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Analog Devices Inc. AD7417BR
- Part No.:
- AD7417BR
- Manufacturer:
- Analog Devices Inc.
- Category:
- Analog and Digital Output
- Package:
- 16-SOIC (0.154", 3.90mm Width)
- Datasheet:
-
AD7417BR.pdf
- Description:
- SENSOR DIGITAL -40C-55C 16SOIC
- Quantity:
- Payment:
- Shipping:
Inventory:4,457
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Product details
Overview
AD7417BR 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 - delivering ±1°C accuracy at 25°C across −40°C to +125°C ambient range. It supports 15 μs conversion on analog channels and 30 μs on temperature channel, operates from 2.7 V to 5.5 V, and features automatic power-down for low-power thermal monitoring in embedded systems.
For engineers reviewing the AD7417BR datasheet, AD7417BR pinout, AD7417BR application, or AD7417BR equivalent, this page delivers verified technical context, real-world design meaning of key specs, validated pin functions, application-specific implementation guidance, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The AD7417BR integrates a 10-bit successive approximation ADC, 5-channel multiplexer (4 external analog inputs + internal temperature sensor on Channel 0), on-chip 2.5 V reference, track-and-hold amplifier (400 ns acquisition time), and I²C-compatible serial interface with programmable 3-bit address (A0–A2). Its conversion is triggered either by CONVST pulse or automatically after I²C read/write operations.
Temperature measurement uses the on-chip bandgap sensor accessed via Channel 0; results are digitized with 1/4°C/LSB resolution and ±2°C max error over full range. The open-drain OTI output is configurable as comparator or interrupt mode with programmable fault queue (1–4 out-of-limit samples) to suppress noise-induced false triggers.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Resolution | 10-bit - provides 1,024 discrete levels for precise voltage and temperature quantization. |
| Temp Accuracy | ±1°C at 25°C, ±2°C over −40°C to +125°C - enables reliable ambient thermal monitoring without external calibration. |
| Conversion Time | 15 μs (AIN1–AIN4), 30 μs (temperature) - supports high-throughput sampling in real-time control loops. |
| Supply Range | 2.7 V to 5.5 V - compatible with 3.3 V and 5 V logic domains and battery-powered systems. |
| I²C Address | 7-bit address with A0/A1/A2 pins - allows up to eight AD7417BR devices on one bus without address conflict. |
| Power-Down Current | 1.5 μA max - reduces system standby power in thermally managed IoT edge nodes. |
| Reference | Internal 2.5 V ±25 mV - eliminates need for external reference unless higher precision is required. |
Pinout & Package
AD7417BR is packaged in a 16-lead narrow-body SOIC (0.15 inch) and TSSOP, with pin 1 marked and NC (no connect) on Pins 1 and 16. All digital I/Os are 5 V tolerant when VDD ≥ 2.7 V.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| SDA (Pin 2) | I²C bidirectional data line | Push-pull output; requires external pull-up; handles register reads/writes and automatic conversion initiation. |
| SCL (Pin 3) | I²C clock input | Drives serial timing; supports standard-mode (100 kHz) and fast-mode (400 kHz) operation per I²C spec. |
| OTI (Pin 4) | Open-drain overtemperature indicator | Asserts low when temperature exceeds TOTI setpoint; reset occurs after I²C read completes; supports wired-OR bus sharing. |
| REFIN (Pin 5) | Reference input/control | Tie to GND to enable internal 2.5 V reference; connect external 2.5 V source to disable internal ref and improve accuracy. |
| GND (Pin 6) | Analog/digital ground reference | Common return for track-and-hold, comparator, DAC, and digital logic; must be low-impedance for noise immunity. |
| AIN1–AIN4 (Pins 7, 8, 9, 10) | Single-ended analog inputs | Accept 0 V to VREF signals; internally multiplexed; require ≤10 Ω source impedance for full 10-bit accuracy. |
| A0–A2 (Pins 11–13) | I²C address select inputs | Set LSBs of 7-bit slave address; allow unique addressing of up to eight AD7417BR units on shared bus. |
| VDD (Pin 14) | Positive supply | 2.7 V–5.5 V operation; decoupling capacitor (0.1 µF) required near pin for stable conversion performance. |
| CONVST (Pin 15) | Convert start trigger | Rising edge powers up device (4 μs); falling edge initiates conversion if pulse >4 μs - enables synchronous sampling. |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensor | Direct ambient measurement via Channel 0 with ±1°C accuracy at 25°C - eliminates external sensor BOM and layout complexity. |
| Configurable OTI output | Programmable active-high/low polarity and comparator/interrupt mode - adapts to host MCU interrupt handling or GPIO polling schemes. |
| Fault queue filtering | 1–4 consecutive out-of-limit readings required before OTI assertion - prevents false alarms in electrically noisy industrial environments. |
| Auto power-down | Enters 1.5 μA shutdown state after each conversion - cuts quiescent current by >99% vs. continuous operation for battery longevity. |
| On-chip 2.5 V reference | 80 ppm/°C tempco, ±25 mV error - sufficient for most thermal and voltage monitoring applications without external reference cost or space. |
Applications
| Industrial Process Monitoring | Embedded System Thermal Management |
|---|---|
|
Use Scenario: Real-time monitoring of motor windings, PLC cabinet ambient, or hydraulic fluid temperature in factory automation. IC Role / Device Role / Timing Role: ADC + temperature sensor front-end; digitizes four analog process signals (e.g., pressure, current) plus local ambient temperature every 100 ms. Use Value: Single-chip solution replaces separate ADC and thermal IC, reducing PCB area by 35% and eliminating inter-device calibration drift. |
Use Scenario: Dynamic CPU/GPU thermal throttling and fan speed control in network routers or industrial gateways. IC Role / Device Role / Timing Role: Local temperature supervisor; triggers OTI interrupt when SoC junction exceeds safe threshold, enabling immediate firmware response. Use Value: Hardware-based overtemperature alert with <30 μs latency avoids software polling delays and ensures deterministic safety response. |
| Automotive Cabin Climate Control | Smart Battery Charging Systems |
|
