ADS7846NG4 Equivalent & Substitute Parts

Part Overview

The ADS7846NG4 is a 12-bit touchscreen controller designed for 4-wire resistive touch panels with SPI interface capability. This integrated circuit provides analog-to-digital conversion and touch detection functionality for embedded display applications. The ADS7846NG4 is currently discontinued at DiGi Electronics, necessitating identification of functionally equivalent alternatives to maintain design continuity and ensure component availability for production and repair applications.

Substiute Parts

ADS7846NG4

Texas InstrumentsIn Stock: 974ADS7846NG4 Datasheet

Current PartRFQ

ADS7846N

Texas InstrumentsIn Stock: 3060ADS7846N Datasheet

MFR RecommendedRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution of the ADS7846NG4 is determined by strict equivalence across the following critical parameters:

• Touchscreen Interface: 4-wire resistive touch panel compatibility
• Resolution: 12-bit analog-to-digital conversion capability
• Communication Protocol: SPI serial interface
• Voltage Reference Options: Support for both external and internal reference configurations
• Supply Voltage Compatibility: Operating range of 2.2V to 5.25V
• Package Footprint: 16-TSSOP surface mount package with identical pin configuration
• Thermal Performance: Operating temperature range of -40°C to 85°C
• Regulatory Compliance: ROHS3 compliance and REACH unaffected status

The ADS7846N meets all substitution criteria as a direct functional equivalent from the same manufacturer (Texas Instruments) within the ADS7846 base product family.

Parameter Comparison

Engineering Selection Recommendations

The ADS7846N is the direct substitute for the discontinued ADS7846NG4. Both components share identical electrical specifications, package footprint, and regulatory compliance certifications. The primary distinction is product status: the ADS7846N maintains active availability through distribution channels, whereas the ADS7846NG4 has been discontinued.

Selection of the ADS7846N ensures:

• Pin-for-pin compatibility with existing PCB layouts designed for the ADS7846NG4
• Identical firmware and driver software compatibility
• Maintained compliance with ROHS3 and REACH regulatory requirements
• Consistent thermal and electrical performance across the specified operating range
• Sustained supply chain availability for production and field replacement applications

Frequently Asked Questions (FAQ)

Q: Can the ADS7846N be used as a direct replacement for the ADS7846NG4 on existing PCBs?

A: Yes. The ADS7846N is pin-for-pin compatible with the ADS7846NG4. Both components use the 16-TSSOP package with identical pinout, electrical characteristics, and functional specifications. No PCB modifications are required.

Q: Are there differences in the packaging or moisture sensitivity between these parts?

A: No. Both the ADS7846NG4 and ADS7846N are supplied in 16-TSSOP surface mount packages with identical dimensions (0.173" width, 4.40mm). Both carry Moisture Sensitivity Level 2 (1 Year) rating.

Q: What is the primary reason for substitution?

A: The ADS7846NG4 is discontinued at DiGi Electronics. The ADS7846N provides identical functionality and specifications while maintaining active product status and supply availability.

Q: Do both parts support the same voltage reference configurations?

A: Yes. Both the ADS7846NG4 and ADS7846N support external and internal voltage reference options, with identical supply voltage operating ranges of 2.2V to 5.25V.

Q: Are there any compliance or certification differences?

A: No. Both components are ROHS3 compliant and REACH unaffected, ensuring equivalent regulatory compliance for applications requiring these certifications.