ADS7863IRGET Equivalent & Substitute Parts

Part Overview

The ADS7863IRGET is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring simultaneous sampling across multiple input channels. This device features a Successive Approximation Register (SAR) architecture with dual converters, supporting 4 or 6 differential and pseudo-differential inputs at a 2 MHz sampling rate.

The ADS7863IRGET carries a "Not For New Designs" product status, indicating Texas Instruments has discontinued active development and support for this component. This status necessitates identifying functionally equivalent alternatives for new designs and ongoing production requirements.

Substiute Parts

ADS7863IRGET
Texas InstrumentsIn Stock: 1483ADS7863IRGET Datasheet
ADS7863IRGET
Current Part
ADS7863ARGET
Texas InstrumentsIn Stock: 1598ADS7863ARGET Datasheet
ADS7863ARGET
Parametric Equivalent

Key Parameters

Parameter Value
Resolution 12 Bits
Sampling Rate 2 MHz
Number of Inputs 4, 6
Input Type Differential, Pseudo-Differential
Number of A/D Converters 2
Architecture SAR
Data Interface SPI
Supply Voltage (Analog) 2.7V ~ 5.5V
Supply Voltage (Digital) 2.7V ~ 5.5V
Package 24-VQFN (4x4)
Operating Temperature -40°C ~ 125°C

Substitute Part Grouping Explanation

Substitution eligibility for the ADS7863IRGET is determined by strict equivalence across the following critical parameters:

  • 12-bit resolution
  • 2 MHz sampling rate
  • Dual SAR converter architecture
  • 4 or 6 differential and pseudo-differential input channels
  • SPI digital interface
  • 2.7V to 5.5V supply voltage range (both analog and digital)
  • 24-VQFN (4x4) package with exposed pad
  • Simultaneous sampling capability
  • External and internal reference type support

The ADS7863ARGET meets all these criteria and qualifies as a parametric equivalent. The primary distinction between these parts is product lifecycle status rather than electrical or mechanical specifications.

Parameter Comparison

Parameter ADS7863IRGET ADS7863ARGET
Manufacturer Texas Instruments Texas Instruments
Resolution 12 Bits 12 Bits
Sampling Rate 2 MHz 2 MHz
Number of Inputs 4, 6 4, 6
Input Type Differential, Pseudo-Differential Differential, Pseudo-Differential
Number of A/D Converters 2 2
Architecture SAR SAR
Data Interface SPI SPI
Supply Voltage (Analog) 2.7V ~ 5.5V 2.7V ~ 5.5V
Supply Voltage (Digital) 2.7V ~ 5.5V 2.7V ~ 5.5V
Package 24-VQFN (4x4) 24-VQFN (4x4)
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C
Product Status Not For New Designs Active
RoHS Status ROHS3 Compliant ROHS3 Compliant
Moisture Sensitivity Level 3 (168 Hours) 3 (168 Hours)
REACH Status REACH Unaffected REACH Unaffected

Engineering Selection Recommendations

The ADS7863ARGET is the direct substitute for the ADS7863IRGET. Both components are ROHS3 compliant and REACH unaffected, meeting current environmental and regulatory requirements. The ADS7863ARGET maintains active product status with Texas Instruments, ensuring continued availability and technical support.

For new designs, the ADS7863ARGET is the appropriate selection. For existing applications currently using the ADS7863IRGET, migration to the ADS7863ARGET presents no electrical or mechanical compatibility issues, as all functional parameters remain identical.

Frequently Asked Questions (FAQ)

Q: Can the ADS7863ARGET directly replace the ADS7863IRGET in existing designs?

A: Yes. Both parts share identical electrical specifications, pin configurations, and package geometry. No circuit modifications are required for substitution.

Q: What is the significance of the product status difference?

A: The ADS7863IRGET is designated "Not For New Designs," indicating Texas Instruments has concluded active development. The ADS7863ARGET maintains "Active" status, ensuring ongoing manufacturing, availability, and technical support from the manufacturer.

Q: Are there any compliance or certification differences?

A: No. Both parts carry identical RoHS3 compliance, REACH unaffected status, and moisture sensitivity ratings. Regulatory and environmental requirements are equivalent.

Q: What are the critical parameters for substitution eligibility?

A: Resolution (12-bit), sampling rate (2 MHz), dual SAR architecture, input configuration (4 or 6 differential/pseudo-differential channels), SPI interface, supply voltage range (2.7V–5.5V), and 24-VQFN package are the determining factors.

Q: Is the 24-VQFN package identical between both parts?

A: Yes. Both components use the 24-VQFN (4x4) package with exposed pad. Pin assignments and mechanical dimensions are identical.

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