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Analog Devices Inc./Maxim Integrated MAX6009AEUR-T
- Part No.:
- MAX6009AEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6009AEUR-T.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:4,150
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Product details
Overview
MAX6009AEUR-T from Maxim Integrated is a precision 3.0V, 0.2% initial accuracy, 30ppm/°C temperature coefficient shunt voltage reference in a 3-pin SOT23 package, operating down to 1.0µA and supporting battery-powered instrumentation, portable meters, and high-resolution ADC/DAC biasing.
For engineers reviewing the MAX6009AEUR-T datasheet, MAX6009AEUR-T pinout, MAX6009AEUR-T application, or MAX6009AEUR-T equivalent, this page delivers verified electrical specs, validated SOT23 terminal roles, real-world use cases in low-power precision analog systems, and confirmed alternative references with documented parameter trade-offs.
Technical Context
The MAX6009AEUR-T is a two-terminal bandgap shunt reference using laser-trimmed thin-film resistors for 0.2% output voltage accuracy at +25°C. It operates over -40°C to +85°C with guaranteed <1µA minimum operating current and reverse dynamic impedance of 2.2Ω (1.2µA–2mA).
Its design targets ultra-low-power analog signal conditioning: the 3.0V output is stable across 1.2µA–2mA load current, exhibits 2.7mV reverse breakdown change from 200µA to 2mA, and delivers 75µVP-P low-frequency noise (0.1Hz–10Hz) at 1.2µA bias.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 3.000V ±0.2% (±6mV) at +25°C - enables precise 3V biasing for 12-bit+ ADCs without calibration. |
| Initial Accuracy | ±0.2% - guarantees full-scale error ≤2.4 LSB in a 12-bit system referenced to 3.0V. |
| Temp Coefficient | ≤30ppm/°C - contributes ≤2.4mV drift over -40°C to +85°C, critical for uncalibrated field instruments. |
| Min Operating Current | 1.0µA max - supports operation from microamp-level energy harvesters or coin-cell leakage budgets. |
| Reverse Dynamic Impedance | 2.2Ω (1.2µA–2mA) - ensures <5mV load regulation error for 10µA load shifts in precision sensor front-ends. |
| Low-Frequency Noise | 75µVP-P (0.1Hz–10Hz) - limits noise contribution to <0.5 LSB in 16-bit 3V-referenced systems. |
| Long-Term Drift | 150ppm/1000h - equates to ~0.45mV shift after 6 weeks, acceptable for non-critical industrial logging. |
Pinout & Package
MAX6009AEUR-T uses a RoHS-compliant 3-pin SOT23 package (2.1mm × 2.7mm), with pins arranged as OUT (pin 1), GND (pin 2), and IC (pin 3). Pin 3 is an internally connected test point and must be left unconnected or tied to GND.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (OUT) | Reference output node | Bias with external pull-up resistor >3V; requires ≥0.01µF bypass capacitor to GND for stability and noise suppression. |
| 2 (GND) | Analog ground reference | Must connect to clean system ground plane; shared return path affects accuracy if noisy digital currents flow through it. |
| 3 (IC) | Internal test point | No functional connection required; floating or GND tie has no effect on performance per datasheet specification. |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low operating current | Guaranteed <1µA minimum - enables multi-year operation from CR2032 batteries in portable data loggers. |
| Laser-trimmed voltage accuracy | 0.2% initial tolerance - eliminates need for post-assembly calibration in medical handheld devices. |
| Stable 3.0V output | 3.000V ±6mV at +25°C - matches standard 3V supply rails for seamless integration into 3.3V LDO-based systems. |
| Low thermal hysteresis | 200ppm max - ensures repeatable voltage after thermal cycling, essential for field-deployed environmental sensors. |
| Wide operating current range | 1.2µA to 2mA - accommodates varying load conditions without re-biasing in battery-voltage-tracking applications. |
Applications
| Portable Multimeters | Precision Data Acquisition Systems |
|---|---|
Use Scenario: Handheld 4½-digit DMM requiring stable 3V reference for autoranging ADC and LCD bias. IC Role / Device Role / Timing Role: Shunt voltage reference providing primary 3.0V reference for dual-slope integrator and display driver. Use Value: 30ppm/°C tempco ensures <0.01% reading drift across operating temperature, meeting IEC 61010 Class II accuracy requirements. | Use Scenario: Industrial 16-bit isolated DAQ module measuring thermocouple and RTD signals. IC Role / Device Role / Timing Role: Low-noise 3.0V reference for SAR ADC and programmable gain amplifier biasing. Use Value: 75µVP-P (0.1Hz–10Hz) noise contributes <0.3 LSB error, preserving effective resolution in DC-coupled measurements. |
| Wireless Sensor Nodes | Medical Wearables |
Use Scenario: Battery-powered soil moisture sensor transmitting via BLE, operating intermittently for 5+ years. IC Role / Device Role / Timing Role: Ultra-low-current shunt reference powering ADC and MCU VREF during active measurement bursts. Use Value: 1.0µA min operating current allows biasing from nanoamp sleep-mode supplies, extending battery life beyond 60 months. | Use Scenario: ECG patch monitoring heart rate variability with sub-µV signal integrity requirements. IC Role / Device Role / Timing Role: Precision 3.0V reference for low-noise instrumentation amplifier and 24-bit delta-sigma ADC. Use Value: 150ppm long-term drift limits baseline voltage shift to <0.5mV over 3 months, maintaining diagnostic accuracy without recalibration. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar shunt voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| LM4040C30IDBZR | 3.0V, 0.5% initial accuracy, 100ppm/°C tempco, 60µA min operating current | Higher power consumption and lower accuracy limit use in <10-year battery applications and metrology-grade systems | Select when cost sensitivity outweighs long-term stability and ultra-low current needs |
| ADR3430ARJZ-R7 | 3.0V, 0.1% initial accuracy, 10ppm/°C tempco, 120µA min operating current | Superior accuracy and tempco but 120× higher quiescent current restricts use in energy-harvesting designs | Select when highest precision is required and supply current >100µA is available |
Compared with LM4040C30IDBZR and ADR3430ARJZ-R7, the MAX6009AEUR-T uniquely balances 0.2% accuracy, 30ppm/°C stability, and sub-µA operation-making it the only choice for multi-year battery-powered precision analog systems where both accuracy and current budget are constrained.
