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Analog Devices Inc./Maxim Integrated MAX6064AEUR+T
- Part No.:
- MAX6064AEUR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6064AEUR+T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:6,792
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Product details
Overview
MAX6064AEUR+T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 4.096V output with ±0.2% 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 down to 4.296V input (VOUT + 200mV), making it ideal for high-resolution ADC biasing in portable instrumentation.
For engineers reviewing the MAX6064AEUR+T datasheet, MAX6064AEUR+T pinout, MAX6064AEUR+T application, or MAX6064AEUR+T equivalent, key selection criteria include its guaranteed 4.096V output tolerance, ultra-low quiescent current independent of input voltage, absence of required output capacitor, and SOT23-3 footprint compatibility with space-constrained battery-powered designs.
Technical Context
The MAX6064AEUR+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 capacitors, and its supply current varies by only ≤8µA/V across 4.296V–12.6V input range.
It delivers 4.096V with 50mV max dropout at 1mA load and maintains stability with capacitive loads - critical for driving SAR ADC reference inputs and precision sensor signal chains where low noise (50µVp-p, 0.1Hz–10Hz) and high PSRR (72dB at 120Hz) are required.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.2% (max) at +25°C - enables direct interface with 12-bit ADCs requiring exact VREF = VDD/2 or 4.096V full-scale calibration. |
| Temp Coefficient | ≤20ppm/°C (max) - ensures <±0.17% output drift over –40°C to +85°C, suitable for industrial-grade measurement systems. |
| Quiescent Current | 90µA (typ), ≤125µA (max) - minimizes battery drain in always-on portable devices; variation ≤8µA/V supports wide input range without efficiency penalty. |
| Dropout Voltage | 50mV (typ), 200mV (max) at 1mA - allows operation from single Li-ion cell (≥4.296V) or regulated 5V rail with minimal headroom loss. |
| Load Current | Sources 5mA / sinks 2mA - drives medium-current ADC references, op-amp bias networks, or DAC buffers without external gain stages. |
| Noise (0.1–10Hz) | 50µVp-p - low enough to avoid degrading ENOB in 16-bit+ data acquisition systems. |
| PSRR | 72dB at 120Hz - suppresses ripple from switching regulators feeding the reference input. |
Pinout & Package
MAX6064AEUR+T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 1.45mm height - optimized for high-density PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 - IN | Input voltage supply | Accepts 4.296V to 12.6V; requires no series resistor; bypass capacitor (0.1µF) recommended for line-transient immunity. |
| 2 - OUT | Precision reference output | Delivers regulated 4.096V; stable with 0–1µF capacitive loads; no external compensation needed. |
| 3 - GND | Analog ground reference | Must be connected to clean system ground plane; separates reference return from noisy digital or power grounds. |
Key Features
| Feature | Design Value |
|---|---|
| Initial accuracy | ±0.2% (max) - eliminates factory calibration for many 12-bit applications and reduces BOM cost vs. higher-grade references. |
| No output capacitor required | Internally compensated - saves board area and component count in wearables, handheld meters, and IoT edge nodes. |
| Low dropout | 200mV (max) at 1mA - enables use with buck-boost or LDO outputs near VOUT, extending usable battery voltage range. |
| Capacitive load stability | Stable with 0–1µF output capacitance - simplifies design when driving ADC sample-and-hold or op-amp buffers with parasitic capacitance. |
| Supply current independence | ≤8µA/V variation - ensures predictable power budget across varying input rails (e.g., aging battery or unregulated supply). |
Applications
| Portable DMM Front-End | Industrial 4–20mA Transmitter |
|---|---|
|
Use Scenario: Precision 4.096V reference for 16-bit sigma-delta ADC measuring mV-level sensor signals in handheld multimeters. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion, setting full-scale range and enabling ratiometric measurements against internal reference. Use Value: ±0.2% initial accuracy and 20ppm/°C drift ensure <±0.02% total error over operating temperature, meeting Class II DMM specifications without recalibration. |
Use Scenario: Stable excitation and reference source for 4–20mA loop-powered pressure/temperature transmitters in factory automation. IC Role / Device Role / Timing Role: Dual-role reference: supplies excitation current to RTD/bridge sensors and sets DAC output scale for current loop control. Use Value: 90µA quiescent current and 5mA sourcing capability allow full functionality within 3.5mA loop budget while maintaining 12-bit linearity. |
| Battery-Powered Data Logger | Medical ECG Signal Chain |
|
Use Scenario: Reference for multi-channel SAR ADC sampling thermistors, accelerometers, and gas sensors in remote environmental monitors. IC Role / Device Role / Timing Role: Low-power, high-stability reference enabling >1-year battery life on coin-cell or Li-SOCl₂ batteries. Use Value: 200mV dropout and 90µA supply current permit operation down to 4.296V input, extracting maximum energy from declining battery voltage. |
Use Scenario: Reference for 24-bit delta-sigma ADC digitizing microvolt-level ECG waveforms in portable patient monitors. IC Role / Device Role / Timing Role: Ultra-low-noise (50µVp-p) analog reference establishing DC baseline and gain accuracy for front-end instrumentation amplifiers. Use Value: 50µVp-p 0.1–10Hz noise avoids obscuring P/QRS/T wave morphology; 72dB PSRR rejects switching noise from isolated DC-DC converters. |
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, but 120µA quiescent current and requires 1µF output capacitor. | Better accuracy and TC, but higher supply current and mandatory capacitor reduce suitability for ultra-low-power or space-constrained designs. | Select when absolute drift performance outweighs board area and battery life constraints. |
| REF3040AIDBZR | 4.096V output, ±0.2% initial accuracy, 50ppm/°C TC, 45µA quiescent current, no output capacitor required. | Lower quiescent current than MAX6064AEUR+T but higher temperature drift limits use in extended-temperature industrial environments. | Select for longest battery life in consumer-grade portable devices operating 0°C–70°C. |
Compared with ADR3440BRJZ-R7 and REF3040AIDBZR, the MAX6064AEUR+T uniquely balances ±0.2% accuracy, 20ppm/°C drift, 90µA supply current, and capacitor-free operation - making it optimal for industrial portable instruments needing robustness, efficiency, and compact layout simultaneously.
