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Analog Devices Inc. ADR03BUJZ-REEL7
- Part No.:
- ADR03BUJZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
ADR03BUJZ-REEL7.pdf
- Description:
- IC VREF SERIES 0.1% TSOT5
- Quantity:
- Payment:
- Shipping:
Inventory:7,950
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Product details
Overview
ADR03BUJZ-REEL7 from Analog Devices is a precision 2.5 V band gap voltage reference in a 5-lead TSOT package, featuring ±0.2% initial accuracy, 9 ppm/°C max temperature coefficient (B grade), 5 µVp-p (0.1 Hz to 10 Hz) low noise output, and operation from 4.5 V to 36 V supply. It delivers stable reference voltage for high-resolution ADCs and precision instrumentation requiring tight DC accuracy over −40°C to +125°C.
For engineers reviewing the ADR03BUJZ-REEL7 datasheet, ADR03BUJZ-REEL7 pinout, ADR03BUJZ-REEL7 application, or ADR03BUJZ-REEL7 equivalent, this page provides verified specifications, validated pin functions, confirmed thermal and load regulation behavior, and real-world design context for embedded sensor signal chains and industrial data acquisition systems.
Technical Context
The ADR03BUJZ-REEL7 implements a curvature-corrected band gap core with internal trimming, enabling 2.5 V output stability across wide input voltage (4.5 V–36 V) and temperature (−40°C to +125°C). Its B-grade TCVO of 1–3 ppm/°C (8-lead SOIC) or 9 ppm/°C (TSOT/SC70) reflects process-matched compensation optimized for compact packages.
It integrates dedicated TEMP and TRIM pins: TEMP provides 550 mV baseline with 1.96 mV/°C sensitivity for on-chip temperature monitoring; TRIM allows ±0.5% output adjustment via external resistor network. No external capacitor is required for stability.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500 V ±2.5 mV (B grade); enables direct interface with 2.5 V ADC references and rail-to-rail op-amp stages. |
| Initial Accuracy | ±0.2% (±5 mV); eliminates need for system-level calibration in medium-precision measurement nodes. |
| Temp Coefficient | 9 ppm/°C max (TSOT package, −40°C to +125°C); ensures ≤225 ppm drift over full range-equivalent to ±0.56 mV error. |
| Voltage Noise | 5 µVp-p, 0.1 Hz–10 Hz; supports 18-bit+ SAR ADCs without noise floor degradation. |
| Supply Range | 4.5 V to 36 V; accommodates unregulated 5 V, 12 V, and 24 V industrial rails without pre-regulation. |
| Quiescent Current | 0.65–1.0 mA; enables low-power battery-operated sensor transmitters with >10-year runtime at 10 µA sleep current. |
| Load Regulation | 25–70 ppm/mA; maintains <±0.175 mV error from 0–10 mA load-sufficient for driving ADC refs and op-amp inputs. |
Pinout & Package
ADR03BUJZ-REEL7 uses a 5-lead TSOT (UJ-5) surface-mount package (2.9 mm × 1.6 mm × 0.8 mm), optimized for space-constrained PCB layouts. Thermal resistance θJA = 230°C/W reflects standard 2-layer board mounting.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - VIN | Positive supply input | Accepts 4.5 V–36 V; dropout voltage remains ≤2 V up to 10 mA load. |
| 2 - GND | Ground reference | Common return for output, TEMP, and TRIM; requires low-impedance connection to minimize noise coupling. |
| 3 - VOUT | Precision reference output | 2.5 V regulated output; capable of sourcing/sinking ±10 mA with <100 ppm line/load regulation. |
| 4 - TEMP | Temperature sensor output | Provides 550 mV @ 25°C with 1.96 mV/°C slope; used for die temperature monitoring or ambient compensation. |
| 5 - TRIM | Output voltage adjustment | Allows fine-tuning ±0.5% via external resistor divider; enables end-of-line calibration without laser trimming. |
Key Features
| Feature | Design Value |
|---|---|
| Ultracompact TSOT package | 2.9 mm × 1.6 mm footprint saves >60% board area vs. SOIC-8; ideal for portable and modular sensor nodes. |
| No external capacitor required | Internally compensated for stability with any capacitive load; eliminates BOM cost and layout risk of external COUT. |
| Dual-function TEMP pin | Delivers calibrated analog temperature reading (550 mV ±10 mV @ 25°C) without adding discrete sensors or ADC channels. |
| TRIM pin for field calibration | Supports post-assembly output adjustment using two resistors; reduces test time and scrap in high-volume production. |
| Extended temperature range | Specified from −40°C to +125°C; qualified for under-hood automotive and industrial control cabinet deployments. |
Applications
| Industrial Process Monitoring | Precision Data Acquisition |
|---|---|
Use Scenario: 4–20 mA loop-powered transmitter measuring pressure or flow in chemical plants. IC Role / Device Role / Timing Role: Provides stable 2.5 V reference for DAC output stage and ADC input scaling. Use Value: Enables ±0.1% total measurement accuracy over −40°C to +85°C ambient, meeting IEC 61000-6-2 immunity requirements. |
Use Scenario: Portable handheld multimeter with 6½-digit resolution. IC Role / Device Role / Timing Role: Supplies reference voltage to dual-slope integrator and auto-zero amplifier. Use Value: 5 µVp-p low-frequency noise prevents digit flicker; 9 ppm/°C TC ensures <0.005% reading drift between calibrations. |
| Automotive Battery Management | PCMCIA Card Power Regulation |
Use Scenario: Onboard diagnostics module monitoring 12 V lead-acid battery health during engine start-stop cycles. IC Role / Device Role / Timing Role: References ADC measuring battery voltage and internal resistance. Use Value: Operates down to 4.5 V input during cranking; 125°C rating survives under-dash placement near HVAC ducts. |
