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Analog Devices Inc. AD7414ARMZ-1
- Part No.:
- AD7414ARMZ-1
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Datasheet:
-
AD7414ARMZ-1.pdf
- Description:
- IC SENSOR TEMP 10BIT DGTL 8MSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,649
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Product details
Overview
AD7414ARMZ-1 from Analog Devices is a ±0.5°C accurate, 10-bit digital temperature sensor in a 6-lead SOT-23 package, featuring SMBus/I²C-compatible serial interface, overtemperature alert (ALERT) output, and programmable high/low temperature thresholds for thermal monitoring in embedded systems.
For engineers reviewing the AD7414ARMZ-1 datasheet, AD7414ARMZ-1 pinout, AD7414ARMZ-1 application, or AD7414ARMZ-1 equivalent, this page delivers verified technical context, real-world use cases, validated alternatives, and supply assurance for industrial, computing, and consumer electronics design-in.
Technical Context
The AD7414ARMZ-1 integrates a bandgap temperature sensor and successive-approximation ADC to deliver 10-bit temperature readings with 0.25°C resolution across −40°C to +125°C. Its internal oscillator triggers automatic conversions every 800 ms, while one-shot mode enables on-demand measurement in 25 µs.
It implements an SMBus/I²C slave interface with pin-selectable addressing via the AS input, supporting eight I²C addresses across four AD7414 variants. The ALERT output is open-drain, software-configurable for active-high/active-low polarity, and tied to THIGH/TLOW register thresholds for overtemperature detection.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±0.5°C typical at +40°C; ±2.0°C max over full −40°C to +125°C range |
| Resolution | 10-bit output = 0.25°C per LSB; supports precise thermal thresholding |
| Supply Range | 2.7 V to 5.5 V; compatible with 3.3 V and 5 V logic domains |
| Conversion Time | 25 µs typical; enables rapid thermal response without CPU polling overhead |
| Power-Down Current | 3 µA max; extends battery life in portable and low-power monitoring systems |
| I²C Address Options | Three selectable addresses (float/GND/VDD on AS pin); avoids bus conflicts in multi-sensor designs |
| Alert Output | Open-drain ALERT pin with programmable polarity; serves as hardware interrupt for thermal events |
Pinout & Package
AD7414ARMZ-1 is housed in a 6-lead SOT-23 (RJ-6) package with 190.4°C/W junction-to-ambient thermal resistance, optimized for space-constrained PCB layouts and reflow soldering per JEDEC J-STD-020.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AS | Address Select Input | Configures one of three I²C addresses (float/GND/VDD); enables up to 8 devices on same bus |
| GND | Analog & Digital Ground | Common reference for sensor, ADC, and I²C interface; requires low-impedance connection |
| VDD | Positive Supply | 2.7 V–5.5 V power input; powers internal bandgap sensor, ADC, and logic |
| SDA | Serial Data I/O | Open-drain bidirectional I²C/SMBus data line; requires external pull-up resistor |
| ALERT | Overtemperature Indicator | Open-drain output asserted when temperature exceeds THIGH; configurable polarity and reset behavior |
| SCL | Serial Clock Input | Master-generated clock for I²C communication; supports standard/fast-mode timing |
Key Features
| Feature | Design Value |
|---|---|
| On-chip bandgap temperature sensor | Delivers ±0.5°C accuracy at +40°C without external calibration components |
| Programmable thermal thresholds | THIGH and TLOW registers enable autonomous over/under-temperature detection without host intervention |
| One-shot conversion mode | Allows on-demand measurement with 25 µs latency and automatic return to 3 µA shutdown |
| SMBus alert compatibility | ALERT pin functions as SMBALERT signal, enabling integration into system management controllers |
| Filterable I²C inputs | Configurable SDA/SCL input filters improve noise immunity in electrically noisy environments |
Applications
| Hard Disk Drive Thermal Monitoring | Industrial PLC Cabinet Sensing |
|---|---|
Use Scenario: Real-time temperature tracking of HDD spindle motor and controller ICs to prevent thermal throttling or failure. IC Role / Device Role / Timing Role: Primary ambient temperature sensor feeding thermal management firmware; ALERT triggers immediate spin-down or fan ramp-up. Use Value: Enables predictive thermal control using ±0.5°C accuracy and 25 µs conversion, reducing mechanical wear and extending drive lifespan. | Use Scenario: Continuous cabinet temperature supervision in programmable logic controllers operating in unconditioned factory environments. IC Role / Device Role / Timing Role: Standalone thermal watchdog with autonomous ALERT assertion; interfaces directly to PLC's microcontroller I²C port. Use Value: Eliminates need for external comparator circuitry; programmable THIGH/TLOW registers support region-specific trip points across −40°C to +125°C range. |
| Smartphone Battery Protection | Office Equipment Power Supply Monitoring |
Use Scenario: Monitoring Li-ion battery pack temperature during fast charging cycles to enforce JEITA-compliant charge profiles. IC Role / Device Role / Timing Role: Dedicated battery thermistor replacement; ALERT signals host processor to suspend charging if >45°C threshold exceeded. Use Value: Achieves ±0.5°C accuracy critical for safe fast-charge compliance; 3 µA shutdown current minimizes parasitic drain during standby. | Use Scenario: Detecting abnormal heating in AC-DC power supplies inside printers and multifunction copiers. IC Role / Device Role / Timing Role: Secondary thermal sensor placed near MOSFETs and transformers; ALERT drives system shutdown via microcontroller GPIO. Use Value: Provides fail-safe thermal protection independent of main controller firmware; open-drain ALERT ensures compatibility with 3.3 V or 5 V logic rails. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar digital temperature sensor applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM75BIMM/NOPB | 9-bit resolution (0.5°C step), no ALERT polarity control, fixed I²C address (0x48) | Lacks programmable THIGH/TLOW registers and one-shot mode; suitable only for basic threshold alerts | Select when cost sensitivity outweighs resolution and configurability needs |
| MAX31820MUA+ | 12-bit resolution, 1-Wire interface, ±0.5°C accuracy, integrated EEPROM for calibration | Requires single-wire bus instead of I²C; higher precision but incompatible interface architecture | Select when board-level wiring reduction and higher resolution justify interface redesign |
Compared with LM75BIMM/NOPB and MAX31820MUA+, the AD7414ARMZ-1 uniquely balances I²C compatibility, 10-bit resolution, autonomous ALERT functionality, and ultra-low 3 µA shutdown current-making it optimal for space- and power-constrained thermal monitoring where precise, programmable thresholds are required.
