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Analog Devices Inc./Maxim Integrated MAX6065BEUR-T
- Part No.:
- MAX6065BEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6065BEUR-T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:2,855
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Product details
Overview
MAX6065BEUR-T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 5.000V 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 down to 5.2V input (VOUT + 200mV), making it ideal for battery-powered 5V precision ADCs and portable instrumentation.
For engineers reviewing the MAX6065BEUR-T datasheet, MAX6065BEUR-T pinout, MAX6065BEUR-T application, or MAX6065BEUR-T equivalent, this page delivers verified technical context, real-world design meaning for key specs, validated SOT23-3 pin mapping, application-specific value statements, and two confirmed alternative parts with documented functional and application-level differences.
Technical Context
The MAX6065BEUR-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 ultra-low thermal drift. Its internal compensation eliminates need for external capacitors, and its supply current varies by only ≤8µA/V across 5.2V–12.6V input range.
It features low 50–200mV dropout at 1mA load, 65dB power-supply rejection at 120Hz, and 300µs turn-on settling time to 0.1% of final value (COUT = 50pF). Output noise is 60µVp-p (0.1Hz–10Hz), and long-term stability is 62ppm/1000hr at +25°C.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 5.000V ±0.4% (max) at +25°C - ensures accurate full-scale reference for 12-bit+ 5V ADCs without calibration. |
| Temp Coefficient | 20ppm/°C (max) - limits output drift to ±1.7mV over –40°C to +85°C ambient, critical for field-deployed sensors. |
| Dropout Voltage | 50mV (typ) at 1mA load - enables operation from single Li-ion cell (4.2V) or 5V rail with minimal headroom loss. |
| Supply Current | 90µA (typ), ≤8µA/V variation - reduces quiescent power to <0.5mW at 5.5V, extending battery life in always-on devices. |
| Load Drive | Sources 5mA / sinks 2mA - directly drives SAR ADC reference inputs, op-amp bias networks, or small DACs without buffering. |
| Noise (0.1–10Hz) | 60µVp-p - contributes <0.0012% error to 5V full-scale, suitable for 16-bit precision measurement front-ends. |
| PSRR | 65dB at 120Hz - suppresses ripple from switching regulators feeding the reference, improving ADC SNR. |
Pinout & Package
MAX6065BEUR-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 0.8mm footprint and 0.95mm height - optimized for space-constrained portable PCBs.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 5.2V–12.6V; requires no series resistor (unlike shunt references); decoupling with 0.1µF ceramic recommended for line transients. |
| 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 analog ground plane; separates reference return from digital or power ground to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| ±0.4% Initial Accuracy | Reduces system calibration burden in factory test; enables single-point trim for 12-bit systems. |
| No Output Capacitor Required | Eliminates 1–2 passive components per channel, saving >0.5mm² board area in multi-channel sensor modules. |
| 20ppm/°C Tempco | Ensures <±2mV output shift across industrial temperature range - meets Class A accuracy for portable DMMs. |
| 90µA Quiescent Current | Supports >1-year battery life in coin-cell-powered IoT nodes drawing 10µA average system current. |
| 5mA Source Capability | Directly drives 12-bit SAR ADC reference pins (e.g., AD7980, ADS8860) without external buffer amplifier. |
Applications
| Portable Digital Multimeters (DMMs) | Handheld Gas Detectors |
|---|---|
Use Scenario: Battery-powered handheld DMM measuring DC voltage with 0.1% basic accuracy requirement. IC Role / Device Role: Primary 5V reference for dual-slope or sigma-delta ADC, setting full-scale range and gain calibration point. Use Value: ±0.4% initial accuracy and 20ppm/°C tempco ensure measurement repeatability across temperature shifts during field use without recalibration. |
Use Scenario: Low-power gas sensor node with electrochemical sensor and 16-bit ADC, operating on AA batteries for 2+ years. IC Role / Device Role: Stable 5V reference for ADC and analog front-end signal conditioning, enabling precise ppm-level gas concentration calculation. Use Value: 90µA supply current and no required output capacitor reduce total solution size and power, directly extending battery lifetime. |
| Industrial Data Loggers | Medical Patient Monitors |
Use Scenario: Ruggedized outdoor data logger recording temperature, pressure, and humidity using multiple 16-bit ADC channels. IC Role / Device Role: Shared 5V reference source for multiplexed ADC inputs, ensuring channel-to-channel gain matching. Use Value: 62ppm/1000hr long-term stability minimizes drift-induced calibration drift between scheduled maintenance intervals. |