Use Scenario: Legacy PCMCIA memory or modem card requiring precise 3.3 V or 5 V rail generation. IC Role / Device Role / Timing Role: Serves as feedback reference for low-noise LDO controlling VCC_IO. Use Value: 0.65 mA quiescent current extends host laptop battery life; TSOT package fits narrow card edge constraints. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR03ARMZ-R7 | Same 2.5 V output and B-grade specs, but in 8-lead SOIC (R-8) package with θJA = 130°C/W and 3 ppm/°C TCVO (SOIC). | Better thermal performance and lower TCVO, but 3× larger footprint; preferred for lab equipment or non-space-constrained designs. | Select ADR03ARMZ-R7 when board area permits and sub-3 ppm/°C drift is required over temperature. |
| REF3025AIDBZR | 2.5 V, ±0.2% initial accuracy, 50 ppm/°C max TCVO, 3.6 V–18 V supply, SOT23-3 package (no TEMP/TRIM pins). | Lacks TEMP and TRIM functionality; higher TCVO limits use in wide-temperature industrial environments. | Choose REF3025AIDBZR only for cost-sensitive, single-supply 3.3 V systems where temperature monitoring is unnecessary. |
Compared with ADR03ARMZ-R7, ADR03BUJZ-REEL7 trades 6 ppm/°C higher tempco for 60% smaller size and integrated temperature sensing; versus REF3025AIDBZR, it adds critical calibration and thermal awareness at modest cost premium-making it optimal for ruggedized, space-limited measurement nodes.
Availability
ADR03BUJZ-REEL7 is available at Aetrix Electronics and suitable for industrial process monitoring, precision data acquisition, and automotive battery management requiring stable component supply across extended temperature ranges and long product lifecycles.
Supply support for ADR03BUJZ-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 ADR03 series belongs to Analog Devices' precision voltage reference product line, engineered specifically for high-accuracy, low-drift applications in industrial, automotive, and instrumentation systems where long-term stability and thermal robustness are critical.
FAQ
What is the maximum operating temperature for ADR03BUJZ-REEL7?
The ADR03BUJZ-REEL7 is fully specified from −40°C to +125°C ambient temperature. Its internal band gap core and packaging are qualified for continuous operation at +125°C, with thermal shutdown not implemented-reliability is maintained through controlled power dissipation and PCB thermal design per θJA = 230°C/W (TSOT).
Does ADR03BUJZ-REEL7 require an external output capacitor?
No, ADR03BUJZ-REEL7 is internally compensated and stable with any capacitive load, including zero capacitance. Unlike many references, it does not require an external output capacitor for phase margin or noise filtering-simplifying layout and reducing BOM count while maintaining 5 µVp-p noise performance.
How is the TEMP pin used in ADR03BUJZ-REEL7?
The TEMP pin on ADR03BUJZ-REEL7 outputs 550 mV at 25°C with a linear 1.96 mV/°C slope, enabling direct die temperature measurement. It requires no external components for basic readout; connecting to an ADC input channel allows real-time thermal compensation of system gain or offset errors without adding discrete sensors.
Can ADR03BUJZ-REEL7 drive a 10 kΩ load directly?
Yes, ADR03BUJZ-REEL7 can drive a 10 kΩ load (100 µA) with negligible error: its load regulation is specified at 25–70 ppm/mA, so 100 µA induces <0.007 mV shift-well within ±2.5 mV initial accuracy. For heavier loads up to 10 mA, output voltage deviation remains <±0.175 mV.
What is the purpose of the TRIM pin on ADR03BUJZ-REEL7?
The TRIM pin on ADR03BUJZ-REEL7 allows ±0.5% adjustment of the 2.5 V output using an external resistor divider. This enables factory or field calibration to compensate for system-level tolerances-such as DAC gain error or PCB trace resistance-without requiring laser trimming or higher-grade variants.
ADR03BUJZ-REEL7 Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc.
- Package/Case:
- SOT-23-5 Thin, TSOT-23-5
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 10 mA
- Tolerance:
- ±0.1%
- Temperature Coefficient:
- 9ppm/°C
- Noise - 0.1Hz to 10Hz:
- 6µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 4.5V ~ 36V
- Current - Supply:
- 1mA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
ADR03BUJZ-REEL7 FAQ
1.How can I place an order for ADR03BUJZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR03BUJZ-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 ADR03BUJZ-REEL7 reliable?
The price and inventory of ADR03BUJZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR03BUJZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR03BUJZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR03BUJZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR03BUJZ-REEL7?
ADR03BUJZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR03BUJZ-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 ADR03BUJZ-REEL7?
For technical support, including ADR03BUJZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR03BUJZ-REEL7 requirements.
6.How does Aetrix verify that ADR03BUJZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR03BUJZ-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 ADR03BUJZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR03BUJZ-REEL7?
All ADR03BUJZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR03BUJZ-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 ADR03BUJZ-REEL7 part is unused and in its original packaging.
Return procedure for ADR03BUJZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADR03BUJZ-REEL7 Tags
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