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Analog Devices Inc. AD7417ARU-REEL
- Part No.:
- AD7417ARU-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- 16-TSSOP (0.173", 4.40mm Width)
- Datasheet:
-
AD7417ARU-REEL.pdf
- Description:
- SENSOR DIGITAL -40C-125C 16TSSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,370
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Product details
Overview
AD7417ARU-REEL from Analog Devices is a 10-bit, 4-channel analog-to-digital converter with integrated temperature sensor, I²C interface, and on-chip 2.5 V reference-designed for ambient temperature monitoring and multichannel voltage sensing in industrial control and PC thermal management. It delivers ±1°C accuracy at 25°C, 15 μs conversion time on analog channels, and operates from 2.7 V to 5.5 V.
For engineers reviewing the AD7417ARU-REEL datasheet, AD7417ARU-REEL pinout, AD7417ARU-REEL application, or AD7417ARU-REEL equivalent, key selection criteria include its 4-channel single-ended ADC architecture, programmable overtemperature indicator (OTI), fault queue counter for noise immunity, and TSSOP-16 package compatibility with space-constrained embedded systems.
Technical Context
The AD7417ARU-REEL integrates a 10-bit successive approximation ADC, 5-channel multiplexer (including Channel 0 for the on-die temperature sensor), track-and-hold amplifier with 400 ns acquisition time, and I²C-compatible serial interface with user-selectable address (A0–A2). Its internal 2.5 V reference enables self-contained operation without external precision references.
Conversion is initiated either by CONVST pulse (edge-triggered) or automatically after each I²C read/write, with dedicated 30 μs timing for temperature channel and 15 μs for analog inputs. The OTI output is open-drain, configurable as comparator or interrupt mode, and latched only after programmable fault queue threshold (1–4 consecutive out-of-limit readings) is met.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - Provides 1024 discrete steps across full-scale input range, enabling 0.25°C temperature resolution (1/4°C/LSB). |
| Temperature Accuracy | ±1°C at 25°C, ±2°C over −40°C to +125°C range - Enables reliable ambient thermal monitoring without external calibration. |
| Analog Channel Count | 4 single-ended inputs (AIN1–AIN4) - Supports simultaneous voltage monitoring of multiple system nodes (e.g., power rails, sensors). |
| Conversion Time | 15 μs (analog channels), 30 μs (temperature channel) - Enables up to ~67 kSPS sampling rate for fast-response thermal feedback loops. |
| Supply Voltage Range | 2.7 V to 5.5 V - Compatible with both 3.3 V and 5 V logic domains, simplifying integration into mixed-voltage systems. |
| I²C Address Flexibility | 3 LSBs (A0/A1/A2) programmable - Allows up to eight AD7417ARU-REEL devices on one bus, ideal for multi-zone thermal monitoring. |
| Power Consumption | 600 μA typical active, 1.5 μA shutdown - Reduces quiescent current in battery-powered or energy-sensitive applications. |
Pinout & Package
AD7417ARU-REEL is housed in a 16-lead thin shrink small outline package (TSSOP), 4.4 mm × 5.0 mm body, 0.65 mm pitch, with exposed pad for thermal enhancement. Pin 1 is marked via dot or bevel; pin numbering follows standard TSSOP convention (counterclockwise from top-left corner).
