Analog Devices Inc./Maxim Integrated MAX6067BEUR-T
- Part No.:
- MAX6067BEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6067BEUR-T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:

- Shipping:

Inventory:1,234
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Product details
Overview
MAX6067BEUR-T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 4.500V output with ±0.2% (max) initial accuracy and 20ppm/°C (max) temperature coefficient over –40°C to +85°C. It sources up to 5mA or sinks 2mA, operates from (VOUT + 0.2V) to 12.6V input, and draws only 90µA typical supply current. It is used in high-accuracy ADC biasing, portable instrumentation, and battery-powered 3V/5V systems requiring minimal board space.
For engineers reviewing the MAX6067BEUR-T datasheet, MAX6067BEUR-T pinout, MAX6067BEUR-T application, or MAX6067BEUR-T equivalent, this page delivers verified specifications, SOT23-3 terminal mapping, real-world use cases in precision analog systems, and two validated alternative parts with documented functional and application-level differences.
Technical Context
The MAX6067BEUR-T is a three-terminal, internally compensated series-mode voltage reference employing proprietary curvature-correction circuitry and laser-trimmed thin-film resistors. Its architecture eliminates the need for external compensation capacitors while maintaining stability with capacitive loads - a key differentiator from shunt-mode references.
It achieves ultra-low supply current variation (≤8µA/V) across its 4.7V–12.6V input range and supports load transients up to ±5mA without requiring output capacitance. Dropout voltage remains ≤200mV at 1mA, enabling operation in low-headroom battery-supplied systems where headroom is constrained.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.500V ±0.2% (max) at +25°C - ensures direct compatibility with 4.5V ADC reference rails and precision 3V/5V system logic levels. |
| Tempco | 20ppm/°C (max) - guarantees ≤±0.9mV drift over –40°C to +85°C, critical for uncalibrated field-deployed sensors. |
| Dropout Voltage | ≤200mV at 1mA load - allows operation from 4.7V input (e.g., single Li-ion cell post-regulation), minimizing power loss. |
| Supply Current | 90µA (typ), ≤8µA/V variation - enables multi-year battery life in always-on portable meters and IoT endpoints. |
| Load Drive | Sources 5mA / sinks 2mA - directly drives SAR ADC reference inputs, op-amp bias networks, and small DACs without buffering. |
| Noise (0.1–10Hz) | 55µVp-p - low enough to avoid degrading ENOB in 16-bit+ data acquisition systems. |
| Ripple Rejection | 70dB at 120Hz - suppresses line-frequency artifacts in AC-powered test equipment and medical monitors. |
Pinout & Package
MAX6067BEUR-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 0.95mm height - optimized for space-constrained PCB layouts in handheld devices.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 4.7V–12.6V; internal regulation rejects ripple and maintains reference stability even with noisy input rails. |
| 2 (OUT) | Precision Reference Output | Provides 4.500V ±0.2% output; capable of sourcing 5mA or sinking 2mA into mixed-signal loads without droop. |
| 3 (GND) | Analog Ground Reference | Must be connected to clean system ground plane; separates reference return path from digital switching noise. |
Key Features
| Feature | Design Value |
|---|---|
| No external capacitor required | Internally compensated design eliminates mandatory output capacitor - saves >1mm² PCB area and reduces BOM count in wearables and sensor nodes. |
| Stable with capacitive loads | Remains stable with ≥0.1µF ceramic output capacitance - simplifies transient response tuning in battery-powered DMMs and portable oscilloscopes. |
| Ultra-low quiescent current | 90µA typical supply current independent of VIN - extends shelf life and runtime in coin-cell–powered calibration tools. |
| Low dropout | 200mV max dropout at 1mA - enables use after low-dropout regulators in multi-rail systems, preserving margin for aging batteries. |
| High-output-current capability | 5mA sourcing capacity - directly powers reference inputs of dual-channel 16-bit ADCs (e.g., ADS8860) without external buffers. |
Applications
| Portable Digital Multimeters | Handheld Spectrum Analyzers |
|---|---|
Use Scenario: Battery-powered DMM measuring DC voltage with 0.01% accuracy over full temperature range. IC Role / Device Role / Timing Role: Primary 4.5V reference for 24-bit sigma-delta ADC and internal DAC calibration. Use Value: ±0.2% initial accuracy and 20ppm/°C tempco ensure measurement traceability without factory recalibration across –10°C to +50°C ambient. |
Use Scenario: Compact RF spectrum analyzer requiring stable LO synthesis and ADC sampling clock reference. IC Role / Device Role / Timing Role: Low-noise 4.5V reference for PLL VCO tuning and 14-bit ADC front-end biasing. Use Value: 55µVp-p (0.1–10Hz) noise and 70dB PSRR prevent spurious tones and quantization floor degradation in sub-1GHz analysis bands. |
| Industrial Data Loggers | Battery-Powered Gas Sensors |
Use Scenario: Remote environmental logger operating for 5+ years on AA alkaline cells, recording temperature/humidity/pressure. IC Role / Device Role / Timing Role: Precision reference for multiplexed sensor signal conditioning and 16-bit SAR ADC conversion. Use Value: 90µA quiescent current and no required output cap reduce sleep-mode power to <1µW, enabling decade-scale deployment. |
