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Analog Devices Inc./Maxim Integrated MAX6141EUR-T
- Part No.:
- MAX6141EUR-T
- Manufacturer:
- Analog Devices Inc./Maxim Integrated
- Category:
- Voltage Reference
- Package:
- TO-236-3, SC-59, SOT-23-3
- Datasheet:
-
MAX6141EUR-T.pdf
- Description:
- IC VREF SERIES 1% SOT23-3
- Quantity:
- Payment:
- Shipping:
Inventory:1,550
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Product details
Overview
The MAX6141EUR-T from Maxim Integrated is a precision 4.096V low-dropout, micropower, three-terminal voltage reference in a 3-pin SOT23-3 package, featuring ±1% initial accuracy, 15ppm/°C typical temperature coefficient, and 200mV dropout voltage-designed for high-accuracy analog signal chains in battery-powered data-acquisition systems.
For engineers reviewing the MAX6141EUR-T datasheet, MAX6141EUR-T pinout, MAX141EUR-T application, or MAX6141EUR-T equivalent, this device is selected for stable 4.096V reference generation in 3V/5V systems where supply current independence from input voltage (75µA typ.), low noise (25µVP-P, 0.1–10Hz), and capacitive-load stability up to 10nF are critical design requirements.
Technical Context
The MAX6141EUR-T implements a bandgap-based reference core with internal trimming for 4.096V output, optimized for operation from 4.3V to 12.6V input. Its supply current remains stable across input voltage variation (∆IQ/∆VIN = 1.7–6 µA/V), enabling consistent performance in fluctuating supply rails.
It delivers 4.096V with guaranteed output tolerance of ±0.081V over –40°C to +85°C, supported by load regulation of 0.55–1.6 mV/mA (sourcing) and 1.65–16 mV/mA (sinking), and line regulation of 2–50 µV/V-making it suitable for ADC/DAC biasing and sensor excitation where reference drift directly impacts measurement fidelity.
Key Specifications
| Parameter | Value and Actual Design Meaning |
|---|---|
| Output Voltage | 4.096V ±0.081V (–40°C to +85°C); enables precise 12-bit DAC/ADC full-scale alignment without calibration. |
| Initial Accuracy | ±1% at +25°C; reduces system-level gain error in closed-loop instrumentation amplifiers. |
| Tempco | 15ppm/°C typ., ≤50ppm/°C max; contributes ≤0.21mV drift over 0–70°C ambient range. |
| Dropout Voltage | 200mV at 1mA load; supports operation from 4.3V input in 5V systems with margin. |
| Supply Current | 78–105µA at +25°C; draws <100µA continuously, extending coin-cell life beyond 5 years at 10µA average system load. |
| Noise (0.1–10Hz) | 25µVP-P; limits RMS noise contribution to <10µV in 16-bit SAR ADC reference inputs. |
| Capacitive Load Stability | Stable with 0–10nF output capacitance; eliminates need for external compensation in DAC buffer circuits. |
Pinout & Package
MAX6141EUR-T is housed in a RoHS-compliant 3-pin SOT23-3 package (JEDEC MO-178AA), with 1.3mm × 0.8mm footprint and 0.95mm height-optimized for space-constrained portable PCB layouts.
