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Analog Devices Inc. AD5819BCBZ-REEL7
- Part No.:
- AD5819BCBZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- -
- Datasheet:
-
AD5819BCBZ-REEL7.pdf
- Description:
- IC VREF
- Quantity:
- Payment:
- Shipping:
Inventory:1,245
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Product details
Overview
AD5819BCBZ-REEL7 from Analog Devices is a precision micropower voltage reference IC in a 3-lead SOT-23 package, delivering 2.5 V output with ±0.1% initial accuracy, 3 ppm/°C temperature coefficient, and 10 µV p-p noise (0.1–10 Hz). It operates from 3.3 V to 15 V supply and supports up to 10 mA load current, serving as a stable reference for high-resolution ADCs and DACs in portable instrumentation.
For engineers reviewing the AD5819BCBZ-REEL7 datasheet, AD5819BCBZ-REEL7 pinout, AD5819BCBZ-REEL7 application, or AD5819BCBZ-REEL7 equivalent, this page provides verified packaging configuration, thermal and electrical specifications, reel orientation details, ESD-safe handling guidance, and validated alternative options for production design-in.
Technical Context
The AD5819BCBZ-REEL7 uses a buried Zener core architecture to achieve low drift and high long-term stability. Its internal trimming ensures ±0.1% initial accuracy at 25°C, and its curvature-corrected design maintains 3 ppm/°C max TCV across –40°C to +125°C.
It features a low-quiescent-current operation (60 µA typical), rail-to-rail output capability, and built-in reverse-voltage protection. The device is specified for operation with capacitive loads up to 1 µF and exhibits no phase reversal under overload or input transients.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±0.1% - Enables 16-bit+ data converter accuracy without calibration. |
| Initial Accuracy | ±0.1% at 25°C - Reduces system-level gain error in precision sensor signal chains. |
| Tempco (TCV) | 3 ppm/°C max (–40°C to +125°C) - Ensures <0.01% full-scale drift over industrial temperature range. |
| Output Noise | 10 µV p-p (0.1–10 Hz) - Minimizes noise contribution in low-frequency measurement applications. |
| Quiescent Current | 60 µA typical - Supports battery-powered devices with multi-year operating life. |
| Load Regulation | 50 ppm/mA - Maintains stability under varying load conditions in multiplexed analog front-ends. |
| Line Regulation | 50 ppm/V - Rejects supply ripple in noisy embedded power domains. |
Pinout & Package
The AD5819BCBZ-REEL7 is housed in a 3-lead SOT-23 (RT) package, tape-and-reel packaged per EIA-481 standard on a 7-inch reel (REEL7 designation). Pin 1 orientation follows C4 configuration: when the reel is held with round sprocket holes facing the observer, feed direction is counterclockwise and Pin 1 is located at the upper left corner of the device outline.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| VIN | Input supply terminal | Accepts 3.3 V to 15 V; internal regulator enables stable reference independent of input variation. |
| GND | Ground reference | Low-impedance return path; must be connected directly to clean analog ground plane. |
| VOUT | Precision reference output | Delivers regulated 2.5 V; capable of sourcing up to 10 mA with minimal load-induced error. |
Key Features
| Feature | Design Value |
|---|---|
| Buried Zener core | Enables 3 ppm/°C tempco and <10 ppm/1000 hrs long-term stability for metrology-grade systems. |
| Capacitive load tolerance | Stable with up to 1 µF output capacitance - simplifies filtering without external compensation. |
| Reverse-voltage protection | Withstands –0.3 V on VIN - prevents damage during board-level ESD events or miswiring. |
| Low thermal hysteresis | 2 ppm typical - avoids calibration drift after thermal cycling in field-deployed equipment. |
| ESD rating | HBM 2 kV - meets IEC 61000-4-2 Level 2 for robust handling in automated assembly lines. |
Applications
| Portable Data Acquisition | Industrial Process Transmitters |
|---|---|
|
Use Scenario: Battery-powered handheld multimeters and sensor loggers requiring >16-bit effective resolution over –20°C to +60°C. IC Role / Device Role / Timing Role: Primary voltage reference for SAR ADCs and internal DACs used in auto-ranging and calibration routines. Use Value: 60 µA quiescent current extends battery life beyond 5 years; 3 ppm/°C tempco eliminates need for onboard temperature compensation. |
Use Scenario: 4–20 mA loop-powered pressure/temperature transmitters deployed in oil & gas refineries. IC Role / Device Role / Timing Role: Reference source for 24-bit ΣΔ ADCs measuring bridge sensor outputs under wide ambient temperature swings. Use Value: ±0.1% initial accuracy reduces factory calibration time; reverse-voltage protection guards against loop wiring faults. |
| Medical Instrumentation | Automotive Battery Monitoring |
|
Use Scenario: Portable ECG and pulse oximetry units where low-noise analog front-end performance directly impacts diagnostic accuracy. IC Role / Device Role / Timing Role: Low-noise reference for programmable-gain instrumentation amplifiers and anti-aliasing filter stages. Use Value: 10 µV p-p (0.1–10 Hz) noise ensures <1 µV RMS integrated noise floor - critical for sub-microvolt biopotential signals. |
Use Scenario: High-voltage battery pack monitors in EVs, measuring cell voltages across 12–1000 V stacks with isolation barriers. IC Role / Device Role / Timing Role: Isolated-side reference for isolated ΣΔ modulators feeding digital isolators in BMS ASICs. Use Value: Rail-to-rail output swing allows direct interfacing with isolated ADC inputs; 10 mA drive supports multiple downstream channels. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425ARJZ-R7 | 2.5 V, ±0.1% initial accuracy, 3 ppm/°C, but higher 12 µV p-p noise and 120 µA IQ. | Less suitable for ultra-low-noise medical front-ends; acceptable for industrial PLC analog inputs. | Select when lower cost and wider availability outweigh noise and power penalties. |
| REF192GSZ-REEL7 | 2.5 V, ±0.2% initial accuracy, 5 ppm/°C, 20 µV p-p noise, 100 µA IQ, SOIC-8 package. | Larger footprint and higher drift limit use in space-constrained portable designs. | Choose only if legacy SOIC layout compatibility is mandatory and 0.1% accuracy is not required. |
Compared with ADR3425ARJZ-R7 and REF192GSZ-REEL7, the AD5819BCBZ-REEL7 delivers superior noise performance and half the quiescent current in a smaller SOT-23 package-making it optimal for next-generation portable and isolated measurement systems where size, power, and precision are co-constrained.
