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Analog Devices Inc./Maxim Integrated MAX6066AEUR-T
- Part No.:
- MAX6066AEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6066AEUR-T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:4,716
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Product details
Overview
MAX6066AEUR-T from Maxim Integrated is a precision, low-dropout, micropower series voltage reference delivering a stable 2.500V 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 with as little as 200mV dropout at 1mA load - ideal for high-accuracy ADC biasing in portable battery-powered systems.
For engineers reviewing the MAX6066AEUR-T datasheet, MAX6066AEUR-T pinout, MAX6066AEUR-T application, or MAX6066AEUR-T equivalent, key selection considerations include its SOT23-3 package footprint, absence of required output capacitor, supply-current independence from input voltage (≤8µA/V variation), and compatibility with capacitive loads without external compensation.
Technical Context
The MAX6066AEUR-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 stability capacitors.
It operates across an input range of (VOUT + 0.2V) to 12.6V - i.e., 2.7V to 12.6V - and maintains regulation under sourcing (0–5mA) and sinking (–2mA to 0) load conditions, with line regulation ≤300µV/V and load regulation ≤0.9mV/mA.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.2% (±5mV) at +25°C - enables direct interface with 2.5V ADC references and precision analog signal chains |
| Temp Coefficient | 20ppm/°C max - ensures ≤±0.5mV output shift over full –40°C to +85°C range |
| Dropout Voltage | 200mV max at 1mA load - supports operation from 2.7V supply in low-voltage battery systems |
| Quiescent Current | 90µA typical - extends battery life in always-on sensor nodes and portable instrumentation |
| Load Drive | Sources 5mA / sinks 2mA - drives ADC reference inputs, op-amp bias networks, and small DACs directly |
| Noise (0.1–10Hz) | 27µVp-p - low enough for 16-bit+ data acquisition without added filtering |
| PSRR | 86dB at 120Hz - rejects ripple from switching regulators feeding the reference input |
Pinout & Package
MAX6066AEUR-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 PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply Terminal | Accepts 2.7V–12.6V input; requires no series resistor; supplies internal regulator and output stage |
| 2 (OUT) | Precision Reference Output | Delivers stable 2.500V; capable of sourcing/sinking load current; stable with ≥0.1µF capacitive loads |
| 3 (GND) | Analog Ground Reference | Return path for internal bandgap core and output stage; must be connected to clean system ground plane |
Key Features
| Feature | Design Value |
|---|---|
| Ultra-low tempco | 20ppm/°C max - minimizes gain/offset drift in precision measurement front-ends |
| No external capacitor needed | Fully internally compensated - saves board area and eliminates capacitor-related aging or ESR risks |
| Supply-current independence | ≤8µA/V variation over 2.7–12.6V - simplifies power budgeting across varying battery states |
| Low dropout | 200mV max at 1mA - enables use with single Li-ion cell (3.0–4.2V) or dual NiMH (2.4–3.0V) |
| High output drive | 5mA source / 2mA sink - eliminates need for external buffer in most 12–16-bit ADC applications |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensors logging temperature, humidity, and pressure over multi-year deployments. IC Role / Device Role / Timing Role: Provides stable 2.500V reference for 16-bit SAR ADCs and low-power microcontroller VREF inputs. Use Value: 90µA quiescent current and 20ppm/°C tempco ensure >10-year calibration stability and minimal battery drain between wake cycles. |
Use Scenario: 4–20mA loop-powered transmitters converting RTD or strain-gauge signals in factory automation. IC Role / Device Role / Timing Role: Supplies excitation voltage and ADC reference in isolated analog front-end with <100ppm total error budget. Use Value: ±0.2% initial accuracy and no-output-capacitor design reduce component count while meeting IEC 61000-4 immunity requirements. |
| Medical Point-of-Care Devices | Test & Measurement DMMs |
Use Scenario: Handheld blood glucose meters and pulse oximeters requiring clinical-grade accuracy and FDA-compliant long-term stability. IC Role / Device Role / Timing Role: Precision reference for analog signal conditioning and ADC conversion of biosensor outputs. Use Value: 130ppm hysteresis and 62ppm/1000hr long-term stability meet ISO 13485 reliability thresholds without recalibration. |
Use Scenario: Benchtop digital multimeters needing stable 2.5V reference for autoranging and 5½-digit resolution. IC Role / Device Role / Timing Role: Primary reference for integrating ADC and secondary reference for internal DAC calibration. Use Value: 27µVp-p (0.1–10Hz) noise and 86dB PSRR enable sub-10ppm measurement repeatability in noisy lab environments. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425ARJZ-R7 | 2.5V output, ±0.1% initial accuracy, 10ppm/°C max tempco, 125µA quiescent current, SOT23-5 package | Higher accuracy and lower tempco, but higher supply current and 5-pin package requires PCB redesign | Select when tighter initial tolerance and thermal stability outweigh layout constraints and power budget |
| REF3025AIDBZR | 2.5V output, ±0.2% initial accuracy, 50ppm/°C max tempco, 50µA quiescent current, SOT23-3 package | Lower quiescent current but significantly higher tempco; no internal compensation for capacitive loads | Select for ultra-low-power sleep modes where thermal drift is mitigated by software calibration |
Compared with ADR3425ARJZ-R7 and REF3025AIDBZR, the MAX6066AEUR-T offers optimal balance of SOT23-3 footprint, 20ppm/°C stability, 90µA consumption, and capacitor-free operation - making it preferred for space- and power-sensitive 2.5V reference designs where ±0.2% accuracy suffices.
