Equivalent & Substitute Parts Reference for ADS7951SDBT

Part Overview

The ADS7951SDBT is a 12-bit SAR analog-to-digital converter manufactured by Texas Instruments, featuring 8 single-ended inputs, an SPI data interface, and a sampling rate of 1 megasample per second. It is supplied in a 30-TSSOP surface-mount package and supports external voltage reference. This component bears active status and is RoHS3 compliant. Substitution is necessary in scenarios such as inventory depletion, supply chain constraints, or multi-sourcing requirements. The evaluation of substitute models is strictly governed by matching key parametric and compliance specifications within the Data Acquisition product category.

Substiute Parts

ADS7951SDBT
Texas InstrumentsIn Stock: 5682ADS7951SDBT Datasheet
ADS7951SDBT
Current Part
ADS7951SBDBT
Texas InstrumentsIn Stock: 1190ADS7951SBDBT Datasheet
ADS7951SBDBT
Parametric Equivalent

Key Parameters

Parameter ADS7951SDBT
Number of Bits 12
Sampling Rate (Per Second) 1M
Number of Inputs 8
Input Type Single Ended
Data Interface SPI
Configuration MUX-S/H-ADC
Ratio - S/H:ADC 1:1
Number of A/D Converters 1
Architecture SAR
Reference Type External
Voltage - Supply, Analog 2.7V ~ 5.25V
Voltage - Supply, Digital 1.7V ~ 5.25V
Operating Temperature -40°C ~ 125°C
Package / Case 30-TFSOP (0.173", 4.40mm Width)
Supplier Device Package 30-TSSOP
Mounting Type Surface Mount
RoHS Status ROHS3 Compliant
MSL 2 (1 Year)
REACH Status REACH Unaffected
ECCN EAR99

Substitute Part Grouping Explanation

Substitution within the Data Acquisition category is determined exclusively by exact matching of fundamental electrical and mechanical parameters. Key substitution criteria include: bit depth, sampling rate, input count and type, data interface, functional configuration, voltage supply range (analog and digital), operating temperature range, package type, mounting method, RoHS and REACH compliance, and ECCN. Only devices matching all specified parameters are listed as equivalents.

Parameter Comparison

Parameter ADS7951SDBT ADS7951SBDBT
Manufacturer Texas Instruments Texas Instruments
Number of Bits 12 12
Sampling Rate (Per Second) 1M 1M
Number of Inputs 8 8
Input Type Single Ended Single Ended
Data Interface SPI SPI
Configuration MUX-S/H-ADC MUX-S/H-ADC
Ratio - S/H:ADC 1:1 1:1
Number of A/D Converters 1 1
Architecture SAR SAR
Reference Type External External
Voltage - Supply, Analog 2.7V ~ 5.25V 2.7V ~ 5.25V
Voltage - Supply, Digital 1.7V ~ 5.25V 1.7V ~ 5.25V
Operating Temperature -40°C ~ 125°C -40°C ~ 125°C
Package / Case 30-TFSOP (0.173", 4.40mm Width) 30-TFSOP (0.173", 4.40mm Width)
Supplier Device Package 30-TSSOP 30-TSSOP
Mounting Type Surface Mount Surface Mount
RoHS Status ROHS3 Compliant ROHS3 Compliant
MSL 2 (1 Year) 2 (1 Year)
REACH Status REACH Unaffected REACH Unaffected
ECCN EAR99 EAR99

Engineering Selection Recommendations

Selection between ADS7951SDBT and ADS7951SBDBT should be based exclusively on product status, compliance, and provided certifications. Both parts are actively supported by the manufacturer, are ROHS3 compliant, unaffected by REACH regulations, feature an MSL rating of 2 (1 Year), and share identical ECCN classifications. Parameter equivalence validates their suitability for drop-in substitution in relevant Data Acquisition circuit designs.

Frequently Asked Questions (FAQ)

Q1: What are the essential parameters for substituting the ADS7951SDBT?
A1: Substitution requires identical bit depth, sampling rate, input count and type, data interface, configuration, voltage supply range, operating temperature, package type, mounting type, and compliance status.

Q2: Can the substitute part ADS7951SBDBT be used directly in place of ADS7951SDBT?
A2: Yes. ADS7951SBDBT matches all electrical, mechanical, and compliance parameters as listed.

Q3: Is there any difference in packaging form factor between ADS7951SDBT and ADS7951SBDBT?
A3: Both parts are supplied in the 30-TFSOP (0.173", 4.40mm Width) package, 30-TSSOP device outline, with surface mount capability.

Q4: Are both parts RoHS3 compliant and REACH unaffected?
A4: Yes. Both ADS7951SDBT and ADS7951SBDBT are ROHS3 compliant and REACH unaffected.

Q5: What considerations should be given to Moisture Sensitivity Level (MSL)?
A5: The specified MSL is 2 (1 Year) for both models, supporting equivalent handling requirements in production environments.

Q6: Is the ECCN identical for all substitution options?
A6: Yes, both parts are classified as EAR99.

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