ADS7842EB/1K Equivalent & Substitute Parts

Part Overview

The ADS7842EB/1K is a 12-bit Analog to Digital Converter manufactured by Texas Instruments, designed for data acquisition applications requiring multi-channel analog signal processing. This device features 4 single-ended inputs, a SAR (Successive Approximation Register) architecture, and operates at a 200 kSPS sampling rate. The component is currently in active production status with 1029 units available in new original stock. Finding equivalent or substitute parts is necessary to ensure design flexibility, manage supply chain continuity, and maintain component availability across manufacturing cycles.

Substiute Parts

ADS7842EB/1K

Texas InstrumentsIn Stock: 1118ADS7842EB/1K Datasheet

Current PartRFQ

ADS7842E/1K

Texas InstrumentsIn Stock: 4013ADS7842E/1K Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution for the ADS7842EB/1K is determined by strict equivalence across the following critical parameters:

• Resolution and Sampling Rate: 12-bit resolution at 200 kSPS
• Channel Configuration: 4 single-ended inputs with multiplexer and sample-and-hold architecture
• Data Interface: Parallel output interface
• Supply Voltage Compatibility: Dual supply operation at 2.7V–3.6V and 5V for both analog and digital domains
• Package and Pinout: 28-SSOP surface mount package with identical mechanical and electrical pinout
• Reference Architecture: External reference requirement
• Compliance and Certifications: ROHS3 compliance, REACH unaffected status, and MSL 2 rating

The ADS7842E/1K meets all these criteria as a parametric equivalent, differing only in packaging designation (tape and reel format) while maintaining identical electrical performance and pin compatibility.

Parameter Comparison

Engineering Selection Recommendations

Both the ADS7842EB/1K and ADS7842E/1K are active production components from Texas Instruments with identical electrical specifications and package configurations. Selection between these parts should be based on:

Inventory Availability: The ADS7842E/1K has higher stock availability (3920 units) compared to the ADS7842EB/1K (1029 units), making it suitable for high-volume production requirements or extended lead-time mitigation.

Compliance Status: Both parts maintain ROHS3 compliance and REACH unaffected status, ensuring regulatory compatibility across global markets. MSL 2 rating applies to both, requiring standard moisture control during storage and handling.

Supply Chain Continuity: Either part can be selected as a direct replacement without circuit redesign, PCB layout modification, or firmware changes, as all electrical and mechanical parameters are identical.

Frequently Asked Questions (FAQ)

Q: Can the ADS7842E/1K be used as a direct replacement for the ADS7842EB/1K in existing designs?

A: Yes. Both parts are electrically and mechanically identical. The only difference is packaging designation (tape and reel format). No circuit modifications, PCB changes, or software updates are required for substitution.

Q: What is the difference between ADS7842EB/1K and ADS7842E/1K?

A: The designation suffix indicates packaging format. Both parts use the same 28-SSOP package and have identical pin configurations, electrical performance, and supply requirements. The difference is in the supplier's packaging and delivery format.

Q: Are there any temperature or voltage operating differences between these parts?

A: No. Both parts operate across the identical temperature range (-40°C to 85°C) and support the same dual supply voltages (2.7V–3.6V and 5V) for analog and digital domains.

Q: Do both parts require external reference voltage?

A: Yes. Both the ADS7842EB/1K and ADS7842E/1K require an external reference voltage. This is a core architectural requirement and cannot be changed through part selection.

Q: Are moisture sensitivity requirements the same for both parts?

A: Yes. Both parts carry MSL 2 rating with a 1-year floor life. Identical moisture control procedures and storage conditions apply to both components.

Q: Can these parts be used interchangeably in high-volume production?

A: Yes. Both parts are suitable for high-volume manufacturing. Selection can be based on supplier availability, lead times, and inventory levels without affecting design or production processes.