Availability
MAX6009AEUR-T is available at Aetrix Electronics and suitable for portable instrumentation, wireless sensor networks, and medical wearables requiring stable component supply with guaranteed long-term availability and RoHS-compliant packaging.
Supply support for MAX6009AEUR-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 demanding industrial, medical, and communications applications.
The MAX6006–MAX6009 family was engineered specifically for ultra-low-power, high-accuracy shunt reference needs in space-constrained portable and battery-operated systems-prioritizing sub-µA operation without sacrificing 0.2% initial tolerance or 30ppm/°C thermal stability.
FAQ
What is the guaranteed minimum operating current for MAX6009AEUR-T?
The MAX6009AEUR-T guarantees a maximum minimum operating current of 1.0µA, meaning it maintains specified 3.0V output accuracy with as little as 1.0µA flowing from OUT to GND. This value is tested and guaranteed across -40°C to +85°C, enabling reliable operation in energy-limited systems like coin-cell-powered sensors where the MAX6009AEUR-T's ultra-low current draw directly extends service life.
Can MAX6009AEUR-T be used in place of LM4040 in existing designs?
MAX6009AEUR-T is not a direct drop-in replacement for LM4040 due to different pinout (SOT23 OUT/GND/IC vs. LM4040's cathode/anode/reference) and significantly lower operating current (1µA vs. 60µA). While both are 3.0V shunt references, redesigning the bias network and verifying layout compatibility is required. The MAX6009AEUR-T offers superior accuracy and tempco but demands careful attention to its IC pin (pin 3), which must remain unconnected or grounded per datasheet.
What is the purpose of the IC pin (pin 3) on MAX6009AEUR-T?
The IC pin (pin 3) on MAX6009AEUR-T is an internally connected test point used during wafer sort and final test. It serves no functional role in normal operation. The datasheet explicitly states this pin must be left unconnected or tied to GND-neither configuration affects electrical performance, and connecting it to any other potential may compromise reliability or accuracy of the MAX6009AEUR-T.
How does MAX6009AEUR-T handle load transients?
MAX6009AEUR-T requires a minimum 0.01µF capacitor from OUT to GND to maintain stability during load transients. Its 2.2Ω dynamic impedance and 75µVP-P low-frequency noise ensure minimal voltage perturbation under step-load changes up to 2mA. For fast transient suppression, adding 1–10µF bulk capacitance is recommended-especially in battery-powered systems where supply impedance rises with discharge, as confirmed in the MAX6009AEUR-T typical operating characteristics.
Is MAX6009AEUR-T qualified for automotive applications?
No, MAX6009AEUR-T is not automotive-qualified. It is rated for the extended industrial temperature range (-40°C to +85°C) but lacks AEC-Q200 qualification, automotive-grade screening, or the /V suffix indicating automotive qualification. For automotive use, Maxim offers the MAX6009AEUR/V+T variant (with /V suffix), which undergoes additional stress testing and lot traceability-distinct from the standard MAX6009AEUR-T supplied in tape-and-reel packaging.
MAX6009AEUR-T Specifications
- Product attributes
- Attribute value
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Package/Case:
- TO-236-3, SC-59, SOT-23-3
- Series:
- -
- Packaging:
- Bulk
- Product Status:
- Active
- Reference Type:
- Shunt
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 3V
- Voltage - Output (Max):
- -
- Current - Output:
- 20 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 30ppm/°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:
- Automotive
- Qualification:
- AEC-Q100
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6009AEUR-T FAQ
1.How can I place an order for MAX6009AEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6009AEUR-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 MAX6009AEUR-T reliable?
The price and inventory of MAX6009AEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6009AEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6009AEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6009AEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6009AEUR-T?
MAX6009AEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6009AEUR-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 MAX6009AEUR-T?
For technical support, including MAX6009AEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6009AEUR-T requirements.
6.How does Aetrix verify that MAX6009AEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6009AEUR-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 MAX6009AEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6009AEUR-T?
All MAX6009AEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6009AEUR-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 MAX6009AEUR-T part is unused and in its original packaging.
Return procedure for MAX6009AEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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