ADS7842EB Equivalent & Substitute Parts

Part Overview

The ADS7842EB is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring multi-channel analog signal conversion. This SAR (Successive Approximation Register) architecture device features 4 single-ended inputs with parallel data interface and external reference capability. The part is currently in active production status with full RoHS3 compliance and REACH unaffected designation. Substitute parts are identified when equivalent electrical specifications, mechanical packaging, and compliance certifications align with the original component, enabling direct replacement in existing designs without circuit modification.

Substiute Parts

ADS7842EB

Texas InstrumentsIn Stock: 1525ADS7842EB Datasheet

Current PartRFQ

ADS7842E

Texas InstrumentsIn Stock: 1346ADS7842E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

The ADS7842E qualifies as a parametric equivalent to the ADS7842EB based on strict alignment of electrical and mechanical specifications. Substitution eligibility is determined by the following critical parameters:

• Resolution and Sampling Rate: Both parts maintain 12-bit resolution at 200k samples per second
• Input Configuration: Identical 4 single-ended input channels with MUX-S/H-ADC configuration
• Data Interface and Architecture: Both use parallel interface with SAR architecture and 1:1 S/H:ADC ratio
• Supply Voltage Specifications: Matching analog (2.7V ~ 3.6V, 5V) and digital (2.7V ~ 3.6V, 5V) supply ranges
• Operating Temperature: Identical -40°C ~ 85°C operating range
• Package and Mounting: Both specified in 28-SSOP surface mount package with identical physical dimensions
• Compliance and Certifications: Both parts carry ROHS3 compliance, REACH unaffected status, and identical MSL rating of 2 (1 Year)

Parameter Comparison

Engineering Selection Recommendations

Both the ADS7842EB and ADS7842E are active production components from Texas Instruments with full regulatory compliance. Selection between these parts should be based on inventory availability and supply chain considerations, as all electrical, mechanical, and compliance parameters are identical. Both parts maintain ROHS3 compliance and REACH unaffected status, meeting environmental and regulatory requirements for industrial and commercial applications. The 28-SSOP surface mount package ensures compatibility with standard PCB assembly processes. MSL rating of 2 (1 Year) applies to both parts, requiring standard moisture control during storage and handling.

Frequently Asked Questions (FAQ)

Q: Can ADS7842E be used as a direct replacement for ADS7842EB? A: Yes. All electrical specifications, package dimensions, mounting type, and compliance certifications are identical between the two parts. No circuit modifications or PCB layout changes are required.

Q: Are there differences in supply voltage requirements? A: No. Both parts support identical analog supply voltage ranges (2.7V ~ 3.6V, 5V) and digital supply voltage ranges (2.7V ~ 3.6V, 5V). Power supply design remains unchanged.

Q: Do both parts have the same pin configuration? A: Yes. Both parts use the 28-SSOP package with identical physical dimensions (0.209", 5.30mm Width) and surface mount mounting type. PCB footprints are interchangeable.

Q: What is the significance of the MSL rating for these parts? A: Both parts carry MSL rating 2 (1 Year), indicating they require standard moisture control during storage. Components must be stored in controlled humidity environments and handled according to IPC-A-610 standards.

Q: Are both parts RoHS compliant? A: Yes. Both ADS7842EB and ADS7842E are ROHS3 compliant and REACH unaffected, meeting environmental regulations for electronic components in regulated markets.

Q: What is the sampling rate capability of these ADCs? A: Both parts operate at 200k samples per second, supporting real-time data acquisition applications requiring this conversion speed with 12-bit resolution across 4 input channels.