AD7872KRZ Equivalent & Substitute Parts

Part Overview

The AD7872KRZ is a 14-bit Analog to Digital Converter manufactured by Analog Devices Inc., configured as a single-channel SAR (Successive Approximation Register) architecture device in a 16-SOIC surface mount package. This data acquisition component features dual supply operation (±5V analog and digital), SPI and parallel data interfaces, and an internal reference. The device is Active in product status and ROHS3 compliant. Substitute parts are identified when equivalent electrical and mechanical parameters align with application requirements, particularly when inventory availability or operating temperature ranges necessitate alternative part selection.

Substiute Parts

AD7872KRZ

Analog Devices Inc.In Stock: 795AD7872KRZ Datasheet

Current PartRFQ

AD7872BRZ

Analog Devices Inc.In Stock: 1226AD7872BRZ Datasheet

DirectRFQ

AD7872JRZ

Analog Devices Inc.In Stock: 3559AD7872JRZ Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the AD7872KRZ are identified based on strict electrical and mechanical parameter equivalence within the AD7872 base product family. The substitution criteria are:

Critical Parameters for Substitution:

• Resolution: 14 bits
• Sampling Rate: 83k samples per second
• Number of Inputs: 1 (single-channel)
• Input Type: Single Ended
• Data Interface: SPI and Parallel capability
• Architecture: SAR
• Reference Type: Internal
• Supply Voltages: ±5V (analog and digital)
• Package: 16-SOIC form factor
• Mounting: Surface Mount

Allowable Variation:

• Operating Temperature Range: Substitutes may have extended or different temperature specifications while maintaining all other electrical parameters

The AD7872BRZ and AD7872JRZ are direct substitutes within the AD7872 product line, differing only in temperature rating specifications while maintaining identical functional and mechanical characteristics.

Parameter Comparison

Engineering Selection Recommendations

All three parts—AD7872KRZ, AD7872BRZ, and AD7872JRZ—are Active products from Analog Devices Inc. with ROHS3 compliance and identical functional specifications. Selection between these parts is determined by operating temperature requirements:

AD7872KRZ: Suitable for applications operating within 0°C to 70°C. Standard industrial temperature range.

AD7872BRZ: Suitable for applications requiring extended temperature operation from -40°C to 85°C. Recommended for automotive, industrial, or harsh environment applications where wider temperature tolerance is necessary.

AD7872JRZ: Suitable for applications operating within 0°C to 70°C. Equivalent to AD7872KRZ in temperature specification.

All parts maintain identical electrical performance, package form factor, and compliance certifications. Selection should be based on the specific operating temperature requirements of the target application.

Frequently Asked Questions (FAQ)

Q: Can AD7872BRZ replace AD7872KRZ in any application? A: Yes. The AD7872BRZ is electrically and mechanically equivalent to the AD7872KRZ. The AD7872BRZ features an extended operating temperature range (-40°C to 85°C) compared to the AD7872KRZ (0°C to 70°C). If your application operates within 0°C to 70°C, both parts are functionally interchangeable. If your application requires operation below 0°C or above 70°C, the AD7872BRZ is required.

Q: What is the difference between AD7872KRZ and AD7872JRZ? A: Both parts have identical operating temperature ranges (0°C to 70°C) and all electrical specifications. They are parametric equivalents within the AD7872 product family and are directly interchangeable.

Q: Are all three parts pin-compatible? A: Yes. All three parts use the 16-SOIC package with identical pinout and mechanical dimensions (0.295" width, 7.50mm). They are pin-compatible and can be used as direct substitutes on the same PCB layout.

Q: Do these parts have the same data interface capabilities? A: Yes. All three parts support both SPI and parallel data interfaces, providing identical communication options for system integration.

Q: Are there any compliance or certification differences between these parts? A: No. All three parts are ROHS3 compliant, have identical MSL ratings (3, 168 Hours), and maintain the same REACH and ECCN classifications.

Q: Which part should I select for a new design? A: For new designs, select based on your application's operating temperature requirements. If operation is limited to 0°C to 70°C, AD7872KRZ or AD7872JRZ are appropriate. For applications requiring extended temperature range, specify AD7872BRZ.