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Analog Devices Inc./Maxim Integrated MAX6041AEUR-T
- Part No.:
- MAX6041AEUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6041AEUR-T.pdf
- Description:
- IC VREF SERIES 0.2% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,524
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Product details
Overview
The MAX6041AEUR-T from Analog Devices is a precision, low-dropout, micropower series-mode voltage reference in SOT23-3 package, delivering 4.096V output with ±0.2% initial accuracy, <15ppm/°C temperature coefficient, and 100mV dropout at 500μA load current. It operates from (VOUT + 0.2V) to 12.6V input and supports sourcing/sinking ±500μA - ideal for high-accuracy ADC/DAC biasing in battery-powered data acquisition systems.
For engineers reviewing the MAX6041AEUR-T datasheet, MAX6041AEUR-T pinout, MAX6041AEUR-T application, or MAX6041AEUR-T equivalent, key selection criteria include its ultra-low 35μA max quiescent current, supply-independent operation (0.8μA/V variation), stability with 0–2.2nF capacitive loads, and guaranteed performance across –40°C to +85°C.
Technical Context
This device uses a proprietary curvature-correction circuit and laser-trimmed thin-film resistors to achieve <15ppm/°C tempco and ±0.2% initial accuracy over –40°C to +85°C. Its series-mode architecture eliminates external bias resistors and compensation capacitors required by shunt references.
It features internal compensation, stable operation without external capacitance, and dynamic performance including 100μVp-p (0.1–10Hz) noise, 77dB ripple rejection at 120Hz, and 160μs turn-on settling to 0.1% with 50pF load.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.2% at +25°C - enables precise 12-bit ADC full-scale calibration with minimal gain error. |
| Tempco | <15ppm/°C (–40°C to +85°C) - ensures ≤±0.5mV drift over industrial temperature range. |
| Quiescent Current | ≤35μA - extends battery life in portable instruments; supply-voltage independent (0.8μA/V variation). |
| Dropout Voltage | 100mV at 500μA - allows operation from 4.2V Li-ion cells down to end-of-discharge (~3.4V system margin). |
| Load Regulation | 0.15μV/μA sourcing - maintains output stability under varying DAC or sensor bias currents. |
| Capacitive Load Stability | 0–2.2nF - eliminates need for external compensation capacitor, saving PCB area in space-constrained designs. |
| Line Regulation | 25μV/V - minimizes output variation during supply rail fluctuations in noisy embedded systems. |
Pinout & Package
SOT23-3 package: 1.45mm × 2.9mm × 1.1mm body, gull-wing leads, RoHS-compliant, JEDEC MO-178AA compliant.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Supply Voltage Input | Accepts 4.296V to 12.6V; must exceed VOUT + 200mV for regulation; withstands –0.3V to +13.5V absolute max. |
| 2 (OUT) | Reference Voltage Output | Provides stable 4.096V; sources/sinks ±500μA; short-circuit safe to GND or IN for ≤60s if VIN ≥6V. |
| 3 (GND) | Ground Reference | Low-impedance return path; must be connected directly to clean analog ground plane to minimize noise coupling. |
Key Features
| Feature | Design Value |
|---|---|
| Laser-trimmed thin-film resistors | Enables ±0.2% initial accuracy and <15ppm/°C tempco without external calibration. |
| Proprietary curvature-correction circuit | Compensates bandgap nonlinearity across –40°C to +85°C, eliminating need for external tempco correction. |
| No external compensation capacitor required | Reduces BOM count and PCB footprint; stable with 0–2.2nF load capacitance - critical for miniaturized sensors. |
| Series-mode architecture | Eliminates wasteful external bias resistor; supply current remains ~35μA regardless of VIN (2.5–12.6V), maximizing efficiency. |
| Ultra-low dropout (100mV @ 500μA) | Supports operation from single-cell Li-ion (3.0–4.2V) with sufficient headroom for regulation at full load. |
Applications
| Portable Data Loggers | Industrial Sensor Signal Chains |
|---|---|
Use Scenario: Battery-powered environmental monitors logging temperature, humidity, and pressure using 12-bit SAR ADCs. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for ADC VREF pin, enabling full-scale resolution without software gain correction. Use Value: 0.2% initial accuracy and <15ppm/°C tempco ensure ≤±1 LSB error over temperature, eliminating field recalibration. | Use Scenario: 4–20mA loop-powered transmitters with integrated signal conditioning and isolation. IC Role / Device Role / Timing Role: Supplies precision bias voltage to instrumentation amplifiers and voltage-to-current converters in analog front-ends. Use Value: 35μA quiescent current minimizes burden on loop power budget; 100mV dropout allows use with low-headroom isolated DC-DC outputs. |
| Medical Wearable Biosensors | Test & Measurement Equipment |
Use Scenario: ECG/PPG modules requiring low-noise, stable excitation voltage for photodiode biasing and analog front-end gain setting. IC Role / Device Role / Timing Role: Delivers clean 4.096V reference to programmable-gain amplifier (PGA) and ADC reference inputs. Use Value: 100μVp-p (0.1–10Hz) low-frequency noise prevents baseline wander in sub-Hz biosignals; 2.2nF load tolerance simplifies layout near sensitive analog nodes. | Use Scenario: Benchtop multimeters and automated test equipment requiring traceable voltage standards for self-calibration routines. IC Role / Device Role / Timing Role: Serves as internal reference for auto-zeroing circuits and digital multimeter ADC subsystems. Use Value: 130ppm temperature hysteresis and 50ppm/1000h long-term stability support metrology-grade repeatability without frequent recalibration. |
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 tempco, but 65μA max quiescent current - 86% higher than MAX6041AEUR-T. | Higher accuracy suits metrology-grade instruments; higher supply current limits battery life in portable devices. | Select ADR3440BRJZ-R7 only when <0.1% initial accuracy is mandatory and power budget permits >60μA. |
| REF3040AIDBZR | 4.096V output, ±0.2% initial accuracy, 100ppm/°C tempco (max), 50μA max quiescent current - significantly worse tempco and higher current. | Lower cost option for non-critical industrial controls where ±10mV drift over temperature is acceptable. | Choose REF3040AIDBZR only for cost-sensitive, non-battery applications where tempco >50ppm/°C is tolerable. |
Compared with ADR3440BRJZ-R7 and REF3040AIDBZR, the MAX6041AEUR-T delivers the optimal balance of ultra-low quiescent current (≤35μA), industry-leading tempco (<15ppm/°C), and proven stability with capacitive loads - making it the preferred choice for portable, high-precision measurement systems.
