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Analog Devices Inc. ADT7519ARQZ-REEL
- Part No.:
- ADT7519ARQZ-REEL
- Manufacturer:
- Analog Devices Inc.
- Category:
- Thermal Management
- Package:
- 16-SSOP (0.154", 3.90mm Width)
- Datasheet:
-
ADT7519ARQZ-REEL.pdf
- Description:
- IC SENSOR TEMP QD ADC/DAC 16QSOP
- Quantity:
- Payment:
- Shipping:
Inventory:1,904
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Product details
Overview
ADT7519ARQZ-REEL from Analog Devices is an 8-bit quad DAC + 10-bit 4-channel ADC + 10-bit temperature sensor IC in a single 16-lead QSOP package. It delivers buffered voltage outputs (0 V to VREF), ±0.5°C typical temperature accuracy over −40°C to +120°C, and operates from 2.7 V to 5.5 V. Used in smart battery chargers and telecom systems for closed-loop thermal and analog signal conditioning.
For engineers reviewing the ADT7519ARQZ-REEL datasheet, ADT7519ARQZ-REEL pinout, ADT7519ARQZ-REEL application, or ADT7519ARQZ-REEL equivalent, key selection criteria include its 8-bit DAC resolution, simultaneous LDAC update capability, dual SPI/I²C interface support, internal 2.28 V reference, and guaranteed monotonicity across all codes.
Technical Context
The ADT7519ARQZ-REEL integrates three core subsystems: a 10-bit successive-approximation ADC with four single-ended inputs (AIN1–AIN4), a 10-bit bandgap-based temperature-to-digital converter, and four independent 8-bit string DACs with rail-to-rail output buffers. All DACs share a common buffered reference input (VREF-IN) and support simultaneous update via LDAC or software command.
It supports two serial interfaces: a 4-wire SPI-compatible mode (CS/SCLK/SDA/DOUT) and a 2-wire SMBus/I²C mode (SCL/SDA), with programmable I²C address via ADD pin and SMBus packet error checking (PEC). Power-down current is <10 μA, and power-on reset forces all DAC outputs to 0 V until first valid write.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| DAC Resolution | 8 bits - defines 256 discrete output levels per channel; sufficient for coarse thermal setpoint control or bias adjustment. |
| ADC Resolution | 10 bits - provides 1,024 quantization steps across 0 V to 2.28 V input range; enables ~2.2 mV LSB for precision analog monitoring. |
| Temp Sensor Accuracy | ±0.5°C typ (0°C to +85°C) - ensures reliable board-level thermal feedback without external calibration. |
| Supply Range | 2.7 V to 5.5 V - supports direct connection to common logic rails (3.3 V or 5 V) without level-shifting. |
| Interface Support | SPI and I²C - allows integration into both microcontroller-based (SPI) and system-management (I²C/SMBus) architectures. |
| Package | 16-lead QSOP - surface-mount footprint compatible with automated assembly; 0.15 mm pitch, 3.9 mm × 4.9 mm body. |
| Power-Down Current | <10 μA - enables ultra-low-power operation during idle cycles in battery-powered instruments. |
Pinout & Package
ADT7519ARQZ-REEL is housed in a 16-lead QSOP (Quarter Size Outline Package) with 0.635 mm lead pitch and exposed pad not present. The package is RoHS-compliant and rated for −40°C to +120°C operating temperature.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VOUT-A (Pin 2) | DAC A buffered analog output | Rail-to-rail voltage source (0 V to VREF); drives loads up to 25 mA; used for thermal setpoint or bias generation. |
| VOUT-B (Pin 1) | DAC B buffered analog output | Independent of VOUT-A; supports simultaneous update with other DACs via LDAC pin or register command. |
| VOUT-C (Pin 16) | DAC C buffered analog output | Configurable output range (0 V to VREF); monotonic by design; settling time ≤8 μs (1/4 to 3/4 scale). |
| VOUT-D (Pin 15) | DAC D buffered analog output | Same electrical specs as VOUT-A/B/C; enables 4-channel analog control from single IC. |
| VREF-IN (Pin 3) | Reference input for all DACs | Buffered high-impedance input (≥10 MΩ); accepts 1 V to VDD; internal 2.28 V reference selectable via configuration. |
| CS (Pin 4) | SPI frame synchronization | Active-low enable for SPI mode; must be held high when using I²C interface to avoid bus contention. |
| GND (Pin 5) | Analog/digital ground reference | Single ground plane required; decoupling capacitor (0.1 μF) recommended near VDD/GND pins. |
| VDD (Pin 6) | Positive supply | 2.7 V to 5.5 V operation; supplies all analog and digital circuitry; 50 ms settling time specified. |
| D+/AIN1 (Pin 7) | External temp sensor (+) / ADC input | Dual-function pin: connects to emitter of external PNP transistor (e.g., 2N3906) or serves as AIN1 analog input. |
| D–/AIN2 (Pin 8) | External temp sensor (−) / ADC input | Completes external diode junction sensing path; also functions as second ADC channel with same 0–2.28 V range. |
| LDAC/AIN3 (Pin 9) | DAC load control / ADC input | Falling-edge-triggered LDAC pulse (≥20 ns) updates all DAC registers simultaneously; also serves as AIN3. |
