ADS7844EBG4 Equivalent & Substitute Parts

Part Overview

The ADS7844EBG4 is a 12-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring simultaneous sampling and conversion. This SAR (Successive Approximation Register) architecture device features 4 or 8 differential/single-ended inputs with SPI digital interface and operates across dual supply voltage ranges (2.7V–3.6V and 5V).

The ADS7844EBG4 is discontinued at DiGi Electronics. Equivalent and substitute parts remain available in active production, making component sourcing feasible for ongoing designs and legacy system maintenance.

Substiute Parts

ADS7844EBG4

Texas InstrumentsIn Stock: 740ADS7844EBG4 Datasheet

Current PartRFQ

ADS7844EB

Texas InstrumentsIn Stock: 1740ADS7844EB Datasheet

MFR RecommendedRFQ

ADS7844E

Texas InstrumentsIn Stock: 10711ADS7844E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADS7844EBG4 is determined by strict equivalence across all electrical and mechanical parameters. The following criteria define valid substitutes:

• 12-bit resolution maintained
• 200k samples per second sampling rate
• 4 or 8 configurable input channels
• Differential and single-ended input support
• SPI digital interface protocol
• SAR architecture with external reference
• Dual supply voltage compatibility (2.7V–3.6V and 5V)
• Operating temperature range -40°C to 85°C
• 20-SSOP surface mount package
• ROHS3 compliance and MSL 2 rating

All identified substitute parts meet these criteria without exception. Differences exist only in product status (active vs. discontinued) and packaging format (tube vs. other configurations).

Parameter Comparison

Engineering Selection Recommendations

Both ADS7844EB and ADS7844E are direct functional equivalents to the ADS7844EBG4. Selection between these active alternatives should be based on:

ADS7844EB (MFR Recommended): Designated as the manufacturer-recommended substitute. Maintains identical electrical and mechanical specifications. Packaged in tube format. Current inventory: 1,729 units.

ADS7844E (Parametric Equivalent): Maintains identical electrical and mechanical specifications. Packaged in tube format. Highest current inventory availability: 10,700 units.

Both parts carry ROHS3 compliance and MSL 2 rating, ensuring regulatory and environmental compatibility with the original ADS7844EBG4. Selection may be influenced by inventory availability and supply chain lead times.

Frequently Asked Questions (FAQ)

Q: Can ADS7844EB or ADS7844E be used as direct replacements for ADS7844EBG4?

A: Yes. Both parts are electrically and mechanically identical to the ADS7844EBG4 across all specified parameters, including resolution, sampling rate, input configuration, supply voltages, operating temperature range, and package format.

Q: What is the difference between ADS7844EB and ADS7844E?

A: Both parts are parametrically equivalent. The primary difference is product status (both active) and current inventory levels. ADS7844E has higher stock availability (10,700 units vs. 1,729 units).

Q: Are there any package or pinout differences between these parts?

A: No. All three parts use the identical 20-SSOP surface mount package with 0.154" width (3.90mm). Pinout and PCB footprint compatibility is guaranteed.

Q: Do these substitutes maintain the same supply voltage requirements?

A: Yes. All parts support identical dual supply voltage ranges: 2.7V–3.6V and 5V for both analog and digital supplies.

Q: Are there compliance or certification differences?

A: No. All three parts carry ROHS3 compliance and MSL 2 (1 Year) rating, ensuring equivalent regulatory and environmental qualification.

Q: Which substitute should be selected for new designs?

A: Either ADS7844EB or ADS7844E is suitable. Both are active products with full manufacturer support. Selection may be based on inventory availability and procurement lead times.