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Analog Devices Inc./Maxim Integrated MAX6065AEUR-T
- Part No.:
- MAX6065AEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6065AEUR-T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,262
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Product details
Overview
The MAX6065AEUR-T from Maxim Integrated is a precision, micropower, low-dropout series voltage reference delivering a stable 5.000V 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, draws only 90µA typical supply current, and operates with as little as 5.2V input (VOUT + 0.2V), making it ideal for high-accuracy 5V analog signal chains in portable instrumentation.
For engineers reviewing the MAX6065AEUR-T datasheet, MAX6065AEUR-T pinout, MAX6065AEUR-T application, or MAX6065AEUR-T equivalent, key selection criteria include its guaranteed 5.000V output tolerance, ultra-low 90µA quiescent current, dropout voltage ≤200mV at 1mA, absence of required output capacitor, and SOT23-3 package compatibility with space-constrained PCB layouts.
Technical Context
This three-terminal series voltage reference uses 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 supply current varies by only 3.2–8.0 µA/V across 5.2V–12.6V input range.
Designed for operation from VIN = VOUT + 0.2V (min), it maintains regulation under sourcing (0–5mA) and sinking (–2mA to 0) loads while exhibiting 65dB PSRR at 120Hz and 130ppm output voltage hysteresis after thermal cycling.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.2% (max) at +25°C - ensures ADC full-scale reference stability within 10mV absolute error |
| Temp Coefficient | 20ppm/°C (max) - contributes ≤1mV drift over –40°C to +85°C ambient range |
| Dropout Voltage | ≤200mV at 1mA load - enables operation from 5.2V supply in 5V systems with minimal headroom |
| Quiescent Current | 90µA (typ), ≤125µA (max) - extends battery life in always-on sensor nodes |
| Load Current | Sources 5mA / sinks 2mA - drives SAR ADC references, op-amp bias networks, and DAC buffers directly |
| Noise (0.1–10Hz) | 60µVp-p - supports 16-bit+ precision measurement without added filtering |
| PSRR | 65dB at 120Hz - rejects ripple from switching regulators feeding the reference input |
Pinout & Package
MAX6065AEUR-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with pin 1 = IN, pin 2 = OUT, pin 3 = GND. The package measures 2.9mm × 1.6mm × 1.1mm and is RoHS-compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input voltage supply | Accepts 5.2V to 12.6V; requires no series resistor; bypassing with 0.1µF ceramic improves line transient response |
| 2 (OUT) | Precision reference output | Delivers regulated 5.000V; stable with capacitive loads ≥0.1µF; no external compensation capacitor needed |
| 3 (GND) | Analog ground reference | Must be connected to clean system ground plane; separates reference return from high-current paths to minimize noise coupling |
Key Features
| Feature | Design Value |
|---|---|
| ±0.2% initial accuracy | Reduces calibration burden in factory-trimmed 5V data acquisition systems |
| No output capacitor required | Eliminates 1–2 passive components and associated board area in compact handheld devices |
| Stable with capacitive loads | Enables direct connection to ADC input caps or op-amp feedback networks without oscillation risk |
| 90µA typical supply current | Supports >1-year battery life in coin-cell-powered IoT sensors drawing <1µA average system current |
| 200mV max dropout at 1mA | Permits use with LDOs or buck converters operating near 5V nominal output |
Applications
| Portable DMM Front-End | Industrial 5V Data Logger |
|---|---|
Use Scenario: High-impedance voltage measurement channel in handheld digital multimeters requiring stable 5V reference for 16-bit SAR ADC. IC Role / Device Role / Timing Role: Primary voltage reference for ADC conversion and internal analog front-end biasing. Use Value: ±0.2% initial accuracy and 20ppm/°C drift ensure <0.02% total error contribution over operating temperature, meeting Class II DMM specifications. | Use Scenario: Battery-backed environmental monitoring node logging temperature, humidity, and pressure using multiple 5V-sensing ICs. IC Role / Device Role / Timing Role: Central 5V reference source shared across ADC, sensor signal conditioning, and microcontroller VREF inputs. Use Value: 90µA quiescent current minimizes standby power draw, extending 3.6V Li-ion battery life beyond 2 years in low-duty-cycle deployments. |
| Medical Point-of-Care Glucometer | Automotive Body Control Module Sensor Interface |
Use Scenario: Electrochemical test strip reader requiring precise 5V excitation and measurement reference under varying ambient temperatures. IC Role / Device Role / Timing Role: Dual-role reference: supplies excitation voltage and ADC reference for current-to-voltage conversion. Use Value: 130ppm hysteresis and 60µVp-p low-frequency noise prevent false glucose concentration readings during repeated on/off cycles. | Use Scenario: Reference for analog sensor interfaces (e.g., pressure, position) in 5V automotive body control modules operating across –40°C to +85°C. IC Role / Device Role / Timing Role: Precision 5V rail for ratiometric sensor excitation and ADC reference in ASIL-B compliant subsystems. Use Value: Guaranteed –40°C to +85°C operation with 20ppm/°C TC meets AEC-Q100 Grade 3 requirements without derating. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3450ARJZ-R7 | 5.0V output, ±0.1% initial accuracy, 10ppm/°C TC, 4.5µA supply current, SC70-5 package | Lower power but higher cost; requires external decoupling; not pin-compatible | Select when ultra-low quiescent current (<5µA) is critical and board area allows SC70-5 footprint |
