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Analog Devices Inc. ADT7517ARQZ-REEL7
- Part No.:
- ADT7517ARQZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Thermal Management
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADT7517ARQZ-REEL7.pdf
- Description:
- IC SENSOR TEMP QD ADC/DAC 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:4,459
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Product details
Overview
ADT7517ARQZ-REEL7 from Analog Devices is a 16-pin QSOP integrated temperature sensor, 4-channel 10-bit ADC, and quad 10-bit voltage-output DAC. It operates from 2.7 V to 5.5 V, delivers ±0.5°C typical temperature accuracy over −40°C to +120°C, supports SPI/I²C interfaces, and features buffered rail-to-rail DAC outputs with 7 μs settling time. It is used in smart battery chargers and telecom system thermal monitoring.
For engineers reviewing the ADT7517ARQZ-REEL7 datasheet, ADT7517ARQZ-REEL7 pinout, ADT7517ARQZ-REEL7 application, or ADT7517ARQZ-REEL7 equivalent, key selection criteria include its dual-interface compatibility, guaranteed monotonic 10-bit DAC performance, internal 2.28 V reference option, simultaneous LDAC update capability, and integrated temperature sensing with 0.25°C resolution.
Technical Context
The ADT7517ARQZ-REEL7 integrates three core functional blocks: a bandgap-based 10-bit temperature-to-digital converter (0.25°C resolution), a 10-bit 4-channel single-ended ADC with 0 V–2.28 V input range and DC bandwidth, and four independent 10-bit string DACs with on-chip rail-to-rail output buffers. All analog sections share a common reference architecture-either internal 2.28 V or external VREF-IN (1 V to VDD).
Its serial interface supports two modes: 4-wire SPI-compatible (CS/SCLK/SDA/DOUT) and 2-wire SMBus/I²C (SCL/SDA), both featuring packet error checking (PEC) and programmable interrupt output (INT/INT). Power management includes a hardware LDAC pin and software-controlled power-down mode drawing <10 μA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Temperature Accuracy | ±0.5°C typ (0°C to +85°C, VDD = 3.3 V ±10%), enabling precise thermal feedback in closed-loop systems |
| DAC Resolution | 10 bits (ADT7517 variant), guaranteeing monotonic output across full code range for stable analog control |
| ADC Channels | 4 single-ended inputs (AIN1–AIN4), configurable via pin multiplexing (D+/AIN1, D–/AIN2, LDAC/AIN3, AIN4) |
| Supply Range | 2.7 V to 5.5 V, supporting direct integration into 3.3 V and 5 V industrial and telecom power domains |
| DAC Settling Time | 7 μs typical (1/4 to 3/4 scale), sufficient for real-time biasing of op-amps, sensors, or laser diodes |
| Interface Support | SPI, I²C, QSPI, MICROWIRE, DSP, and SMBus with PEC-enabling drop-in use in diverse host controller environments |
| Package | 16-lead QSOP (5.3 mm × 10.2 mm), compatible with standard surface-mount assembly and reflow profiles |
Pinout & Package
ADT7517ARQZ-REEL7 uses a 16-lead QSOP package with exposed pad (RoHS-compliant, lead-free). Pin functions are validated per Analog Devices Rev. B datasheet Figure 7 and Table 5.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT-A (Pin 2) | DAC A buffered analog output | Rail-to-rail voltage source (0 V to VREF), capable of sourcing/sinking ≥16 mA at 3 V supply |
| VOUT-B (Pin 1) | DAC B buffered analog output | Independent output channel; shares same reference and settling behavior as VOUT-A |
| VOUT-C (Pin 16) | DAC C buffered analog output | Simultaneously updatable with other DACs via LDAC pin or software command |
| VOUT-D (Pin 15) | DAC D buffered analog output | Full-scale output range = 0 V to VREF; VREF may be internal (2.28 V) or external (1 V to VDD) |
| VREF-IN (Pin 3) | Reference input for all four DACs | Buffered high-impedance input (>10 MΩ); enables precision ratio-metric operation when tied to external reference |