| INT/INT (Pin 10) | Over-limit interrupt output | Open-drain, active-low by default; asserts when internal temp, VDD, or AIN thresholds are exceeded. |
| DOUT/ADD (Pin 11) | SPI data out / I²C address select | In SPI mode: serial data output (falling-edge clocked); in I²C mode: sets device address (low/float/high). |
| SDA/DIN (Pin 12) | I²C bidirectional / SPI data in | Open-drain; requires pull-up resistor; handles both I²C data and SPI serial input on rising SCLK edge. |
| SCL/SCLK (Pin 13) | I²C clock / SPI clock | Shared clock line; supports fast-mode I²C (400 kHz) and SPI up to 10 MHz (per timing specs). |
| AIN4 (Pin 14) | Fourth ADC input | Single-ended analog input (0 V to 2.28 V or 0 V to VDD); completes 4-channel ADC capability. |
Key Features
| Feature | Design Value |
|---|---|
| Quad 8-bit DAC with rail-to-rail buffers | Enables independent analog control of four subsystems (e.g., fan speed, LED bias, sensor excitation, reference trim) from one IC. |
| Simultaneous DAC update via LDAC | Eliminates output skew between channels during coordinated control actions-critical for multi-actuator thermal regulation. |
| Internal 2.28 V reference with 80 ppm/°C TC | Reduces BOM count by removing external reference; stable enough for 0.5°C temperature accuracy over full industrial range. |
| 10-bit 4-channel ADC with DC bandwidth | Supports monitoring of supply rails (VDD), external sensors, and auxiliary voltages without external signal conditioning. |
| Integrated 10-bit temperature sensor (±0.5°C typ) | Provides on-chip thermal awareness for self-protection, compensation, or system health reporting without external components. |
| SPI and I²C dual-interface compatibility | Allows reuse across platforms: SPI for MCU firmware simplicity, I²C for PMBus/SMBus system management integration. |
Applications
| Smart Battery Charger | Telecom Line Card |
|---|---|
|
Use Scenario: Regulating charge voltage/current while monitoring cell temperature and pack voltage. IC Role / Device Role / Timing Role: ADT7519ARQZ-REEL acts as analog front-end and thermal manager-measuring battery temp (internal sensor), pack voltage (AIN4), and driving charge controller bias (VOUT-A/B). Use Value: Single-chip integration reduces layout area and eliminates calibration drift between separate ADC/DAC/temp ICs. |
Use Scenario: Monitoring power supply rails and heatsink temperature on high-density line cards. IC Role / Device Role / Timing Role: ADT7519ARQZ-REEL performs periodic round-robin measurements of VDD, internal die temp, AIN1 (−12 V rail), and AIN2 (heatsink thermistor). Use Value: Built-in 10-bit ADC and temp sensor eliminate need for external signal chain, lowering cost and failure points. |
| Industrial PC Power Management | Domestic Appliance Control Board |
|
Use Scenario: Dynamic CPU voltage scaling and thermal throttling based on real-time die temperature. IC Role / Device Role / Timing Role: ADT7519ARQZ-REEL reads internal temperature and VDD, then adjusts VRM reference (via VOUT-C) and triggers INT interrupt on overtemp. Use Value: Hardware-based thermal response (<10 ms latency) avoids software polling delays and improves system reliability. |
Use Scenario: Controlling heating element duty cycle and monitoring oven cavity temperature in smart ovens. IC Role / Device Role / Timing Role: ADT7519ARQZ-REEL digitizes NTC thermistor (D+/D−), measures AC rectified voltage (AIN3), and drives triac gate bias (VOUT-D). Use Value: Integrated 4-channel ADC and quad DAC replace discrete op-amp/comparator networks, reducing component count by ≥7 parts. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar mixed-signal monitoring and control applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADT7517ARQZ-REEL | 10-bit DACs instead of 8-bit; higher relative accuracy (±0.5 LSB vs. ±1 LSB typ); same ADC/temp specs and pinout. | Better suited for applications requiring finer analog control resolution (e.g., precision sensor calibration), but consumes more code space for DAC writes. | Select ADT7517ARQZ-REEL if 10-bit DAC granularity is needed; ADT7519ARQZ-REEL remains optimal for cost-sensitive thermal actuation. |
| ADT7516ARQZ-REEL | 12-bit DACs; ±2 LSB relative accuracy; identical ADC, temp sensor, interface, and package; shares same functional block diagram. | Targeted at high-accuracy closed-loop systems (e.g., laser diode bias control), where 12-bit resolution justifies higher cost and larger firmware overhead. | Choose ADT7516ARQZ-REEL only when sub-1 mV DAC step size is mandatory; ADT7519ARQZ-REEL offers best value for general-purpose thermal/analog control. |
Compared with ADT7517ARQZ-REEL and ADT7516ARQZ-REEL, the ADT7519ARQZ-REEL delivers optimized trade-offs: lowest DAC code memory footprint, minimal power consumption in normal mode (3 mA @ 3.3 V), and sufficient resolution for thermal setpoint and bias generation-making it ideal for cost-constrained, battery-aware, or high-volume consumer/industrial designs.