Availability
MAX6064AEUR+T is available at Aetrix Electronics and suitable for portable DMMs, industrial 4–20mA transmitters, and battery-powered data loggers requiring stable component supply, long-term parametric consistency, and SOT23-3 footprint compatibility.
Supply support for MAX6064AEUR+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 MAX6061–MAX6068 family was engineered specifically for high-accuracy, low-power, space-constrained voltage reference needs in portable and battery-operated measurement systems - emphasizing micropower operation, low dropout, and elimination of external components.
FAQ
What is the guaranteed output voltage tolerance for MAX6064AEUR+T over temperature?
The MAX6064AEUR+T guarantees ±0.2% initial accuracy at +25°C and maintains ≤20ppm/°C temperature coefficient over –40°C to +85°C, resulting in total output variation of ≤±0.17% across the full industrial temperature range. This is confirmed in the Electrical Characteristics table for MAX6064A grade under "Output Voltage Temperature Coefficient" and "Output Voltage" parameters.
Does MAX6064AEUR+T require an output capacitor for stability?
No, the MAX6064AEUR+T is internally compensated and does not require an external output capacitor for stability - a key differentiator from many competing references. It remains stable with 0–1µF capacitive loads, as stated in the "Features" and "Applications Information" sections of the datasheet.
What is the minimum input voltage required for MAX6064AEUR+T to regulate at full load?
The MAX6064AEUR+T requires a minimum input voltage of VOUT + 200mV = 4.296V to maintain regulation at 1mA load, per the Selector Guide and Electrical Characteristics table. Dropout voltage is specified as 50mV (typ) and 200mV (max) at 1mA, ensuring reliable operation from single-cell Li-ion or regulated 5V rails.
Can MAX6064AEUR+T sink current, and how much?
Yes, the MAX6064AEUR+T can sink up to 2mA of load current, as explicitly specified in the General Description and Electrical Characteristics tables. This bidirectional capability supports applications like active filtering, precision current sinking, or biasing circuits requiring controlled discharge paths.
What is the noise performance of MAX6064AEUR+T, and how does it impact high-resolution ADCs?
The MAX6064AEUR+T exhibits 50µVp-p noise in the 0.1Hz–10Hz band, as measured in the MAX6064-specific Electrical Characteristics table. This low noise floor prevents degradation of effective number of bits (ENOB) in 16-bit+ SAR and sigma-delta ADCs, especially in precision DC measurement applications like strain gauge or thermistor readouts.
MAX6064AEUR+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:
- Series
- Output Type:
- Fixed
- Voltage - Output (Min/Fixed):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°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
MAX6064AEUR+T FAQ
1.How can I place an order for MAX6064AEUR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6064AEUR+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 MAX6064AEUR+T reliable?
The price and inventory of MAX6064AEUR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6064AEUR+T is usually 5 days.
3.What payment methods are accepted for MAX6064AEUR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6064AEUR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6064AEUR+T?
MAX6064AEUR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6064AEUR+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 MAX6064AEUR+T?
For technical support, including MAX6064AEUR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6064AEUR+T requirements.
6.How does Aetrix verify that MAX6064AEUR+T is sourced from the original manufacturer or authorized distributors?
All MAX6064AEUR+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 MAX6064AEUR+T meets industry standards.
7.What is the process for return or replacement of MAX6064AEUR+T?
All MAX6064AEUR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6064AEUR+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 MAX6064AEUR+T part is unused and in its original packaging.
Return procedure for MAX6064AEUR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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