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Analog Devices Inc. ADT7310TRZ-REEL7
- Part No.:
- ADT7310TRZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
ADT7310TRZ-REEL7.pdf
- Description:
- SENSOR DIGITAL -55C-150C 8SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:1,326
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Product details
Overview
ADT7310TRZ-REEL7 from Analog Devices is a high-accuracy, 16-bit digital SPI temperature sensor in an 8-lead narrow SOIC package. It delivers ±0.5°C accuracy from −40°C to +105°C at 2.7 V–3.6 V, 0.0078°C resolution in 16-bit mode, and fast 6 ms first-conversion time on power-up-used for thermal protection in industrial process control and medical equipment.
For engineers reviewing the ADT7310TRZ-REEL7 datasheet, ADT7310TRZ-REEL7 pinout, ADT7310TRZ-REEL7 application, or ADT7310TRZ-REEL7 equivalent, key selection criteria include guaranteed ±0.5°C accuracy over −55°C to +150°C, programmable critical/over/undertemperature interrupts via CT/INT open-drain outputs, and low-power 1 SPS mode (46 µA at 3.3 V).
Technical Context
The ADT7310TRZ-REEL7 integrates a band gap temperature sensor, sigma-delta (Σ-Δ) modulator, and 13-bit ADC (extendable to 16-bit), with internal reference and oscillator-no external components required. Its conversion architecture uses oversampling and digital filtering to achieve 0.0078°C resolution and ±0.5°C accuracy without user calibration.
It supports three operating modes: continuous conversion (240 ms per reading), one-shot (6 ms first read, then shutdown), and 1 SPS (60 ms conversion + 940 ms idle). The CT and INT pins operate as programmable open-drain comparators or interrupt outputs, configurable for polarity and fault queue depth (1–4 consecutive faults).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±0.5°C from −40°C to +105°C at 2.7–3.6 V - enables reliable thermal trip points in safety-critical systems |
| Resolution | 16-bit (0.0078°C) - selectable via configuration register Bit 7; default is 13-bit (0.0625°C) |
| Conversion Time | 6 ms (first power-up), 240 ms (continuous), 60 ms (1 SPS) - determines thermal response latency in real-time monitoring |
| Supply Range | 2.7 V to 5.5 V - supports direct interface with 3.3 V and 5 V microcontrollers without level shifting |
| Power Consumption | 700 µW typical at 3.3 V (normal mode); 7 µW typical at 3.3 V (shutdown) - suitable for battery-powered handheld applications |
| Operating Temp | −55°C to +150°C - qualified for harsh environments including motor drives and power converters |
| Interface | SPI-compatible (4-wire, CS/SCLK/DIN/DOUT) - compatible with standard MCU SPI peripherals; no I²C or UART required |
Pinout & Package
ADT7310TRZ-REEL7 is housed in an RoHS-compliant 8-lead narrow SOIC (SOIC-N) package (5.0 mm × 4.0 mm × 1.5 mm), optimized for space-constrained PCB layouts and reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SCLK | Serial clock input | Controls timing of SPI data transfer; falling edge clocks data out, rising edge clocks data in |
| DOUT | Serial data output | Provides 16-bit temperature value or register contents; valid on SCLK rising edge |
| DIN | Serial data input | Accepts SPI command bytes and register writes; sampled on SCLK rising edge |
| CS | Chip select input | Active-low enable; device ignores SPI activity when high - enables multi-device bus sharing |
| VDD | Positive supply | 2.7–5.5 V analog/digital rail; requires 0.1 µF ceramic decoupling to GND per datasheet |
| GND | Analog & digital ground | Single ground reference for all circuitry; must be low-impedance connection to minimize noise |
| INT | Programmable interrupt output | Open-drain; asserts when temperature exceeds THIGH/TLOW limits - requires external pull-up (e.g., 10 kΩ) |
| CT | Critical overtemperature output | Open-drain; asserts when temperature exceeds TCRIT (default 147°C) - independent fault detection path |
Key Features
| Feature | Design Value |
|---|---|
| No calibration required | Factory-trimmed sensor and reference eliminate system-level calibration effort and BOM cost |
| Programmable fault queue | 1–4 consecutive out-of-limit readings required before INT/CT assertion - prevents false triggers in noisy thermal environments |