| CS (Pin 4) | SPI frame synchronization input | Active-low enable; must be held high during I²C operation to avoid bus contention |
| GND (Pin 5) | Analog/digital ground reference | Single-point return for all internal circuitry; requires low-inductance PCB connection |
| VDD (Pin 6) | Positive supply rail | Supplies DACs, ADC, temperature sensor, and digital logic; decoupling capacitor required |
| D+/AIN1 (Pin 7) | External temp sensor (+) / ADC input 1 | Dual-function pin: connects to base-emitter junction of external transistor (e.g., 2N3906) or analog signal |
| D–/AIN2 (Pin 8) | External temp sensor (−) / ADC input 2 | Completes external temperature measurement path; also serves as second ADC channel |
| LDAC/AIN3 (Pin 9) | Load DAC control / ADC input 3 | Falling-edge-triggered (≥20 ns pulse); updates DAC registers simultaneously when enabled in Control Config 3 |
| INT/INT (Pin 10) | Open-drain interrupt output | Signals temperature/VDD/AIN limit violations; polarity programmable; requires external pull-up |
| DOUT/ADD (Pin 11) | SPI data out / I²C address select | In SPI mode: serial data output; in I²C mode: sets device address (1001000, 1001010, or 1001011) |
| SDA/DIN (Pin 12) | I²C bidirectional data / SPI data in | Open-drain; shared between protocols; requires pull-up resistor (typically 4.7 kΩ) |
| SCL/SCLK (Pin 13) | I²C clock / SPI clock | Serial timing source; open-drain; supports fast-mode I²C (400 kHz) and SPI up to 10 MHz |
| AIN4 (Pin 14) | ADC input 4 | Single-ended analog input; 0 V–2.28 V range with 5–20 pF input capacitance and 10 MΩ input resistance |
Key Features
| Feature | Design Value |
|---|---|
| Integrated temperature sensing | On-chip bandgap sensor with 10-bit ADC yields 0.25°C resolution and ±0.5°C accuracy (0°C to +85°C), eliminating need for external thermistor calibration |
| Quad 10-bit DACs | Four monotonic, buffered voltage outputs (0 V to VREF) with 7 μs settling-ideal for multi-channel bias control in optical modules or power supplies |
| Dual serial interface | Hardware-selectable SPI or I²C operation on shared pins; supports SMBus PEC for robust communication in noisy industrial environments |
| Simultaneous DAC update | LDAC pin or software command synchronizes all four DAC outputs, preventing transient mismatches in closed-loop analog systems |
| Internal reference option | Stable 2.28 V ±0.6% reference (80 ppm/°C TC) reduces BOM count and improves system-level accuracy without external components |
| Power-down mode | <10 μA quiescent current enables battery-powered operation; wake-up time ≤5 μs ensures rapid resumption of measurement/control tasks |
Applications
| Smart Battery Charging | Telecom System Thermal Management |
|---|---|
|
Use Scenario: Real-time monitoring and adaptive charging voltage/current based on cell temperature and voltage. IC Role / Device Role / Timing Role: ADT7517ARQZ-REEL7 measures battery pack temperature (via internal sensor or external transistor) and cell voltages (AIN1–AIN4), then adjusts DAC outputs to control charge IC reference or FET gate bias. Use Value: Prevents thermal runaway and extends cycle life by enforcing JEITA-compliant charge profiles with ±0.5°C accuracy and sub-10 ms conversion latency. |
Use Scenario: Maintaining optimal operating temperature in 5G baseband units and optical line cards under variable load. IC Role / Device Role / Timing Role: ADT7517ARQZ-REEL7 reads ambient and component temperatures (internal + external sensors), triggers INT/INT interrupt on threshold breach, and drives fan speed via VOUT-A/B DAC outputs. Use Value: Enables deterministic thermal throttling with 0.25°C resolution and simultaneous 4-channel sampling-reducing firmware overhead versus discrete sensor+ADC solutions. |
| Industrial Process Controller I/O Module | PCB Health Monitoring in Embedded PCs |
|