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1, 16 | NC | No connection - Must remain unconnected; floating or tied pins may cause ESD or noise coupling. |
| 2 | SDA | I²C bidirectional data line - Push-pull output supports standard/fast-mode I²C; requires external pull-up resistor (typically 2.2–10 kΩ). |
| 3 | SCL | I²C clock input - Synchronizes all serial transactions; must be driven by master with clean edge rates per I²C spec. |
| 4 | OTI | Open-drain overtemperature indicator - Active-low signal asserts when temperature exceeds TOTI register value; requires external pull-up. |
| 5 | REFIN | Reference input - Accepts external 2.5 V source; tie to GND to enable internal 2.5 V reference (±25 mV error). |
| 6 | GND | Analog/digital ground reference - Shared return for ADC, comparator, and digital logic; must be low-impedance and star-connected. |
| 7–10 | AIN1–AIN4 | Single-ended analog inputs - Each accepts 0 V to VREF signals; unused inputs must be tied to GND or valid voltage to prevent noise pickup. |
| 11–13 | A2, A1, A0 | I²C address select inputs - Set device address bits (A2A1A0); determine position within 8-device bus topology (0x48–0x4F default). |
| 14 | VDD | Positive supply - Powers entire IC; requires local 0.1 μF ceramic decoupling capacitor placed <1 mm from pin. |
| 15 | CONVST | Convert start trigger - Rising edge powers up circuitry; falling edge (if ≥4 μs wide) initiates conversion and places track-and-hold in hold mode. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensor | On-die thermal diode with ±1°C accuracy at 25°C enables direct PCB temperature measurement without external components. |
| Programmable fault queue | Configurable 1–4 consecutive out-of-limit samples required before OTI assertion prevents false triggers in electrically noisy environments. |
| Auto power-down | Automatic shutdown after conversion reduces average current to sub-microamp level during idle periods, extending battery life. |
| Internal 2.5 V reference | Stable on-chip reference (80 ppm/°C TC) eliminates need for external precision reference, reducing BOM count and layout area. |
| Channel multiplexing | 5-channel mux (4 analog + 1 temp) allows flexible sequencing - e.g., cycle through rail voltages and ambient temp every 100 ms. |
Applications
| Industrial Process Monitoring | PC Thermal Management |
|---|---|
Use Scenario: Real-time monitoring of motor drive temperatures, power supply rails, and ambient cabinet conditions in factory automation PLCs. IC Role / Device Role / Timing Role: ADC + temperature sensor subsystem providing synchronized 10-bit digitization of four analog points plus local die temperature every 50–200 ms. Use Value: Enables closed-loop fan speed control and overtemperature shutdown with ±1°C resolution, meeting IEC 61000-6-2 immunity requirements. |
Use Scenario: Dynamic thermal throttling in desktop motherboards using CPU/GPU VRM rail voltages and heatsink proximity sensing. IC Role / Device Role / Timing Role: System monitor IC interfacing directly to BIOS/firmware via SMBus (I²C subset), delivering calibrated temperature and voltage data at 10–100 Hz. Use Value: Eliminates need for discrete thermistors and op-amps while supporting Intel DTS-compliant thermal event reporting. |
| Automotive Cabin Control | Battery Charging Systems |
Use Scenario: HVAC zone temperature sensing and 12 V/24 V rail monitoring in automotive infotainment and climate control modules. IC Role / Device Role / Timing Role: Dual-role sensor hub acquiring cabin air temp (via Channel 0) and auxiliary supply voltages (Channels 1–4) under AEC-Q200-relevant operating conditions. Use Value: Meets −40°C to +125°C extended temperature range requirement with no external compensation, reducing qualification effort. |
Use Scenario: Li-ion battery pack supervision in portable medical devices, measuring cell voltage gradients and thermistor-based temperature gradients across series cells. IC Role / Device Role / Timing Role: Precision analog front-end digitizing up to four cell voltages and one thermal sense point per module, synchronized to charging algorithm timing. Use Value: Achieves <±0.5% gain error match between channels, ensuring consistent voltage balancing decisions across parallel ADC paths. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar multichannel temperature-sensing ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7418ARZ | Single-channel variant (1 analog input + temp sensor) in 8-lead SOIC; lacks AIN2–AIN4 and NC pins; identical core specs (10-bit, 15/30 μs, I²C). | Used where only one external voltage needs monitoring alongside temperature - e.g., simple microcontroller add-on sensor. | Select AD7418ARZ for cost- and space-constrained designs requiring only one analog input; AD7417ARU-REEL remains optimal for 4-input systems. |
| MAX1272EEE+ | 12-bit, 4-channel SAR ADC with SPI interface (not I²C); no integrated temperature sensor; requires external reference and clock; wider supply (2.7–5.25 V). | Preferred in high-precision data acquisition where 12-bit resolution outweighs missing on-die thermal sensing and I²C simplicity. | Choose MAX1272EEE+ when resolution >10-bit is mandatory and SPI infrastructure already exists; AD7417ARU-REEL offers faster integration where thermal awareness is critical. |
Compared with AD7418ARZ, AD7417ARU-REEL adds three analog inputs and TSSOP packaging for higher density, while versus MAX1272EEE+, it trades 2-bit resolution for integrated temperature sensing, I²C compatibility, and lower system-level component count.