| Multiple low-power modes | 1 SPS mode (46 µA @ 3.3 V) and shutdown mode (2 µA @ 3.3 V) extend battery life in portable devices |
| Two independent alert outputs | Separate CT (critical) and INT (configurable over/undertemperature) pins enable tiered thermal response strategies |
| Fast wake-up & conversion | 6 ms first conversion after power-up or exit from shutdown - supports rapid thermal assessment in safety-critical startups |
Applications
| Medical Thermal Monitoring | Industrial Motor Protection |
|---|---|
Use Scenario: Real-time core temperature tracking in portable ultrasound or infusion pumps where thermal drift affects measurement stability. IC Role / Device Role / Timing Role: Primary temperature sensing element interfacing directly with MCU via SPI; provides calibrated digital output every 100 ms in continuous mode. Use Value: ±0.5°C accuracy ensures compliance with IEC 60601-1 thermal safety thresholds; 16-bit resolution enables fine-grained thermal trend analysis. |
Use Scenario: Overtemperature cutoff for 3-phase AC induction motors in factory automation systems. IC Role / Device Role / Timing Role: Standalone thermal watchdog triggering hardware shutdown via CT pin when winding temperature exceeds 147°C. Use Value: Open-drain CT output drives relay driver directly; fault queue prevents nuisance trips during transient load surges. |
| Computer Power Supply Monitoring | Handheld Diagnostic Equipment |
Use Scenario: Hot-spot detection on VRM MOSFETs and bulk capacitors in server PSUs to prevent thermal runaway. IC Role / Device Role / Timing Role: Secondary thermal sensor feeding into PMBus-compliant controller; reads temperature every second via 1 SPS mode. Use Value: 7 µW shutdown current minimizes standby loss; wide −55°C to +150°C range covers full PSU operational envelope. |
Use Scenario: Battery and ambient temperature compensation in handheld multimeters and thermal imagers. IC Role / Device Role / Timing Role: Low-power temperature reference for ADC offset correction and battery health estimation. Use Value: 46 µA 1 SPS current extends single-charge runtime; small SOIC-N footprint fits compact front-end PCBs. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| MAX31855KASA+ | Thermocouple amplifier (K-type only); outputs linearized temperature over SPI; no onboard sensor | Requires external thermocouple; not a direct replacement for integrated sensing | Select only when thermocouple-based measurement is mandated and cold-junction compensation is needed |
| LMT70AYPWR | Analog output (ratiometric voltage); 0.15°C max accuracy; no digital interface or interrupts | Lacks SPI, programmable alerts, and 16-bit resolution - requires external ADC and firmware logic | Choose only for ultra-low-cost, low-precision analog signal chains without digital control requirements |
Compared with MAX31855KASA+ and LMT70AYPWR, the ADT7310TRZ-REEL7 provides fully integrated sensing, factory-calibrated digital output, dual programmable interrupts, and superior ±0.5°C accuracy - eliminating external components and firmware overhead for embedded thermal management.
Availability
ADT7310TRZ-REEL7 is available at Aetrix Electronics and suitable for industrial process control, medical equipment, and computer thermal monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for ADT7310TRZ-REEL7 includes scheduled delivery planning, volume procurement assistance, BOM continuity management, traceable sourcing, and lifecycle availability coordination for OEM customers, industrial embedded developers, connected-device designers, and electronics production programs.
Manufacturer
Analog Devices, Inc. is a global semiconductor leader specializing in high-performance analog, mixed-signal, and digital signal processing technologies for precision measurement and control.
The ADT7310TRZ-REEL7 belongs to Analog Devices' precision temperature sensor product line, engineered for applications demanding certified accuracy, robust interrupt functionality, and operation across extreme industrial and medical temperature ranges.
FAQ
What is the guaranteed temperature accuracy specification for ADT7310TRZ-REEL7 over its full operating range?
