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

Analog Devices Inc. ADT7316ARQZ

Name: ADT7316ARQZ
Brand: Analog Devices Inc.
SKU: ADT7316ARQZ
Price: 2.40 USD
Availability: InStock
Rating: 5 (2 reviews)

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Part No.:: ADT7316ARQZ

Manufacturer:: Analog Devices Inc.

Category:: Analog and Digital Output

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

Datasheet:: ADT7316ARQZ.pdf

Description:: IC SENSOR TEMP QUAD DAC 16QSOP

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Product details

Overview

ADT7316ARQZ 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, or thermal compensation in embedded monitoring systems.

For engineers reviewing the ADT7316ARQZ datasheet, ADT7316ARQZ pinout, ADT7316ARQZ application, or ADT7316ARQZ equivalent, key selection criteria include its 10-bit internal temperature ADC (±0.5°C accuracy over 0°C to +85°C), simultaneous LDAC-triggered DAC update capability, dual-reference architecture (VREF-AB/VREF-CD), I²C/SPI dual-interface support, and 16-lead QSOP package with verified pin mapping.

Technical Context

The ADT7316ARQZ integrates a bandgap-based 10-bit temperature-to-digital converter (0.25°C resolution) and four independent 12-bit DACs sharing two configurable reference inputs (VREF-AB for DAC A/B, VREF-CD for DAC C/D), each supporting buffered/unbuffered modes with 1 V–VDD or 0.25 V–VDD input ranges respectively.

It implements dual serial interfaces: a 4-wire SPI-compatible mode (CS/SCLK/SDA/DOUT) and a 2-wire I²C/SMBus mode (SCL/SDA), both supporting packet error checking (PEC) and software/hardware LDAC control for synchronized output updates - critical for multi-channel closed-loop thermal regulation.

Key Specifications

Parameter	Value and Actual Design Meaning
Temperature Accuracy	±0.5°C over 0°C to +85°C - enables direct replacement of thermistors in PC thermal management without calibration.
DAC Resolution	12 bits per channel - supports 4096-step analog control for high-fidelity sensor biasing or reference trimming.
DAC Output Settling Time	8 μs typical (1/4 to 3/4 scale) - ensures fast response in dynamic thermal compensation loops.
Supply Voltage Range	2.7 V to 5.5 V - compatible with both 3.3 V and 5 V industrial and computing power rails.
Interface Support	I²C (fast-mode, 400 kHz) and SPI (4-wire) - allows integration into legacy SMBus systems or high-speed microcontroller peripherals.
Power-Down Current	<10 μA - extends battery life in portable instruments during idle periods.
Package	16-lead QSOP (5.3 mm × 10.2 mm) - provides compact footprint with validated thermal performance up to +120°C ambient.

Pinout & Package

ADT7316ARQZ is housed in a 16-lead QSOP package with exposed pad (not electrically connected), optimized for thermal stability and PCB layout compatibility in space-constrained applications.

