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Analog Devices Inc./Maxim Integrated MAX6064BEUR-T
- Part No.:
- MAX6064BEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6064BEUR-T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,295
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Product details
Overview
MAX6064BEUR-T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 4.096V output with ±0.4% initial accuracy and 20ppm/°C max temperature coefficient over –40°C to +85°C. It sources up to 5mA or sinks 2mA, draws only 90µA typical supply current, and operates with as little as 4.296V input (VOUT + 200mV), making it ideal for high-resolution ADC biasing in portable instrumentation.
For engineers reviewing the MAX6064BEUR-T datasheet, MAX6064BEUR-T pinout, MAX6064BEUR-T application, or MAX6064BEUR-T equivalent, key selection criteria include its guaranteed 4.096V output tolerance, ultra-low supply current independence from input voltage (≤8µA/V variation), absence of required output capacitor, and SOT23-3 package compatibility with space-constrained PCB layouts.
Technical Context
The MAX6064BEUR-T is a three-terminal, series-mode voltage reference using proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve high initial accuracy and low thermal drift. Its internal compensation eliminates need for external stability capacitors, and its supply current remains stable across 4.296V–12.6V input range.
It features 50µV/V line regulation (typ), 0.5–0.9mV/mA load regulation (sourcing), and 72dB power-supply rejection at 120Hz - enabling reliable operation in noisy battery-powered systems where reference stability directly impacts ADC effective resolution.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.4% (max) at +25°C - ensures direct compatibility with 12-bit ADC full-scale ranges requiring exact VREF = VDD/2 or 4.096V scaling. |
| Temp Coefficient | 20ppm/°C (max) - limits output drift to ≤±1.7mV over –40°C to +85°C, critical for precision sensor signal chains. |
| Quiescent Current | 90µA (typ), ≤125µA (max) - enables >1-year battery life in always-on portable DMMs drawing <10µA average system current. |
| Dropout Voltage | 200mV (max) at 1mA load - allows operation from single Li-ion cell (3.0–4.2V) when paired with LDO or direct from 4.3V supply rail. |
| Load Drive | Sources 5mA / sinks 2mA - supports driving SAR ADC reference inputs, op-amp bias networks, and small DAC loads without external buffers. |
| Noise (0.1–10Hz) | 50µVp-p - contributes <0.012 LSB noise to 12-bit 4.096V ADCs, preserving ENOB in low-frequency measurement applications. |
| PSRR | 72dB at 120Hz - suppresses ripple from switching regulators or AC/DC adapters feeding the reference input. |
Pinout & Package
MAX6064BEUR-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 1.45mm height - compatible with standard pick-and-place equipment and reflow profiles.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 4.296V–12.6V DC; requires no series resistor; decoupling with 0.1µF ceramic capacitor improves line-transient response. |
| 2 (OUT) | Precision Reference Output | Delivers regulated 4.096V; stable with capacitive loads ≥0.1µF; no external compensation capacitor needed for stability. |
| 3 (GND) | Analog Ground Reference | Must be connected to clean analog ground plane; separate from digital ground if mixed-signal layout used to avoid noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Initial Accuracy | ±0.4% (max) - eliminates need for post-production calibration in factory-set portable test equipment. |
| Temperature Stability | 20ppm/°C (max) - maintains <±0.01% output error across industrial temperature range, supporting uncalibrated field deployments. |
| No External Capacitor Required | Fully internally compensated - saves ≥1.5mm² PCB area per unit and removes capacitor aging/reliability variables in long-life medical devices. |
| Supply-Current Independence | ≤8µA/V variation over 4.296–12.6V input - ensures predictable battery drain regardless of battery voltage sag during discharge. |
| Low Dropout | 200mV (max) at 1mA - enables direct connection to 4.3V buck converter output without additional LDO, reducing BOM count and power loss. |
Applications
| Portable Digital Multimeters (DMMs) | Handheld Precision Data Loggers |
|---|---|
Use Scenario: Battery-powered handheld DMM measuring DC voltage with 0.1% basic accuracy. IC Role / Device Role / Timing Role: Provides 4.096V reference for 12-bit SAR ADC, setting full-scale range and enabling ratiometric measurement against internal shunt. Use Value: ±0.4% initial accuracy and 20ppm/°C drift ensure pass/fail compliance with IEC 61010-1 without recalibration across operating temperature. |
Use Scenario: Low-power environmental sensor node logging temperature/humidity every 10 seconds for 5+ years on two AA cells. IC Role / Device Role / Timing Role: Supplies stable reference to sigma-delta ADC and microcontroller's internal ADC for calibrated sensor readouts. Use Value: 90µA quiescent current extends battery life beyond 5 years; no output capacitor reduces component count and failure modes. |
| Industrial 4–20mA Transmitter Modules | Medical Patient Monitor Front-Ends |
Use Scenario: Loop-powered 4–20mA transmitter converting RTD or thermocouple signals in hazardous locations. IC Role / Device Role / Timing Role: Generates precise 4.096V reference for excitation current source and ADC conversion in isolated analog front-end. Use Value: 5mA sourcing capability drives 2-wire RTD bridges directly; low dropout allows operation from minimal loop voltage headroom (~4.3V). |
