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Analog Devices Inc. AD7414ART-1REEL7
- Part No.:
- AD7414ART-1REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- SOT-23-6
- Datasheet:
-
AD7414ART-1REEL7.pdf
- Description:
- IC SENSOR TEMP 10BIT SOT23-6
- Quantity:
- Payment:
- Shipping:
Inventory:4,807
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Product details
Overview
AD7414ART-1REEL7 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. It operates from −40°C to +125°C with 0.25°C resolution and 25 µs typical conversion time, used for thermal monitoring in hard disk drives and embedded computing systems.
For engineers reviewing the AD7414ART-1REEL7 datasheet, AD7414ART-1REEL7 pinout, AD7414ART-1REEL7 application, or AD7414ART-1REEL7 equivalent, key selection criteria include its ±0.5°C accuracy at +40°C, open-drain ALERT functionality, 3 µA shutdown current, 6-lead SOT-23 footprint, and support for eight I²C addresses via AS pin configuration.
Technical Context
The AD7414ART-1REEL7 integrates a bandgap temperature sensor and successive-approximation 10-bit ADC, delivering twos-complement temperature data with 0.25°C LSB resolution. Its internal oscillator enables automatic 800 ms update rate or on-demand one-shot conversion triggered via configuration register bit D2.
It implements SMBus-compliant alert signaling and supports three I²C address options per version (e.g., AD7414-1) by configuring the AS pin (float/GND/VDD), enabling up to eight unique addresses across four AD7414 variants - all while maintaining full compatibility with standard I²C master controllers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Accuracy | ±0.5°C typ at +40°C; ±2.0°C max over −40°C to +125°C - ensures reliable thermal trip point enforcement in industrial environments. |
| Resolution | 10-bit (0.25°C LSB) - provides fine-grained thermal feedback for closed-loop fan control or processor throttling. |
| Supply Range | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V logic domains without level-shifting. |
| Conversion Time | 25 µs typ - enables rapid response to thermal transients in real-time monitoring applications. |
| Shutdown Current | 3 µA max - extends battery life in portable equipment during idle periods. |
| I²C Address Options | Three selectable addresses per variant (e.g., AD7414-1) via AS pin - allows up to eight devices on one bus without address conflict. |
| Alert Output | Open-drain ALERT with software-configurable polarity - directly interfaces with microcontroller interrupt pins or SMBus alert handlers. |
Pinout & Package
AD7414ART-1REEL7 is housed in a 6-lead SOT-23 (RJ-6) package with 1.9 mm × 2.9 mm footprint and 0.95 mm height, optimized for space-constrained PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| AS | Address Select Input | Configures one of three I²C addresses (float/GND/VDD); requires 1 kΩ pull-up/down resistor for stable operation. |
| GND | Analog and Digital Ground | Common reference for sensor, ADC, and I²C interface; must be low-impedance connection to minimize noise coupling. |
| VDD | Positive Supply Voltage | Accepts 2.7 V–5.5 V; decoupling capacitor (0.1 µF) required near pin for stable ADC performance. |
| SDA | Serial Data I/O | Open-drain bidirectional I²C data line; requires external pull-up resistor (typically 4.7 kΩ). |
| ALERT | Overtemperature Indicator Output | Open-drain active-low/high (configurable) interrupt signal; sinks up to 4 mA when asserted. |
| SCL | Serial Clock Input | Input-only I²C clock line; accepts standard 100 kHz or 400 kHz bus speeds with defined timing margins. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip bandgap temperature sensor | Delivers ±0.5°C accuracy at +40°C without external calibration, reducing BOM cost and layout complexity. |
| Programmable THIGH/TLOW registers | Enables autonomous overtemperature detection and hysteresis control without host CPU intervention. |
| SMBus alert compatibility | Allows direct integration into systems using SMBus alert protocol (e.g., server management controllers) without glue logic. |
| One-shot conversion mode | Permits on-demand temperature reads with automatic power-down after completion - ideal for duty-cycled sensing. |
| Power-down mode with wake-on-one-shot | Maintains 3 µA quiescent current while retaining ability to initiate conversion via I²C write - optimal for energy-sensitive designs. |
Applications
| Hard Disk Drive Thermal Protection | Embedded PC Fan Control |
|---|---|
|
Use Scenario: Monitors spindle motor and controller IC temperature in 2.5″/3.5″ HDDs to prevent thermal runaway during sustained writes. IC Role / Device Role / Timing Role: Standalone temperature sensor with ALERT-driven interrupt; triggers firmware-initiated spin-down or speed reduction within 25 µs of threshold breach. Use Value: Prevents mechanical failure and data corruption by enforcing precise thermal limits before critical junction temperatures are reached. |
Use Scenario: Measures CPU voltage regulator and chipset die temperature in fanless or low-noise embedded PCs. IC Role / Device Role / Timing Role: I²C-connected thermal monitor feeding real-time data to system management controller for PWM fan speed adjustment. Use Value: Enables dynamic thermal management with 0.25°C resolution, improving acoustic performance and component longevity. |
| Industrial PLC Module Monitoring | Network Switch ASIC Thermal Guarding |
|
Use Scenario: Tracks ambient and board-level temperature inside DIN-rail mounted programmable logic controllers operating in harsh factory environments. IC Role / Device Role / Timing Role: Local thermal watchdog with configurable THIGH/TLOW registers; asserts ALERT to PLC main processor upon out-of-spec condition. Use Value: Provides fail-safe thermal supervision independent of host firmware, meeting IEC 61131-2 functional safety requirements. |