Availability
AD7414ARMZ-1 is available at Aetrix Electronics and suitable for hard disk drives, industrial PLCs, smartphones, and office equipment requiring stable component supply, long-term lifecycle support, and guaranteed traceable sourcing.
Supply support for AD7414ARMZ-1 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 is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, serving industrial, automotive, communications, and healthcare markets.
The AD7414ARMZ-1 belongs to Analog Devices' precision temperature sensor product line, designed specifically for embedded thermal monitoring applications demanding accuracy, low power, and I²C/SMBus interoperability in compact form factors.
FAQ
What is the operating temperature range of the AD7414ARMZ-1?
The AD7414ARMZ-1 operates across −40°C to +125°C, meeting industrial and extended commercial requirements. Its ±0.5°C typical accuracy at +40°C and ±2.0°C maximum error over the full range make it suitable for harsh-environment thermal sensing. This range is validated per A-grade specifications in the official Rev. H datasheet.
Does the AD7414ARMZ-1 support I²C fast-mode speeds?
Yes, the AD7414ARMZ-1 supports I²C fast-mode operation up to 400 kHz, with guaranteed timing parameters including t1 ≥ 2.5 µs clock period and t2 ≥ 50 ns setup time. Input filters can be enabled or disabled via the configuration register to balance noise immunity and speed-critical for reliable communication in noisy industrial settings.
How does the ALERT output function in the AD7414ARMZ-1?
The ALERT output in the AD7414ARMZ-1 is an open-drain pin that asserts when the measured temperature exceeds the THIGH register value. Its polarity (active-high or active-low) is software-configurable via bit D4 of the configuration register, and it can be reset either by writing to the ALERT reset bit or when temperature falls below TLOW. This enables flexible integration as an interrupt or SMBus alert signal.
Can the AD7414ARMZ-1 perform temperature conversions while in shutdown mode?
Yes-the AD7414ARMZ-1 supports one-shot conversion from shutdown mode. Writing '1' to the ONE SHOT bit (D2) in the configuration register wakes the device, performs a single 25 µs conversion, loads the result into the temperature register, and returns to 3 µA shutdown-enabling ultra-low-power periodic sampling without continuous power draw.
What package type and lead count does the AD7414ARMZ-1 use?
The AD7414ARMZ-1 uses a 6-lead SOT-23 (RJ-6) package, confirmed in the Pin Configurations section of the Rev. H datasheet (Figure 3). This compact footprint measures 2.9 mm × 1.6 mm × 1.1 mm and supports standard IR reflow per JEDEC J-STD-020, making it ideal for dense PCB layouts in portable and embedded systems.
AD7414ARMZ-1 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-TSSOP, 8-MSOP (0.118", 3.00mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -40°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- I2C/SMBus
- Voltage - Supply:
- 2.7V ~ 5.5V
- Resolution:
- 10 b
- Features:
- One-Shot, Output Switch, Programmable Limit, Shutdown Mode, Sleep Mode
- Accuracy - Highest (Lowest):
- ±1.87°C (±3°C)
- Test Condition:
- 40°C (-40°C ~ 85°C)
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-MSOP
AD7414ARMZ-1 FAQ
1.How can I place an order for AD7414ARMZ-1 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7414ARMZ-1 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 AD7414ARMZ-1 reliable?
The price and inventory of AD7414ARMZ-1 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7414ARMZ-1 is usually 5 days.
3.What payment methods are accepted for AD7414ARMZ-1?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7414ARMZ-1 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7414ARMZ-1?
AD7414ARMZ-1 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7414ARMZ-1 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 AD7414ARMZ-1?
For technical support, including AD7414ARMZ-1 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7414ARMZ-1 requirements.
6.How does Aetrix verify that AD7414ARMZ-1 is sourced from the original manufacturer or authorized distributors?
All AD7414ARMZ-1 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 AD7414ARMZ-1 meets industry standards.
7.What is the process for return or replacement of AD7414ARMZ-1?
All AD7414ARMZ-1 units undergo pre-shipment inspection (PSI). If there is an issue with AD7414ARMZ-1, 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 AD7414ARMZ-1 part is unused and in its original packaging.
Return procedure for AD7414ARMZ-1:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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