Pin/Terminal	Circuit Role	Design Meaning
1 (VOUT-B)	DAC B analog output	Rail-to-rail buffered voltage output; drives loads up to 25 mA at 5 V - suitable for direct connection to op-amp inputs or sensor excitation circuits.
2 (VOUT-A)	DAC A analog output	Independent 12-bit buffered output; shares VREF-AB reference - enables matched biasing for differential sensor pairs.
3 (VREF-AB)	DAC A/B reference input	Configurable buffered/unbuffered input (1 V–VDD or 0.25 V–VDD range); sets full-scale for DAC A and B simultaneously.
4 (CS)	SPI chip select	Active-low frame sync for SPI mode; must be tied high in I²C mode to prevent interface conflict.
5 (GND)	Analog/digital ground	Single common reference point for all circuitry - requires low-impedance PCB plane connection to minimize noise coupling.
6 (VDD)	Positive supply	2.7 V–5.5 V single supply powering both temperature sensor and DACs; decoupling capacitor mandatory near pin.
7 (D+)	External temp sensor (+)	Connects to collector of external PNP transistor (e.g., 2N3906) for remote temperature sensing - supports dual-point thermal monitoring.
8 (D−)	External temp sensor (−)	Connects to emitter of external PNP transistor; forms current-source-based remote diode interface with 180 μA sourcing capability.
9 (LDAC)	Load DAC control	Falling-edge triggered; updates all DAC registers simultaneously - eliminates timing skew between channels in closed-loop control.
10 (INT/INT)	Over-limit interrupt	Open-drain output; asserts on VDD, internal or external temperature limit violation - enables autonomous system shutdown without MCU polling.
11 (DOUT/ADD)	SPI data out / I²C address	Dual-function: SPI serial output (falling-edge clocked) or I²C address selection (low/float/high = 0x48/0x4A/0x4B).
12 (SDA/DIN)	I²C data / SPI data in	Open-drain bidirectional I²C bus line or SPI serial input (rising-edge clocked) - shared physical pin with pull-up required.
13 (SCL/SCLK)	I²C clock / SPI clock	Shared clock input for both interfaces; open-drain with external pull-up - supports 400 kHz I²C or >10 MHz SPI operation.
14 (VREF-CD)	DAC C/D reference input	Independent reference path for DAC C and D; enables split-reference architectures (e.g., VREF-AB = 2.28 V, VREF-CD = 3.3 V).
15 (VOUT-D)	DAC D analog output	Final buffered 12-bit output; complements VOUT-C for 4-channel analog control - supports independent gain/offset tuning per channel.
16 (VOUT-C)	DAC C analog output	Paired with VOUT-D under VREF-CD; allows synchronized 2-channel output updates via LDAC while maintaining isolation from A/B pair.

Key Features

Feature	Design Value
Simultaneous DAC update via LDAC	Hardware/software-triggered atomic update across all four DACs - eliminates transient mismatches in multi-sensor calibration systems.
Internal 2.28 V reference	Stable on-chip VREF option eliminates need for external precision reference - reduces BOM count and layout area in cost-sensitive designs.
Double-buffered DAC registers	Input registers accept new data while DAC registers hold previous values - prevents glitches during continuous streaming or background updates.
Power-on reset to 0 V	All DAC outputs default to 0 V at power-up - ensures safe startup state for connected actuators or bias networks without MCU intervention.
Thermal monitoring with interrupt	Programmable high/low temperature limits with INT pin assertion - enables hardware-level thermal throttling in PCs or telecom equipment.

Applications

PC Thermal Management	Industrial Process Control
Use Scenario: Real-time CPU/GPU die temperature monitoring and fan speed control in desktop/laptop motherboards. IC Role / Device Role / Timing Role: Primary temperature sensor and DAC-based PWM generator bias control for thermal regulation ICs. Use Value: ±0.5°C accuracy enables tighter thermal margins than thermistors, reducing unnecessary fan noise and extending component lifetime.	Use Scenario: Closed-loop temperature control of heating elements in PLC-controlled manufacturing ovens. IC Role / Device Role / Timing Role: Dual-role device: internal sensor monitors controller ambient; DACs drive heater driver references and setpoint offsets. Use Value: Four independent 12-bit DACs allow simultaneous tuning of multiple PID loop parameters without external DACs or multiplexing.
Telecom Power Amplifier Biasing	Test Equipment Calibration
Use Scenario: Temperature-compensated bias current adjustment for GaAs FET power amplifiers in base station RF modules. IC Role / Device Role / Timing Role: Measures PA junction temperature via external transistor; DACs adjust gate voltage references in real time. Use Value: 0.25°C temperature resolution and 8 μs DAC settling enable sub-millisecond compensation - critical for maintaining EVM under thermal drift.	Use Scenario: Precision voltage reference generation and sensor excitation in benchtop multimeters and source-measure units. IC Role / Device Role / Timing Role: Provides stable, programmable DC offsets and calibration slopes using internal temperature data for auto-calibration routines. Use Value: Internal 10-bit ADC eliminates need for external temperature sensor; quad DACs generate four independent calibration voltages from one IC.

