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Analog Devices Inc./Maxim Integrated MAX6041BEUR+T
- Part No.:
- MAX6041BEUR+T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6041BEUR+T.pdf
- Description:
- IC VREF SERIES 0.39% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:3,780
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Product details
Overview
MAX6041BEUR+T from Analog Devices is a precision series-mode voltage reference IC delivering 4.096V output with ±0.2% initial accuracy, <20ppm/°C temperature coefficient over –40°C to +85°C, and 100mV dropout at 500μA load current. It operates from (VOUT + 0.2V) to 12.6V input, draws only 27–35μA quiescent current, and supports bidirectional 500μA load current - ideal for high-accuracy ADC/DAC biasing in portable instrumentation.
For engineers reviewing the MAX6041BEUR+T datasheet, MAX6041BEUR+T pinout, MAX6041BEUR+T application, or MAX6041BEUR+T equivalent, key selection criteria include guaranteed 4.096V output tolerance, ultra-low supply current variation (0.8μA/V), stable operation with 0–2.2nF capacitive loads, and SOT23-3 footprint compatibility for space-constrained PCBs.
Technical Context
This device uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <20ppm/°C TC and ±0.2% initial accuracy across –40°C to +85°C. Its series-mode architecture eliminates external bias resistors and compensation capacitors required by shunt references.
It features internal compensation, delivers 0.15μV/μA sourcing load regulation and 0.20μV/μA sinking load regulation, and maintains stability without external components across its full 0–2.2nF capacitive load range - enabling direct connection to SAR ADC reference inputs and low-noise op-amp bias networks.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.2% at +25°C - matches standard 12-bit DAC/ADC full-scale reference point with minimal calibration overhead |
| Temp Coefficient | <20ppm/°C (–40°C to +85°C) - ensures ≤±0.8mV drift over industrial temperature range |
| Quiescent Current | 27–35μA - enables >10-year battery life in coin-cell-powered sensor nodes |
| Dropout Voltage | 100mV at 500μA load - supports operation from 4.2V Li-ion down to 4.196V without regulation loss |
| Load Regulation | 0.15μV/μA (source), 0.20μV/μA (sink) - holds output error <75μV across full ±500μA load swing |
| Capacitive Load Stability | 0–2.2nF - allows direct use with ADC sample capacitors and bypass networks without oscillation risk |
| Line Regulation | 25–160μV/V - contributes <0.04% error over full input voltage range (4.296V to 12.6V) |
Pinout & Package
SOT23-3 package (JEDEC TO-236AB), 2.92mm × 1.30mm × 1.00mm body, gull-wing leads, RoHS-compliant, tape-and-reel packaging for automated assembly.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 4.296V–12.6V input; supplies internal bandgap core and output stage |
| 2 (OUT) | Reference Voltage Output | Provides stable 4.096V output; sinks or sources up to ±500μA with sub-μV/μA regulation |
| 3 (GND) | Ground Reference | Low-impedance return path; must be connected directly to clean analog ground plane |
Key Features
| Feature | Design Value |
|---|---|
| No external resistor required | Series-mode architecture eliminates bias resistor - reduces BOM count and layout area vs. shunt references |
| No external capacitor needed | Internally compensated for 0–2.2nF load capacitance - removes need for stability capacitor in ADC reference paths |
| Supply-current independence | Only 0.8μA/V variation with input voltage - avoids dynamic supply current errors during battery discharge |
| Low dropout at full load | 100mV dropout at 500μA - enables use with 4.2V single-cell Li-ion while maintaining regulation margin |
| High noise immunity | 77dB ripple rejection at 120Hz - suppresses AC line artifacts in power-supply-referenced measurement systems |
Applications
| Portable Data Loggers | Industrial 4–20mA Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensor node recording temperature/humidity with 16-bit sigma-delta ADC. IC Role / Device Role / Timing Role: Provides precise 4.096V reference for ADC VREF input and microcontroller ADC calibration. Use Value: Enables ±0.005% full-scale measurement accuracy over –40°C to +85°C without recalibration. |
Use Scenario: Loop-powered field transmitter converting RTD signal to 4–20mA output using precision DAC. IC Role / Device Role / Timing Role: Supplies stable 4.096V reference to DAC and signal-conditioning op-amps. Use Value: Maintains <±0.1% current loop accuracy despite 12–36V loop supply variation and ambient temperature swings. |
| Medical Patient Monitors | Test & Measurement Equipment |
Use Scenario: Portable ECG front-end digitizing biopotential signals with low-noise instrumentation amplifier and 12-bit SAR ADC. IC Role / Device Role / Timing Role: Delivers low-noise 4.096V reference to ADC and analog front-end bias network. Use Value: Limits reference-induced noise to <100μVp-p (0.1–10Hz), preserving microvolt-level signal integrity. |
Use Scenario: Benchtop multimeter using dual-slope integration with precision 4.096V reference for 12-bit resolution. IC Role / Device Role / Timing Role: Serves as primary voltage reference for integrator and comparator thresholds. Use Value: Ensures <±2LSB absolute accuracy over 8-hour calibration interval with 50ppm/1000h long-term stability. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar precision voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| ADR3440BRJZ-R7 | 4.096V output, ±0.1% initial accuracy, 10ppm/°C TC, 4.5μA quiescent current, SOT23-5 package | Lower power but requires 5-pin layout; no sink capability; limited to 10mA max load | Select when ultra-low power (<5μA) dominates and sink current not required |
| REF3040AIDBZR | 4.096V output, ±0.2% initial accuracy, 50ppm/°C TC, 50μA quiescent current, SOT23-3 package | Higher TC and quiescent current; wider input range (2.2V–12V); no guaranteed 2.2nF load stability | Select when cost sensitivity outweighs TC and supply current requirements |
Compared with ADR3440BRJZ-R7, MAX6041BEUR+T offers bidirectional load drive and superior TC at higher quiescent current; compared with REF3040AIDBZR, it delivers 2.5× lower temperature drift and 30% lower supply current while maintaining identical SOT23-3 footprint and load-capacitance robustness.
