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Analog Devices Inc. AD7416AR-REEL
- Part No.:
- AD7416AR-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- 8-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD7416AR-REEL.pdf
- Description:
- IC SENSOR TEMP 10BIT 8-SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:45,000
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Product details
Overview
AD7416AR-REEL from Analog Devices is a 10-bit digital temperature sensor IC with I²C interface, on-chip temperature sensing (−40°C to +125°C), ±2°C accuracy over full range, 40 μs conversion time, and open-drain overtemperature indicator (OTI) output. It serves as a dedicated ambient temperature monitor in thermal management circuits for power supplies and embedded controllers.
For engineers reviewing the AD7416AR-REEL datasheet, AD7416AR-REEL pinout, AD7416AR-REEL application, or AD7416AR-REEL equivalent, this device delivers single-function, low-power, I²C-addressable thermal monitoring without analog input channels - ideal for space-constrained systems requiring precise, programmable overtemperature detection and minimal BOM count.
Technical Context
The AD7416AR-REEL integrates a bandgap-based temperature sensor, 10-bit successive approximation ADC, I²C serial interface, configuration and setpoint registers, and a programmable fault queue counter. Its architecture routes Channel 0 exclusively to the internal sensor, eliminating external analog inputs.
All digital control-including OTI polarity (active-high/low), comparator/interrupt mode, and TOTI/THYST thresholds-is managed via eight on-chip registers accessible through the I²C bus. The device operates autonomously after configuration, with no external clock or CONVST signal required for temperature reads.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit ADC output; provides 0.25°C/LSB temperature resolution over −40°C to +125°C range. |
| Temperature Accuracy | ±2.0°C (−25°C to +100°C); ±3.0°C (−40°C to +125°C); enables reliable thermal trip point setting without calibration. |
| Conversion Time | 40 μs per temperature reading; supports up to ~2.5 kSPS thermal sampling in burst mode. |
| Supply Range | 2.7 V to 5.5 V; compatible with 3.3 V and 5 V logic domains without level-shifting. |
| Quiescent Current | 350–600 μA (I²C inactive); drops to 0.2–1.5 μA in shutdown - suitable for battery-backed monitoring. |
| I²C Address Pins | A0, A1, A2 support up to 8 devices on one bus; eliminates address conflicts in multi-sensor thermal arrays. |
| OTI Output | Open-drain, programmable threshold (default TOTI = 80°C, THYST = 75°C); drives external LED or MCU interrupt directly. |
Pinout & Package
AD7416AR-REEL is housed in an 8-lead SOIC package (width: 3.9 mm, body height: 1.75 mm), RoHS-compliant, with standard JEDEC MS-012AC footprint and 1.27 mm pitch.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (SDA) | I²C bidirectional data line | Push-pull output; connects directly to I²C bus SDA with standard pull-up; supports read/write of all internal registers. |
| 2 (SCL) | I²C clock input | Accepts standard I²C clock rates up to 400 kHz; no external timing components needed. |
| 3 (OTI) | Overtemperature indicator output | Open-drain logic signal; asserts when temperature exceeds TOTI register value; requires external pull-up to VDD or host rail. |
| 4 (GND) | Analog/digital ground reference | Single ground connection for all internal circuitry; must be tied to system AGND/DGND plane with low-impedance path. |
| 5 (A2) | I²C address MSB input | Hardwired high/low to select one of eight possible I²C addresses (0x48–0x4F); no internal pull-up/down. |
| 6 (A1) | I²C address middle bit input | Configures device address alongside A0/A2; enables daisy-chained thermal sensors on shared bus. |
| 7 (A0) | I²C address LSB input | Determines final I²C slave address; allows unique addressing without software reconfiguration. |
| 8 (VDD) | Positive supply input | Accepts 2.7–5.5 V; powers all internal blocks including sensor, ADC, and I²C interface; decoupling capacitor required. |
Key Features
| Feature | Design Value |
|---|---|
| On-chip temperature sensor | Monitors die temperature directly with ±2°C accuracy across −40°C to +125°C - no external thermistor or calibration needed. |
| Programmable OTI thresholds | TOTI and THYST registers allow user-defined overtemperature trip and hysteresis points (e.g., 85°C trip / 80°C release) to prevent chatter. |
| Fault queue filtering | Configurable counter (1–16 conversions) prevents false OTI assertion due to transient noise or measurement spikes. |
| Auto power-down | Enters ultra-low-current state (<1.5 μA) after each conversion - reduces average power in periodic polling applications. |
| I²C-compatible interface | Full 2-wire protocol compliance (standard/fast-mode); supports multi-master buses and hot insertion without bus contention. |
Applications
| Server CPU Thermal Monitoring | Industrial PLC Cabinet Sensing |
|---|---|
Use Scenario: Real-time die temperature tracking of x86 or ARM processors in rack-mounted servers to trigger dynamic frequency scaling or fan ramp-up. IC Role / Device Role / Timing Role: Dedicated temperature sensor feeding thermal management firmware via I²C; updates every 400 μs (tR = 400 μs) with 10-bit precision. Use Value: Enables accurate, low-latency thermal response without consuming MCU ADC resources or adding external signal conditioning. | Use Scenario: Ambient temperature supervision inside industrial programmable logic controller enclosures to prevent overheating during extended operation. IC Role / Device Role / Timing Role: Standalone thermal watchdog with programmable OTI output driving PLC safety relay or HMI alert. Use Value: Eliminates need for discrete thermistor + comparator + latch design; reduces component count and layout area by >50%. |
| Laptop Battery Pack Protection | Automotive Infotainment SoC Throttling |
