ADS8513IBDW Equivalent & Substitute Parts

Part Overview

The ADS8513IBDW is a 16-bit Analog to Digital Converter manufactured by Texas Instruments, designed for single-ended input data acquisition applications. This SAR (Successive Approximation Register) architecture device operates at 40k samples per second with external or internal reference capability. The part is currently in Active product status with 1605 units available in stock.

Substitute parts become necessary when the primary part reaches end-of-life status, inventory constraints occur, or design flexibility is required across manufacturing batches. The ADS7813U has transitioned to Last Time Buy status, making identification of compatible alternatives essential for long-term supply chain planning.

Key Parameters

Parameter	Value
Resolution (Bits)	16
Sampling Rate	40k samples per second
Number of Inputs	1
Input Type	Single Ended
Data Interface	SPI
Architecture	SAR
Reference Type	External, Internal
Analog Supply Voltage	5V
Digital Supply Voltage	5V
Operating Temperature Range	-40°C to 85°C
Package	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount

Substitute Part Grouping Explanation

Substitution eligibility for the ADS8513IBDW is determined by strict equivalence across the following parameters:

16-bit resolution
40k samples per second sampling rate
Single input, single-ended configuration
SPI digital interface
SAR architecture with S/H-ADC configuration (1:1 ratio)
External and internal reference capability
5V analog and digital supply voltages
-40°C to 85°C operating temperature range
16-SOIC surface mount package

Both identified substitute parts—ADS7813U and ADS8513IDW—match all core electrical and mechanical parameters. Differences exist only in product lifecycle status and moisture sensitivity classification, which do not affect functional equivalence in applications meeting the specified environmental conditions.

Parameter Comparison

Parameter	ADS8513IBDW	ADS7813U	ADS8513IDW
Manufacturer	Texas Instruments	Texas Instruments	Texas Instruments
Resolution	16 Bit	16 Bit	16 Bit
Sampling Rate	40k	40k	40k
Number of Inputs	1	1	1
Input Type	Single Ended	Single Ended	Single Ended
Data Interface	SPI	SPI	SPI
Architecture	SAR	SAR	SAR
Reference Type	External, Internal	External, Internal	External, Internal
Analog Supply Voltage	5V	5V	5V
Digital Supply Voltage	5V	5V	5V
Operating Temperature	-40°C ~ 85°C	-40°C ~ 85°C	-40°C ~ 85°C
Package / Case	16-SOIC (0.295", 7.50mm Width)	16-SOIC (0.295", 7.50mm Width)	16-SOIC (0.295", 7.50mm Width)
Mounting Type	Surface Mount	Surface Mount	Surface Mount
Product Status	Active	Last Time Buy	Active
RoHS Status	ROHS3 Compliant	ROHS3 Compliant	ROHS3 Compliant
Moisture Sensitivity Level	2 (1 Year)	3 (168 Hours)	2 (1 Year)
REACH Status	REACH Unaffected	REACH Unaffected	REACH Unaffected
ECCN	EAR99	EAR99	EAR99
HTSUS Code	8542.39.0001	8542.39.0001	8542.39.0001
Inventory Status	1605 Pcs New Original In Stock	1363 Pcs New Original In Stock	1310 Pcs New Original In Stock

Engineering Selection Recommendations

ADS8513IDW is the primary substitute for ADS8513IBDW. Both parts share identical Active product status, matching moisture sensitivity classification (MSL 2, 1 Year), and equivalent compliance certifications. This part provides direct functional and supply chain continuity with no environmental or handling requirement changes.

ADS7813U is a secondary substitute option. While electrically and mechanically equivalent, this part carries Last Time Buy status and elevated moisture sensitivity classification (MSL 3, 168 Hours). Selection of ADS7813U requires confirmation that storage and handling procedures accommodate the more stringent moisture control requirements. This part is suitable for applications where supply from ADS8513IBDW and ADS8513IDW is exhausted and moisture-controlled storage is available.

All three parts maintain ROHS3 compliance, REACH Unaffected status, and identical export classification (EAR99), ensuring regulatory consistency across substitution scenarios.

Frequently Asked Questions (FAQ)

Q: Can ADS8513IDW be used as a direct replacement for ADS8513IBDW?

A: Yes. ADS8513IDW is functionally and mechanically equivalent to ADS8513IBDW across all electrical parameters, package specifications, and environmental ratings. Both parts are Active status with identical moisture sensitivity classification.

Q: What is the difference between ADS7813U and ADS8513IBDW?

A: Electrical and mechanical specifications are identical. The primary differences are product lifecycle status (ADS7813U is Last Time Buy) and moisture sensitivity level (ADS7813U is MSL 3 versus MSL 2 for ADS8513IBDW). MSL 3 classification requires storage at relative humidity below 10% or in dry-pack containers with desiccant, with a floor life of 168 hours after opening.

Q: Are all three parts pin-compatible?

A: Yes. All three parts use the 16-SOIC package with identical pinout and electrical interface specifications. PCB layout and schematic connections require no modification.

Q: Do supply voltage requirements differ between these parts?

A: No. All three parts require 5V analog supply and 5V digital supply with identical operating specifications.

Q: Which part should be selected for new designs?

A: ADS8513IBDW or ADS8513IDW are recommended for new designs due to Active product status. Both parts offer equivalent long-term availability and identical environmental handling requirements.

Q: Is moisture sensitivity a concern for standard manufacturing environments?

A: ADS8513IBDW and ADS8513IDW (MSL 2) are suitable for standard manufacturing environments with typical humidity control. ADS7813U (MSL 3) requires enhanced moisture control during storage and handling. Consult manufacturing process specifications to confirm compatibility.

Q: Are there any compliance or certification differences?

A: No. All three parts are ROHS3 compliant, REACH Unaffected, and classified as EAR99 for export purposes.

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