Availability
MAX6041BEUR+T is available at Aetrix Electronics and suitable for portable instrumentation, industrial transmitters, medical diagnostics, and test equipment requiring stable component supply with guaranteed long-term parametric consistency.
Supply support for MAX6041BEUR+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
Analog Devices is a global leader in high-performance analog, mixed-signal, and digital signal processing semiconductors, headquartered in Wilmington, MA.
The MAX60xx family was designed specifically for precision, low-power, low-dropout voltage referencing in battery-operated and space-constrained systems - emphasizing initial accuracy, thermal stability, and minimal external component count.
FAQ
What is the guaranteed initial accuracy of the MAX6041BEUR+T?
The MAX6041BEUR+T guarantees ±0.2% initial accuracy at +25°C, corresponding to a 4.096V output tolerance of ±8.2mV (4.088V to 4.104V). This specification is production-tested and applies across the full –40°C to +85°C operating temperature range per the datasheet's Electrical Characteristics table for MAX6041.
Does the MAX6041BEUR+T require an external output capacitor for stability?
No, the MAX6041BEUR+T is internally compensated and stable with output capacitance ranging from 0 to 2.2nF - including zero capacitance. An external capacitor is optional and used only to improve transient response during load or supply steps; it is not required for basic DC regulation or frequency stability.
What is the minimum input voltage required for the MAX6041BEUR+T to maintain regulation?
The MAX6041BEUR+T requires a minimum input voltage of VOUT + 0.2V = 4.296V to maintain regulation under all conditions. At 500μA load current, the dropout voltage is specified as 100mV (max), meaning regulation is sustained as long as VIN ≥ 4.196V - but the guaranteed operational minimum is 4.296V per the Absolute Maximum Ratings and Electrical Characteristics tables.
Can the MAX6041BEUR+T both source and sink load current?
Yes, the MAX6041BEUR+T can source up to +500μA and sink up to –500μA from its OUT pin. This bidirectional capability enables direct interfacing with op-amp inputs, ADC reference buffers, and active filter networks without external level-shifting or current-steering components.
What is the temperature coefficient specification for the MAX6041BEUR+T over its full operating range?
The MAX6041BEUR+T has a maximum temperature coefficient of 20ppm/°C over the full –40°C to +85°C operating range. At the more restricted 0°C to +70°C range, the TC is further tightened to 15ppm/°C maximum - verified via the "box method" per Note 2 in the datasheet.
MAX6041BEUR+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):
- 4.096V
- Voltage - Output (Max):
- -
- Current - Output:
- 500 µA
- Tolerance:
- ±0.39%
- Temperature Coefficient:
- 30ppm/°C
- Noise - 0.1Hz to 10Hz:
- 100µVp-p
- Noise - 10Hz to 10kHz:
- 200µVrms
- Voltage - Input:
- 4.296V ~ 12.6V
- Current - Supply:
- 35µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6041BEUR+T FAQ
1.How can I place an order for MAX6041BEUR+T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6041BEUR+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 MAX6041BEUR+T reliable?
The price and inventory of MAX6041BEUR+T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6041BEUR+T is usually 5 days.
3.What payment methods are accepted for MAX6041BEUR+T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6041BEUR+T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6041BEUR+T?
MAX6041BEUR+T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6041BEUR+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 MAX6041BEUR+T?
For technical support, including MAX6041BEUR+T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6041BEUR+T requirements.
6.How does Aetrix verify that MAX6041BEUR+T is sourced from the original manufacturer or authorized distributors?
All MAX6041BEUR+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 MAX6041BEUR+T meets industry standards.
7.What is the process for return or replacement of MAX6041BEUR+T?
All MAX6041BEUR+T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6041BEUR+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 MAX6041BEUR+T part is unused and in its original packaging.
Return procedure for MAX6041BEUR+T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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