Use Scenario: Portable ECG/SpO₂ monitor requiring FDA-grade signal fidelity and 72-hour runtime on rechargeable LiPo. IC Role / Device Role / Timing Role: Supplies low-noise reference to 16-bit delta-sigma ADC digitizing biopotential signals with <1µV RMS noise floor. Use Value: 50µVp-p (0.1–10Hz) noise and 72dB PSRR prevent mains-borne interference from degrading diagnostic waveform integrity. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3440BRJZ-R7 | 4.096V output, ±0.1% initial accuracy, 10ppm/°C TC, 120µA IQ, SOT23-3 | Higher accuracy and lower drift, but 33% higher quiescent current - better for lab-grade instruments, less optimal for multi-year battery life. | Select ADR3440BRJZ-R7 when absolute initial accuracy dominates over battery life; verify layout compatibility with identical pinout. |
| REF3040AIDBZR | 4.096V output, ±0.2% initial accuracy, 50ppm/°C TC, 50µA IQ, SOT23-3 | Lower quiescent current but higher tempco - suitable for cost-sensitive consumer devices where ambient temperature is controlled. | Select REF3040AIDBZR only in temperature-stable environments (e.g., indoor IoT); MAX6064BEUR-T preferred for wide-temperature field use. |
Compared with ADR3440BRJZ-R7 and REF3040AIDBZR, the MAX6064BEUR-T delivers the best balance of industrial-grade temperature stability (20ppm/°C), ultra-low supply current (90µA), and proven robustness in battery-critical portable instrumentation - without requiring layout changes or additional support components.
Availability
MAX6064BEUR-T is available at Aetrix Electronics and suitable for portable instrumentation, precision data acquisition, and industrial sensor transmitters requiring stable component supply with guaranteed long-term availability and traceable lot control.
Supply support for MAX6064BEUR-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 reliability and integration for demanding industrial and medical systems.
The MAX6061–MAX6068 family was engineered specifically for battery-operated, space-constrained systems needing high-accuracy voltage references without external compensation - targeting portable test equipment, sensor nodes, and medical diagnostics.
FAQ
What is the guaranteed initial accuracy of the MAX6064BEUR-T?
The MAX6064BEUR-T has a guaranteed initial accuracy of ±0.4% (max) at +25°C, corresponding to the 'B' grade in Maxim's ordering nomenclature. This specification applies across the full –40°C to +85°C operating temperature range and is verified during 100% production testing. The MAX6064BEUR-T output voltage is specified as 4.080V to 4.112V at room temperature.
Does the MAX6064BEUR-T require an external output capacitor for stability?
No, the MAX6064BEUR-T does not require an external output capacitor for stability due to its fully internal compensation. It remains stable with capacitive loads ranging from 0 to ≥1µF. An optional 0.1µF ceramic capacitor may be added to improve transient response under large load steps, but it is never mandatory - a key advantage for ultra-compact PCB layouts.
What is the minimum input voltage required for proper operation of the MAX6064BEUR-T?
The MAX6064BEUR-T requires a minimum input voltage of VOUT + 200mV = 4.296V to maintain regulation at 1mA load. Its absolute maximum input is +12.6V. The device operates across this full range with only 8µA/V variation in supply current, ensuring consistent battery drain regardless of input voltage level.
Can the MAX6064BEUR-T sink current, and how much?
Yes, the MAX6064BEUR-T can sink up to 2mA of load current while maintaining output regulation and specified accuracy. This capability supports applications such as active pull-down of ADC reference inputs during power-down sequencing or biasing of current-sinking sensor interfaces - all without requiring external transistors or additional supply rails.
How does the MAX6064BEUR-T compare to shunt voltage references in terms of supply efficiency?
Unlike shunt references that waste current through a series resistor, the MAX6064BEUR-T draws only ~90µA quiescent current independent of load - even when sinking or sourcing up to 5mA. This architecture avoids fixed bias current overhead, maximizing battery life in intermittent-use devices like handheld meters and wireless sensors where load current is dynamic and often near-zero.
MAX6064BEUR-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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.4%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 50µVp-p
- Noise - 10Hz to 10kHz:
- 50µVrms
- Voltage - Input:
- 4.296V ~ 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
MAX6064BEUR-T FAQ
1.How can I place an order for MAX6064BEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6064BEUR-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 MAX6064BEUR-T reliable?
The price and inventory of MAX6064BEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6064BEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6064BEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6064BEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6064BEUR-T?
MAX6064BEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6064BEUR-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 MAX6064BEUR-T?
For technical support, including MAX6064BEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6064BEUR-T requirements.
6.How does Aetrix verify that MAX6064BEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6064BEUR-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 MAX6064BEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6064BEUR-T?
All MAX6064BEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6064BEUR-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 MAX6064BEUR-T part is unused and in its original packaging.
Return procedure for MAX6064BEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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