ADT7310TRZ Temperature Sensor - Equivalent & Substitute Parts

Part Overview

The ADT7310TRZ is an active, production-status digital temperature sensor manufactured by Analog Devices Inc., designed for local temperature measurement applications across industrial and commercial ranges. This 8-SOIC surface mount device operates across -55°C to 150°C with 15-bit resolution and SPI output interface. Finding equivalent or substitute parts may be necessary due to supply constraints, packaging requirements, or application-specific integration needs while maintaining functional compatibility.

Substiute Parts

ADT7310TRZ

Analog Devices Inc.In Stock: 3095ADT7310TRZ Datasheet

Current PartRFQ

ADT7320UCPZ-R2

Analog Devices Inc.In Stock: 1308ADT7320UCPZ-R2 Datasheet

SimilarRFQ

Key Parameters

Substitute Part Grouping Explanation

Substitution eligibility for the ADT7310TRZ is determined by the following critical parameters:

• Sensor Type: Must be Digital, Local temperature sensing
• Output Interface: Must support SPI communication protocol
• Resolution: Must maintain 15-bit resolution minimum
• Supply Voltage Range: Must operate within 2.7V ~ 5.5V envelope
• Temperature Operating Range: Must cover at least the -55°C ~ 150°C span or a subset thereof
• Mounting Type: Surface mount technology required
• Manufacturer Compliance: RoHS3 and REACH compliance required

The ADT7320UCPZ-R2 qualifies as a functional substitute based on these parameters. While packaging differs (16-LFCSP versus 8-SOIC), the electrical specifications, communication protocol, and environmental operating conditions remain compatible for applications where PCB layout can accommodate the alternative package footprint.

Parameter Comparison

Engineering Selection Recommendations

ADT7310TRZ remains the primary choice for applications requiring:

• Extended low-temperature operation below -40°C
• Minimal moisture sensitivity handling (MSL 1 rating)
• Compact 8-SOIC footprint with space constraints
• Highest accuracy specification (±0.44°C)

ADT7320UCPZ-R2 is suitable as a substitute when:

• Operating temperature range does not require below -40°C operation
• PCB layout can accommodate 16-LFCSP package footprint
• Slightly reduced accuracy (±0.5°C) is acceptable for the application
• Moisture sensitivity management (MSL 3, 168-hour limit) is compatible with assembly and storage procedures

Both parts maintain identical supply voltage compatibility, SPI interface protocol, 15-bit resolution, and regulatory compliance (ROHS3, REACH Unaffected, EAR99 classification).

Frequently Asked Questions (FAQ)

Q: Can ADT7320UCPZ-R2 replace ADT7310TRZ in all applications?

A: Substitution is valid only when the application does not require temperature measurement below -40°C. The ADT7310TRZ extends to -55°C minimum operating temperature. All other electrical parameters and communication protocols are compatible.

Q: What is the primary difference between these two parts?

A: The main differences are package type (8-SOIC versus 16-LFCSP), temperature range floor (-55°C versus -40°C), accuracy specification (±0.44°C versus ±0.5°C), and moisture sensitivity level (MSL 1 versus MSL 3). Electrical functionality and SPI interface are identical.

Q: Are there pin-to-pin compatibility considerations?

A: No. These parts use different package types (8-SOIC and 16-LFCSP) with different pin counts and layouts. PCB redesign is required for substitution. Consult the respective datasheets for pinout and signal mapping.

Q: Do both parts support the same SPI communication protocol?

A: Yes. Both ADT7310TRZ and ADT7320UCPZ-R2 use identical SPI interface specifications for temperature data output and configuration.

Q: What is the impact of MSL rating differences?

A: ADT7310TRZ (MSL 1) has unlimited shelf life under standard conditions. ADT7320UCPZ-R2 (MSL 3) requires moisture bake-out procedures if storage exceeds 168 hours in high-humidity environments. This affects supply chain handling and assembly preparation.

Q: Are both parts currently in production?

A: Yes. Both ADT7310TRZ and ADT7320UCPZ-R2 maintain Active product status with Analog Devices Inc.