 85°C operating window
  • Compliance Standards: ROHS3 compliance and equivalent moisture sensitivity rating

The ISL5961/2IAZ qualifies as a direct substitute based on complete alignment with these parameters. The primary distinction between the main part and its substitute is the package format: the ISL5961/2IBZ uses 28-SOIC packaging, while the ISL5961/2IAZ uses 28-TSSOP packaging.

Parameter Comparison

Parameter ISL5961/2IBZ (Main) ISL5961/2IAZ (Substitute)
Manufacturer Renesas Electronics Corporation Renesas Electronics Corporation
Number of Bits 14 14
Number of D/A Converters 1 1
Output Type Current - Unbuffered Current - Unbuffered
Differential Output Yes Yes
Data Interface Parallel Parallel
Reference Type External, Internal External, Internal
Voltage - Supply, Analog 2.7V ~ 3.6V 2.7V ~ 3.6V
Voltage - Supply, Digital 2.7V ~ 3.6V 2.7V ~ 3.6V
INL/DNL (LSB) ±2.5, ±1.5 ±2.5, ±1.5
Architecture Current Source Current Source
Operating Temperature -40°C ~ 85°C -40°C ~ 85°C
Package / Case 28-SOIC (0.295", 7.50mm Width) 28-TSSOP (0.173", 4.40mm Width)
Mounting Type Surface Mount Surface Mount
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level (MSL) 3 (168 Hours) 3 (168 Hours)

Engineering Selection Recommendations

The ISL5961/2IAZ serves as a functional equivalent to the ISL5961/2IBZ with identical electrical specifications and performance characteristics. Both components share ROHS3 compliance and equivalent moisture sensitivity ratings, ensuring regulatory and environmental consistency.

The selection between these parts is determined by printed circuit board layout requirements and available footprint space. The ISL5961/2IBZ employs a 28-SOIC package with a 7.50mm width, while the ISL5961/2IAZ uses a more compact 28-TSSOP package with a 4.40mm width. The TSSOP variant provides a smaller footprint suitable for space-constrained applications, whereas the SOIC variant may be preferred for designs with established layout patterns or specific assembly process requirements.

Both parts are classified as obsolete products. Component selection should account for current inventory availability and long-term supply chain considerations.

Frequently Asked Questions (FAQ)

Q: Can the ISL5961/2IAZ replace the ISL5961/2IBZ in an existing design?

A: Yes, the ISL5961/2IAZ is electrically equivalent to the ISL5961/2IBZ. All functional parameters, including resolution, output type, supply voltage ranges, accuracy specifications, and operating temperature range are identical. Substitution requires verification that the printed circuit board layout accommodates the 28-TSSOP package footprint.

Q: What is the primary difference between these two parts?

A: The primary difference is the package format. The ISL5961/2IBZ uses 28-SOIC packaging (7.50mm width), while the ISL5961/2IAZ uses 28-TSSOP packaging (4.40mm width). Both are surface-mount packages with identical pin counts and electrical connectivity.

Q: Are there any compliance or regulatory differences between these parts?

A: No. Both the ISL5961/2IBZ and ISL5961/2IAZ are ROHS3 compliant with identical moisture sensitivity levels (MSL 3, 168 hours). They share the same REACH status and ECCN classification.

Q: What should be considered when switching from SOIC to TSSOP packaging?

A: PCB layout modifications are required to accommodate the different package footprint. The TSSOP variant has a narrower width (4.40mm versus 7.50mm), which may affect trace routing and component placement. Assembly process parameters may also require adjustment based on the specific manufacturing equipment and soldering profile used.

Q: Are both parts currently available for new designs?

A: Both the ISL5961/2IBZ and ISL5961/2IAZ are classified as obsolete products. Availability should be confirmed with component suppliers before committing to production designs.

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