PC Thermal Management

Industrial Process Control

Use Scenario: Real-time CPU/GPU die temperature monitoring and fan speed control in desktop/laptop motherboards.

IC Role / Device Role / Timing Role: Primary temperature sensor and DAC-based PWM generator bias control for thermal regulation ICs.

Use Value: ±0.5°C accuracy enables tighter thermal margins than thermistors, reducing unnecessary fan noise and extending component lifetime.

Use Scenario: Closed-loop temperature control of heating elements in PLC-controlled manufacturing ovens.

IC Role / Device Role / Timing Role: Dual-role device: internal sensor monitors controller ambient; DACs drive heater driver references and setpoint offsets.

Use Value: Four independent 12-bit DACs allow simultaneous tuning of multiple PID loop parameters without external DACs or multiplexing.

Telecom Power Amplifier Biasing

Test Equipment Calibration

Use Scenario: Temperature-compensated bias current adjustment for GaAs FET power amplifiers in base station RF modules.

IC Role / Device Role / Timing Role: Measures PA junction temperature via external transistor; DACs adjust gate voltage references in real time.

Use Value: 0.25°C temperature resolution and 8 μs DAC settling enable sub-millisecond compensation - critical for maintaining EVM under thermal drift.

Use Scenario: Precision voltage reference generation and sensor excitation in benchtop multimeters and source-measure units.

IC Role / Device Role / Timing Role: Provides stable, programmable DC offsets and calibration slopes using internal temperature data for auto-calibration routines.

Use Value: Internal 10-bit ADC eliminates need for external temperature sensor; quad DACs generate four independent calibration voltages from one IC.

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
ADT7317ARQZ	Quad 10-bit DACs (vs. 12-bit); ±0.5 LSB relative accuracy (vs. ±2 LSB); identical temperature sensor, pinout, and interface.	Lower DAC resolution suits cost-sensitive applications where 10-bit linearity suffices (e.g., basic thermal alarms).	Select ADT7317ARQZ when 10-bit DAC precision meets system requirements and BOM cost reduction is prioritized.
ADT7318ARQZ	Quad 8-bit DACs (vs. 12-bit); ±0.15 LSB relative accuracy (vs. ±2 LSB); same temperature sensor, package, and serial interface.	Targeted at simple on/off or coarse analog control (e.g., LED brightness, fan staging) rather than precision biasing.	Choose ADT7318ARQZ only for ultra-low-cost implementations requiring minimal DAC resolution and relaxed monotonicity.

Compared with ADT7317ARQZ and ADT7318ARQZ, the ADT7316ARQZ delivers highest DAC resolution and worst-case INL for applications demanding fine-grained analog control - making it the sole choice when 12-bit monotonicity and ±0.5°C thermal accuracy are jointly required.

Availability

ADT7316ARQZ is available at Aetrix Electronics and suitable for PC thermal management, industrial process control, telecom power amplifier biasing, and test equipment calibration requiring stable component supply across extended temperature ranges and long production lifecycles.

Supply support for ADT7316ARQZ 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, with design and manufacturing expertise spanning precision sensing, power management, and RF technologies.

The ADT7316ARQZ belongs to Analog Devices' precision temperature sensor and integrated DAC product line, engineered specifically for embedded thermal monitoring and analog control applications where accuracy, integration density, and dual-interface flexibility are critical.

FAQ

What is the guaranteed temperature accuracy of the ADT7316ARQZ over its full operating range?