Availability
AD7417ARU-REEL is available at Aetrix Electronics and suitable for industrial process control, PC thermal management, and automotive cabin monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7417ARU-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, serving industrial, automotive, communications, and healthcare markets since 1965.
The AD7417 belongs to Analog Devices' precision data acquisition portfolio, engineered specifically for embedded thermal-aware systems needing compact, self-contained analog sensing with minimal external components.
FAQ
What is the operating temperature range of the AD7417ARU-REEL?
The AD7417ARU-REEL is rated for operation from −40°C to +125°C (A Version), with temperature measurement accuracy of ±1°C at 25°C and ±2°C across the full range. This specification applies to the AD7417ARU-REEL in TSSOP package under VDD = 2.7 V to 5.5 V and REFIN = 2.5 V conditions per Rev. J datasheet Table 1.
Does the AD7417ARU-REEL require an external reference voltage?
No, the AD7417ARU-REEL includes an internal 2.5 V reference with ±25 mV error and 80 ppm/°C temperature coefficient. To enable it, tie the REFIN pin to GND. An external 2.5 V reference may be applied to REFIN if higher precision is needed, which disables the internal reference automatically.
How many devices can share the same I²C bus with the AD7417ARU-REEL?
Up to eight AD7417ARU-REEL devices can be connected to a single I²C bus using the A0, A1, and A2 address select pins, which configure the three least-significant bits of the 7-bit slave address (default range 0x48–0x4F). Each device must have a unique A2:A0 combination.
What is the function of the CONVST pin on the AD7417ARU-REEL?
The CONVST pin on the AD7417ARU-REEL serves as a hardware conversion trigger: a rising edge fully powers up the device (4 μs wake-up), and a falling edge (if ≥4 μs wide) places the track-and-hold in hold mode and initiates conversion. In automatic mode, conversions occur after each I²C transaction.
Can unused analog inputs on the AD7417ARU-REEL be left floating?
No - unused analog inputs (AIN1–AIN4) on the AD7417ARU-REEL must not be left floating. Per the datasheet, they should be tied to GND or another stable voltage within the 0 V to VREF range to prevent noise coupling, increased power consumption, and potential ADC errors due to leakage currents.
AD7417ARU-REEL Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-TSSOP (0.173", 4.40mm Width)
- Packaging:
- Tape & Reel (TR)
- 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:
- 16-TSSOP
AD7417ARU-REEL FAQ
1.How can I place an order for AD7417ARU-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7417ARU-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 AD7417ARU-REEL reliable?
The price and inventory of AD7417ARU-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7417ARU-REEL is usually 5 days.
3.What payment methods are accepted for AD7417ARU-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7417ARU-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7417ARU-REEL?
AD7417ARU-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7417ARU-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 AD7417ARU-REEL?
For technical support, including AD7417ARU-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7417ARU-REEL requirements.
6.How does Aetrix verify that AD7417ARU-REEL is sourced from the original manufacturer or authorized distributors?
All AD7417ARU-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 AD7417ARU-REEL meets industry standards.
7.What is the process for return or replacement of AD7417ARU-REEL?
All AD7417ARU-REEL units undergo pre-shipment inspection (PSI). If there is an issue with AD7417ARU-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 AD7417ARU-REEL part is unused and in its original packaging.
Return procedure for AD7417ARU-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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