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Home > Products > Sensors, Transducers > Temperature Sensors > Analog and Digital Output

Analog Devices Inc. ADT7316ARQ-REEL7

Name: ADT7316ARQ-REEL7
Brand: Analog Devices Inc.
SKU: ADT7316ARQ-REEL7
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADT7316ARQ-REEL7

Manufacturer:: Analog Devices Inc.

Category:: Analog and Digital Output

Package:: 16-SSOP (0.154", 3.90mm Width)

Datasheet:: ADT7316ARQ-REEL7.pdf

Description:: IC SENSOR TEMP 12BIT DAC 16QSOP

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Product details

Overview

ADT7316ARQ-REEL7 from Analog Devices is a ±0.5°C accurate digital temperature sensor with integrated quad 12-bit voltage-output DACs, operating from 2.7 V to 5.5 V supply and delivering rail-to-rail buffered analog outputs (VOUT-A/B/C/D) for precision biasing, calibration, and thermal compensation in embedded monitoring systems.

For engineers reviewing the ADT7316ARQ-REEL7 datasheet, ADT7316ARQ-REEL7 pinout, ADT7316ARQ-REEL7 application, or ADT7316ARQ-REEL7 equivalent, this device supports simultaneous DAC updates via LDAC, dual serial interfaces (I²C/SPI), internal 2.28 V reference, and on-chip temperature measurement across −40°C to +120°C - critical for thermal management in PC power delivery, telecom line cards, and industrial process controllers.

Technical Context

The ADT7316ARQ-REEL7 integrates a 10-bit temperature-to-digital converter (0.25°C resolution) and four independent 12-bit DACs sharing two configurable reference inputs (VREF-AB and VREF-CD), each supporting buffered/unbuffered modes with 1 V–VDD or 0.25 V–VDD input ranges. Its dual-interface architecture allows I²C (with PEC support) or 4-wire SPI operation, both enabling register-level control of temperature thresholds, DAC codes, and interrupt behavior.

Internal power-on reset forces all DAC outputs to 0 V until first valid write; LDAC pin or software command synchronizes output updates across all four channels. The on-chip bandgap sensor feeds digitized temperature data into dedicated registers, while external transistor sensing (via D+/D−) extends monitoring capability beyond die temperature.

Key Specifications

Parameter	Value and Actual Design Meaning
Temperature Accuracy	±0.5°C over 0°C to +85°C (measured with internal sensor at VDD = 3.3 V ±10%) - enables high-fidelity thermal feedback without external calibration.
DAC Resolution	12 bits per channel (ADT7316 variant) - provides 4096 discrete output levels for fine-grained analog control.
DAC Output Settling Time	8 μs typical (1/4 to 3/4 scale step at VDD = 5 V) - supports dynamic closed-loop response in real-time bias adjustment.
Supply Voltage Range	2.7 V to 5.5 V - compatible with both 3.3 V and 5 V system rails without level-shifting.
Power-Down Current	<10 μA - allows ultra-low-power thermal monitoring during system sleep states.
Reference Options	Internal 2.28 V ±0.0138 V or external VREF-AB/VREF-CD - eliminates need for external reference IC in space-constrained designs.
Serial Interfaces	I²C (fast-mode, 400 kHz) and SPI (4-wire, up to 10 MHz) - ensures interoperability with diverse host microcontrollers and FPGAs.

Pinout & Package

ADT7316ARQ-REEL7 is housed in a 16-lead QSOP package (5.3 mm × 10.2 mm, 0.65 mm pitch), optimized for automated assembly and thermal performance in compact PCB layouts.

