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Analog Devices Inc./Maxim Integrated MAX6009BEUR+T
- Part No.:
- MAX6009BEUR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6009BEUR+T.pdf
- Description:
- IC VREF SHUNT 0.5% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:7,916
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Product details
Overview
MAX6009BEUR+T from Maxim Integrated is a precision 3.0V two-terminal shunt voltage reference in a 3-pin SOT23 package, featuring 0.5% initial accuracy, 75ppm/°C temperature coefficient, <1µA minimum operating current, and operation across -40°C to +85°C for battery-powered instrumentation and portable A/D converters.
For engineers reviewing the MAX6009BEUR+T datasheet, MAX6009BEUR+T pinout, MAX6009BEUR+T application, or MAX6009BEUR+T equivalent, key selection criteria include ultra-low quiescent current, tight output tolerance at low bias, thermal stability in compact layouts, and compatibility with 0.01µF output bypassing in space-constrained analog front-ends.
Technical Context
The MAX6009BEUR+T implements a laser-trimmed series bandgap core with on-chip thin-film resistors to achieve factory-set 3.0V output. Its two-terminal architecture requires external bias current via RBIAS, with output regulation maintained over 1µA–2mA load current range.
It operates as a passive shunt element-drawing only required current to hold VOUT at 3.0V-enabling use in high-impedance sensing nodes and low-power supply monitoring where series references would introduce dropout or quiescent overhead.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.5% (2.985V–3.015V at +25°C, IR = 1.2µA) |
| Initial Accuracy | ±0.5% - sets absolute error floor for calibration-critical systems without trimming |
| Temp Coefficient | 75ppm/°C max - contributes ≤±0.63mV/°C drift over -40°C to +85°C |
| Min Operating Current | 0.5µA - enables operation in nanoamp-bias circuits like energy-harvesting sensors |
| Reverse Dynamic Impedance | 2.2Ω (1.2µA–2mA) - ensures stable regulation under varying load transients |
| Low-Freq Noise | 75µVP-P (0.1Hz–10Hz) - supports 16-bit ADC reference without added filtering |
| Long-Term Drift | 150ppm/1000h - defines baseline aging impact on system calibration intervals |
Pinout & Package
MAX6009BEUR+T uses a 3-pin SOT23 package (outline 21-0051, land pattern 90-0179), with 2.1mm × 2.7mm footprint and 274.23°C/W junction-to-ambient thermal resistance on multilayer board.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Reference Output Terminal | Bias with pull-up resistor >3.0V; must be bypassed to GND with ≥0.01µF capacitor for stability |
| 2 (GND) | Ground Reference Node | Return path for bias current and load current; forms reference potential for OUT voltage |
| 3 (IC) | Internal Test Point | No functional connection; leave unconnected or tie to GND-no electrical role in operation |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-Low Operating Current | Guaranteed <1µA min bias enables µA-level power budgeting in coin-cell devices |
| Laser-Trimmed Bandgap Core | Factory-set 3.0V output with 0.5% accuracy eliminates need for post-assembly calibration |
| Thermal Hysteresis | ≤200ppm - limits repeatability error after thermal cycling in field-deployed equipment |
| Wide Operating Range | 1µA–2mA current range accommodates variable load conditions without re-biasing |
| Low-Frequency Noise Performance | 75µVP-P (0.1–10Hz) supports high-resolution data acquisition without external noise filtering |
Applications
| Battery-Powered Portable Meters | Precision Analog Front-Ends |
|---|---|
Use Scenario: Handheld multimeters and environmental sensors powered by CR2032 cells requiring stable reference over full battery discharge curve. IC Role / Device Role / Timing Role: Shunt voltage reference providing 3.0V基准 for 16-bit SAR ADC and internal LDO feedback. Use Value: Sub-1µA quiescent draw extends battery life beyond 5 years; 75ppm/°C TC maintains <±2mV error across operating temperature. | Use Scenario: Industrial sensor signal conditioning modules with isolated 4–20mA outputs and local microcontroller supervision. IC Role / Device Role / Timing Role: Precision 3.0V reference for ratiometric bridge measurements and DAC output scaling. Use Value: 0.01µF bypass compatibility allows integration into dense PCB layouts; 2.2Ω dynamic impedance ensures minimal gain error during fast load steps. |
| Low-Power Data Loggers | Portable Medical Devices |
Use Scenario: Wearable ECG recorders sampling at 1kHz with sleep-mode duty cycling to conserve energy. IC Role / Device Role / Timing Role: Reference source for ADC during active measurement bursts, disabled between samples. Use Value: 0.5µA minimum operating current permits rapid wake-up from deep sleep without reference settling delay. | Use Scenario: Pocket-sized pulse oximeters using photodiode arrays and low-noise transimpedance amplifiers. IC Role / Device Role / Timing Role: Low-noise 3.0V reference for analog signal chain gain stages and ADC reference input. Use Value: 75µVP-P (0.1–10Hz) noise floor avoids degrading SNR of weak optical signals below 100nA. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C30IDCKR | 3.0V, 0.5% initial accuracy, 100ppm/°C TC, 60µVP-P noise, 60µA min current | Higher minimum current increases power consumption in nanoamp systems | Select when lower noise is prioritized over ultra-low IQ, and board space allows larger SOT-23-5 footprint |
| MAX6009AEUR+T | Same 3.0V output and SOT23 package, but 0.2% accuracy and 30ppm/°C TC | Improved stability and tighter tolerance for calibration-grade instruments | Select when higher accuracy and lower drift justify cost premium in test equipment or metrology applications |
Compared with LM4040C30IDCKR, MAX6009BEUR+T delivers 4× lower operating current and better thermal stability; compared with MAX6009AEUR+T, it trades 0.3% accuracy and 45ppm/°C TC for lower cost in non-calibration applications where 0.5% tolerance is acceptable.
