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Analog Devices Inc./Maxim Integrated MAX6064BEUR
- Part No.:
- MAX6064BEUR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6064BEUR.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:845
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Product details
Overview
MAX6064BEUR from Maxim Integrated is a precision, micropower, low-dropout 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 input voltages as low as 4.296V (VOUT + 200mV), making it ideal for high-resolution ADC biasing in portable instrumentation.
For engineers reviewing the MAX6064BEUR datasheet, MAX6064BEUR pinout, MAX6064BEUR application, or MAX6064BEUR equivalent, key selection criteria include its 4.096V output compatibility with 12-bit DACs/ADCs, ultra-low quiescent current for battery longevity, dropout voltage ≤200mV at 1mA, absence of required output capacitor, and SOT23-3 footprint for space-constrained designs.
Technical Context
The MAX6064BEUR employs a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve high initial accuracy and low thermal drift. Its internal compensation eliminates need for external capacitors, and its supply current varies by only 3.2µA/V across 4.296V–12.6V input range.
As a three-terminal series-mode reference, it avoids the inefficiency of shunt-mode alternatives by drawing load-dependent current only when required - enabling stable operation with capacitive loads and step-load transients without oscillation or overshoot.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.4% (max) at +25°C - matches standard 12-bit full-scale reference for SAR and sigma-delta ADCs |
| Temperature Coefficient | 20ppm/°C (max) - ensures ≤±0.82mV drift over –40°C to +85°C ambient, critical for precision measurement |
| Dropout Voltage | ≤200mV at 1mA load - enables operation from 4.296V input, supporting single-cell Li-ion or dual-cell alkaline systems |
| Quiescent Supply Current | 90µA (typ), ≤125µA (max) - extends battery life in always-on portable devices beyond 10 years at 10µA average system load |
| Load Regulation | 0.5–0.9mV/mA sourcing - maintains <±0.1% output stability across full 0–5mA load range, essential for sensor excitation |
| Noise (0.1Hz–10Hz) | 50µVp-p - contributes <0.012% of full-scale error in 4.096V-referenced 16-bit ADCs |
| Line Regulation | 130µV/V (max) - limits input ripple sensitivity to <0.003% per volt, simplifying power-supply filtering |
Pinout & Package
MAX6064BEUR is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 0.8mm footprint and 0.95mm height - optimized for automated placement and high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 4.296V–12.6V; requires no series resistor; bypassing with 0.1µF ceramic improves line-transient response |
| 2 (OUT) | Precision Reference Output | Delivers regulated 4.096V; stable with 0–1µF capacitive loads; no external compensation capacitor needed |
| 3 (GND) | Analog Ground Reference | Must be connected directly to low-impedance system ground plane; separates reference return from digital/power ground paths |
Key Features
| Feature | Design Value |
|---|---|
| Initial Accuracy | ±0.4% (max) - eliminates factory calibration for mid-precision data acquisition systems |
| Temperature Stability | 20ppm/°C (max) - meets industrial-grade drift requirements without external compensation |
| Output Drive Capability | Sources 5mA / sinks 2mA - directly drives ADC reference inputs, op-amp buffers, or low-power DACs |
| Capacitor-Free Operation | No mandatory output capacitor - saves board area and BOM cost in space-critical handheld devices |
| Supply Current Efficiency | 90µA typical, supply-voltage independent - reduces wasted current vs. shunt references, especially at higher VIN |
Applications
| Portable DMM Front-End | Industrial Sensor Transmitter |
|---|---|
Use Scenario: Handheld digital multimeter requiring stable 4.096V reference for 12-bit ADC digitization of mV-range thermocouple and resistance measurements. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion core and analog front-end gain calibration. Use Value: ±0.4% initial accuracy and 20ppm/°C drift ensure <±0.1% total measurement error across operating temperature, eliminating field recalibration. |
Use Scenario: 4–20mA loop-powered pressure transmitter with integrated signal conditioning and microcontroller-based linearization. IC Role / Device Role / Timing Role: Precision reference for ratiometric bridge excitation and ADC reference in isolated analog section. Use Value: 5mA sourcing capability enables direct bridge biasing; low 90µA quiescent current preserves loop margin below 3.5mA minimum compliance. |
| Medical Pulse Oximeter | Wireless IoT Node ADC |
Use Scenario: Battery-operated wearable pulse oximeter using dual-wavelength photodiode sensing with synchronous sampling. IC Role / Device Role / Timing Role: Stable reference for correlated double-sampling ADC and LED current DAC control. Use Value: 50µVp-p (0.1Hz–10Hz) noise minimizes baseline wander in DC-coupled SpO₂ calculation; SOT23-3 footprint fits sub-10cm² PCB. |
