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Analog Devices Inc./Maxim Integrated MAX6065AEUR
- Part No.:
- MAX6065AEUR
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6065AEUR.pdf
- Description:
- VOLTAGE REFERENCE
- Quantity:
- Payment:
- Shipping:
Inventory:1,150
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Product details
Overview
MAX6065AEUR 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 down to 5.2V input (VOUT + 0.2V), making it ideal for high-accuracy 5V analog front-ends in portable instrumentation.
For engineers reviewing the MAX6065AEUR datasheet, MAX6065AEUR pinout, MAX6065AEUR application, or MAX6065AEUR equivalent, this device offers verified performance in battery-powered precision ADC biasing, low-voltage 5V system regulation, and space-constrained industrial sensor signal conditioning-where ultra-low quiescent current, no external capacitor requirement, and tight thermal drift are critical selection criteria.
Technical Context
The MAX6065AEUR is a three-terminal, series-mode voltage reference using proprietary curvature-correction circuitry and laser-trimmed thin-film resistors to achieve 20ppm/°C max TCVOUT and ±0.2% max initial error. Its internal compensation eliminates need for external output capacitance, and its supply current varies by only ≤8µA/V across 5.2V–12.6V input range.
It delivers 5.000V output with 50mV (typ) dropout at 1mA load, supports capacitive loads without instability, and exhibits 60µVp-p (0.1Hz–10Hz) noise and 65dB PSRR at 120Hz-enabling direct use in high-resolution SAR and delta-sigma ADC reference paths without additional filtering.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.2% (max) at +25°C - ensures direct compatibility with 5V ADC full-scale ranges and eliminates calibration offset due to reference error. |
| Temp. Coefficient | 20ppm/°C (max) - limits output drift to ±1.5mV over –40°C to +85°C, critical for uncalibrated field-deployed sensors. |
| Quiescent Current | 90µA (typ), ≤125µA (max) - enables >1-year battery life in coin-cell-powered data loggers drawing <10µA average system current. |
| Dropout Voltage | 50mV (max) at 1mA load - allows operation from single Li-ion cell (≥3.3V) or regulated 5.2V rail with minimal headroom loss. |
| Load Drive | Sources 5mA / sinks 2mA - directly drives ADC reference inputs, op-amp bias networks, and small DACs without buffer amplifiers. |
| Noise (0.1–10Hz) | 60µVp-p - contributes <0.0012% of full-scale error in 16-bit 5V ADCs, avoiding resolution degradation. |
| PSRR @ 120Hz | 65dB - suppresses ripple from switching regulators feeding the reference, reducing AC-coupled measurement artifacts. |
Pinout & Package
MAX6065AEUR is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 2.9mm footprint and 1.0mm height-optimized for high-density PCB layouts in handheld test equipment and IoT edge nodes.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply Terminal | Accepts 5.2V to 12.6V DC input; requires no series resistor; internal regulation maintains constant current draw independent of VIN. |
| 2 (OUT) | Precision Reference Output | Delivers stable 5.000V; electrically isolated from IN/GND; capable of sourcing/sinking load current without external components. |
| 3 (GND) | Analog Ground Reference | Must be connected to clean system AGND plane; separates reference core from digital noise; no separate VREF return path required. |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Internally compensated architecture eliminates mandatory 1µF output cap-reducing BOM count and saving ≥1.5mm² board area per unit. |
| Stable with capacitive loads | Remains stable driving 0–1µF loads-enables direct connection to ADC reference pins with decoupling caps without oscillation risk. |
| Supply-current independence | ΔIIN/ΔVIN ≤ 8µA/V - avoids dynamic power supply interaction in multi-rail systems where VIN may vary during operation. |
| Low dropout at full load | 200mV (max) dropout at 1mA - permits use with LDOs having tight tolerance on 5.2V output, improving overall power chain efficiency. |
| Long-term stability | 62ppm/1000hr - ensures <0.03% output shift over 1 year, supporting maintenance-free deployment in remote monitoring hardware. |
Applications
| Portable DMM Front-End | Industrial 5V Sensor Transmitter |
|---|---|
Use Scenario: Handheld digital multimeter measuring DC voltage with 16-bit resolution and auto-ranging. IC Role / Device Role / Timing Role: Primary 5V reference for SAR ADC and internal precision attenuator scaling. Use Value: ±0.2% initial accuracy and 20ppm/°C drift eliminate factory recalibration; 90µA supply current extends alkaline battery life to >500 hours. |
Use Scenario: Loop-powered 4–20mA transmitter with onboard temperature/pressure sensing and 5V analog signal conditioning. IC Role / Device Role / Timing Role: Stable 5V reference for sensor excitation and ADC conversion in harsh industrial environments. Use Value: 62ppm/1000hr long-term stability ensures 12-month calibration validity; SOT23-3 footprint fits compact DIN-rail module PCBs. |
| Medical Patient Monitor ADC | Battery-Powered Data Logger |
Use Scenario: Portable ECG/SpO₂ monitor digitizing biopotential signals with 24-bit delta-sigma ADC. IC Role / Device Role / Timing Role: Low-noise 5V reference for ADC reference input and op-amp biasing in analog front-end. Use Value: 60µVp-p (0.1–10Hz) noise prevents LSB flicker in 24-bit measurements; no output cap simplifies layout near sensitive analog traces. |