Use Scenario: Providing calibrated analog outputs for actuator control and reading multiple sensor signals (pressure, humidity, current) in compact PLC modules. IC Role / Device Role / Timing Role: ADT7517ARQZ-REEL7 serves as a mixed-signal front-end: its 4-channel ADC digitizes sensor signals, while quad DACs generate 0–2 V control voltages for valves, heaters, or motor drivers. Use Value: Consolidates 8 discrete components (4x ADC + 4x DAC + ref + temp sensor) into one 16-pin QSOP, reducing layout area by >60% and improving channel-to-channel matching. |
Use Scenario: Monitoring CPU/GPU die temperature, VRM voltage, and chassis airflow in thin-client and edge computing platforms. IC Role / Device Role / Timing Role: ADT7517ARQZ-REEL7 uses internal temperature sensor for SoC junction monitoring, AIN1–AIN4 for 12 V/5 V/3.3 V/1.8 V rail sensing, and INT/INT to assert hardware thermal throttle to chipset. Use Value: Delivers system-level thermal awareness with no additional firmware polling-interrupt-driven response (<100 μs latency) meets Intel Platform Environment Control Interface (PECI) coexistence requirements. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal sensor/ADC/DAC applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADT7516ARQZ-REEL7 | 12-bit DACs (vs. 10-bit), higher relative accuracy (±2 LSB vs. ±0.5 LSB), identical ADC/temp sensor specs and pinout | Better precision needed for calibration-critical instrumentation; higher cost and power (3 mA vs. 2.2 mA) | Select ADT7516ARQZ-REEL7 only if 12-bit DAC resolution and improved INL are required; otherwise ADT7517ARQZ-REEL7 offers optimal balance |
| ADT7519ARQZ-REEL7 | 8-bit DACs (vs. 10-bit), lower relative accuracy (±0.15 LSB), identical ADC/temp sensor specs and pinout | Cost-sensitive consumer applications where 8-bit control granularity suffices (e.g., LED dimming, basic fan control) | Choose ADT7519ARQZ-REEL7 for BOM cost reduction where DAC resolution is non-critical; retains full ADC and temperature functionality |
Compared with ADT7516ARQZ-REEL7 and ADT7519ARQZ-REEL7, the ADT7517ARQZ-REEL7 provides the best trade-off between DAC precision (10-bit monotonic), power efficiency (2.2 mA), and system integration density-making it the default choice for mid-tier industrial and telecom thermal management designs.
Availability
ADT7517ARQZ-REEL7 is available at Aetrix Electronics and suitable for smart battery chargers, telecom thermal management, industrial process controllers, and embedded PC health monitoring requiring stable component supply and long-term lifecycle support.
Supply support for ADT7517ARQZ-REEL7 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 ADT7517ARQZ-REEL7 belongs to Analog Devices' precision temperature and data acquisition product line, designed specifically for space-constrained systems needing integrated sensing, conversion, and analog control without sacrificing accuracy or interface flexibility.
FAQ
What is the maximum sampling rate for the 4-channel ADC in ADT7517ARQZ-REEL7?
The ADT7517ARQZ-REEL7 supports two ADC modes: "Fast ADC" and "Slow ADC". In Fast ADC mode with averaging disabled, the round-robin update rate for all four channels is 400.84 μs per cycle (≈2.5 kSPS aggregate). Each individual channel conversion takes 712 μs in this mode. The device does not support simultaneous sampling-the channels are multiplexed sequentially.
Does ADT7517ARQZ-REEL7 support external temperature sensing, and what transistor types are compatible?
Yes, ADT7517ARQZ-REEL7 supports external temperature sensing using the D+/AIN1 and D–/AIN2 pins as a differential pair. The datasheet explicitly validates compatibility with the 2N3906 PNP transistor. Other matched PNP transistors with similar VBE characteristics and β > 50 may also be used, but calibration against the 2N3906 reference is recommended for ±3°C accuracy across −40°C to +120°C.