Availability
MAX6041AEUR-T is available at Aetrix Electronics and suitable for portable data loggers, industrial sensor signal chains, and medical wearable biosensors requiring stable component supply with guaranteed long-term availability.
Supply support for MAX6041AEUR-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 MAX6041AEUR-T belongs to the MAX60xx family of precision, low-power, low-dropout voltage references designed specifically for battery-operated, space-constrained instrumentation and data acquisition systems.
FAQ
What is the maximum load current the MAX6041AEUR-T can source or sink?
The MAX6041AEUR-T can source or sink up to ±500μA while maintaining regulation and specified accuracy. This capability supports direct driving of ADC reference inputs, op-amp bias networks, and low-current sensor excitation circuits without external buffering. Exceeding ±500μA may cause output voltage deviation beyond the 0.2% initial accuracy specification. The device remains short-circuit safe to GND or IN for continuous operation if VIN < 6V, or up to 60 seconds if VIN ≥ 6V.
Does the MAX6041AEUR-T require an external output capacitor for stability?
No, the MAX6041AEUR-T does not require an external output capacitor for stability. It is internally compensated and remains stable with capacitive loads ranging from 0 to 2.2nF. Adding a capacitor (e.g., 100pF–1nF) may improve transient response in applications with step-load changes, but it is optional and not needed for basic regulation. This eliminates a common BOM item and saves PCB area - a key advantage in SOT23-3 footprint designs.
What is the minimum input voltage required for the MAX6041AEUR-T to regulate at 4.096V?
The minimum input voltage for the MAX6041AEUR-T is VOUT + 200mV = 4.296V. Below this threshold, the device enters dropout and output voltage drops linearly with input. At 500μA load, dropout voltage is typically 100mV (max 200mV), meaning regulation is maintained down to ~4.196V under nominal conditions. For reliable start-up, the supply must deliver up to 200μA additional current during turn-on when VIN is near the minimum.
How does the supply current of the MAX6041AEUR-T vary with input voltage?
The MAX6041AEUR-T exhibits exceptionally stable supply current: quiescent current is ≤35μA and varies by only 0.8μA per volt of input voltage change (2.5V ≤ VIN ≤ 12.6V). This near-constant current draw - unlike shunt references whose current scales with VIN - maximizes battery efficiency across wide input ranges. For example, supply current changes by just 2.4μA when VIN rises from 4.3V to 7.3V, preserving predictable power budgeting in portable systems.
Is the MAX6041AEUR-T pin-compatible with other members of the MAX60xx family?
Yes, all MAX60xx devices (including MAX6012, MAX6021, MAX6025, MAX6030, MAX6041, MAX6045, MAX6050) share identical SOT23-3 pinout (IN, OUT, GND) and package dimensions. This allows drop-in replacement across output voltages (1.247V to 5.000V) without PCB layout changes. However, input voltage range, dropout, noise, and settling time differ by model - verify electrical compatibility for the target application before substitution.
MAX6041AEUR-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:
- ±0.2%
- Temperature Coefficient:
- 20ppm/°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
MAX6041AEUR-T FAQ
1.How can I place an order for MAX6041AEUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6041AEUR-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 MAX6041AEUR-T reliable?
The price and inventory of MAX6041AEUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6041AEUR-T is usually 5 days.
3.What payment methods are accepted for MAX6041AEUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6041AEUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6041AEUR-T?
MAX6041AEUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6041AEUR-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 MAX6041AEUR-T?
For technical support, including MAX6041AEUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6041AEUR-T requirements.
6.How does Aetrix verify that MAX6041AEUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6041AEUR-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 MAX6041AEUR-T meets industry standards.
7.What is the process for return or replacement of MAX6041AEUR-T?
All MAX6041AEUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6041AEUR-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 MAX6041AEUR-T part is unused and in its original packaging.
Return procedure for MAX6041AEUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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