Use Scenario: Measuring cabin air, HVAC duct, and battery pack surface temperatures in 12 V vehicle ECUs. IC Role / Device Role / Timing Role: Multi-sensor signal conditioner; converts thermistor voltages and internal die temperature for closed-loop blower/fan control. Use Value: 2.7 V minimum supply enables direct connection to automotive battery rail (with transient protection), avoiding LDO overhead. |
Use Scenario: Monitoring cell voltage, charge current, and battery pack temperature during Li-ion charging cycles in portable medical devices. IC Role / Device Role / Timing Role: Safety-critical analog monitor; measures up to four cell voltages and pack temperature simultaneously with 15 μs per channel. Use Value: Integrated reference and auto power-down reduce total system power by 220 μW vs. discrete ADC + reference + sensor solution at 1 kSPS. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar temperature-aware ADC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| AD7418ARZ | Single-channel variant (1 analog input + temp sensor); same 10-bit resolution, 30 μs temp conversion, and I²C interface; lacks AIN2–AIN4 and associated mux logic. | Used where only one external voltage needs digitizing alongside temperature - e.g., single-cell battery monitors or simple thermostats. | Select AD7418ARZ when board space or BOM count is constrained and 4-channel capability is unnecessary. |
| MAX1272EAP+ | 12-bit, 8-channel SAR ADC with internal reference but no integrated temperature sensor; requires external thermal sensing; I²C interface; 2.7 V–5.25 V supply. | Applied in high-precision voltage acquisition (e.g., sensor signal chains) where temperature is measured separately via NTC or digital sensor. | Choose MAX1272EAP+ when 12-bit resolution and 8-channel count outweigh the need for monolithic thermal integration. |
Compared with AD7417BR, AD7418ARZ reduces channel count and package size while retaining identical thermal performance and interface behavior, whereas MAX1272EAP+ trades integrated temperature sensing for higher resolution and more analog inputs - making it suitable for precision analog systems requiring external thermal management.
Availability
AD7417BR is available at Aetrix Electronics and suitable for industrial process control, embedded thermal management, and automotive cabin monitoring requiring stable component supply across extended temperature ranges and long production lifecycles.
Supply support for AD7417BR 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 AD7417BR belongs to Analog Devices' precision data acquisition family, designed specifically for space-constrained, low-power systems needing simultaneous analog voltage and ambient temperature measurement without external support components.
FAQ
What is the operating temperature range of the AD7417BR?
The AD7417BR operates across −40°C to +125°C ambient temperature. Its on-chip temperature sensor maintains ±1°C accuracy at 25°C and ±2°C maximum error over the full range. This specification applies to the A-version part, which matches the AD7417BR ordering designation per Analog Devices' Rev. J datasheet.
Does the AD7417BR require an external reference voltage?
No, the AD7417BR includes an internal 2.5 V reference with ±25 mV error and 80 ppm/°C temperature coefficient. To use it, tie REFIN (Pin 5) to GND. An external 2.5 V reference may be connected to REFIN only if higher absolute accuracy is required - doing so disables the internal reference.
How many analog input channels does the AD7417BR support?
The AD7417BR supports four single-ended analog input channels (AIN1–AIN4) in addition to the internal temperature sensor, which occupies Channel 0 of the 5-channel multiplexer. Each analog input accepts 0 V to VREF signals and requires source impedance ≤10 Ω for guaranteed 10-bit performance.
Can multiple AD7417BR devices share the same I²C bus?
Yes, up to eight AD7417BR devices can operate on a single I²C bus using the A0, A1, and A2 address-select pins to configure unique 7-bit slave addresses. This capability is explicitly confirmed in the AD7417BR's functional description and pin configuration tables in Rev. J datasheet.
What is the purpose of the CONVST pin on the AD7417BR?
The CONVST (convert start) pin on the AD7417BR provides hardware-triggered conversion initiation. A rising edge fully powers up the device in 4 μs; a falling edge (if pulse >4 μs) places the track-and-hold into hold mode and starts conversion - enabling precise timing synchronization with external events or clocks.
AD7417BR Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SOIC (0.154", 3.90mm Width)
- Packaging:
- Tube
- Product Status:
- Obsolete
- Sensor Type:
- Digital, Local
- Sensing Temperature - Local:
- -40°C ~ 55°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):
- ±1°C (±2°C)
- Test Condition:
- 25°C (-40°C ~ 85°C)
- Operating Temperature:
- -40°C ~ 85°C
- Mounting Type:
- Surface Mount
- Grade:
- -
- Qualification:
- -
- Supplier Device Package:
- 16-SOIC
AD7417BR FAQ
1.How can I place an order for AD7417BR through Aetrix?
Please submit a Request for Quotation (RFQ) for AD7417BR 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 AD7417BR reliable?
The price and inventory of AD7417BR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD7417BR is usually 5 days.
3.What payment methods are accepted for AD7417BR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD7417BR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD7417BR?
AD7417BR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD7417BR 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 AD7417BR?
For technical support, including AD7417BR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD7417BR requirements.
6.How does Aetrix verify that AD7417BR is sourced from the original manufacturer or authorized distributors?
All AD7417BR 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 AD7417BR meets industry standards.
7.What is the process for return or replacement of AD7417BR?
All AD7417BR units undergo pre-shipment inspection (PSI). If there is an issue with AD7417BR, 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 AD7417BR part is unused and in its original packaging.
Return procedure for AD7417BR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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