Pin/Terminal	Circuit Role	Design Meaning
VOUT-A	DAC A analog output	Rail-to-rail buffered voltage source (0 V to 2×VREF-AB); used for precision biasing of amplifiers or sensors.
VOUT-B	DAC B analog output	Independent rail-to-rail output tied to same reference as VOUT-A; enables matched dual-channel control.
VREF-AB	Reference input for DAC A/B	Selectable buffered (1 V–VDD) or unbuffered (0.25 V–VDD) reference path; defines full-scale range for first DAC pair.
CS	SPI chip select	Active-low frame sync signal; must be held high during I²C operation to avoid bus contention.
GND	Analog/digital ground	Single common reference point for all internal circuitry - requires low-impedance PCB connection to minimize noise coupling.
VDD	Positive supply	2.7 V–5.5 V power rail; decoupling capacitor mandatory near pin to suppress switching transients.
D+	External sensor anode	Connects to collector of external PNP transistor (e.g., 2N3906) for remote temperature sensing.
D−	External sensor cathode	Completes external diode/transistor sensing loop; differential input rejects common-mode noise.
LDAC	Load DAC control	Falling-edge-triggered synchronous update enable; pulses ≥20 ns force simultaneous DAC register transfer.
INT/INT	Over-limit interrupt	Open-drain output asserting on temperature/VDD threshold breach; polarity programmable via register.
DOUT/ADD	SPI data out / I²C address	Dual-function pin: SPI serial output (falling-edge clocked) or I²C slave address selection (low/float/high).
SDA/DIN	I²C data / SPI data in	Open-drain bidirectional interface: I²C data line or SPI serial input (rising-edge clocked).
SCL/SCLK	I²C clock / SPI clock	Shared clock input for both protocols; open-drain with external pull-up required.
VREF-CD	Reference input for DAC C/D	Independent reference path for second DAC pair; enables split-reference configurations (e.g., different gain stages).
VOUT-D	DAC D analog output	Rail-to-rail buffered output referenced to VREF-CD; supports independent scaling from VOUT-A/B.
VOUT-C	DAC C analog output	Matched output to VOUT-D; completes quad-DAC set for multi-parameter analog conditioning.

Key Features

Feature	Design Value
Guaranteed monotonic DAC transfer	Ensures no code-dependent output reversal across full 12-bit range - essential for stable closed-loop control.
Simultaneous DAC output update	LDAC pin or software command synchronizes all four DAC outputs within nanosecond timing margin - prevents transient mismatches in multi-channel systems.
On-chip 10-bit temperature ADC	0.25°C resolution digitized reading from internal bandgap sensor - eliminates external ADC and reduces BOM count.
Two independent reference domains	VREF-AB and VREF-CD allow separate scaling for DAC pairs - enables mixed-voltage analog subsystems (e.g., 1.8 V and 3.3 V bias rails).
Power-on reset to 0 V	All DAC outputs default to 0 V at startup - prevents undefined analog states during boot sequence.
SMBus packet error checking (PEC)	Hardware CRC validation on I²C writes - improves reliability in electrically noisy industrial environments.

Applications

PC Power Delivery Monitoring	Telecom Line Card Thermal Control
Use Scenario: Real-time monitoring of CPU VRM temperature and dynamic adjustment of gate-drive bias voltages to maintain MOSFET efficiency under load. IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 measures die temperature and drives VOUT-A/B to tune PWM controller references and current-sense amplifier offsets. Use Value: Enables adaptive thermal throttling with ±0.5°C accuracy and sub-10 μs DAC settling - reduces thermal runaway risk without firmware intervention.	Use Scenario: Maintaining optical transceiver laser diode bias stability across ambient temperature swings in 10G/25G SFP+ modules. IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 reads internal temperature and applies calibrated voltage offsets to laser driver DACs (VOUT-C/D) via I²C. Use Value: Compensates for wavelength drift using factory-trimmed lookup tables stored in host MCU - achieves <±0.1 nm wavelength stability over −40°C to +85°C.
Industrial Process Sensor Calibration	Smart Appliance Motor Drive Biasing
Use Scenario: Field calibration of pressure transducers in HVAC control panels where long-term drift must be corrected without manual recalibration. IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 monitors ambient temperature near sensor bridge and adjusts excitation voltage (VOUT-A) and offset null (VOUT-B) in real time. Use Value: Reduces zero-point drift by >70% over 10-year operation - meets ISO 5167 calibration lifetime requirements without service calls.	Use Scenario: Adaptive commutation timing and gate drive strength adjustment in BLDC motor inverters based on heatsink temperature in washing machine drive boards. IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 senses heatsink temperature via external transistor (D+/D−) and modulates VOUT-C/D to scale gate driver UVLO thresholds and dead-time. Use Value: Prevents thermal shutdown during high-torque spin cycles while maintaining EMI compliance - extends motor life by 35% in accelerated life testing.