Use Scenario: Sub-GHz wireless sensor node performing periodic temperature/humidity readings before RF transmission. IC Role / Device Role / Timing Role: Low-power reference for SAR ADC during active measurement phase; disabled during sleep. Use Value: 90µA supply current and no required output cap reduce wake-up time and energy per conversion, extending coin-cell lifetime to >5 years. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF3040AIDBZR | 4.096V, ±0.2% initial accuracy, 50ppm/°C max TC, 50µA IQ, SOT23-3 | Lower quiescent current but higher tempco; less suitable for wide-temperature industrial use | Prefer for ultra-low-power sleep-dominated systems where temperature range is limited to 0°C–70°C |
| ADR3440ARJZ-R7 | 4.096V, ±0.1% initial accuracy, 10ppm/°C max TC, 120µA IQ, SOT23-3 | Higher precision and lower drift, but 33% higher supply current and tighter layout sensitivity | Choose when metrology-grade accuracy is required and board space allows minor layout optimization |
Compared with REF3040AIDBZR and ADR3440ARJZ-R7, the MAX6064BEUR delivers optimal balance of industrial-grade temperature stability (20ppm/°C), moderate initial accuracy (±0.4%), and ultra-low 90µA supply current - making it uniquely suited for battery-powered test equipment and sensor transmitters needing robust performance across –40°C to +85°C without design compromises.
Availability
MAX6064BEUR is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, medical wearables, and wireless IoT nodes requiring stable component supply with guaranteed long-term availability and traceable lot-level documentation.
Supply support for MAX6064BEUR 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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, medical, and communications applications.
The MAX6061–MAX6068 family was designed specifically for space- and power-constrained precision systems requiring accurate, low-drift, low-quiescent-current voltage references in ultra-small SOT23-3 packages.
FAQ
What is the maximum input voltage rating for MAX6064BEUR?
The absolute maximum input voltage for MAX6064BEUR is +13.5V referenced to GND. However, the recommended operating range is (VOUT + 0.2V) to +12.6V - i.e., 4.296V to 12.6V - to ensure specified performance including line regulation, dropout, and thermal stability. Exceeding 12.6V may degrade long-term reliability even if within absolute ratings.
Does MAX6064BEUR require an output capacitor for stability?
No, MAX6064BEUR does not require an output capacitor for stability - its internal compensation ensures unconditional stability with capacitive loads from 0 to 1µF. An optional 0.1µF ceramic capacitor can be added to improve transient response during large load steps, but omission saves board area and BOM cost without compromising functionality.
What is the dropout voltage specification for MAX6064BEUR at full load?
The dropout voltage for MAX6064BEUR is specified as ≤200mV at 1mA load current. At its full sourcing capability of 5mA, measured dropout remains ≤200mV under typical conditions, enabling reliable operation down to 4.296V input - critical for single-cell Li-ion (3.0–4.2V) systems with boost pre-regulation or dual-cell alkaline supplies.
How does the temperature coefficient of MAX6064BEUR impact 12-bit ADC accuracy?
With a max temperature coefficient of 20ppm/°C, MAX6064BEUR contributes ≤±0.82mV drift over –40°C to +85°C. Referenced to its 4.096V output, this equals ±0.02% full-scale error - equivalent to <±0.8 LSB in a 12-bit system - well within typical industrial ADC INL specifications and sufficient for uncalibrated end equipment.
Can MAX6064BEUR sink current, and what is its maximum sink capability?
Yes, MAX6064BEUR can actively sink up to 2mA of load current - a key differentiator from many series references. This enables bidirectional reference buffering, active pull-down in ratiometric sensor circuits, and compatibility with op-amps requiring sink capability in reference buffer stages, all while maintaining specified accuracy and noise performance.
MAX6064BEUR 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:
- 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 FAQ
1.How can I place an order for MAX6064BEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6064BEUR 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 reliable?
The price and inventory of MAX6064BEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6064BEUR is usually 5 days.
3.What payment methods are accepted for MAX6064BEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6064BEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6064BEUR?
MAX6064BEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6064BEUR 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?
For technical support, including MAX6064BEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6064BEUR requirements.
6.How does Aetrix verify that MAX6064BEUR is sourced from the original manufacturer or authorized distributors?
All MAX6064BEUR 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 meets industry standards.
7.What is the process for return or replacement of MAX6064BEUR?
All MAX6064BEUR units undergo pre-shipment inspection (PSI). If there is an issue with MAX6064BEUR, 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 part is unused and in its original packaging.
Return procedure for MAX6064BEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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