| REF5050AIDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C TC, 950µA supply current, SOIC-8 package | Higher precision and stability but 10× higher supply current; larger package; external capacitor required | Select for metrology-grade applications where long-term drift and thermal hysteresis must be minimized at expense of power and size |
Compared with ADR3450ARJZ-R7 and REF5050AIDR, the MAX6065AEUR-T offers optimal balance of 5V precision (±0.2%), micropower operation (90µA), and ultra-small SOT23-3 footprint-making it preferred for cost-sensitive, space-constrained, battery-operated 5V systems where sub-0.1% accuracy is unnecessary.
Availability
MAX6065AEUR-T is available at Aetrix Electronics and suitable for portable instrumentation, industrial data loggers, medical point-of-care devices, and automotive sensor interfaces requiring stable component supply with consistent parametric performance across production lots.
Supply support for MAX6065AEUR-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 battery-powered, space-constrained systems needing high-accuracy, low-drift, low-power voltage references in ultra-small SOT23 packages - targeting portable test equipment, wearables, and remote sensing nodes.
FAQ
What is the minimum input voltage required for stable operation of the MAX6065AEUR-T?
The MAX6065AEUR-T requires a minimum input voltage of VOUT + 0.2V = 5.2V to maintain regulation at 1mA load, per the datasheet's dropout specification. At lighter loads, it may operate slightly below this threshold, but 5.2V is the guaranteed minimum across –40°C to +85°C. The MAX6065AEUR-T is not functional below 5.2V under full-load conditions.
Does the MAX6065AEUR-T require an external output capacitor for stability?
No, the MAX6065AEUR-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. An optional 0.1µF ceramic capacitor may be added to improve transient response in high-dynamic-load applications, but it is not necessary for basic regulation.
What is the guaranteed initial accuracy of the MAX6065AEUR-T at +25°C?
The MAX6065AEUR-T is specified with ±0.2% (max) initial output voltage accuracy at +25°C, corresponding to a 5.000V output tolerance of 4.990V to 5.010V. This grade ('A' suffix) is tighter than the 'B' grade (±0.4%), and applies across the full –40°C to +85°C operating temperature range.
How does the supply current of the MAX6065AEUR-T vary with input voltage?
The MAX6065AEUR-T exhibits a supply current variation of only 3.2–8.0 µA/V across its 5.2V–12.6V input range, meaning total change is ≤60µA over full VIN span. This near-constant current behavior - unlike shunt references - maximizes efficiency and simplifies power budgeting in battery-powered systems using the MAX6065AEUR-T.
Can the MAX6065AEUR-T sink current, and if so, how much?
Yes, the MAX6065AEUR-T can sink up to 2mA of load current while maintaining regulation. This capability allows it to serve as a bidirectional reference in circuits requiring active pull-down (e.g., certain DAC buffer configurations or programmable gain amplifier references), distinguishing it from many fixed-output shunt references that only source current.
MAX6065AEUR-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):
- 5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 60µVp-p
- Noise - 10Hz to 10kHz:
- 60µVrms
- Voltage - Input:
- 5.2V ~ 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
MAX6065AEUR-T FAQ
1.How can I place an order for MAX6065AEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6065AEUR-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 MAX6065AEUR-T reliable?
The price and inventory of MAX6065AEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6065AEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6065AEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6065AEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6065AEUR-T?
MAX6065AEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6065AEUR-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 MAX6065AEUR-T?
For technical support, including MAX6065AEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6065AEUR-T requirements.
6.How does Aetrix verify that MAX6065AEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6065AEUR-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 MAX6065AEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6065AEUR-T?
All MAX6065AEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6065AEUR-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 MAX6065AEUR-T part is unused and in its original packaging.
Return procedure for MAX6065AEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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