Use Scenario: Portable ECG monitor requiring high-precision analog signal chain with low noise and tight gain accuracy. IC Role / Device Role: Reference for instrumentation amplifier gain-setting and ADC conversion, contributing to <1% total measurement uncertainty. Use Value: 60µVp-p (0.1–10Hz) noise and 65dB PSRR suppress power rail noise, preserving ECG signal fidelity and diagnostic reliability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF5050AIDBVR | 0.05% initial accuracy, 3ppm/°C tempco, 1.2mA supply current, SO-6 package | Higher precision and lower noise, but 13× higher quiescent current and larger footprint | Select when absolute accuracy and long-term stability outweigh battery life and board space constraints. |
| ADR3450ARJZ-R7 | 0.1% initial accuracy, 10ppm/°C tempco, 120µA supply current, SOT23-3 package | Similar form factor and supply current, but tighter accuracy and tempco than MAX6065BEUR-T | Choose when upgrading from B-grade to A-grade performance while retaining same PCB layout and thermal profile. |
Compared with REF5050AIDBVR and ADR3450ARJZ-R7, the MAX6065BEUR-T offers the lowest quiescent current in SOT23-3 for 5V references, trading modest accuracy for exceptional micropower efficiency - optimal for cost-sensitive, battery-limited designs where ±0.4% is sufficient.
Availability
MAX6065BEUR-T is available at Aetrix Electronics and suitable for portable instrumentation, battery-powered medical devices, and industrial data loggers requiring stable component supply with guaranteed long-term sourcing.
Supply support for MAX6065BEUR-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 miniaturization and energy efficiency.
The MAX6061–MAX6068 family was engineered specifically for space- and power-constrained systems needing high-accuracy voltage references without external compensation - targeting portable test equipment, medical wearables, and remote sensing nodes.
FAQ
What is the maximum input voltage rating for MAX6065BEUR-T?
The absolute maximum input voltage for MAX6065BEUR-T is +13.5V referenced to GND. However, the guaranteed operating range is 5.2V to 12.6V, where all electrical specifications-including line regulation, dropout, and supply current-are fully characterized and warranted across –40°C to +85°C.
Does MAX6065BEUR-T require an output capacitor for stability?
No, MAX6065BEUR-T does not require an output capacitor for stability due to internal compensation. It remains stable with capacitive loads up to 1µF. An optional 0.1µF ceramic capacitor may be added to improve transient response in applications with fast load steps, but it is not necessary for basic operation.
What is the dropout voltage specification for MAX6065BEUR-T at full load?
At 1mA load current, the dropout voltage for MAX6065BEUR-T is specified as 50mV (typical) and 200mV (maximum). This means the device maintains regulation as long as input voltage stays ≥5.2V (5.0V + 200mV), enabling reliable operation from aging batteries or marginally regulated supplies.
How does the supply current of MAX6065BEUR-T vary with input voltage?
MAX6065BEUR-T exhibits ≤8µA/V variation in supply current across its 5.2V–12.6V input range. At +25°C, typical supply current is 90µA and remains nearly constant - unlike shunt references, which draw current proportional to input voltage - maximizing efficiency across varying battery states.
Is MAX6065BEUR-T pin-compatible with other parts in the MAX6061–MAX6068 family?
Yes, all MAX6061–MAX6068 variants, including MAX6065BEUR-T, share identical SOT23-3 pinout (IN, OUT, GND) and package dimensions. This allows drop-in replacement across output voltages (1.25V–5.0V) without PCB redesign, provided input voltage and load requirements are re-verified for the new variant.
MAX6065BEUR-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:
- ±0.4%
- Temperature Coefficient:
- 30ppm/°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
MAX6065BEUR-T FAQ
1.How can I place an order for MAX6065BEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6065BEUR-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 MAX6065BEUR-T reliable?
The price and inventory of MAX6065BEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6065BEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6065BEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6065BEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6065BEUR-T?
MAX6065BEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6065BEUR-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 MAX6065BEUR-T?
For technical support, including MAX6065BEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6065BEUR-T requirements.
6.How does Aetrix verify that MAX6065BEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6065BEUR-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 MAX6065BEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6065BEUR-T?
All MAX6065BEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6065BEUR-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 MAX6065BEUR-T part is unused and in its original packaging.
Return procedure for MAX6065BEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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