Availability
ADT7519ARQZ-REEL is available at Aetrix Electronics and suitable for smart battery chargers, telecom line cards, and domestic appliance control boards requiring stable component supply, long-term lifecycle support, and RoHS-compliant packaging.
Supply support for ADT7519ARQZ-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.
The ADT7519ARQZ-REEL belongs to the ADT7516/ADT7517/ADT7519 family-designed specifically for integrated thermal monitoring and multi-channel analog control in space-constrained, low-power systems.
FAQ
What is the DAC resolution of the ADT7519ARQZ-REEL?
The ADT7519ARQZ-REEL features four independent 8-bit DACs, providing 256 discrete output levels per channel. This resolution is confirmed in Table 1 of the Rev. B datasheet under "DAC DC PERFORMANCE" for the ADT7519 variant. Each DAC output is buffered and rail-to-rail, with guaranteed monotonicity across all codes.
Does the ADT7519ARQZ-REEL support both SPI and I²C interfaces?
Yes, the ADT7519ARQZ-REEL supports both interfaces: a 4-wire SPI-compatible mode (using CS, SCLK, SDI, SDO) and a 2-wire SMBus/I²C mode (using SCL and SDA). Pin 11 (DOUT/ADD) configures the I²C address, and the device complies with fast-mode I²C (400 kHz) and standard SPI timing requirements per Figures 2 and 3.
What is the temperature accuracy specification for the ADT7519ARQZ-REEL?
The ADT7519ARQZ-REEL achieves ±0.5°C typical accuracy for internal temperature measurement over 0°C to +85°C (Table 1, Thermal Characteristics). At full range (−40°C to +120°C), accuracy degrades to ±2°C typical. External temperature sensing (using D+/D− pins) has ±3°C typical accuracy over the same extended range.
Can the ADT7519ARQZ-REEL operate from a 3.3 V supply?
Yes, the ADT7519ARQZ-REEL operates from 2.7 V to 5.5 V, fully supporting 3.3 V nominal supply. Its IDD in normal mode is 3 mA at VDD = 3.3 V (Table 1, Power Requirements), and internal reference voltage remains stable at 2.28 V ±0.0138 V across this rail. Power-down current is <10 μA.
Is the ADT7519ARQZ-REEL pin-compatible with other members of the ADT7516/ADT7517/ADT7519 family?
Yes, the ADT7519ARQZ-REEL shares identical pinout, package (16-lead QSOP), and register map with ADT7516ARQZ-REEL and ADT7517ARQZ-REEL. All three variants are hardware-compatible and differ only in DAC resolution and associated DC performance specs-enabling drop-in replacement during design iteration or cost optimization.
ADT7519ARQZ-REEL 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, External Sensor
- Accuracy:
- ±3°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
ADT7519ARQZ-REEL FAQ
1.How can I place an order for ADT7519ARQZ-REEL through Aetrix?
Please submit a Request for Quotation (RFQ) for ADT7519ARQZ-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 ADT7519ARQZ-REEL reliable?
The price and inventory of ADT7519ARQZ-REEL are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADT7519ARQZ-REEL is usually 5 days.
3.What payment methods are accepted for ADT7519ARQZ-REEL?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADT7519ARQZ-REEL transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADT7519ARQZ-REEL?
ADT7519ARQZ-REEL orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADT7519ARQZ-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 ADT7519ARQZ-REEL?
For technical support, including ADT7519ARQZ-REEL datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADT7519ARQZ-REEL requirements.
6.How does Aetrix verify that ADT7519ARQZ-REEL is sourced from the original manufacturer or authorized distributors?
All ADT7519ARQZ-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 ADT7519ARQZ-REEL meets industry standards.
7.What is the process for return or replacement of ADT7519ARQZ-REEL?
All ADT7519ARQZ-REEL units undergo pre-shipment inspection (PSI). If there is an issue with ADT7519ARQZ-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 ADT7519ARQZ-REEL part is unused and in its original packaging.
Return procedure for ADT7519ARQZ-REEL:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADT7519ARQZ-REEL Tags
-
EMC2101-ACZL-TR
Microchip Technology
-
MCP9844T-BE/MNY
Microchip Technology
-
EMC2101-R-ACZL-TR
Microchip Technology
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MCP98244T-BE/MNY
Microchip Technology
-
TC670ECHTR
Microchip Technology
-
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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