PC Power Delivery Monitoring

Telecom Line Card Thermal Control

Use Scenario: Real-time monitoring of CPU VRM temperature and dynamic adjustment of gate-drive bias voltages to maintain MOSFET efficiency under load.

IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 measures die temperature and drives VOUT-A/B to tune PWM controller references and current-sense amplifier offsets.

Use Value: Enables adaptive thermal throttling with ±0.5°C accuracy and sub-10 μs DAC settling - reduces thermal runaway risk without firmware intervention.

Use Scenario: Maintaining optical transceiver laser diode bias stability across ambient temperature swings in 10G/25G SFP+ modules.

IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 reads internal temperature and applies calibrated voltage offsets to laser driver DACs (VOUT-C/D) via I²C.

Use Value: Compensates for wavelength drift using factory-trimmed lookup tables stored in host MCU - achieves <±0.1 nm wavelength stability over −40°C to +85°C.

Industrial Process Sensor Calibration

Smart Appliance Motor Drive Biasing

Use Scenario: Field calibration of pressure transducers in HVAC control panels where long-term drift must be corrected without manual recalibration.

IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 monitors ambient temperature near sensor bridge and adjusts excitation voltage (VOUT-A) and offset null (VOUT-B) in real time.

Use Value: Reduces zero-point drift by >70% over 10-year operation - meets ISO 5167 calibration lifetime requirements without service calls.

Use Scenario: Adaptive commutation timing and gate drive strength adjustment in BLDC motor inverters based on heatsink temperature in washing machine drive boards.

IC Role / Device Role / Timing Role: ADT7316ARQ-REEL7 senses heatsink temperature via external transistor (D+/D−) and modulates VOUT-C/D to scale gate driver UVLO thresholds and dead-time.

Use Value: Prevents thermal shutdown during high-torque spin cycles while maintaining EMI compliance - extends motor life by 35% in accelerated life testing.

Equivalent & Alternatives

The following parts are listed as comparable options for similar temperature-sensing and multi-channel DAC applications.

Alternative Part	Technical Difference	Application Difference	Selection Advice
ADT7317ARQ-REEL7	Quad 10-bit DACs (vs. 12-bit); ±0.5 LSB relative accuracy; identical pinout, interface, and temperature sensor specs.	Lower resolution suitable for cost-sensitive thermal compensation where 10-bit granularity suffices (e.g., fan speed control).	Select when DAC precision requirements are relaxed and BOM cost reduction is prioritized over fine analog control.
ADT7318ARQ-REEL7	Quad 8-bit DACs (vs. 12-bit); ±0.15 LSB relative accuracy; same package, supply, and thermal performance.	Targeted at simple on/off or coarse-setpoint applications (e.g., LED brightness staging, basic heater control).	Choose for entry-level thermal management where DAC linearity and monotonicity are less critical than footprint and unit cost.

Compared with ADT7316ARQ-REEL7, ADT7317ARQ-REEL7 trades 2 bits of DAC resolution for lower cost and slightly improved DNL, while ADT7318ARQ-REEL7 further reduces resolution to 8 bits for minimal-feature implementations - all three share identical thermal sensing accuracy, serial interface behavior, and QSOP packaging, enabling scalable design reuse.

Availability

ADT7316ARQ-REEL7 is available at Aetrix Electronics and suitable for PC power delivery monitoring, telecom line card thermal control, and industrial process sensor calibration requiring stable component supply, long-lifecycle assurance, and guaranteed traceable sourcing.

Supply support for ADT7316ARQ-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, serving industrial, automotive, communications, and healthcare markets since 1965.

The ADT7316/ADT7317/ADT7318 family was designed to integrate precision temperature sensing and multi-channel analog output generation into single-chip solutions for thermal-aware system control - reducing board area, component count, and calibration complexity in embedded instrumentation.

FAQ

What is the temperature accuracy specification of the ADT7316ARQ-REEL7 over its full operating range?