Availability
MAX6066AEUR-T is available at Aetrix Electronics and suitable for portable medical devices, industrial sensor transmitters, handheld test equipment, and battery-powered data loggers requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6066AEUR-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) is a semiconductor company specializing in high-performance analog, mixed-signal, and power-management ICs for industrial, automotive, communications, and computing markets.
The MAX6061–MAX6068 family was designed specifically for space-constrained, battery-operated systems demanding precision voltage references with micropower operation, low dropout, and zero external components - targeting portable instrumentation and high-resolution data acquisition.
FAQ
What is the maximum input voltage for MAX6066AEUR-T?
The MAX6066AEUR-T supports an input voltage range from (VOUT + 0.2V) to 12.6V - i.e., 2.7V to 12.6V. Absolute maximum rating is +13.5V on the IN pin. Exceeding 12.6V may degrade long-term stability or violate specified line regulation performance, so operation within the guaranteed range is recommended for production designs using MAX6066AEUR-T.
Does MAX6066AEUR-T require an output capacitor?
No, the MAX6066AEUR-T is internally compensated and does not require an 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 - a key advantage for ultra-compact PCB layouts using MAX6066AEUR-T.
What is the load current capability of MAX6066AEUR-T?
The MAX6066AEUR-T can source up to 5mA and sink up to 2mA while maintaining output accuracy within specifications. This bidirectional drive capability allows direct interfacing with ADC reference inputs, op-amp bias networks, and small DACs without external buffers - a critical feature distinguishing MAX6066AEUR-T from many micropower references limited to sourcing only.
How does the temperature coefficient of MAX6066AEUR-T affect system accuracy?
With a maximum temperature coefficient of 20ppm/°C, the MAX6066AEUR-T contributes ≤±0.5mV output change over its full –40°C to +85°C operating range. For a 2.5V reference, this translates to <0.02% full-scale error - sufficient for 14–16-bit precision systems where other components (e.g., ADC INL, resistor tolerances) dominate overall error. This performance is confirmed in MAX6066AEUR-T's production-tested electrical characteristics.
Is MAX6066AEUR-T pin-compatible with other parts in the MAX6061–MAX6068 family?
Yes, all MAX6061–MAX6068 variants, including MAX6066AEUR-T, share identical SOT23-3 pinout (IN, OUT, GND) and package dimensions. This allows drop-in replacement across output voltages (1.25V to 5.0V) without PCB changes - provided input voltage and load requirements remain compatible. The top-mark code (FZFM for MAX6066AEUR-T) enables visual identification on assembled boards.
MAX6066AEUR-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):
- 2.5V
- Voltage - Output (Max):
- -
- Current - Output:
- 5 mA
- Tolerance:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°C
- Noise - 0.1Hz to 10Hz:
- 27µVp-p
- Noise - 10Hz to 10kHz:
- 30µVrms
- Voltage - Input:
- 2.7V ~ 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
MAX6066AEUR-T FAQ
1.How can I place an order for MAX6066AEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6066AEUR-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 MAX6066AEUR-T reliable?
The price and inventory of MAX6066AEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6066AEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6066AEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6066AEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6066AEUR-T?
MAX6066AEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6066AEUR-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 MAX6066AEUR-T?
For technical support, including MAX6066AEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6066AEUR-T requirements.
6.How does Aetrix verify that MAX6066AEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6066AEUR-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 MAX6066AEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6066AEUR-T?
All MAX6066AEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6066AEUR-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 MAX6066AEUR-T part is unused and in its original packaging.
Return procedure for MAX6066AEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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