The ADT7310TRZ-REEL7 guarantees ±0.5°C accuracy from −40°C to +105°C at supply voltages of 2.7 V to 3.6 V. At the extended range of −55°C to +150°C, accuracy is ±0.7°C (2.7–3.6 V) or ±1.0°C (2.7–5.5 V). These values include lifetime drift and are validated per Analog Devices' Rev. A datasheet Table 1.
Does ADT7310TRZ-REEL7 require external calibration or linearity correction in the host system?
No. The ADT7310TRZ-REEL7 is factory-calibrated and requires no user-performed temperature calibration or linearity correction. Its band gap sensor and Σ-Δ ADC architecture deliver specified accuracy across −55°C to +150°C without software compensation - a key design advantage confirmed in the General Description and Features sections of the datasheet.
How does the ADT7310TRZ-REEL7 support low-power operation in battery-powered devices?
The ADT7310TRZ-REEL7 offers three power modes: normal (700 µW at 3.3 V), 1 SPS (150 µW), and shutdown (7 µW). In 1 SPS mode, it performs one 60 ms conversion per second and idles the rest of the time - reducing average current to 46 µA at 3.3 V. This enables multi-year operation on coin-cell batteries in handheld diagnostic tools.
Can ADT7310TRZ-REEL7 generate hardware interrupts without MCU intervention?
Yes. The ADT7310TRZ-REEL7 features two dedicated open-drain outputs - CT (critical overtemperature) and INT (programmable over/undertemperature) - that assert independently based on register-set thresholds. Both support comparator or interrupt mode and require only a pull-up resistor; no SPI polling or firmware polling is needed for basic thermal trip functions.
What is the default resolution and conversion time of ADT7310TRZ-REEL7 at power-up?
At power-up, the ADT7310TRZ-REEL7 defaults to 13-bit resolution (0.0625°C) and initiates a fast 6 ms first temperature conversion. Subsequent conversions in continuous mode take 240 ms. Resolution can be upgraded to 16-bit (0.0078°C) by setting Bit 7 in Configuration Register (0x01), as documented in the General Description and Registers sections.
ADT7310TRZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -55°C ~ 150°C
- Sensing Temperature - Remote:
- -
- Output Type:
- SPI
- Voltage - Supply:
- 2.7V ~ 5.5V
- Resolution:
- 15 b
- Features:
- One-Shot, Output Switch, Programmable Limit, Shutdown Mode
- Accuracy - Highest (Lowest):
- ±0.44°C (±1°C)
- Test Condition:
- -40°C ~ 105°C (-55°C ~ 150°C)
- Operating Temperature:
- -55°C ~ 150°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
ADT7310TRZ-REEL7 FAQ
1.How can I place an order for ADT7310TRZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADT7310TRZ-REEL7 on Aetrix. Our sales agent will provide a competitive quotation and guide you through the order confirmation once you accept the terms.
2.Are the price and stock information for ADT7310TRZ-REEL7 reliable?
The price and inventory of ADT7310TRZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADT7310TRZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADT7310TRZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADT7310TRZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADT7310TRZ-REEL7?
ADT7310TRZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADT7310TRZ-REEL7 order is processed, you will receive an email with the shipment details and tracking number.
Note: Tracking information may take up to 24 hours to appear. Express delivery typically takes 3–5 business days.
5.How can I obtain technical support or documentation for ADT7310TRZ-REEL7?
For technical support, including ADT7310TRZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADT7310TRZ-REEL7 requirements.
6.How does Aetrix verify that ADT7310TRZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADT7310TRZ-REEL7 products on Aetrix are procured from qualified distributors and authorized channels. Our dedicated quality assurance team conducts strict verification, including traceability checks and, if necessary, third-party testing. This ensures that ADT7310TRZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADT7310TRZ-REEL7?
All ADT7310TRZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADT7310TRZ-REEL7, returns or replacements are accepted under the following conditions:
1.Quantity discrepancies, incorrect items, or visible external defects (such as breakage or corrosion), acknowledged by Aetrix.
2.The issue is reported within 90 days of delivery.
3.The ADT7310TRZ-REEL7 part is unused and in its original packaging.
Return procedure for ADT7310TRZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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