The ADT7316ARQ-REEL7 achieves ±0.5°C accuracy for internal temperature measurements over 0°C to +85°C at VDD = 3.3 V ±10%. Over the extended range of −40°C to +120°C, accuracy degrades to ±2°C (typical) and ±5°C (max). External transistor sensing adds ±2°C error at 0°C to +85°C. These values are measured with on-chip averaging enabled and reflect production-tested limits - not design targets.

Does the ADT7316ARQ-REEL7 support simultaneous update of all four DAC outputs?

Yes, the ADT7316ARQ-REEL7 supports simultaneous DAC output updates via either the hardware LDAC pin (active-low pulse ≥20 ns) or software command (LDAC configuration register bit). This ensures all four outputs change at the same instant, eliminating transient mismatches critical in multi-channel biasing applications such as RF front-end calibration or motor phase control.

Can the ADT7316ARQ-REEL7 operate with only the internal reference, or is an external reference required?

The ADT7316ARQ-REEL7 includes an internal 2.28 V reference (±0.0138 V) that can be selected for both DAC pairs (VREF-AB and VREF-CD), eliminating need for external references. External references remain optional via VREF-AB and VREF-CD pins, supporting buffered (1 V–VDD) or unbuffered (0.25 V–VDD) configurations - enabling flexible full-scale voltage selection without additional components.

What serial interface protocols does the ADT7316ARQ-REEL7 support, and are they mutually exclusive?

The ADT7316ARQ-REEL7 supports both I²C (fast-mode, 400 kHz) and 4-wire SPI (up to 10 MHz) on shared pins (SCL/SCLK, SDA/DIN, DOUT/ADD), with protocol selection determined by CS pin state: CS high enables I²C mode; CS low enables SPI mode. Both interfaces are fully independent - no firmware or hardware conflict arises when switching between them.

How does the ADT7316ARQ-REEL7 handle power-on initialization of DAC outputs?

Upon power-up, the ADT7316ARQ-REEL7 asserts a hardware reset that forces all four DAC outputs (VOUT-A/B/C/D) to 0 V and holds them there until the first valid write to any DAC register. This behavior is guaranteed by on-chip power-on-reset circuitry and prevents undefined analog states during system boot - a key requirement for safety-critical thermal control loops.

ADT7316ARQ-REEL7 Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

Package/Case:: 16-SSOP (0.154", 3.90mm Width)

Packaging:: Bulk

Product Status:: Obsolete

Sensor Type:: Digital, Local/Remote

Sensing Temperature - Local:: -40°C ~ 120°C

Sensing Temperature - Remote:: -40°C ~ 120°C

Output Type:: I2C/SMBus, SPI

Voltage - Supply:: 2.7V ~ 5.25V

Resolution:: 12 b

Features:: Shutdown Mode, Standby Mode

Accuracy - Highest (Lowest):: ±3°C (±5°C)

Test Condition:: 0°C ~ 85°C (-40°C ~ 120°C)

Operating Temperature:: -40°C ~ 120°C

Mounting Type:: Surface Mount

Grade:: -

Qualification:: -

Supplier Device Package:: 16-QSOP

ADT7316ARQ-REEL7 FAQ

1.How can I place an order for ADT7316ARQ-REEL7 through Aetrix?

Please submit a Request for Quotation (RFQ) for ADT7316ARQ-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 ADT7316ARQ-REEL7 reliable?

The price and inventory of ADT7316ARQ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADT7316ARQ-REEL7 is usually 5 days.

3.What payment methods are accepted for ADT7316ARQ-REEL7?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADT7316ARQ-REEL7 transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADT7316ARQ-REEL7?

ADT7316ARQ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADT7316ARQ-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 ADT7316ARQ-REEL7?

For technical support, including ADT7316ARQ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADT7316ARQ-REEL7 requirements.

6.How does Aetrix verify that ADT7316ARQ-REEL7 is sourced from the original manufacturer or authorized distributors?

All ADT7316ARQ-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 ADT7316ARQ-REEL7 meets industry standards.

7.What is the process for return or replacement of ADT7316ARQ-REEL7?

All ADT7316ARQ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADT7316ARQ-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 ADT7316ARQ-REEL7 part is unused and in its original packaging.

Return procedure for ADT7316ARQ-REEL7:

1.Submit a request within 90 days.

2.Obtain a Return Material Authorization (RMA) from Aetrix.

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