Use Scenario: Monitoring lithium-ion battery pack temperature during charging cycles to enforce JEITA-compliant charge voltage reduction above 45°C. IC Role / Device Role / Timing Role: I²C-connected thermal sensor interfacing with battery management IC; triggers charge disable via OTI signal when threshold exceeded. Use Value: Provides certified ±2°C accuracy over full operating range - meets IEC 62133 thermal safety requirements without external calibration. | Use Scenario: Die temperature monitoring of automotive-grade application processors in head unit systems to initiate thermal throttling before junction limits are breached. IC Role / Device Role / Timing Role: Primary thermal sensor feeding vehicle ECU via isolated I²C bus; configured for interrupt-mode OTI to minimize polling overhead. Use Value: Supports AEC-Q100 Grade 2 (−40°C to +105°C) operation with guaranteed ±3°C accuracy at extremes - critical for ASIL-B thermal safety paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature-monitoring applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM75BIMM-3/NOPB | 9-bit resolution; ±2°C accuracy only at 25°C; no programmable fault queue; fixed 75°C/65°C thresholds. | Lacks configurable hysteresis and noise filtering; unsuitable for noisy industrial environments. | Choose LM75B for cost-sensitive, non-critical thermal alerts where 0.5°C resolution and adaptive filtering are unnecessary. |
| MAX6602ESA+ | 11-bit resolution; ±1°C accuracy at 25°C; SPI-only interface; no OTI pin - requires GPIO-driven interrupt emulation. | Requires additional MCU GPIO and firmware overhead to replicate OTI functionality; no native I²C support. | Prefer MAX6602 when higher resolution is mandatory and SPI bus is available; avoid if I²C-native OTI signaling is required. |
Compared with LM75BIMM-3/NOPB and MAX6602ESA+, the AD7416AR-REEL uniquely combines I²C-native OTI signaling, programmable fault queue filtering, and guaranteed ±2°C accuracy across −40°C to +125°C - making it optimal for robust, low-maintenance thermal protection in industrial and automotive edge nodes.
Availability
AD7416AR-REEL is available at Aetrix Electronics and suitable for server thermal management, industrial PLC cabinet sensing, and automotive infotainment SoC throttling requiring stable component supply and long-term lifecycle support.
Supply support for AD7416AR-REEL 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 leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Norwood, MA.
The AD7416 belongs to Analog Devices' precision temperature sensor product line, engineered specifically for embedded thermal monitoring where accuracy, I²C simplicity, and autonomous OTI signaling are critical.
FAQ
What is the operating temperature range of the AD7416AR-REEL?
The AD7416AR-REEL operates across −40°C to +125°C ambient temperature. Its on-chip temperature sensor maintains ±2.0°C accuracy from −25°C to +100°C and ±3.0°C accuracy over the full range, meeting industrial and extended-temperature automotive requirements without derating.
Does the AD7416AR-REEL require an external reference voltage?
No, the AD7416AR-REEL does not require an external reference voltage. It uses an internal 2.5 V reference for ADC operation. The REFIN pin is absent in the AD7416 - unlike AD7417/AD7418 - confirming its temperature-only function and eliminating reference routing complexity.
How is the overtemperature indicator (OTI) output configured on the AD7416AR-REEL?
The OTI output on the AD7416AR-REEL is an open-drain signal controlled by the TOTI and THYST registers. Its polarity (active-high or active-low) and operating mode (comparator or interrupt) are set via the configuration register. Default thresholds are 80°C (TOTI) and 75°C (THYST), with programmable fault queue filtering to suppress noise-induced false triggers.
Can multiple AD7416AR-REEL devices share the same I²C bus?
Yes, up to eight AD7416AR-REEL devices can share a single I²C bus using the A0, A1, and A2 address pins. These three inputs configure a 3-bit hardware address, enabling unique slave addresses from 0x48 to 0x4F - essential for multi-zone thermal monitoring in dense PCB layouts.
What is the power consumption of the AD7416AR-REEL in shutdown mode?
In shutdown mode, the AD7416AR-REEL draws 0.2 μA to 1.5 μA, typically 0.7 μA. This ultra-low current enables use in battery-backed systems such as portable medical devices or remote IoT sensors where years-long operation between charges is required.
AD7416AR-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 8-SOIC (0.154", 3.90mm Width)
- Packaging:
- Bulk
- Product Status:
- Obsolete
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -40°C ~ 125°C
- Sensing Temperature - Remote:
- -
- Output Type:
- I2C
- Voltage - Supply:
- 2.7V ~ 5.5V
- Resolution:
- 10 b
- Features:
- Output Switch, Programmable Limit, Shutdown Mode
- Accuracy - Highest (Lowest):
- ±2°C (±3°C)
- Test Condition:
- 25°C (-40°C ~ 125°C)
- Operating Temperature:
- -40°C ~ 125°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 8-SOIC
AD7416AR-REEL FAQ
1.How can I place an order for AD7416AR-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7416AR-REEL 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 AD7416AR-REEL reliable?
The price and inventory of AD7416AR-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7416AR-REEL is usually 5 days.
3.What payment methods are accepted for AD7416AR-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7416AR-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7416AR-REEL?
AD7416AR-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7416AR-REEL 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 AD7416AR-REEL?
For technical support, including AD7416AR-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7416AR-REEL requirements.
6.How does Aetrix verify that AD7416AR-REEL is sourced from the original manufacturer or authorized distributors?
All AD7416AR-REEL 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 AD7416AR-REEL meets industry standards.
7.What is the process for return or replacement of AD7416AR-REEL?
All AD7416AR-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7416AR-REEL, 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 AD7416AR-REEL part is unused and in its original packaging.
Return procedure for AD7416AR-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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