The ADT7316ARQZ guarantees ±0.5°C accuracy over 0°C to +85°C ambient temperature when powered from 3.3 V ±10%. At −40°C to +120°C, accuracy degrades to ±2°C (min) / ±5°C (max). This specification is measured using the internal bandgap sensor with averaging enabled and applies directly to the ADT7316ARQZ - not the ADT7317ARQZ or ADT7318ARQZ variants.

Does the ADT7316ARQZ support simultaneous update of all four DAC outputs?

Yes, the ADT7316ARQZ supports simultaneous DAC output updates via its LDAC (Load DAC) function. A falling edge on Pin 9 (LDAC) transfers data from all four input registers to their respective DAC registers atomically. This feature is confirmed in the functional block diagram and pin description table of the ADT7316ARQZ datasheet Rev. B, ensuring glitch-free multi-channel control essential for the ADT7316ARQZ's use in thermal regulation systems.

Can the ADT7316ARQZ operate with only the internal reference, or does it require external reference connections?

The ADT7316ARQZ can operate fully with its internal 2.28 V reference - no external reference is required. Pins VREF-AB (Pin 3) and VREF-CD (Pin 14) may be left unconnected when using the internal reference, which is enabled by default at power-up. This capability is explicitly stated in the "On-Chip Reference" section of the ADT7316ARQZ datasheet and simplifies design for applications where the ADT7316ARQZ serves as a self-contained thermal sensor and DAC subsystem.

What serial interfaces does the ADT7316ARQZ support, and how are they selected?

The ADT7316ARQZ supports both I²C (2-wire) and SPI (4-wire) serial interfaces, selected automatically by hardware configuration: CS (Pin 4) pulled high enables I²C mode; CS pulled low enables SPI mode. The SCL/SCLK (Pin 13) and SDA/DIN (Pin 12) pins serve dual roles, and the ADD pin (Pin 11) configures I²C address. This dual-interface capability is documented in the "Serial Interface Selection" section of the ADT7316ARQZ Rev. B datasheet.

Is the ADT7316ARQZ pin-compatible with the ADT7317ARQZ and ADT7318ARQZ?

Yes, the ADT7316ARQZ is fully pin-compatible with the ADT7317ARQZ and ADT7318ARQZ - all three share identical 16-lead QSOP packaging, pinout, register map, and interface behavior. This allows drop-in replacement based on DAC resolution requirements without PCB redesign. The compatibility is confirmed in the "Pin Configuration" and "Ordering Guide" sections of the ADT7316ARQZ/ADT7317ARQZ/ADT7318ARQZ datasheet Rev. B.

ADT7316ARQZ Specifications

Product attributes: Attribute value

Manufacturer:: Analog Devices Inc.

Series:: -

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

Packaging:: Tube

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

ADT7316ARQZ FAQ

1.How can I place an order for ADT7316ARQZ through Aetrix?

Please submit a Request for Quotation (RFQ) for ADT7316ARQZ 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 ADT7316ARQZ reliable?

The price and inventory of ADT7316ARQZ are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADT7316ARQZ is usually 5 days.

3.What payment methods are accepted for ADT7316ARQZ?

We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADT7316ARQZ transactions.

Note: Certain payment methods may incur a processing fee.

4.How is shipping managed for ADT7316ARQZ?

ADT7316ARQZ orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.

Once your ADT7316ARQZ 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 ADT7316ARQZ?

For technical support, including ADT7316ARQZ datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADT7316ARQZ requirements.

6.How does Aetrix verify that ADT7316ARQZ is sourced from the original manufacturer or authorized distributors?

All ADT7316ARQZ 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 ADT7316ARQZ meets industry standards.

7.What is the process for return or replacement of ADT7316ARQZ?

All ADT7316ARQZ units undergo pre-shipment inspection (PSI). If there is an issue with ADT7316ARQZ, 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 ADT7316ARQZ part is unused and in its original packaging.

Return procedure for ADT7316ARQZ:

1.Submit a request within 90 days.

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

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