Availability
MAX6009BEUR+T is available at Aetrix Electronics and suitable for battery-powered meters, portable medical devices, low-power data loggers, and precision analog front-ends requiring stable component supply with RoHS-compliant packaging and tape-and-reel delivery.
Supply support for MAX6009BEUR+T 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
Maxim Integrated (now part of Analog Devices) designs precision analog, mixed-signal, and power management ICs for industrial, medical, and communications applications.
The MAX6006–MAX6009 family targets ultra-low-power, space-constrained systems needing stable voltage references with sub-1µA bias and SOT23 footprint-optimized for portable instrumentation and energy-sensitive sensing nodes.
FAQ
What is the guaranteed minimum operating current for MAX6009BEUR+T?
The MAX6009BEUR+T guarantees a minimum operating current of 0.5µA, with typical performance at 1.0µA. This value ensures the device maintains its specified 3.0V output accuracy within ±0.5% while drawing less than 1µA-critical for extending battery life in always-on sensor nodes. The MAX6009BEUR+T remains functional down to this threshold, making it suitable for applications where bias current must stay below 1µA.
Does MAX6009BEUR+T require an external capacitor, and if so, what value?
Yes, MAX6009BEUR+T requires an external capacitor from OUT to GND for stability. The datasheet specifies a minimum of 0.01µF ceramic capacitor, placed as close as possible to the device pins. This capacitor suppresses high-frequency oscillation and improves transient response during load changes. Larger values may be used in noisy environments, but the 0.01µF value is sufficient for standard operation of MAX6009BEUR+T in most precision analog circuits.
What is the temperature coefficient specification for MAX6009BEUR+T, and how does it affect system accuracy?
The MAX6009BEUR+T has a maximum temperature coefficient of 75ppm/°C over –40°C to +85°C. At 3.0V output, this translates to a worst-case drift of ±0.63mV per °C change. Over the full temperature range, total drift is bounded to ±0.189V (63mV), ensuring predictable error contribution in thermally varying environments. This TC value is confirmed in the Electrical Characteristics table for MAX6009B grade and applies directly to MAX6009BEUR+T.
Can MAX6009BEUR+T be used as a direct replacement for LM4040 in existing designs?
MAX6009BEUR+T is not a pin-compatible drop-in replacement for LM4040 due to differing pinouts and terminal functions-LM4040 uses cathode/anode configuration, while MAX6009BEUR+T uses OUT/GND/IC. However, it serves the same functional role as a 3.0V shunt reference. Designers must verify bias network compatibility, confirm that the IC pin is left unconnected or grounded, and validate startup behavior with the lower 0.5µA minimum current. MAX6009BEUR+T offers superior low-current performance but requires schematic review before substitution.
What is the long-term stability of MAX6009BEUR+T, and how is it measured?
MAX6009BEUR+T exhibits 150ppm long-term drift after 1000 hours of operation at +25°C, as measured per JEDEC JESD22-A117. This parameter reflects output voltage change due to material aging and stress relaxation in the bandgap core. For a 3.0V reference, this equates to ±0.45mV shift over 1000h-providing a quantifiable basis for recalibration scheduling in metrology or medical devices. This value is guaranteed across all grades and applies specifically to MAX6009BEUR+T per the published Electrical Characteristics table.
MAX6009BEUR+T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Tape & Reel (TR)
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 2 mA
- Tolerance:
- ±0.5%
- Temperature Coefficient:
- 75ppm/°C
- Noise - 0.1Hz to 10Hz:
- 75µVp-p
- Noise - 10Hz to 10kHz:
- -
- Voltage - Input:
- -
- Current - Supply:
- -
- Current - Cathode:
- 1 µA
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6009BEUR+T FAQ
1.How can I place an order for MAX6009BEUR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6009BEUR+T 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 MAX6009BEUR+T reliable?
The price and inventory of MAX6009BEUR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6009BEUR+T is usually 5 days.
3.What payment methods are accepted for MAX6009BEUR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6009BEUR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6009BEUR+T?
MAX6009BEUR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6009BEUR+T 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 MAX6009BEUR+T?
For technical support, including MAX6009BEUR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6009BEUR+T requirements.
6.How does Aetrix verify that MAX6009BEUR+T is sourced from the original manufacturer or authorized distributors?
All MAX6009BEUR+T 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 MAX6009BEUR+T meets industry standards.
7.What is the process for return or replacement of MAX6009BEUR+T?
All MAX6009BEUR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6009BEUR+T, 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 MAX6009BEUR+T part is unused and in its original packaging.
Return procedure for MAX6009BEUR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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