ISL5861IBZ Equivalent & Substitute Parts

Part Overview

The ISL5861IBZ is a 12-bit Digital to Analog Converter (DAC) manufactured by Renesas Electronics Corporation, designed for data acquisition applications. This component features a single D/A converter with current output (unbuffered) and differential output capability, operating across a supply voltage range of 2.7V to 3.6V for both analog and digital domains. The ISL5861IBZ is classified as an obsolete product, making identification of functionally equivalent alternatives essential for ongoing system support, legacy design maintenance, and component procurement planning.

Substiute Parts

ISL5861IBZ

Renesas Electronics CorporationIn Stock: 3127ISL5861IBZ Datasheet

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ISL5861IAZ

Renesas Electronics CorporationIn Stock: 1355ISL5861IAZ Datasheet

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Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ISL5861IBZ are identified based on strict electrical and mechanical compatibility criteria. The primary substitution logic is based on the following key parameters:

• Resolution: 12-bit conversion capability
• Converter Count: Single D/A converter
• Output Configuration: Current output (unbuffered) with differential output capability
• Data Interface: Parallel interface
• Reference Options: External and internal reference support
• Supply Voltage Range: 2.7V to 3.6V for both analog and digital supplies
• Accuracy Specifications: INL/DNL of ±0.5 LSB
• Architecture: Current source topology
• Operating Temperature Range: -40°C to 85°C
• Compliance: ROHS3 compliant, REACH unaffected

The ISL5861IAZ qualifies as a direct functional equivalent, maintaining identical electrical specifications while differing only in package form factor (28-TSSOP versus 28-SOIC).

Parameter Comparison

Engineering Selection Recommendations

Both the ISL5861IBZ and ISL5861IAZ are classified as obsolete products from Renesas Electronics Corporation. Selection between these parts is determined by printed circuit board (PCB) layout constraints and available board space.

The ISL5861IBZ utilizes a 28-SOIC package with a 7.50mm width, suitable for applications with standard PCB pitch requirements. The ISL5861IAZ employs a 28-TSSOP package with a 4.40mm width, providing a more compact footprint for space-constrained designs.

Both components maintain identical electrical performance specifications, including 12-bit resolution, current source output architecture, differential output capability, and parallel data interface. Both are ROHS3 compliant and carry identical moisture sensitivity ratings (MSL 3, 168 hours).

Component selection should be based on PCB layout requirements and available inventory. Both parts satisfy equivalent functional and compliance requirements for data acquisition applications operating within the specified voltage and temperature ranges.

Frequently Asked Questions (FAQ)

Q: Can ISL5861IAZ replace ISL5861IBZ in existing designs?

A: Yes. The ISL5861IAZ provides electrical equivalence to the ISL5861IBZ. The primary difference is package form factor: ISL5861IBZ uses 28-SOIC (7.50mm width) while ISL5861IAZ uses 28-TSSOP (4.40mm width). PCB layout modifications are required to accommodate the different package dimensions and pin pitch.

Q: Are there any electrical performance differences between these parts?

A: No. Both parts maintain identical specifications for resolution (12-bit), converter count (1), output type (current - unbuffered), differential output capability, supply voltage ranges (2.7V to 3.6V), accuracy (±0.5 LSB INL/DNL), and operating temperature range (-40°C to 85°C).

Q: What is the significance of the package designation (SOIC vs. TSSOP)?

A: SOIC (Small Outline Integrated Circuit) and TSSOP (Thin Shrink Small Outline Package) are different surface mount package styles. TSSOP provides a narrower footprint (4.40mm versus 7.50mm width), making it suitable for compact designs. Pin count and electrical function remain identical.

Q: Are both parts still available for procurement?

A: Both ISL5861IBZ and ISL5861IAZ are classified as obsolete products. Availability is limited to existing inventory from authorized distributors. Procurement planning should account for limited stock and potential future unavailability.

Q: Do both parts meet current compliance standards?

A: Both parts are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements for electronic components.