Use Scenario: Monitors multi-core switching ASIC temperature in Layer 3 Ethernet switches to prevent packet loss during traffic surges. IC Role / Device Role / Timing Role: SMBus-alert-capable sensor interfacing directly with baseboard management controller (BMC) for hardware-level thermal throttling. Use Value: Enables sub-100 ms thermal response without software polling, preserving switch throughput under thermal stress. |
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), no ALERT pin, fixed I²C address (0x48), −55°C to +125°C range. | Lacks programmable thresholds and interrupt output; suitable only for basic read-only monitoring. | Select when cost sensitivity outweighs need for autonomous thermal alerting and fine resolution. |
| MAX31820MUA+ | 12-bit resolution (0.0625°C), 1-Wire interface, ±0.5°C accuracy, −55°C to +125°C, no ALERT pin. | Requires single-wire bus instead of I²C; lacks hardware interrupt capability and threshold registers. | Choose for systems already using 1-Wire infrastructure and where higher resolution justifies interface change. |
Compared with LM75BIMM/NOPB and MAX31820MUA+, the AD7414ART-1REEL7 uniquely combines ±0.5°C accuracy, 10-bit resolution, programmable ALERT with polarity control, and SMBus alert compatibility - making it the only option among the three that supports autonomous thermal event handling in I²C-based embedded systems.
Availability
AD7414ART-1REEL7 is available at Aetrix Electronics and suitable for hard disk drive thermal protection, embedded PC fan control, industrial PLC module monitoring, and network switch ASIC thermal guarding requiring stable component supply and long-term lifecycle assurance.
Supply support for AD7414ART-1REEL7 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 since 1965.
The AD7414ART-1REEL7 belongs to Analog Devices' precision temperature sensor product line, engineered specifically for embedded thermal management in space-constrained, low-power systems demanding high accuracy and intelligent alerting.
FAQ
What is the operating temperature range of the AD7414ART-1REEL7?
The AD7414ART-1REEL7 operates from −40°C to +125°C, supporting industrial and computing applications where wide ambient and junction temperature excursions occur. Its A-grade specification guarantees ±2.0°C maximum accuracy across this full range at 3 V supply, with ±0.5°C typical accuracy at +40°C - verified in 100% production testing.
Does the AD7414ART-1REEL7 support I²C fast-mode operation?
Yes, the AD7414ART-1REEL7 supports I²C fast-mode (400 kHz) operation with guaranteed timing margins: minimum serial clock period of 2.5 µs, data setup time of 50 ns, and SDA/SCL fall time ≤90 ns. These parameters are validated with input filters enabled to meet EMC requirements while maintaining robust communication.
How does the ALERT output function in the AD7414ART-1REEL7?
The ALERT output in the AD7414ART-1REEL7 is an open-drain signal that activates 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 serve as either a microcontroller interrupt or SMBus alert - a feature absent in the pin-compatible AD7415 variant.
Can the AD7414ART-1REEL7 operate in power-down mode and still perform temperature conversions?
Yes, the AD7414ART-1REEL7 supports wake-on-one-shot operation: when in shutdown mode (PD = 1), writing '1' to the ONE SHOT bit (D2) in the configuration register powers up the device, performs a single 25 µs conversion, loads the result into the temperature register, and returns to shutdown - consuming only 3 µA between measurements.
What package type and lead count does the AD7414ART-1REEL7 use?
The AD7414ART-1REEL7 uses a 6-lead SOT-23 (RJ-6) package measuring 1.9 mm × 2.9 mm × 0.95 mm, with gull-wing leads compatible with standard reflow soldering profiles including Pb-free peak temperature of 260°C for 20–40 seconds. This matches the AD7414-1 variant specified in the Rev. H datasheet.
AD7414ART-1REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- SOT-23-6
- Packaging:
- Cut Tape (CT)
- 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:
- SOT-23-6
AD7414ART-1REEL7 FAQ
1.How can I place an order for AD7414ART-1REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7414ART-1REEL7 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 AD7414ART-1REEL7 reliable?
The price and inventory of AD7414ART-1REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7414ART-1REEL7 is usually 5 days.
3.What payment methods are accepted for AD7414ART-1REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7414ART-1REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7414ART-1REEL7?
AD7414ART-1REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7414ART-1REEL7 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 AD7414ART-1REEL7?
For technical support, including AD7414ART-1REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7414ART-1REEL7 requirements.
6.How does Aetrix verify that AD7414ART-1REEL7 is sourced from the original manufacturer or authorized distributors?
All AD7414ART-1REEL7 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 AD7414ART-1REEL7 meets industry standards.
7.What is the process for return or replacement of AD7414ART-1REEL7?
All AD7414ART-1REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD7414ART-1REEL7, 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 AD7414ART-1REEL7 part is unused and in its original packaging.
Return procedure for AD7414ART-1REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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