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Analog Devices Inc. ADR366BUJZ-REEL7
- Part No.:
- ADR366BUJZ-REEL7
- Manufacturer:
- Analog Devices Inc.
- Category:
- Voltage Reference
- Package:
- SOT-23-5 Thin, TSOT-23-5
- Datasheet:
-
ADR366BUJZ-REEL7.pdf
- Description:
- IC VREF SERIES 0.13% TSOT5
- Quantity:
- Payment:
- Shipping:
Inventory:5,448
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Product details
Overview
ADR366BUJZ-REEL7 from Analog Devices is a precision 3.300 V band gap voltage reference IC with sink/source capability, 9 ppm/°C temperature coefficient (B grade), ±4 mV initial accuracy, and ultralow 9.3 µVp-p (0.1 Hz to 10 Hz) output noise. It operates from a 3.6 V minimum input supply with only 300 mV dropout and delivers ±1 mA output current, making it ideal for high-accuracy ADC/DAC biasing in portable medical instruments.
For engineers reviewing the ADR366BUJZ-REEL7 datasheet, ADR366BUJZ-REEL7 pinout, ADR366BUJZ-REEL7 application, or ADR366BUJZ-REEL7 equivalent, key selection criteria include its TSOT-5 package footprint, automotive-grade temperature range (−40°C to +125°C), no-external-capacitor operation, and guaranteed load regulation of 0.6 mV/mA over full temperature range.
Technical Context
The ADR366BUJZ-REEL7 implements a curvature-corrected band gap architecture where the reference node is referenced to VOUT-not ground-enabling superior ground noise rejection. Its proprietary trimming and resistor ratio design achieves 9 ppm/°C drift across −40°C to +125°C without external compensation.
It features micropower operation (150–190 µA quiescent current), low dropout (300 mV), and dual-direction output drive (±1 mA), supporting both sourcing and sinking loads in single-supply systems. No input or output capacitor is required for stability, simplifying layout while maintaining 25 µs turn-on settling time.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.300 V nominal; B grade guarantees 3.296 V to 3.304 V at 25°C - enables precise 12-/16-bit ADC reference without calibration. |
| Temp Coefficient | 9 ppm/°C (B grade, −40°C to +125°C) - ensures ≤ ±1.19 mV total drift over full industrial range. |
| Initial Accuracy | ±4 mV (B grade) - supports <0.125% full-scale error in 3.3 V-referenced data acquisition systems. |
| Voltage Noise | 9.3 µVp-p (0.1 Hz to 10 Hz) - minimizes quantization uncertainty in high-resolution, low-frequency measurements. |
| Dropout Voltage | 300 mV - allows operation from 3.6 V supply with 3.3 V output, compatible with Li-ion battery discharge profiles. |
| Quiescent Current | 190 µA max - enables >1-year battery life in 10 µA sleep-mode portable instruments. |
| Output Current | +5 mA sourcing / −1 mA sinking - drives ADC reference inputs and small logic loads without buffer amplifiers. |
Pinout & Package
ADR366BUJZ-REEL7 is housed in a 5-lead TSOT (UJ-5) package, 1.6 mm × 1.6 mm × 0.55 mm, with exposed pad for thermal performance (θJA = 230°C/W). Pin 1 is Not Internally Connected (NIC); pins 2–5 are functional.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| NIC (Pin 1) | Not Internally Connected | No internal bond wire; must be left floating or grounded per PCB layout best practice - no electrical function. |
| GND (Pin 2) | Reference Ground | Primary return path for internal band gap core; requires low-impedance connection to system ground plane. |
| VIN (Pin 3) | Input Supply | Accepts 3.6 V to 15 V; minimum headroom 300 mV above VOUT - enables direct use with buck regulators or battery rails. |
| VOUT (Pin 4) | Stable Reference Output | Delivers regulated 3.300 V; low impedance (<1 Ω below 1 kHz) supports fast load transients without external caps. |
