AD7538JRZ Equivalent & Substitute Parts

Part Overview

The AD7538JRZ is a 14-bit digital-to-analog converter (DAC) manufactured by Analog Devices Inc., designed for data acquisition applications requiring parallel interface control and external voltage reference configuration. This surface-mount component operates in the 0°C to 70°C temperature range and delivers current-unbuffered output with 1.5µs settling time. The part is active in production status and ROHS3 compliant, making it suitable for modern industrial and commercial applications. Substitute parts are identified when equivalent electrical specifications and mechanical compatibility allow direct replacement in circuit designs.

Substiute Parts

AD7538JRZ

Analog Devices Inc.In Stock: 1456AD7538JRZ Datasheet

Current PartRFQ

MX7538JEWG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1109MX7538JEWG+ Datasheet

UpgradeRFQ

MX7538KEWG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1372MX7538KEWG+ Datasheet

SimilarRFQ

MX7538JCWG+

Analog Devices Inc./Maxim IntegratedIn Stock: 1033MX7538JCWG+ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7538JRZ are classified based on electrical parameter compatibility and mechanical interchangeability. All identified substitutes maintain the core specifications: 14-bit resolution, 1 D/A converter, 1.5µs settling time, current-unbuffered output, parallel data interface, external reference type, identical supply voltage ranges, R-2R architecture, and 24-SOIC surface-mount packaging.

Substitutes are differentiated by operating temperature range and INL/DNL specifications:

• Upgrade substitutes extend the operating temperature range to -40°C ~ 85°C while maintaining all other electrical parameters
• Similar substitutes maintain the original 0°C ~ 70°C temperature range with improved INL/DNL performance (±1 LSB maximum vs. ±2 LSB maximum)
• Parametric equivalents match the original part's temperature range and INL/DNL specifications exactly

All substitutes are manufactured by Analog Devices Inc./Maxim Integrated, maintain ROHS3 compliance, and are active in production status.

Parameter Comparison

Engineering Selection Recommendations

Selection of substitute parts depends on application requirements and environmental constraints:

MX7538JEWG+ is suitable for applications requiring extended operating temperature range (-40°C to 85°C) while maintaining identical electrical performance to the original AD7538JRZ. This upgrade substitute is appropriate for industrial environments or systems with demanding thermal specifications.

MX7538KEWG+ is appropriate for applications where improved linearity performance is required. The ±1 LSB maximum INL specification provides tighter integral nonlinearity compared to the original part's ±2 LSB specification, while extending the operating temperature range to -40°C ~ 85°C.

MX7538JCWG+ is a direct parametric equivalent maintaining the original operating temperature range (0°C ~ 70°C) and INL/DNL specifications. This substitute is suitable for applications where thermal performance requirements match the original design specification.

All substitute parts maintain active production status, ROHS3 compliance, and identical mechanical packaging, ensuring direct circuit board compatibility without design modification.

Frequently Asked Questions (FAQ)

Q: Can MX7538JEWG+ replace AD7538JRZ in all applications? A: MX7538JEWG+ is electrically and mechanically compatible with AD7538JRZ. The extended operating temperature range (-40°C ~ 85°C) provides additional capability for wider environmental conditions. Direct substitution is possible without circuit modification.

Q: What is the difference between MX7538KEWG+ and the original AD7538JRZ? A: MX7538KEWG+ maintains identical electrical performance except for improved INL specification (±1 LSB maximum vs. ±2 LSB maximum) and extended operating temperature range (-40°C ~ 85°C vs. 0°C ~ 70°C). Both parts use identical 24-SOIC packaging and parallel interface architecture.

Q: Is MX7538JCWG+ a direct replacement for AD7538JRZ? A: Yes. MX7538JCWG+ is a parametric equivalent with identical operating temperature range, INL/DNL specifications, and all electrical parameters. It uses the same 24-SOIC package and requires no circuit design changes.

Q: Are all substitute parts ROHS3 compliant? A: All identified substitute parts (MX7538JEWG+, MX7538KEWG+, MX7538JCWG+) are ROHS3 compliant with MSL rating of 1 (Unlimited), matching the original AD7538JRZ specifications.

Q: Can these parts be used interchangeably on the same PCB assembly? A: Yes. All substitute parts use identical 24-SOIC surface-mount packaging with 0.295" (7.50mm) width. No PCB layout modification is required for substitution.

Q: What determines whether a part qualifies as a substitute? A: Substitutes must maintain identical resolution (14-bit), converter count (1), settling time (1.5µs), output type (current-unbuffered), data interface (parallel), reference type (external), supply voltage ranges (11.4V ~ 15.75V), architecture (R-2R), and mechanical packaging (24-SOIC surface mount). Variations in operating temperature range and INL/DNL specifications are permitted within the substitute classification.