Use Scenario: Remote environmental logger powered by CR2032 coin cell, sampling temperature/humidity every 10 minutes. IC Role / Device Role / Timing Role: Precision 5V reference enabling accurate sensor excitation and ADC conversion during brief active periods. Use Value: 90µA quiescent current minimizes standby drain; 5.2V minimum input allows operation until battery drops to 2.8V under load. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3450ARJZ-R7 | 5.0V output, ±0.1% initial accuracy, 10ppm/°C TCVOUT, 4.5µA quiescent current, but only 10mA max source current and requires 1µF output cap for stability. | Better accuracy and lower drift, but higher drive capability comes with mandatory output capacitance-increasing board area and complicating layout near noise-sensitive nodes. | Select ADR3450ARJZ-R7 when ultimate initial accuracy and thermal stability outweigh board space constraints and design simplicity. |
| REF5050AIDR | 5.0V output, ±0.05% initial accuracy, 3ppm/°C TCVOUT, 950µA quiescent current, SOIC-8 package, requires 1µF output cap and 10µF input bypass. | Ultra-high precision for lab-grade instruments, but 10× higher supply current and larger SOIC-8 footprint make it unsuitable for portable or space-limited designs. | Select REF5050AIDR only for benchtop equipment where power and size are secondary to metrology-grade reference performance. |
Compared with ADR3450ARJZ-R7 and REF5050AIDR, MAX6065AEUR provides optimal balance of precision (±0.2%), ultra-low quiescent current (90µA), and zero-output-capacitor operation in the smallest possible SOT23-3 package-making it the preferred choice for production-volume portable and industrial 5V reference applications where reliability, size, and battery life are co-prioritized.
Availability
MAX6065AEUR is available at Aetrix Electronics and suitable for portable instrumentation, industrial sensor transmitters, and medical patient monitors requiring stable component supply with guaranteed long-term availability and traceable lot control.
Supply support for MAX6065AEUR 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, automotive, and communications markets.
The MAX6061–MAX6068 family was designed specifically for space-constrained, battery-operated systems needing precision voltage references with micropower consumption, low dropout, and no external compensation-targeting portable test equipment, sensor modules, and energy-harvesting nodes.
FAQ
What is the minimum input voltage required for stable operation of MAX6065AEUR?
The MAX6065AEUR requires a minimum input voltage of 5.2V (VOUT + 0.2V) to maintain regulation and specified performance across temperature and load. At 1mA load, dropout is typically 50mV, so operation is guaranteed down to 5.2V input. Below this, output voltage collapses nonlinearly and specifications no longer apply.
Does MAX6065AEUR require an external output capacitor for stability?
No, MAX6065AEUR does not require an external output capacitor for stability. Its internally compensated architecture remains stable with 0–1µF capacitive loads, eliminating a common BOM item and saving PCB area. An optional 0.1µF ceramic capacitor may be added to improve transient response if step-load changes exceed 2mA.
What is the maximum load current MAX6065AEUR can source or sink?
MAX6065AEUR can continuously source up to 5mA and sink up to 2mA while maintaining output voltage within specification. Exceeding these limits causes increased dropout voltage and potential deviation from ±0.2% accuracy. For loads >2mA sinking, verify thermal derating in the target ambient environment.
How does MAX6065AEUR's supply current vary with input voltage?
MAX6065AEUR's quiescent supply current varies by ≤8µA/V across its 5.2V–12.6V input range, resulting in a total variation of ≤60µA. This near-constant current draw-unlike shunt references-simplifies power budgeting and avoids interaction with upstream regulators or battery discharge curves.
Is MAX6065AEUR compatible with lead-free reflow soldering processes?
Yes, MAX6065AEUR in the SOT23-3 package is rated for standard lead-free reflow profiles (JEDEC J-STD-020), including peak temperatures up to +260°C for 30 seconds. The device meets RoHS compliance and has been qualified for MSL Level 1 moisture sensitivity-no bake-out required prior to assembly.
MAX6065AEUR 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):
- 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 FAQ
1.How can I place an order for MAX6065AEUR through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6065AEUR 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 reliable?
The price and inventory of MAX6065AEUR are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6065AEUR is usually 5 days.
3.What payment methods are accepted for MAX6065AEUR?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6065AEUR transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6065AEUR?
MAX6065AEUR orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6065AEUR 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?
For technical support, including MAX6065AEUR datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6065AEUR requirements.
6.How does Aetrix verify that MAX6065AEUR is sourced from the original manufacturer or authorized distributors?
All MAX6065AEUR 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 meets industry standards.
7.What is the process for return or replacement of MAX6065AEUR?
All MAX6065AEUR units undergo pre-shipment inspection (PSI). If there is an issue with MAX6065AEUR, 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 part is unused and in its original packaging.
Return procedure for MAX6065AEUR:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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