| Pin/Terminal | Circuit Role | Design Meaning |
|---|---|---|
| 1 (IN) | Input Supply Terminal | Accepts 4.3V–12.6V DC; must be bypassed with ≥0.1µF ceramic capacitor near pin for transient immunity. |
| 2 (OUT) | Precision Reference Output | Delivers regulated 4.096V; drives loads up to 1mA while maintaining specified accuracy and noise. |
| 3 (GND) | Analog Ground Reference | Low-impedance return path; must be connected to clean analog ground plane, separate from digital return if mixed-signal layout. |
Key Features
| Feature | Design Value |
|---|---|
| Low Dropout (200mV) | Enables use in 4.3V-input 5V systems with >200mV headroom-critical for brown-out resilience in industrial sensors. |
| Supply Current Independence | IQ varies only 1.7–6 µA/V with input voltage; eliminates reference gain shift during battery discharge in handheld meters. |
| Capacitive Load Tolerance | Stable with 0–10nF output capacitance; allows direct connection to ADC sample-and-hold inputs without isolation resistors. |
| Low 0.1–10Hz Noise | 25µVP-P noise floor; ensures <0.0006% reference-induced error in 16-bit thermocouple measurement front-ends. |
| Thermal Hysteresis | 80ppm max; prevents repeatability loss after thermal cycling in field-deployed environmental monitors. |
Applications
| Portable Data Loggers | Industrial Sensor Transmitters |
|---|---|
Use Scenario: Battery-powered environmental sensor node logging temperature, humidity, and pressure at 1Hz for 5+ years on CR2032. IC Role / Device Role / Timing Role: Provides stable 4.096V reference for 16-bit sigma-delta ADC measuring RTD and bridge sensors. Use Value: 78µA quiescent current and 200mV dropout extend battery life; ±1% initial accuracy avoids factory calibration. | Use Scenario: 4–20mA loop-powered transmitter conditioning analog sensor signals in hazardous-area process plants. IC Role / Device Role / Timing Role: Supplies precision reference for current-loop DAC and sensor signal conditioning op-amps. Use Value: 50ppm/°C max tempco ensures <±0.35% full-scale error over –40°C to +85°C operating range. |
| Medical Patient Monitors | Test & Measurement Equipment |
Use Scenario: Portable ECG module acquiring biopotential signals with 100dB SNR requirement and 3.3V rail. IC Role / Device Role / Timing Role: References 12-bit SAR ADC sampling lead-II differential voltage at 1kSPS. Use Value: 25µVP-P (0.1–10Hz) noise prevents baseline wander; 10nF capacitive load stability simplifies anti-alias filter design. | Use Scenario: Benchtop multimeter requiring 0.01% DC voltage measurement accuracy across –10°C to +50°C lab environments. IC Role / Device Role / Timing Role: Primary reference source for auto-ranging ADC and calibration circuitry. Use Value: 80ppm thermal hysteresis ensures repeatable readings after power cycling; SO-8 and SOT23-3 variants support both prototyping and production. |
Equivalent & Alternatives
The following parts are listed as comparable options for similar voltage reference applications.
| Alternative Part | Technical Difference | Application Difference | Selection Advice |
|---|---|---|---|
| REF43GUE | 4.096V, 12ppm/°C max, 85µA IQ, 5-pin SOT23; higher accuracy but larger package and no SOT23-3 option. | Used in metrology-grade instruments where 0.05% total error budget demands tighter tempco. | Select REF43GUE when tempco <12ppm/°C is mandatory and board area permits 5-pin layout. |
| ADR3440ARJZ-R7 | 4.096V, 10ppm/°C max, 120µA IQ, 5-pin SOT23; lower noise (12µVP-P) but higher quiescent current and no 3-pin variant. | Preferred in low-noise audio ADC references where 12µVP-P noise justifies 50% higher IQ. | Choose ADR3440ARJZ-R7 only if sub-15µVP-P noise is required and supply current penalty is acceptable. |
Compared with REF43GUE and ADR3440ARJZ-R7, the MAX6141EUR-T offers the only 3-pin SOT23-3 footprint at 4.096V with <100µA IQ and proven 10nF capacitive load stability-making it optimal for ultra-compact, battery-sensitive designs where pin count and layout simplicity are prioritized over marginal tempco or noise improvements.
Availability
MAX6141EUR-T is available at Aetrix Electronics and suitable for portable medical devices, industrial 4–20mA transmitters, and battery-powered data loggers requiring stable component supply with full traceability and long-term lifecycle support.
Supply support for MAX6141EUR-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 and mixed-signal ICs for industrial, automotive, and communications applications-with emphasis on low-power, high-accuracy signal conditioning.
The MAX61xx family was engineered specifically for micropower, low-dropout voltage reference needs in space- and energy-constrained systems-delivering stable outputs across wide temperature and supply ranges without external compensation.
FAQ
What is the maximum input voltage rating for the MAX6141EUR-T?