Use Scenario: Portable CO/H2S detector using electrochemical sensors requiring stable bias and ratiometric ADC measurement. IC Role / Device Role / Timing Role: Ratiometric reference for sensor excitation and ADC reference in single-supply 3.3V system. Use Value: 200mV dropout allows operation down to 4.7V input - compatible with buck-boost regulator output feeding 3.3V MCU and analog front-end. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3445ARMZ-R7 | 4.5V output, ±0.1% initial accuracy, 10ppm/°C tempco, 4.5µA quiescent current, but requires 1µF output capacitor for stability. | Better accuracy/tempco, but higher external component count and larger layout footprint - suited for lab-grade instruments, not space-constrained portables. | Select when ultimate long-term stability and lower noise (<10µVp-p) outweigh board area constraints and supply current sensitivity. |
| REF3345AIDBVR | 4.5V output, ±0.2% initial accuracy, 30ppm/°C tempco, 8.5µA quiescent current, stable with no output capacitor. | Lower supply current than MAX6067BEUR-T, but higher tempco limits use in wide-temperature industrial deployments. | Select for ultra-low-power applications (e.g., energy-harvesting sensors) where temperature range is limited to 0°C–70°C and 30ppm/°C drift is acceptable. |
Compared with ADR3445ARMZ-R7 and REF3345AIDBVR, MAX6067BEUR-T uniquely balances ±0.2% accuracy, 20ppm/°C tempco, 90µA supply current, and capacitor-free operation in a 3-pin SOT23 - making it optimal for battery-powered test equipment needing robustness across –40°C to +85°C without layout overhead.
Availability
MAX6067BEUR-T is available at Aetrix Electronics and suitable for portable digital multimeters, handheld spectrum analyzers, industrial data loggers, and battery-powered gas sensors requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6067BEUR-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 high-performance analog and mixed-signal ICs for precision, power, and interface applications - with emphasis on miniaturization, efficiency, and reliability.
The MAX6061–MAX6068 family was engineered specifically for space- and power-constrained portable instrumentation, offering precision voltage references in ultra-small SOT23 packages without sacrificing output drive or thermal stability.
FAQ
What is the maximum input voltage for MAX6067BEUR-T?
The MAX6067BEUR-T supports an input voltage range from (VOUT + 0.2V) = 4.7V up to 12.6V. Absolute maximum rating is +13.5V on the IN pin. Operation above 12.6V is not characterized and may compromise parametric guarantees or long-term reliability of the MAX6067BEUR-T.
Does MAX6067BEUR-T require an output capacitor for stability?
No, the MAX6067BEUR-T is internally compensated and does not require an external output capacitor for stability. It remains stable with capacitive loads up to at least 1µF. Adding ≥0.1µF ceramic capacitance improves transient response in dynamic load applications, but is optional - a key advantage for space-critical designs using the MAX6067BEUR-T.
What is the load regulation performance of MAX6067BEUR-T?
The MAX6067BEUR-T exhibits ≤0.9mV/mA load regulation when sourcing 0–5mA and ≤8.0mV/mA when sinking –2mA to 0mA. This translates to <±4.5mV total output shift across full 5mA sourcing range - sufficient for 12-bit ADC reference applications and compatible with most precision op-amp bias networks driven by the MAX6067BEUR-T.
How does MAX6067BEUR-T compare to shunt voltage references in battery-powered systems?
Unlike shunt references that waste supply current via a series resistor, the MAX6067BEUR-T draws only 90µA quiescent current - independent of input voltage. It also avoids mandatory external resistor selection and biasing overhead. This makes the MAX6067BEUR-T significantly more efficient in battery-powered systems, especially during light-load or sleep conditions where shunt references continue drawing fixed current.
Is MAX6067BEUR-T suitable for automotive applications?
The MAX6067BEUR-T is specified for –40°C to +85°C operation and meets industrial temperature requirements, but it is not AEC-Q200 qualified or rated for automotive under-hood environments. For automotive cabin or infotainment applications within its temperature range, system-level qualification is required. The MAX6067BEUR-T is primarily intended for industrial, portable, and medical instrumentation - not automotive safety-critical subsystems.
MAX6067BEUR-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:
- Obsolete
- Reference Type:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 55µVp-p
- Noise - 10Hz to 10kHz:
- 55µVrms
- Voltage - Input:
- 4.7V ~ 12.6V
- Current - Supply:
- 125µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6067BEUR-T FAQ
1.How can I place an order for MAX6067BEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6067BEUR-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 MAX6067BEUR-T reliable?
The price and inventory of MAX6067BEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6067BEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6067BEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6067BEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6067BEUR-T?
MAX6067BEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6067BEUR-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 MAX6067BEUR-T?
For technical support, including MAX6067BEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6067BEUR-T requirements.
6.How does Aetrix verify that MAX6067BEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6067BEUR-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 MAX6067BEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6067BEUR-T?
All MAX6067BEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6067BEUR-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 MAX6067BEUR-T part is unused and in its original packaging.
Return procedure for MAX6067BEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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