Can the internal 2.28 V reference be used for both the ADC and DAC sections of ADT7517ARQZ-REEL7?
No-the internal 2.28 V reference is dedicated solely to the ADC. The DACs require either the external VREF-IN pin (Pin 3) or an externally supplied reference. When VREF-IN is left unconnected, the DAC output range defaults to 0 V to VDD. To use the internal 2.28 V reference for DACs, it must be routed externally from the VREF pin (not available on ADT7517ARQZ-REEL7) or replaced with an external buffer.
Is ADT7517ARQZ-REEL7 pin-compatible with ADT7516ARQZ-REEL7 and ADT7519ARQZ-REEL7?
Yes-ADT7517ARQZ-REEL7 is fully pin-compatible and footprint-compatible with ADT7516ARQZ-REEL7 and ADT7519ARQZ-REEL7. All three variants share identical 16-lead QSOP packaging, pin assignments, register maps, and interface protocols. The only differences are DAC resolution (12/10/8-bit) and corresponding DC performance specs; no PCB redesign is required for substitution.
What is the power-on reset behavior of the DAC outputs in ADT7517ARQZ-REEL7?
Upon power-up, the ADT7517ARQZ-REEL7 forces all four DAC outputs (VOUT-A through VOUT-D) to 0 V and holds them there until the first valid write to a DAC register occurs. This safe-start behavior prevents unintended analog output transients that could damage downstream circuitry or disrupt system initialization sequences.
ADT7517ARQZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Series:
- -
- Package/Case:
- 16-SSOP (0.154", 3.90mm Width)
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Function:
- Temp Monitoring System (Sensor)
- Sensor Type:
- Internal and External
- Sensing Temperature:
- -40°C ~ 120°C
- Accuracy:
- ±5°C(Max)
- Topology:
- ADC, Comparator, Multiplexer, Register Bank
- Output Type:
- I2C, MICROWIRE, QSPI, SPI
- Output Alarm:
- No
- Output Fan:
- No
- Voltage - Supply:
- 2.7V ~ 5.5V
- Operating Temperature:
- -40°C ~ 120°C
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- 16-QSOP
ADT7517ARQZ-REEL7 FAQ
1.How can I place an order for ADT7517ARQZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADT7517ARQZ-REEL7 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 ADT7517ARQZ-REEL7 reliable?
The price and inventory of ADT7517ARQZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADT7517ARQZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADT7517ARQZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADT7517ARQZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADT7517ARQZ-REEL7?
ADT7517ARQZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADT7517ARQZ-REEL7 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 ADT7517ARQZ-REEL7?
For technical support, including ADT7517ARQZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADT7517ARQZ-REEL7 requirements.
6.How does Aetrix verify that ADT7517ARQZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADT7517ARQZ-REEL7 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 ADT7517ARQZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADT7517ARQZ-REEL7?
All ADT7517ARQZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADT7517ARQZ-REEL7, 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 ADT7517ARQZ-REEL7 part is unused and in its original packaging.
Return procedure for ADT7517ARQZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADT7517ARQZ-REEL7 Tags
-
EMC2101-ACZL-TR
Microchip Technology
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MCP9844T-BE/MNY
Microchip Technology
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EMC2101-R-ACZL-TR
Microchip Technology
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MCP98244T-BE/MNY
Microchip Technology
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TC670ECHTR
Microchip Technology
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SE98ATP,547
NXP Semiconductors
-
AMC6821SDBQR
Texas Instruments
-
MAX6604AATA+T
Analog Devices Inc./Maxim Integrated
-
ADT7475ARQZ-REEL
onsemi
-
MAX6643LBBAEE+
Analog Devices Inc./Maxim Integrated
-
MAX6684ESA+T
Analog Devices Inc./Maxim Integrated
-
MAX6639AEE+
Analog Devices Inc./Maxim Integrated
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