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Analog Devices Inc./Maxim Integrated MAX6066BEUR-T
- Part No.:
- MAX6066BEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6066BEUR-T.pdf
- Description:
- IC VREF SERIES 0.4% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,867
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Product details
Overview
MAX6066BEUR-T from Maxim Integrated is a precision, low-dropout, micropower 2.5V voltage reference in a 3-pin SOT23 package. It delivers ±0.4% initial accuracy, 20ppm/°C max temperature coefficient, and supports 5mA source / 2mA sink load current. Designed for high-accuracy ADC biasing and portable battery-powered systems requiring stable low-voltage references.
For engineers reviewing the MAX6066BEUR-T datasheet, MAX6066BEUR-T pinout, MAX6066BEUR-T application, or MAX6066BEUR-T equivalent, key selection criteria include dropout voltage (≤200mV at 1mA), ultra-low 90µA typical supply current, absence of required output capacitor, and guaranteed operation across –40°C to +85°C.
Technical Context
The MAX6066BEUR-T is a three-terminal series-mode voltage reference featuring proprietary curvature-correction circuitry and laser-trimmed thin-film resistors. Its architecture eliminates dependence on external compensation capacitors and achieves supply current variation of only 3.3–8.0 µA/V across 2.7V to 12.6V input range.
It operates with a minimum input voltage of VOUT + 0.2V (i.e., ≥2.7V), maintains stability with capacitive loads, and exhibits 130ppm output voltage hysteresis after thermal cycling. Noise performance is specified as 27µVp-p (0.1Hz–10Hz) and 30µVRMS (10Hz–10kHz).
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 2.500V ±0.4% (2.490V to 2.510V at +25°C) - enables precise 2.5V system rail or ADC reference without calibration. |
| Temp. Coefficient | ≤20ppm/°C (max) - ensures ≤±0.5mV drift over –40°C to +85°C ambient, critical for measurement integrity. |
| Dropout Voltage | ≤200mV at 1mA load - allows operation from 2.7V supply, ideal for single-cell Li-ion or 3.3V rail-derived systems. |
| Supply Current | 90µA (typ), ≤125µA (max) - minimizes quiescent power draw; variation ≤8µA/V enables predictable battery life modeling. |
| Load Current | Sources up to 5mA / sinks up to 2mA - directly drives SAR ADC reference inputs or op-amp bias networks without buffering. |
| Noise (0.1–10Hz) | 27µVp-p - low enough to avoid degrading ENOB in 16-bit+ ADCs when used as reference source. |
| Line Regulation | ≤300µV/V - limits output change to <0.12mV per volt of input variation, supporting unregulated supply inputs. |
Pinout & Package
MAX6066BEUR-T is housed in a 3-pin SOT23-3 package (JEDEC MO-178AA), 1.3mm × 2.9mm footprint, 1.0mm height, surface-mount compatible.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Voltage Supply | Accepts 2.7V to 12.6V; internal regulation rejects ripple; no external resistor needed unlike shunt references. |
| 2 (OUT) | Precision Reference Output | Delivers stable 2.5V; capable of sourcing/sinking load current; stable with 0–1µF capacitive loads. |
| 3 (GND) | Analog Ground Reference | Low-impedance return path; must be connected directly to system ground plane to maintain accuracy and noise immunity. |
Key Features
| Feature | Design Value |
|---|---|
| No output capacitor required | Internally compensated design eliminates need for external stabilization capacitor, saving PCB area and BOM cost. |
| Stable with capacitive loads | Operates reliably with 0–1µF output capacitance, simplifying interface to ADCs or filters without stability analysis. |
| Ultra-low supply current | 90µA typical draw enables >10-year battery life in coin-cell–powered IoT sensors with periodic wake-up. |
| Low dropout | 200mV max dropout at 1mA allows use with 2.7V supplies-critical for energy-harvesting and low-voltage microcontroller systems. |
| High output current drive | 5mA sourcing capability directly powers reference inputs of multiple precision ADCs or instrumentation amplifiers. |
Applications
| Portable Battery-Powered Systems | High-Resolution ADC Biasing |
|---|---|
|
Use Scenario: Compact handheld DMM or portable gas sensor with coin-cell or single Li-ion battery. IC Role / Device Role: Primary 2.5V reference for 16-bit sigma-delta ADC and analog front-end. Use Value: 90µA quiescent current extends battery life; 20ppm/°C TC ensures measurement repeatability across operating temperature range. |
Use Scenario: Industrial data acquisition module with multi-channel 18-bit SAR ADC. IC Role / Device Role: Low-noise, high-current reference source for ADC VREF pin and PGA bias network. Use Value: 27µVp-p noise and 5mA drive eliminate need for external buffer, reducing component count and layout complexity. |
| Notebook Computer Power Monitoring | Precision 3V/5V System Calibration |
|
Use Scenario: Real-time battery voltage and system rail monitoring in ultrabook power management IC. IC Role / Device Role: Stable 2.5V reference for internal ADC measuring 3.3V, 5V, and battery rails. Use Value: ±0.4% initial accuracy and 130ppm hysteresis ensure consistent calibration across thermal cycles and field lifetime. |
