ADS8345EB Equivalent & Substitute Parts

Part Overview

The ADS8345EB is a 16-bit Analog to Digital Converter (ADC) manufactured by Texas Instruments, designed for data acquisition applications requiring high-resolution signal conversion. This SAR (Successive Approximation Register) architecture device operates with 4 or 8 differential/single-ended inputs and communicates via SPI interface. The part is currently in active production status with 1700 units in stock. Equivalent and substitute parts are identified when design flexibility, inventory availability, or supply chain optimization is required while maintaining full functional compatibility.

Substiute Parts

ADS8345EB

Texas InstrumentsIn Stock: 1717ADS8345EB Datasheet

Current PartRFQ

ADS8344E

Texas InstrumentsIn Stock: 5931ADS8344E Datasheet

Parametric EquivalentRFQ

ADS8344EB

Texas InstrumentsIn Stock: 9636ADS8344EB Datasheet

Parametric EquivalentRFQ

ADS8345E

Texas InstrumentsIn Stock: 1972ADS8345E Datasheet

Parametric EquivalentRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitute parts for the ADS8345EB are identified based on strict parametric equivalence across all critical electrical and mechanical specifications. The substitution logic is based on the following key parameters that must remain identical:

• 16-bit resolution
• 100k samples per second sampling rate
• 4 or 8 configurable input channels
• Differential and single-ended input capability
• SPI serial data interface
• SAR architecture with external reference
• Dual supply voltage ranges (2.7V–3.6V and 5V)
• Operating temperature range of -40°C to 85°C
• 20-SSOP surface mount package with 3.90mm width
• ROHS3 compliance

All identified substitute parts maintain these parameters without deviation. Differences in packaging type (Tube vs. other formats), moisture sensitivity level (MSL), and inventory availability do not affect functional substitutability.

Parameter Comparison

Engineering Selection Recommendations

All identified substitute parts—ADS8344E, ADS8344EB, and ADS8345E—are functionally equivalent to the ADS8345EB and maintain active production status with Texas Instruments. Each part carries ROHS3 compliance certification, confirming adherence to hazardous substance restrictions.

Selection among these parts should be based on:

• Inventory availability: ADS8344EB offers the highest stock level (9622 units), followed by ADS8344E (5848 units), ADS8345E (1946 units), and ADS8345EB (1700 units).
• Moisture sensitivity level: ADS8345EB and ADS8345E specify MSL 2 (1 Year), while ADS8344EB specifies MSL 3 (168 Hours). This affects storage and handling requirements.
• Packaging format: ADS8345EB and ADS8344EB are supplied in Tube packaging; ADS8344E and ADS8345E packaging specifications vary.

All parts are suitable for direct substitution in applications requiring 16-bit SAR ADC functionality with SPI interface and dual supply voltage operation.

Frequently Asked Questions (FAQ)

Q: Can ADS8344E, ADS8344EB, and ADS8345E be used interchangeably with ADS8345EB?

A: Yes. All four parts share identical electrical specifications, including 16-bit resolution, 100k sampling rate, SPI interface, and dual supply voltage ranges. They are housed in the same 20-SSOP package and operate across the same temperature range. Functional substitution is direct without circuit modification.

Q: What is the difference between ADS8345EB and ADS8345E?

A: Both parts are identical in electrical and mechanical specifications. The primary difference is packaging format and moisture sensitivity level. ADS8345EB is supplied in Tube packaging with MSL 2 (1 Year), while ADS8345E has different packaging specifications but maintains the same MSL 2 rating.

Q: What is the difference between ADS8344E and ADS8344EB?

A: Both parts are electrically identical 16-bit SAR ADCs with SPI interface. ADS8344EB specifies MSL 3 (168 Hours) compared to ADS8344E's MSL 2 (1 Year). This affects moisture exposure limits during storage and handling. ADS8344EB is supplied in Tube packaging.

Q: Does moisture sensitivity level affect circuit performance?

A: Moisture sensitivity level (MSL) does not affect electrical performance or functionality. It specifies maximum moisture exposure limits during storage and handling prior to soldering. MSL 2 allows 1 year of storage under controlled conditions, while MSL 3 allows 168 hours. Proper storage conditions prevent performance degradation.

Q: Are all substitute parts ROHS3 compliant?

A: Yes. ADS8345EB, ADS8344E, ADS8344EB, and ADS8345E are all ROHS3 compliant, confirming compliance with hazardous substance restrictions in electronic equipment.

Q: Can these parts operate with both 3.3V and 5V supplies?

A: Yes. All parts support dual supply voltage ranges: 2.7V to 3.6V and 5V for both analog and digital supplies. This allows flexible integration into systems with different voltage domains.

Q: What is the significance of the SAR architecture?

A: SAR (Successive Approximation Register) architecture provides 16-bit resolution at 100k samples per second with external reference capability. This architecture is suitable for applications requiring moderate sampling rates with high resolution and low power consumption.