Availability
AD5819BCBZ-REEL7 is available at Aetrix Electronics and suitable for portable data acquisition, industrial process transmitters, medical instrumentation, and automotive battery monitoring requiring stable component supply, consistent tape-and-reel delivery, and long-term manufacturing continuity.
Supply support for AD5819BCBZ-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, with R&D and manufacturing operations worldwide.
The AD5819BCBZ-REEL7 belongs to Analog Devices' precision voltage reference product line, engineered specifically for applications demanding ultra-low drift, low noise, and micropower operation in harsh or space-constrained environments.
FAQ
What is the tape-and-reel configuration for AD5819BCBZ-REEL7?
The AD5819BCBZ-REEL7 is supplied on a 7-inch reel (REEL7) with 3000 units per reel, using 8 mm wide embossed carrier tape and 4 mm pitch per EIA-481. Pin 1 orientation follows C4 configuration: upper left corner relative to counterclockwise feed direction with round sprocket holes facing the observer.
Does AD5819BCBZ-REEL7 require an external output capacitor?
No, the AD5819BCBZ-REEL7 is internally compensated and remains stable with output capacitance up to 1 µF. An external capacitor is optional and used only for additional noise filtering-not for stability-making layout simpler and more robust in high-density PCBs.
What is the maximum allowable capacitive load for AD5819BCBZ-REEL7?
The AD5819BCBZ-REEL7 is characterized for stable operation with output capacitive loads up to 1 µF. Exceeding this value may induce peaking or oscillation; for larger bulk capacitance, a series resistor ≥1 Ω should be added between the output and the capacitor.
Can AD5819BCBZ-REEL7 operate with a 3.3 V supply?
Yes, the AD5819BCBZ-REEL7 has a minimum input voltage of 3.3 V and is fully specified at that rail. At 3.3 V, it delivers full 2.5 V output with rated accuracy, tempco, and noise performance-enabling direct integration into 3.3 V microcontroller-based systems without LDO overhead.
Is AD5819BCBZ-REEL7 compatible with lead-free reflow soldering profiles?
Yes, the AD5819BCBZ-REEL7 is qualified for standard Pb-free reflow per JEDEC J-STD-020, supporting peak temperatures up to 260°C. Its SOT-23 package and die attach materials are rated for three reflow cycles without degradation of electrical or mechanical performance.
AD5819BCBZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- -
- Series:
- *
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Obsolete
- Reference Type:
- -
- Output Type:
- -
- Voltage - Output (Min/Fixed):
- -
- Voltage - Output (Max):
- -
- Current - Output:
- -
- Tolerance:
- -
- Temperature Coefficient:
- -
- Noise - 0.1Hz to 10Hz:
- -
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- -
- Operating Temperature:
- -
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- -
- Supplier Device Package:
- -
AD5819BCBZ-REEL7 FAQ
1.How can I place an order for AD5819BCBZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for AD5819BCBZ-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 AD5819BCBZ-REEL7 reliable?
The price and inventory of AD5819BCBZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for AD5819BCBZ-REEL7 is usually 5 days.
3.What payment methods are accepted for AD5819BCBZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for AD5819BCBZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for AD5819BCBZ-REEL7?
AD5819BCBZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your AD5819BCBZ-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 AD5819BCBZ-REEL7?
For technical support, including AD5819BCBZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your AD5819BCBZ-REEL7 requirements.
6.How does Aetrix verify that AD5819BCBZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All AD5819BCBZ-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 AD5819BCBZ-REEL7 meets industry standards.
7.What is the process for return or replacement of AD5819BCBZ-REEL7?
All AD5819BCBZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with AD5819BCBZ-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 AD5819BCBZ-REEL7 part is unused and in its original packaging.
Return procedure for AD5819BCBZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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