Use Scenario: Factory calibration station for medical-grade patient monitors requiring traceable 2.5V reference. IC Role / Device Role: Primary reference in automated test equipment verifying 3V/5V LDO outputs and sensor signal chains. Use Value: Laser-trimmed thin-film resistors and curvature correction deliver metrology-grade stability without oven control. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3425BRJZ-R7 | 2.5V, ±0.1% initial accuracy, 3ppm/°C TC, 4.5µA supply current, SC70-5 package (5-pin) | Lower noise (10µVp-p) and tighter TC, but requires external decoupling and has higher pin count | Select for ultra-high-precision metrology where 0.1% accuracy and sub-5ppm TC outweigh size and simplicity trade-offs. |
| REF3025AIDBZR | 2.5V, ±0.2% initial accuracy, 50ppm/°C TC, 50µA supply current, SOT23-3 package | Higher TC and looser initial tolerance; lower supply current but reduced thermal stability | Choose for cost-sensitive, non-critical applications where 50ppm/°C drift is acceptable and power is more constrained than accuracy. |
Compared with ADR3425BRJZ-R7 and REF3025AIDBZR, the MAX6066BEUR-T offers the best balance of SOT23-3 simplicity, 20ppm/°C stability, and 5mA drive capability-making it optimal for space-constrained, battery-powered precision systems needing robust load driving without external components.
Availability
MAX6066BEUR-T is available at Aetrix Electronics and suitable for portable battery-powered systems, high-resolution ADC biasing, and notebook computer power monitoring requiring stable component supply and long-term parametric consistency.
Supply support for MAX6066BEUR-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 micropower, low-dropout voltage referencing in space- and battery-constrained systems-emphasizing zero-output-capacitor operation, wide input range, and guaranteed performance across –40°C to +85°C.
FAQ
What is the maximum input voltage rating for MAX6066BEUR-T?
The absolute maximum input voltage for MAX6066BEUR-T is +13.5V referenced to GND. However, the recommended operating range is (VOUT + 0.2V) to 12.6V - i.e., 2.7V to 12.6V - as specified in the Electrical Characteristics table. Exceeding 12.6V may degrade long-term reliability even if within absolute ratings.
Does MAX6066BEUR-T require an external output capacitor for stability?
No, MAX6066BEUR-T does not require an external output capacitor for stability. Its internally compensated architecture remains stable with 0–1µF capacitive loads. An optional 0.1µF ceramic capacitor may be added to improve transient response under step-load conditions, but it is not necessary for basic operation.
What is the dropout voltage specification for MAX6066BEUR-T at full load?
The dropout voltage for MAX6066BEUR-T is specified as ≤200mV at 1mA load current. At 5mA source load, typical dropout increases to ~300mV (per Figure MAX6066 toc07). To guarantee 2.5V output, the input must therefore be ≥2.8V at 5mA - confirming suitability for 3.3V rail or boosted 2.7V sources.
How does the supply current of MAX6066BEUR-T vary with input voltage?
MAX6066BEUR-T exhibits a supply current variation of 3.3–8.0 µA/V across its input range (2.7V to 12.6V), meaning total IIN changes by ≤80µA over the full range. At 2.7V input, typical IIN is ~90µA; at 12.6V, it rises to ~125µA max - enabling accurate power budgeting in wide-input systems.
Is MAX6066BEUR-T suitable for driving the reference input of a 16-bit SAR ADC?
Yes, MAX6066BEUR-T is well-suited for driving 16-bit SAR ADC reference inputs. With 27µVp-p (0.1–10Hz) noise, ±0.4% initial accuracy, and 5mA sourcing capability, it meets or exceeds requirements for 16-bit (≈9.7µV LSB at 2.5V) systems - especially when paired with proper PCB layout and grounding.
MAX6066BEUR-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:
- ±0.4%
- Temperature Coefficient:
- 30ppm/°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
MAX6066BEUR-T FAQ
1.How can I place an order for MAX6066BEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6066BEUR-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 MAX6066BEUR-T reliable?
The price and inventory of MAX6066BEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6066BEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6066BEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6066BEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6066BEUR-T?
MAX6066BEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6066BEUR-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 MAX6066BEUR-T?
For technical support, including MAX6066BEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6066BEUR-T requirements.
6.How does Aetrix verify that MAX6066BEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6066BEUR-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 MAX6066BEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6066BEUR-T?
All MAX6066BEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6066BEUR-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 MAX6066BEUR-T part is unused and in its original packaging.
Return procedure for MAX6066BEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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