The MAX6141EUR-T has an absolute maximum input voltage of +13.5V, but its specified operational range is 4.3V to 12.6V. Operation above 12.6V may cause parametric degradation or reliability risk, and the device is not characterized beyond that limit. For robust 12V system designs, 12.6V represents the upper validated boundary for guaranteed performance per the datasheet's Electrical Characteristics table.
Does the MAX6141EUR-T require an output capacitor for stability?
No, the MAX6141EUR-T does not require an output capacitor and is explicitly characterized as stable with capacitive loads from 0nF to 10nF. Adding capacitance within this range will not induce oscillation or degrade settling time. However, exceeding 10nF may compromise transient response and should be avoided unless validated per application-specific testing.
What is the guaranteed temperature coefficient specification for the MAX6141EUR-T over its full operating range?
The MAX6141EUR-T guarantees a temperature coefficient of ≤50ppm/°C over its full operating range of –40°C to +85°C. This is a worst-case limit confirmed by production testing; typical units exhibit 15ppm/°C, but system-level designs must budget for the 50ppm/°C maximum to ensure accuracy compliance across temperature extremes.
Can the MAX6141EUR-T be used in a 3.3V supply system?
No-the MAX6141EUR-T requires a minimum input voltage of 4.3V to maintain regulation at its 4.096V output due to its 200mV dropout specification. In a 3.3V system, the input would fall 1.2V below the required minimum, preventing proper operation. For 3.3V systems, consider the MAX6125EUR-T (2.5V output) or MAX6160EUS-T (adjustable) instead.
What is the top-marking code for the MAX6141EUR-T in SOT23-3 package?
The MAX6141EUR-T carries the top-marking code "ECAA" laser-etched on the package surface. This marking is standardized across Maxim's production lot traceability system and corresponds exclusively to the 4.096V, –40°C to +85°C, SOT23-3 variant of the MAX6141.
MAX6141EUR-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:
- 1 mA
- Tolerance:
- ±1%
- Temperature Coefficient:
- 50ppm/°C
- Noise - 0.1Hz to 10Hz:
- 25µVp-p
- Noise - 10Hz to 10kHz:
- 700µVp-p
- Voltage - Input:
- 4.3V ~ 12.6V
- Current - Supply:
- 130µA
- Current - Cathode:
- -
- Operating Temperature:
- -40°C ~ 85°C (TA)
- Grade:
- -
- Qualification:
- -
- Mounting Type:
- Surface Mount
- Supplier Device Package:
- SOT-23-3
MAX6141EUR-T FAQ
1.How can I place an order for MAX6141EUR-T through Aetrix?
Please submit a Request for Quotation (RFQ) for MAX6141EUR-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 MAX6141EUR-T reliable?
The price and inventory of MAX6141EUR-T are updated periodically and may fluctuate due to market conditions. Stock and pricing data are typically refreshed every 24 hours. Quotation validity for MAX6141EUR-T is usually 5 days.
3.What payment methods are accepted for MAX6141EUR-T?
We accept Wire Transfer, PayPal, Credit Card, Western Union, MoneyGram, and Escrow for MAX6141EUR-T transactions.
Note: Certain payment methods may incur a processing fee.
4.How is shipping managed for MAX6141EUR-T?
MAX6141EUR-T orders can be shipped via leading logistics carriers, including DHL, UPS, FedEx, TNT, or Registered Mail.
Once your MAX6141EUR-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 MAX6141EUR-T?
For technical support, including MAX6141EUR-T datasheets, pinout diagrams, or application guidance, please contact our engineering support team. They can provide detailed documentation and assistance for your MAX6141EUR-T requirements.
6.How does Aetrix verify that MAX6141EUR-T is sourced from the original manufacturer or authorized distributors?
All MAX6141EUR-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 MAX6141EUR-T meets industry standards.
7.What is the process for return or replacement of MAX6141EUR-T?
All MAX6141EUR-T units undergo pre-shipment inspection (PSI). If there is an issue with MAX6141EUR-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 MAX6141EUR-T part is unused and in its original packaging.
Return procedure for MAX6141EUR-T:
1.Submit a request within 90 days.
2.Obtain a Return Material Authorization (RMA) from Aetrix.
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