| TRIM (Pin 5) | Output Voltage Adjustment | Allows fine-tuning via external resistor divider; typical trim range ±0.5% - used for system-level calibration. |
Key Features
| Feature | Design Value |
|---|---|
| Ultralow 0.1 Hz–10 Hz noise | 9.3 µVp-p - directly reduces RMS noise floor in precision weigh scales and ECG front-ends. |
| No external capacitor required | Stable with zero input/output capacitance - eliminates two passive components, saves 2.5 mm² board area, reduces BOM cost. |
| Low dropout (300 mV) | Enables operation from 3.6 V supply - supports single-cell Li-ion (3.0–4.2 V) and 3.3 V LDO-fed systems without headroom loss. |
| Sink/source capability | ±1 mA output drive - interfaces directly with SAR ADC reference inputs and op-amp bias networks without external buffers. |
| Automotive-qualified temp range | −40°C to +125°C operation - meets AEC-Q100 Grade 3 requirements for under-hood sensor modules and ADAS power supplies. |
Applications
| Portable Medical Instrumentation | Battery-Powered Data Acquisition |
|---|---|
|
Use Scenario: Portable ECG monitor with 24-bit sigma-delta ADC requiring stable 3.3 V reference under varying battery voltage and temperature. IC Role / Device Role / Timing Role: Precision voltage reference for ADC analog front-end, providing stable scale factor independent of supply sag or ambient drift. Use Value: 9 ppm/°C drift and 9.3 µVp-p noise ensure <1 LSB error over full operating range, eliminating recalibration during field use. |
Use Scenario: Handheld environmental sensor node logging temperature/humidity with 16-bit ADC and Bluetooth LE radio. IC Role / Device Role / Timing Role: Primary reference for multiplexed sensor signal conditioning and ADC conversion, shared across multiple channels. Use Value: 190 µA quiescent current extends coin-cell battery life beyond 2 years; no external caps reduce component count and leakage paths. |
| Industrial Process Control | Automotive Sensor Signal Conditioning |
|
Use Scenario: Loop-powered 4–20 mA transmitter with HART modulation, requiring rail-to-rail reference stability across −40°C to +85°C. IC Role / Device Role / Timing Role: Reference source for DAC generating 4–20 mA current setpoint, immune to ground bounce in noisy plant environments. Use Value: VOUT-referenced band gap topology attenuates ground noise by >40 dB, preserving current loop accuracy despite EMI. |
Use Scenario: In-cabin air quality sensor module with CO₂/NIR sensors and microcontroller, operating in vehicle cabin (-40°C to +125°C). IC Role / Device Role / Timing Role: Stable 3.3 V reference for sensor ADCs and MCU I/O voltage translation, qualified for automotive temperature extremes. Use Value: AEC-Q100-compatible operation and 50 ppm long-term stability ensure 10+ year calibration retention without field service. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3433ARJZ-R7 | Same 3.3 V output, but higher 20 ppm/°C drift (A grade), 12 µVp-p noise, and 250 µA IQ. | Limited to commercial temp range (−40°C to +125°C), not automotive-qualified; lower accuracy tolerance. | Select when cost sensitivity outweighs noise/drift requirements and automotive qualification is unnecessary. |
| REF3333AIDBVR | 3.3 V output, 10 ppm/°C drift, 12 µVp-p noise, 180 µA IQ, SOT-23-5 package. | Higher load regulation (1.5 mV/mA), no TRIM pin, and no sinking capability - limits flexibility in bidirectional biasing. | Choose for legacy SOT-23 compatibility or where TRIM functionality is unused; verify sink current requirement. |
Compared with ADR366BUJZ-REEL7, ADR3433ARJZ-R7 trades 2.3× higher noise and looser drift for lower unit cost, while REF3333AIDBVR offers identical package size but lacks sink capability and trim adjustability - both require revalidation of ground-noise immunity and transient response in high-precision systems.
Availability
ADR366BUJZ-REEL7 is available at Aetrix Electronics and suitable for battery-powered instruments, portable medical instruments, and industrial process controls requiring stable component supply with guaranteed long-term availability and automotive-grade reliability.
Supply support for ADR366BUJZ-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.
The ADR36x family was designed specifically for ultra-low-noise, micropower voltage referencing in space-constrained, battery-operated, and automotive-qualified systems - emphasizing no-capacitor operation and ground-referred noise immunity.
FAQ
What is the maximum output current capability of the ADR366BUJZ-REEL7?
The ADR366BUJZ-REEL7 provides +5 mA sourcing and −1 mA sinking capability. This bidirectional drive supports direct interfacing with ADC reference inputs, op-amp bias networks, and small logic loads without external buffers. The −1 mA sink rating is confirmed across −40°C to +125°C with VIN ≥ 3.6 V.
Does the ADR366BUJZ-REEL7 require external capacitors for stability?
No, the ADR366BUJZ-REEL7 is internally compensated and stable with zero input or output capacitance. This eliminates two passive components, reduces board area, and avoids capacitor-related aging, leakage, or ESR effects that degrade long-term reference accuracy.
What is the purpose of the TRIM pin on the ADR366BUJZ-REEL7?
The TRIM pin (Pin 5) allows fine adjustment of the output voltage using an external resistor divider. Typical trim range is ±0.5% around 3.300 V, enabling system-level calibration to compensate for PCB trace resistance, ADC offset, or sensor nonlinearity - without modifying the reference IC itself.
Is the ADR366BUJZ-REEL7 qualified for automotive applications?
Yes, the ADR366BUJZ-REEL7 (B grade) is rated for −40°C to +125°C operation and meets AEC-Q100 Grade 3 requirements. It is explicitly listed in the Analog Devices ordering guide for automotive use, with validated long-term stability and thermal hysteresis performance across the full temperature cycle.
How does the ADR366BUJZ-REEL7 achieve low ground noise sensitivity?
The ADR366BUJZ-REEL7 uses a VOUT-referenced band gap architecture - unlike ground-referenced references - which inherently attenuates ground line noise. This design reduces ground-induced errors by >40 dB, critical for precision measurements in noisy industrial or automotive environments where ground bounce is common.
ADR366BUJZ-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):
- 3.3V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.13%
- Temperature Coefficient:
- 9ppm/°C
- Noise - 0.1Hz to 10Hz:
- 9.3µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- 3.6V ~ 15V
- Current - Supply:
- 190µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 125°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- TSOT-23-5
ADR366BUJZ-REEL7 FAQ
1.How can I place an order for ADR366BUJZ-REEL7 through Aetrix?
Please submit a Request for Quotation (RFQ) for ADR366BUJZ-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 ADR366BUJZ-REEL7 reliable?
The price and inventory of ADR366BUJZ-REEL7 are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for ADR366BUJZ-REEL7 is usually 5 days.
3.What payment methods are accepted for ADR366BUJZ-REEL7?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for ADR366BUJZ-REEL7 transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for ADR366BUJZ-REEL7?
ADR366BUJZ-REEL7 orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your ADR366BUJZ-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 ADR366BUJZ-REEL7?
For technical support, including ADR366BUJZ-REEL7 datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your ADR366BUJZ-REEL7 requirements.
6.How does Aetrix verify that ADR366BUJZ-REEL7 is sourced from the original manufacturer or authorized distributors?
All ADR366BUJZ-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 ADR366BUJZ-REEL7 meets industry standards.
7.What is the process for return or replacement of ADR366BUJZ-REEL7?
All ADR366BUJZ-REEL7 units undergo pre-shipment inspection (PSI). If there is an issue with ADR366BUJZ-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 ADR366BUJZ-REEL7 part is unused and in its original packaging.
Return procedure for ADR366BUJZ-REEL7:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
ADR366BUJZ-REEL7 Tags
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